diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 00000000..ab1f4164
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Ignored default folder with query files
+/queries/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
new file mode 100644
index 00000000..f65f00bb
--- /dev/null
+++ b/.idea/compiler.xml
@@ -0,0 +1,18 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 00000000..8871c7b3
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/homework-java-ironlibrary.iml b/.idea/homework-java-ironlibrary.iml
new file mode 100644
index 00000000..d6ebd480
--- /dev/null
+++ b/.idea/homework-java-ironlibrary.iml
@@ -0,0 +1,9 @@
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml
new file mode 100644
index 00000000..712ab9d9
--- /dev/null
+++ b/.idea/jarRepositories.xml
@@ -0,0 +1,20 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 00000000..a24e3755
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,14 @@
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 00000000..821fdf28
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 00000000..35eb1ddf
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/ironLibraryApp/.gitattributes b/ironLibraryApp/.gitattributes
new file mode 100644
index 00000000..3b41682a
--- /dev/null
+++ b/ironLibraryApp/.gitattributes
@@ -0,0 +1,2 @@
+/mvnw text eol=lf
+*.cmd text eol=crlf
diff --git a/ironLibraryApp/.gitignore b/ironLibraryApp/.gitignore
new file mode 100644
index 00000000..667aaef0
--- /dev/null
+++ b/ironLibraryApp/.gitignore
@@ -0,0 +1,33 @@
+HELP.md
+target/
+.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
diff --git a/ironLibraryApp/.mvn/wrapper/maven-wrapper.properties b/ironLibraryApp/.mvn/wrapper/maven-wrapper.properties
new file mode 100644
index 00000000..c595b009
--- /dev/null
+++ b/ironLibraryApp/.mvn/wrapper/maven-wrapper.properties
@@ -0,0 +1,3 @@
+wrapperVersion=3.3.4
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.14/apache-maven-3.9.14-bin.zip
diff --git a/ironLibraryApp/mvnw b/ironLibraryApp/mvnw
new file mode 100644
index 00000000..bd8896bf
--- /dev/null
+++ b/ironLibraryApp/mvnw
@@ -0,0 +1,295 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Apache Maven Wrapper startup batch script, version 3.3.4
+#
+# Optional ENV vars
+# -----------------
+# JAVA_HOME - location of a JDK home dir, required when download maven via java source
+# MVNW_REPOURL - repo url base for downloading maven distribution
+# MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+# MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output
+# ----------------------------------------------------------------------------
+
+set -euf
+[ "${MVNW_VERBOSE-}" != debug ] || set -x
+
+# OS specific support.
+native_path() { printf %s\\n "$1"; }
+case "$(uname)" in
+CYGWIN* | MINGW*)
+ [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")"
+ native_path() { cygpath --path --windows "$1"; }
+ ;;
+esac
+
+# set JAVACMD and JAVACCMD
+set_java_home() {
+ # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched
+ if [ -n "${JAVA_HOME-}" ]; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ]; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD="$JAVA_HOME/jre/sh/java"
+ JAVACCMD="$JAVA_HOME/jre/sh/javac"
+ else
+ JAVACMD="$JAVA_HOME/bin/java"
+ JAVACCMD="$JAVA_HOME/bin/javac"
+
+ if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then
+ echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2
+ echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2
+ return 1
+ fi
+ fi
+ else
+ JAVACMD="$(
+ 'set' +e
+ 'unset' -f command 2>/dev/null
+ 'command' -v java
+ )" || :
+ JAVACCMD="$(
+ 'set' +e
+ 'unset' -f command 2>/dev/null
+ 'command' -v javac
+ )" || :
+
+ if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then
+ echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2
+ return 1
+ fi
+ fi
+}
+
+# hash string like Java String::hashCode
+hash_string() {
+ str="${1:-}" h=0
+ while [ -n "$str" ]; do
+ char="${str%"${str#?}"}"
+ h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296))
+ str="${str#?}"
+ done
+ printf %x\\n $h
+}
+
+verbose() { :; }
+[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; }
+
+die() {
+ printf %s\\n "$1" >&2
+ exit 1
+}
+
+trim() {
+ # MWRAPPER-139:
+ # Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds.
+ # Needed for removing poorly interpreted newline sequences when running in more
+ # exotic environments such as mingw bash on Windows.
+ printf "%s" "${1}" | tr -d '[:space:]'
+}
+
+scriptDir="$(dirname "$0")"
+scriptName="$(basename "$0")"
+
+# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties
+while IFS="=" read -r key value; do
+ case "${key-}" in
+ distributionUrl) distributionUrl=$(trim "${value-}") ;;
+ distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;;
+ esac
+done <"$scriptDir/.mvn/wrapper/maven-wrapper.properties"
+[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+
+case "${distributionUrl##*/}" in
+maven-mvnd-*bin.*)
+ MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/
+ case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in
+ *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;;
+ :Darwin*x86_64) distributionPlatform=darwin-amd64 ;;
+ :Darwin*arm64) distributionPlatform=darwin-aarch64 ;;
+ :Linux*x86_64*) distributionPlatform=linux-amd64 ;;
+ *)
+ echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2
+ distributionPlatform=linux-amd64
+ ;;
+ esac
+ distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip"
+ ;;
+maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;;
+*) MVN_CMD="mvn${scriptName#mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
+esac
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-,maven-mvnd--}/
+[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}"
+distributionUrlName="${distributionUrl##*/}"
+distributionUrlNameMain="${distributionUrlName%.*}"
+distributionUrlNameMain="${distributionUrlNameMain%-bin}"
+MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}"
+MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")"
+
+exec_maven() {
+ unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || :
+ exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD"
+}
+
+if [ -d "$MAVEN_HOME" ]; then
+ verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+ exec_maven "$@"
+fi
+
+case "${distributionUrl-}" in
+*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;;
+*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;;
+esac
+
+# prepare tmp dir
+if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then
+ clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; }
+ trap clean HUP INT TERM EXIT
+else
+ die "cannot create temp dir"
+fi
+
+mkdir -p -- "${MAVEN_HOME%/*}"
+
+# Download and Install Apache Maven
+verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+verbose "Downloading from: $distributionUrl"
+verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+# select .zip or .tar.gz
+if ! command -v unzip >/dev/null; then
+ distributionUrl="${distributionUrl%.zip}.tar.gz"
+ distributionUrlName="${distributionUrl##*/}"
+fi
+
+# verbose opt
+__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR=''
+[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v
+
+# normalize http auth
+case "${MVNW_PASSWORD:+has-password}" in
+'') MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;;
+esac
+
+if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then
+ verbose "Found wget ... using wget"
+ wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl"
+elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then
+ verbose "Found curl ... using curl"
+ curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl"
+elif set_java_home; then
+ verbose "Falling back to use Java to download"
+ javaSource="$TMP_DOWNLOAD_DIR/Downloader.java"
+ targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName"
+ cat >"$javaSource" <<-END
+ public class Downloader extends java.net.Authenticator
+ {
+ protected java.net.PasswordAuthentication getPasswordAuthentication()
+ {
+ return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() );
+ }
+ public static void main( String[] args ) throws Exception
+ {
+ setDefault( new Downloader() );
+ java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() );
+ }
+ }
+ END
+ # For Cygwin/MinGW, switch paths to Windows format before running javac and java
+ verbose " - Compiling Downloader.java ..."
+ "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java"
+ verbose " - Running Downloader.java ..."
+ "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")"
+fi
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+if [ -n "${distributionSha256Sum-}" ]; then
+ distributionSha256Result=false
+ if [ "$MVN_CMD" = mvnd.sh ]; then
+ echo "Checksum validation is not supported for maven-mvnd." >&2
+ echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+ exit 1
+ elif command -v sha256sum >/dev/null; then
+ if echo "$distributionSha256Sum $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c - >/dev/null 2>&1; then
+ distributionSha256Result=true
+ fi
+ elif command -v shasum >/dev/null; then
+ if echo "$distributionSha256Sum $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then
+ distributionSha256Result=true
+ fi
+ else
+ echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2
+ echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2
+ exit 1
+ fi
+ if [ $distributionSha256Result = false ]; then
+ echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2
+ echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2
+ exit 1
+ fi
+fi
+
+# unzip and move
+if command -v unzip >/dev/null; then
+ unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip"
+else
+ tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar"
+fi
+
+# Find the actual extracted directory name (handles snapshots where filename != directory name)
+actualDistributionDir=""
+
+# First try the expected directory name (for regular distributions)
+if [ -d "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" ]; then
+ if [ -f "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/bin/$MVN_CMD" ]; then
+ actualDistributionDir="$distributionUrlNameMain"
+ fi
+fi
+
+# If not found, search for any directory with the Maven executable (for snapshots)
+if [ -z "$actualDistributionDir" ]; then
+ # enable globbing to iterate over items
+ set +f
+ for dir in "$TMP_DOWNLOAD_DIR"/*; do
+ if [ -d "$dir" ]; then
+ if [ -f "$dir/bin/$MVN_CMD" ]; then
+ actualDistributionDir="$(basename "$dir")"
+ break
+ fi
+ fi
+ done
+ set -f
+fi
+
+if [ -z "$actualDistributionDir" ]; then
+ verbose "Contents of $TMP_DOWNLOAD_DIR:"
+ verbose "$(ls -la "$TMP_DOWNLOAD_DIR")"
+ die "Could not find Maven distribution directory in extracted archive"
+fi
+
+verbose "Found extracted Maven distribution directory: $actualDistributionDir"
+printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$actualDistributionDir/mvnw.url"
+mv -- "$TMP_DOWNLOAD_DIR/$actualDistributionDir" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+exec_maven "$@"
diff --git a/ironLibraryApp/mvnw.cmd b/ironLibraryApp/mvnw.cmd
new file mode 100644
index 00000000..92450f93
--- /dev/null
+++ b/ironLibraryApp/mvnw.cmd
@@ -0,0 +1,189 @@
+<# : batch portion
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements. See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership. The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License. You may obtain a copy of the License at
+@REM
+@REM http://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied. See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Apache Maven Wrapper startup batch script, version 3.3.4
+@REM
+@REM Optional ENV vars
+@REM MVNW_REPOURL - repo url base for downloading maven distribution
+@REM MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven
+@REM MVNW_VERBOSE - true: enable verbose log; others: silence the output
+@REM ----------------------------------------------------------------------------
+
+@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0)
+@SET __MVNW_CMD__=
+@SET __MVNW_ERROR__=
+@SET __MVNW_PSMODULEP_SAVE=%PSModulePath%
+@SET PSModulePath=
+@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @(
+ IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B)
+)
+@SET PSModulePath=%__MVNW_PSMODULEP_SAVE%
+@SET __MVNW_PSMODULEP_SAVE=
+@SET __MVNW_ARG0_NAME__=
+@SET MVNW_USERNAME=
+@SET MVNW_PASSWORD=
+@IF NOT "%__MVNW_CMD__%"=="" ("%__MVNW_CMD__%" %*)
+@echo Cannot start maven from wrapper >&2 && exit /b 1
+@GOTO :EOF
+: end batch / begin powershell #>
+
+$ErrorActionPreference = "Stop"
+if ($env:MVNW_VERBOSE -eq "true") {
+ $VerbosePreference = "Continue"
+}
+
+# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties
+$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl
+if (!$distributionUrl) {
+ Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties"
+}
+
+switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) {
+ "maven-mvnd-*" {
+ $USE_MVND = $true
+ $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip"
+ $MVN_CMD = "mvnd.cmd"
+ break
+ }
+ default {
+ $USE_MVND = $false
+ $MVN_CMD = $script -replace '^mvnw','mvn'
+ break
+ }
+}
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-,maven-mvnd--}/
+if ($env:MVNW_REPOURL) {
+ $MVNW_REPO_PATTERN = if ($USE_MVND -eq $False) { "/org/apache/maven/" } else { "/maven/mvnd/" }
+ $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace "^.*$MVNW_REPO_PATTERN",'')"
+}
+$distributionUrlName = $distributionUrl -replace '^.*/',''
+$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$',''
+
+$MAVEN_M2_PATH = "$HOME/.m2"
+if ($env:MAVEN_USER_HOME) {
+ $MAVEN_M2_PATH = "$env:MAVEN_USER_HOME"
+}
+
+if (-not (Test-Path -Path $MAVEN_M2_PATH)) {
+ New-Item -Path $MAVEN_M2_PATH -ItemType Directory | Out-Null
+}
+
+$MAVEN_WRAPPER_DISTS = $null
+if ((Get-Item $MAVEN_M2_PATH).Target[0] -eq $null) {
+ $MAVEN_WRAPPER_DISTS = "$MAVEN_M2_PATH/wrapper/dists"
+} else {
+ $MAVEN_WRAPPER_DISTS = (Get-Item $MAVEN_M2_PATH).Target[0] + "/wrapper/dists"
+}
+
+$MAVEN_HOME_PARENT = "$MAVEN_WRAPPER_DISTS/$distributionUrlNameMain"
+$MAVEN_HOME_NAME = ([System.Security.Cryptography.SHA256]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join ''
+$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME"
+
+if (Test-Path -Path "$MAVEN_HOME" -PathType Container) {
+ Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME"
+ Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
+ exit $?
+}
+
+if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) {
+ Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl"
+}
+
+# prepare tmp dir
+$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile
+$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir"
+$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null
+trap {
+ if ($TMP_DOWNLOAD_DIR.Exists) {
+ try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+ catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+ }
+}
+
+New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null
+
+# Download and Install Apache Maven
+Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..."
+Write-Verbose "Downloading from: $distributionUrl"
+Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName"
+
+$webclient = New-Object System.Net.WebClient
+if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) {
+ $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD)
+}
+[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null
+
+# If specified, validate the SHA-256 sum of the Maven distribution zip file
+$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum
+if ($distributionSha256Sum) {
+ if ($USE_MVND) {
+ Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties."
+ }
+ Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash
+ if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) {
+ Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property."
+ }
+}
+
+# unzip and move
+Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null
+
+# Find the actual extracted directory name (handles snapshots where filename != directory name)
+$actualDistributionDir = ""
+
+# First try the expected directory name (for regular distributions)
+$expectedPath = Join-Path "$TMP_DOWNLOAD_DIR" "$distributionUrlNameMain"
+$expectedMvnPath = Join-Path "$expectedPath" "bin/$MVN_CMD"
+if ((Test-Path -Path $expectedPath -PathType Container) -and (Test-Path -Path $expectedMvnPath -PathType Leaf)) {
+ $actualDistributionDir = $distributionUrlNameMain
+}
+
+# If not found, search for any directory with the Maven executable (for snapshots)
+if (!$actualDistributionDir) {
+ Get-ChildItem -Path "$TMP_DOWNLOAD_DIR" -Directory | ForEach-Object {
+ $testPath = Join-Path $_.FullName "bin/$MVN_CMD"
+ if (Test-Path -Path $testPath -PathType Leaf) {
+ $actualDistributionDir = $_.Name
+ }
+ }
+}
+
+if (!$actualDistributionDir) {
+ Write-Error "Could not find Maven distribution directory in extracted archive"
+}
+
+Write-Verbose "Found extracted Maven distribution directory: $actualDistributionDir"
+Rename-Item -Path "$TMP_DOWNLOAD_DIR/$actualDistributionDir" -NewName $MAVEN_HOME_NAME | Out-Null
+try {
+ Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null
+} catch {
+ if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) {
+ Write-Error "fail to move MAVEN_HOME"
+ }
+} finally {
+ try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null }
+ catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" }
+}
+
+Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD"
diff --git a/ironLibraryApp/pom.xml b/ironLibraryApp/pom.xml
new file mode 100644
index 00000000..9cf72114
--- /dev/null
+++ b/ironLibraryApp/pom.xml
@@ -0,0 +1,61 @@
+
+
+ 4.0.0
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 4.0.5
+
+
+ com.ironlibrary
+ ironLibraryApp
+ 0.0.1-SNAPSHOT
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 17
+
+
+
+ org.springframework.boot
+ spring-boot-starter
+
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+
+ com.mysql
+ mysql-connector-j
+ runtime
+
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
+
diff --git a/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/IronLibraryAppApplication.java b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/IronLibraryAppApplication.java
new file mode 100644
index 00000000..bf539d0a
--- /dev/null
+++ b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/IronLibraryAppApplication.java
@@ -0,0 +1,183 @@
+package com.ironlibrary.ironLibraryApp;
+
+import com.ironlibrary.ironLibraryApp.model.Author;
+import com.ironlibrary.ironLibraryApp.model.Book;
+import com.ironlibrary.ironLibraryApp.model.Issue;
+import com.ironlibrary.ironLibraryApp.service.LibraryService;
+
+import java.util.List;
+import java.util.Scanner;
+
+public class IronLibraryAppApplication {
+ public static void main(String[] args) {
+ LibraryService service = new LibraryService();
+ Scanner scanner = new Scanner(System.in);
+
+ while (true) {
+ printMenu();
+ try {
+ int choice = Integer.parseInt(scanner.nextLine().trim());
+
+ switch (choice) {
+ case 1:
+ addBook(service, scanner);
+ break;
+ case 2:
+ searchBookByTitle(service, scanner);
+ break;
+ case 3:
+ searchBooksByCategory(service, scanner);
+ break;
+ case 4:
+ searchBooksByAuthor(service, scanner);
+ break;
+ case 5:
+ getAllBooks(service, scanner);
+ break;
+ case 6:
+ issueBook(service, scanner);
+ break;
+ case 7:
+ listBooksByUsn(service, scanner);
+ break;
+ case 8:
+ System.out.println("Exiting the system. Goodbye!");
+ scanner.close();
+ return;
+ default:
+ System.out.println("Invalid choice. Please try again.");
+ }
+ } catch (NumberFormatException e) {
+ System.out.println("Please enter a valid number.");
+ } catch (Exception e) {
+ System.out.println("An unexpected error occurred: " + e.getMessage());
+ }
+ }
+ }
+
+ private static void printMenu() {
+ System.out.println("\n=== Library Management System ===");
+ System.out.println("1. Add a book");
+ System.out.println("2. Search book by title");
+ System.out.println("3. Search book by category");
+ System.out.println("4. Search book by Author");
+ System.out.println("5. List all books along with author");
+ System.out.println("6. Issue book to student");
+ System.out.println("7. List books by usn");
+ System.out.println("8. Exit");
+ System.out.print("Enter your choice: ");
+ }
+
+ private static void addBook(LibraryService service, Scanner sc) {
+ System.out.print("Enter isbn: ");
+ String isbn = sc.nextLine();
+ System.out.print("Enter title: ");
+ String title = sc.nextLine();
+ System.out.print("Enter category: ");
+ String category = sc.nextLine();
+ System.out.print("Enter Author name: ");
+ String authorName = sc.nextLine();
+ System.out.print("Enter Author mail: ");
+ String email = sc.nextLine();
+ System.out.print("Enter number of books: ");
+ int qty = Integer.parseInt(sc.nextLine());
+
+ service.addBookWithAuthor(isbn, title, category, qty, authorName, email);
+ }
+
+ private static void issueBook(LibraryService service, Scanner sc) {
+ System.out.print("Enter usn: ");
+ String usn = sc.nextLine();
+ System.out.print("Enter student name: ");
+ String studentName = sc.nextLine();
+ System.out.print("Enter isbn: ");
+ String isbn = sc.nextLine();
+ service.issueBook(usn, studentName, isbn);
+ }
+
+ private static void searchBookByTitle(LibraryService service, Scanner sc) {
+ System.out.print("Enter title of the book: ");
+ String title = sc.nextLine();
+ Book book = service.searchBookByTitle(title);
+ if (book != null) {
+ System.out.println("------------------------------------------------------------");
+ System.out.printf("%-15s %-30s %-15s %-5s%n", "ISBN", "Title", "Category", "Qty");
+ System.out.println("------------------------------------------------------------");
+ System.out.printf("%-15s %-30s %-15s %-5d%n",
+ book.getIsbn(), book.getTitle(), book.getCategory(), book.getQuantity());
+ System.out.println("------------------------------------------------------------");
+ }
+ }
+
+ private static void getAllBooks(LibraryService service, Scanner sc) {
+ System.out.println("Here is the list!");
+ List books = service.getAllBooks();
+
+ if (books.isEmpty()) {
+ System.out.println("No books found.");
+ return;
+ }
+
+ System.out.println("------------------------------------------------------------");
+ System.out.printf("%-15s %-30s %-15s %-5s%n", "ISBN", "Title", "Category", "Qty");
+ System.out.println("------------------------------------------------------------");
+ for (Book book : books) {
+ System.out.printf("%-15s %-30s %-15s %-5d%n",
+ book.getIsbn(), book.getTitle(), book.getCategory(), book.getQuantity());
+ }
+ System.out.println("------------------------------------------------------------");
+ }
+
+ private static void searchBooksByCategory(LibraryService service, Scanner sc) {
+ System.out.print("Enter the category to search: ");
+ String category = sc.nextLine();
+ List books = service.searchBooksByCategory(category);
+ printBookList(books);
+ }
+
+ private static void searchBooksByAuthor(LibraryService service, Scanner sc) {
+ System.out.print("Enter the author name to search: ");
+ String author = sc.nextLine();
+ List books = service.searchBooksByAuthor(author);
+ printBookList(books);
+ }
+
+ private static void listBooksByUsn(LibraryService service, Scanner sc) {
+ System.out.print("Enter student USN: ");
+ String usn = sc.nextLine();
+ List issues = service.getIssuesByStudent(usn);
+
+ if (issues.isEmpty()) {
+ return;
+ }
+
+ System.out.println("------------------------------------------------------------");
+ System.out.printf("%-5s %-15s %-30s %-12s %-12s%n",
+ "ID", "USN", "Book Title", "Issue Date", "Return Date");
+ System.out.println("------------------------------------------------------------");
+ for (Issue issue : issues) {
+ System.out.printf("%-5d %-15s %-30s %-12s %-12s%n",
+ issue.getIssueId(),
+ issue.getIssueStudent().getUsn(),
+ issue.getIssueBook().getTitle(),
+ issue.getIssueDate(),
+ issue.getReturnDate());
+ }
+ System.out.println("------------------------------------------------------------");
+ }
+
+ private static void printBookList(List books) {
+ if (books == null || books.isEmpty()) {
+ System.out.println("No books found.");
+ return;
+ }
+ System.out.println("------------------------------------------------------------");
+ System.out.printf("%-15s %-30s %-15s %-5s%n", "ISBN", "Title", "Category", "Qty");
+ System.out.println("------------------------------------------------------------");
+ for (Book book : books) {
+ System.out.printf("%-15s %-30s %-15s %-5d%n",
+ book.getIsbn(), book.getTitle(), book.getCategory(), book.getQuantity());
+ }
+ System.out.println("------------------------------------------------------------");
+ }
+}
\ No newline at end of file
diff --git a/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/dao/AuthorDAO.java b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/dao/AuthorDAO.java
new file mode 100644
index 00000000..74232fec
--- /dev/null
+++ b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/dao/AuthorDAO.java
@@ -0,0 +1,96 @@
+package com.ironlibrary.ironLibraryApp.dao;
+
+import com.ironlibrary.ironLibraryApp.model.Author;
+import com.ironlibrary.ironLibraryApp.model.Book;
+import com.ironlibrary.ironLibraryApp.util.DatabaseConnection;
+import java.sql.*;
+
+
+//Author DAO
+public class AuthorDAO {
+
+// Adding new author
+ public void addAuthor(Author author) {
+ String sql = "INSERT INTO author (name, email, book_isbn) VALUES (?, ?, ?)";
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS)) {
+
+ pstmt.setString(1, author.getName());
+ pstmt.setString(2, author.getEmail());
+ pstmt.setString(3, author.getAuthorBook().getIsbn());
+
+ pstmt.executeUpdate();
+
+ // Get generated author_id
+ try (ResultSet rs = pstmt.getGeneratedKeys()) {
+ if (rs.next()) {
+ author.setAuthorId(rs.getInt(1));
+ }
+ }
+ System.out.println("Author added successfully.");
+ } catch (SQLException e) {
+ System.err.println("Error adding author: " + e.getMessage());
+ }
+ }
+
+
+//
+ public Author findByBookIsbn(String isbn) {
+ String sql = "SELECT a.*, b.* FROM author a JOIN book b ON a.book_isbn = b.isbn WHERE a.book_isbn = ?";
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql)) {
+
+ pstmt.setString(1, isbn);
+ ResultSet rs = pstmt.executeQuery();
+
+ if (rs.next()) {
+ Book book = new Book(
+ rs.getString("b.isbn"),
+ rs.getString("b.title"),
+ rs.getString("b.category"),
+ rs.getInt("b.quantity")
+ );
+
+ Author author = new Author(
+ rs.getString("a.name"),
+ rs.getString("a.email"),
+ book
+ );
+ author.setAuthorId(rs.getInt("a.author_id"));
+ return author;
+ }
+ } catch (SQLException e) {
+ System.err.println("Error finding author by book: " + e.getMessage());
+ }
+ return null;
+ }
+
+ /**
+ * Finds author by name (for search by author).
+ */
+ public Author findByName(String name) {
+ String sql = "SELECT a.*, b.* FROM author a JOIN book b ON a.book_isbn = b.isbn WHERE a.name LIKE ?";
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql)) {
+
+ pstmt.setString(1, "%" + name + "%");
+ ResultSet rs = pstmt.executeQuery();
+
+ if (rs.next()) {
+ Book book = new Book(
+ rs.getString("b.isbn"),
+ rs.getString("b.title"),
+ rs.getString("b.category"),
+ rs.getInt("b.quantity")
+ );
+
+ Author author = new Author(rs.getString("a.name"), rs.getString("a.email"), book);
+ author.setAuthorId(rs.getInt("a.author_id"));
+ return author;
+ }
+ } catch (SQLException e) {
+ System.err.println("Error finding author by name: " + e.getMessage());
+ }
+ return null;
+ }
+}
\ No newline at end of file
diff --git a/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/dao/BookDAO.java b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/dao/BookDAO.java
new file mode 100644
index 00000000..48f8f47f
--- /dev/null
+++ b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/dao/BookDAO.java
@@ -0,0 +1,154 @@
+package com.ironlibrary.ironLibraryApp.dao;
+
+import com.ironlibrary.ironLibraryApp.model.Book;
+import com.ironlibrary.ironLibraryApp.util.DatabaseConnection;
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.List;
+
+public class BookDAO {
+
+ public void addBook(Book book) {
+ String sql = "INSERT INTO book (isbn, title, category, quantity) VALUES (?, ?, ?, ?)";
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql)) {
+
+ pstmt.setString(1, book.getIsbn());
+ pstmt.setString(2, book.getTitle());
+ pstmt.setString(3, book.getCategory());
+ pstmt.setInt(4, book.getQuantity());
+
+ pstmt.executeUpdate();
+ System.out.println("Book added successfully.");
+ } catch (SQLException e) {
+ System.err.println("Error adding book: " + e.getMessage());
+ }
+ }
+
+ public Book searchByTitle(String title) {
+ String sql = "SELECT * FROM book WHERE title LIKE ?";
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql)) {
+
+ pstmt.setString(1, "%" + title + "%");
+ ResultSet rs = pstmt.executeQuery();
+
+ if (rs.next()) {
+ return new Book(
+ rs.getString("isbn"),
+ rs.getString("title"),
+ rs.getString("category"),
+ rs.getInt("quantity")
+ );
+ }
+ } catch (SQLException e) {
+ System.err.println("Error searching book by title: " + e.getMessage());
+ }
+ return null;
+ }
+
+ public List searchByCategory(String category) {
+ List books = new ArrayList<>();
+ String sql = "SELECT * FROM book WHERE category LIKE ?";
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql)) {
+
+ pstmt.setString(1, "%" + category + "%");
+ ResultSet rs = pstmt.executeQuery();
+
+ while (rs.next()) {
+ books.add(new Book(
+ rs.getString("isbn"),
+ rs.getString("title"),
+ rs.getString("category"),
+ rs.getInt("quantity")
+ ));
+ }
+ } catch (SQLException e) {
+ System.err.println("Error searching books by category: " + e.getMessage());
+ }
+ return books;
+ }
+
+ public List searchByAuthor(String author) {
+ List books = new ArrayList<>();
+ String sql = "SELECT b.* FROM book b JOIN author a ON b.isbn = a.book_isbn WHERE a.name LIKE ?";
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql)) {
+
+ pstmt.setString(1, "%" + author + "%");
+ ResultSet rs = pstmt.executeQuery();
+
+ while (rs.next()) {
+ books.add(new Book(
+ rs.getString("isbn"),
+ rs.getString("title"),
+ rs.getString("category"),
+ rs.getInt("quantity")
+ ));
+ }
+ } catch (SQLException e) {
+ System.err.println("Error searching books by author: " + e.getMessage());
+ }
+ return books;
+ }
+
+ public Book findByIsbn(String isbn) {
+ String sql = "SELECT * FROM book WHERE isbn = ?";
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql)) {
+
+ pstmt.setString(1, isbn);
+ ResultSet rs = pstmt.executeQuery();
+
+ if (rs.next()) {
+ return new Book(
+ rs.getString("isbn"),
+ rs.getString("title"),
+ rs.getString("category"),
+ rs.getInt("quantity")
+ );
+ }
+ } catch (SQLException e) {
+ System.err.println("Error finding book by ISBN: " + e.getMessage());
+ }
+ return null;
+ }
+
+ public void updateBook(Book book) {
+ String sql = "UPDATE book SET title = ?, category = ?, quantity = ? WHERE isbn = ?";
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql)) {
+
+ pstmt.setString(1, book.getTitle());
+ pstmt.setString(2, book.getCategory());
+ pstmt.setInt(3, book.getQuantity());
+ pstmt.setString(4, book.getIsbn());
+
+ pstmt.executeUpdate();
+ } catch (SQLException e) {
+ System.err.println("Error updating book: " + e.getMessage());
+ }
+ }
+
+ public List getAllBooks() {
+ List books = new ArrayList<>();
+ String sql = "SELECT * FROM book";
+ try (Connection conn = DatabaseConnection.getConnection();
+ Statement stmt = conn.createStatement();
+ ResultSet rs = stmt.executeQuery(sql)) {
+
+ while (rs.next()) {
+ books.add(new Book(
+ rs.getString("isbn"),
+ rs.getString("title"),
+ rs.getString("category"),
+ rs.getInt("quantity")
+ ));
+ }
+ } catch (SQLException e) {
+ System.err.println("Error retrieving all books: " + e.getMessage());
+ }
+ return books;
+ }
+}
\ No newline at end of file
diff --git a/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/dao/IssueDAO.java b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/dao/IssueDAO.java
new file mode 100644
index 00000000..fdf4be5f
--- /dev/null
+++ b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/dao/IssueDAO.java
@@ -0,0 +1,80 @@
+package com.ironlibrary.ironLibraryApp.dao;
+
+import com.ironlibrary.ironLibraryApp.model.Issue;
+import com.ironlibrary.ironLibraryApp.model.Student;
+import com.ironlibrary.ironLibraryApp.model.Book;
+import com.ironlibrary.ironLibraryApp.util.DatabaseConnection;
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.List;
+
+
+//Issue DAO
+public class IssueDAO {
+
+
+// Adding issue to db
+ public void addIssue(Issue issue) {
+ String sql = "INSERT INTO issue (issue_date, return_date, student_usn, book_isbn) " +
+ "VALUES (?, ?, ?, ?)";
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS)) {
+
+ pstmt.setString(1, issue.getIssueDate());
+ pstmt.setString(2, issue.getReturnDate());
+ pstmt.setString(3, issue.getIssueStudent().getUsn());
+ pstmt.setString(4, issue.getIssueBook().getIsbn());
+
+ pstmt.executeUpdate();
+
+ try (ResultSet rs = pstmt.getGeneratedKeys()) {
+ if (rs.next()) {
+ issue.setIssueId(rs.getInt(1));
+ }
+ }
+ System.out.println("Issue record created.");
+ } catch (SQLException e) {
+ System.err.println("Error issuing book: " + e.getMessage());
+ }
+ }
+
+// Searching all data due to their 'usn data'
+ public List getIssuesByStudentUsn(String usn) {
+ List issues = new ArrayList<>();
+ String sql = "SELECT i.*, s.name as student_name, b.title as book_title " +
+ "FROM issue i " +
+ "JOIN student s ON i.student_usn = s.usn " +
+ "JOIN book b ON i.book_isbn = b.isbn " +
+ "WHERE i.student_usn = ?";
+
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql)) {
+
+ pstmt.setString(1, usn);
+ ResultSet rs = pstmt.executeQuery();
+
+ while (rs.next()) {
+ Student student = new Student(rs.getString("student_usn"), rs.getString("student_name"));
+ Book book = new Book(rs.getString("book_isbn"), rs.getString("book_title"), "", 0);
+
+ Issue issue = new Issue(
+ rs.getString("issue_date"),
+ rs.getString("return_date"),
+ student,
+ book
+ );
+ issue.setIssueId(rs.getInt("issue_id"));
+ issues.add(issue);
+ }
+ } catch (SQLException e) {
+ System.err.println("Error retrieving issues by student: " + e.getMessage());
+ }
+ return issues;
+ }
+
+ // Bonus: Books to be returned today (optional)
+ public List getBooksToReturnToday() {
+ // Implement similarly using CURRENT_DATE comparison if needed
+ return new ArrayList<>();
+ }
+}
\ No newline at end of file
diff --git a/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/dao/StudentDAO.java b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/dao/StudentDAO.java
new file mode 100644
index 00000000..b1fac80d
--- /dev/null
+++ b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/dao/StudentDAO.java
@@ -0,0 +1,46 @@
+package com.ironlibrary.ironLibraryApp.dao;
+
+import com.ironlibrary.ironLibraryApp.model.Student;
+import com.ironlibrary.ironLibraryApp.util.DatabaseConnection;
+import java.sql.*;
+
+
+// Student DAO
+public class StudentDAO {
+
+// Add Student or update data
+ public void addOrUpdateStudent(Student student) {
+ String sql = "INSERT INTO student (usn, name) VALUES (?, ?) " +
+ "ON DUPLICATE KEY UPDATE name = ?";
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql)) {
+
+ pstmt.setString(1, student.getUsn());
+ pstmt.setString(2, student.getName());
+ pstmt.setString(3, student.getName());
+
+ pstmt.executeUpdate();
+ } catch (SQLException e) {
+ System.err.println("Error adding/updating student: " + e.getMessage());
+ }
+ }
+
+
+// Finding student by their 'usn'
+ public Student findByUsn(String usn) {
+ String sql = "SELECT * FROM student WHERE usn = ?";
+ try (Connection conn = DatabaseConnection.getConnection();
+ PreparedStatement pstmt = conn.prepareStatement(sql)) {
+
+ pstmt.setString(1, usn);
+ ResultSet rs = pstmt.executeQuery();
+
+ if (rs.next()) {
+ return new Student(rs.getString("usn"), rs.getString("name"));
+ }
+ } catch (SQLException e) {
+ System.err.println("Error finding student: " + e.getMessage());
+ }
+ return null;
+ }
+}
\ No newline at end of file
diff --git a/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/model/Author.java b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/model/Author.java
new file mode 100644
index 00000000..d6db2205
--- /dev/null
+++ b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/model/Author.java
@@ -0,0 +1,25 @@
+package com.ironlibrary.ironLibraryApp.model;
+
+public class Author {
+
+ private int authorId;
+ private String name;
+ private String email;
+ private Book authorBook;
+
+ public Author(String name, String email, Book authorBook) {
+ this.name = name;
+ this.email = email;
+ this.authorBook = authorBook;
+ }
+
+ public int getAuthorId() { return authorId; }
+ public String getName() { return name; }
+ public String getEmail() { return email; }
+ public Book getAuthorBook() { return authorBook; }
+
+ public void setAuthorId(int authorId) { this.authorId = authorId; }
+ public void setName(String name) { this.name = name; }
+ public void setEmail(String email) { this.email = email; }
+ public void setAuthorBook(Book authorBook) { this.authorBook = authorBook; }
+}
\ No newline at end of file
diff --git a/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/model/Book.java b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/model/Book.java
new file mode 100644
index 00000000..f720210a
--- /dev/null
+++ b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/model/Book.java
@@ -0,0 +1,84 @@
+package com.ironlibrary.ironLibraryApp.model;
+
+public class Book {
+
+ private String isbn;
+ private String title;
+ private String category;
+ private int quantity;
+ private Author author;
+
+ public Book(String isbn, String title, String category, int quantity, Author author) {
+ if (isbn == null || isbn.trim().isEmpty())
+ throw new IllegalArgumentException("ERROR: ISBN cannot be null or empty.");
+ if (title == null || title.trim().isEmpty())
+ throw new IllegalArgumentException("ERROR: Book title cannot be null or empty.");
+ if (category == null || category.trim().isEmpty())
+ throw new IllegalArgumentException("ERROR: Book category cannot be null or empty.");
+ if (quantity < 0)
+ throw new IllegalArgumentException("ERROR: Quantity cannot be negative. Provided: " + quantity);
+
+ this.isbn = isbn;
+ this.title = title;
+ this.category = category;
+ this.quantity = quantity;
+ this.author = author;
+ }
+
+ // Constructor without Author (used by DAOs before author is linked)
+ public Book(String isbn, String title, String category, int quantity) {
+ this(isbn, title, category, quantity, null);
+ }
+
+ public String getIsbn() { return isbn; }
+ public String getTitle() { return title; }
+ public String getCategory() { return category; }
+ public int getQuantity() { return quantity; }
+ public Author getAuthor() { return author; }
+
+ public void setIsbn(String isbn) {
+ if (isbn == null || isbn.trim().isEmpty())
+ throw new IllegalArgumentException("ERROR: ISBN cannot be null or empty.");
+ this.isbn = isbn;
+ }
+
+ public void setTitle(String title) {
+ if (title == null || title.trim().isEmpty())
+ throw new IllegalArgumentException("ERROR: Book title cannot be null or empty.");
+ this.title = title;
+ }
+
+ public void setCategory(String category) {
+ if (category == null || category.trim().isEmpty())
+ throw new IllegalArgumentException("ERROR: Book category cannot be null or empty.");
+ this.category = category;
+ }
+
+ public void setQuantity(int quantity) {
+ if (quantity < 0)
+ throw new IllegalArgumentException("ERROR: Quantity cannot be negative. Provided: " + quantity);
+ this.quantity = quantity;
+ }
+
+ public void setAuthor(Author author) { this.author = author; }
+
+ public void addQuantity(int count) {
+ if (count < 0)
+ throw new IllegalArgumentException("ERROR: Cannot add negative quantity. Provided: " + count);
+ this.quantity += count;
+ }
+
+ public void reduceQuantity(int count) {
+ if (count < 0)
+ throw new IllegalArgumentException("ERROR: Cannot reduce by negative quantity. Provided: " + count);
+ if (count > this.quantity)
+ throw new IllegalArgumentException("ERROR: Insufficient copies. Available: " + this.quantity + ", Requested: " + count);
+ this.quantity -= count;
+ }
+
+ @Override
+ public String toString() {
+ return "Book{isbn='" + isbn + "', title='" + title + "', category='" + category +
+ "', quantity=" + quantity + ", author=" + (author != null ? author.getName() : "Unknown") + '}';
+ }
+}
\ No newline at end of file
diff --git a/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/model/Issue.java b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/model/Issue.java
new file mode 100644
index 00000000..c2830f7b
--- /dev/null
+++ b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/model/Issue.java
@@ -0,0 +1,37 @@
+package com.ironlibrary.ironLibraryApp.model;
+
+public class Issue {
+
+ private int issueId;
+ private String issueDate;
+ private String returnDate;
+ private Student issueStudent;
+ private Book issueBook;
+
+ public Issue(int issueId, String issueDate, String returnDate, Student issueStudent, Book issueBook) {
+ this.issueId = issueId;
+ this.issueDate = issueDate;
+ this.returnDate = returnDate;
+ this.issueStudent = issueStudent;
+ this.issueBook = issueBook;
+ }
+
+ public Issue(String issueDate, String returnDate, Student issueStudent, Book issueBook) {
+ this.issueDate = issueDate;
+ this.returnDate = returnDate;
+ this.issueStudent = issueStudent;
+ this.issueBook = issueBook;
+ }
+
+ public int getIssueId() { return issueId; }
+ public String getIssueDate() { return issueDate; }
+ public String getReturnDate() { return returnDate; }
+ public Student getIssueStudent() { return issueStudent; }
+ public Book getIssueBook() { return issueBook; }
+
+ public void setIssueId(int issueId) { this.issueId = issueId; }
+ public void setIssueDate(String issueDate) { this.issueDate = issueDate; }
+ public void setReturnDate(String returnDate) { this.returnDate = returnDate; }
+ public void setIssueStudent(Student issueStudent) { this.issueStudent = issueStudent; }
+ public void setIssueBook(Book issueBook) { this.issueBook = issueBook; }
+}
\ No newline at end of file
diff --git a/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/model/Student.java b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/model/Student.java
new file mode 100644
index 00000000..6d025a39
--- /dev/null
+++ b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/model/Student.java
@@ -0,0 +1,18 @@
+package com.ironlibrary.ironLibraryApp.model;
+
+public class Student {
+
+ private String usn;
+ private String name;
+
+ public Student(String usn, String name) {
+ this.usn = usn;
+ this.name = name;
+ }
+
+ public String getUsn() { return usn; }
+ public String getName() { return name; }
+
+ public void setUsn(String usn) { this.usn = usn; }
+ public void setName(String name) { this.name = name; }
+}
\ No newline at end of file
diff --git a/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/service/LibraryService.java b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/service/LibraryService.java
new file mode 100644
index 00000000..b4a9c448
--- /dev/null
+++ b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/service/LibraryService.java
@@ -0,0 +1,216 @@
+package com.ironlibrary.ironLibraryApp.service;
+
+import com.ironlibrary.ironLibraryApp.dao.*;
+import com.ironlibrary.ironLibraryApp.model.*;
+import java.time.LocalDate;
+import java.util.List;
+
+/**
+ * LibraryService: Core business logic layer for library operations.
+ * Handles book management, student records, author information, and book issue tracking.
+ *
+ * @author Library Management System
+ * @version 2.0
+ */
+public class LibraryService {
+
+ private final BookDAO bookDAO = new BookDAO();
+ private final AuthorDAO authorDAO = new AuthorDAO();
+ private final StudentDAO studentDAO = new StudentDAO();
+ private final IssueDAO issueDAO = new IssueDAO();
+
+ // ============================= BOOK MANAGEMENT =============================
+
+ /**
+ * Adds a new book to the library with associated author information.
+ * Book is created first (with null author), then Author is created and linked back.
+ *
+ * @param isbn Unique identifier for the book
+ * @param title Book title
+ * @param category Book category/genre
+ * @param quantity Available quantity (must be > 0)
+ * @param authorName Name of the author
+ * @param authorEmail Email of the author (must be valid format)
+ */
+ public void addBookWithAuthor(String isbn, String title, String category, int quantity,
+ String authorName, String authorEmail) {
+ if (isbn == null || isbn.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: ISBN cannot be null or empty. Please provide a valid ISBN.");
+ }
+ if (title == null || title.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: Book title cannot be null or empty. Please enter a valid book title.");
+ }
+ if (category == null || category.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: Category cannot be null or empty. Please specify a valid category.");
+ }
+ if (quantity <= 0) {
+ throw new IllegalArgumentException("ERROR: Book quantity must be greater than 0. Please enter a positive number.");
+ }
+ if (authorName == null || authorName.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: Author name cannot be null or empty. Please provide a valid author name.");
+ }
+ if (authorEmail == null || !isValidEmail(authorEmail)) {
+ throw new IllegalArgumentException("ERROR: Invalid email format. Please provide a valid email address (e.g., author@example.com).");
+ }
+
+ // Step 1: Create book with null author (Author object does not exist yet)
+ Book book = new Book(isbn, title, category, quantity, null);
+ bookDAO.addBook(book);
+
+ // Step 2: Create author with the book reference
+ Author author = new Author(authorName, authorEmail, book);
+ authorDAO.addAuthor(author);
+
+ // Step 3: Link author back to the book and persist
+ book.setAuthor(author);
+ bookDAO.updateBook(book);
+
+ System.out.println("SUCCESS: Book '" + title + "' with ISBN " + isbn + " and author '" + authorName + "' added successfully.");
+ }
+
+ /**
+ * Issues a book to a student for a 7-day loan period.
+ *
+ * @param usn Student Unique Serial Number
+ * @param studentName Name of the student
+ * @param isbn ISBN of the book to issue
+ */
+ public void issueBook(String usn, String studentName, String isbn) {
+ if (usn == null || usn.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: Student USN cannot be null or empty. Please provide a valid student ID.");
+ }
+ if (studentName == null || studentName.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: Student name cannot be null or empty. Please enter the student's name.");
+ }
+ if (isbn == null || isbn.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: ISBN cannot be null or empty. Please provide a valid book ISBN.");
+ }
+
+ Book book = bookDAO.findByIsbn(isbn);
+ if (book == null) {
+ throw new IllegalArgumentException("ERROR: Book with ISBN '" + isbn + "' not found in the library. Please verify the ISBN and try again.");
+ }
+ if (book.getQuantity() <= 0) {
+ throw new IllegalArgumentException("ERROR: Book '" + book.getTitle() + "' is currently unavailable. All copies are already issued.");
+ }
+
+ Student student = new Student(usn, studentName);
+ studentDAO.addOrUpdateStudent(student);
+
+ String issueDate = LocalDate.now().toString();
+ String returnDate = LocalDate.now().plusDays(7).toString();
+
+ Issue issue = new Issue(issueDate, returnDate, student, book);
+ issueDAO.addIssue(issue);
+
+ book.setQuantity(book.getQuantity() - 1);
+ bookDAO.updateBook(book);
+
+ System.out.println("SUCCESS: Book '" + book.getTitle() + "' issued to " + studentName + ". Return date: " + returnDate);
+ }
+
+ // ============================= BOOK SEARCH =============================
+
+ public Book searchBookByTitle(String title) {
+ if (title == null || title.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: Search title cannot be null or empty. Please enter a valid book title.");
+ }
+ Book book = bookDAO.searchByTitle(title);
+ if (book == null) {
+ System.out.println("INFO: Book with title '" + title + "' not found.");
+ } else {
+ System.out.println("SUCCESS: Book found - '" + title + "' (ISBN: " + book.getIsbn() + ")");
+ }
+ return book;
+ }
+
+ public List searchBooksByCategory(String category) {
+ if (category == null || category.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: Category cannot be null or empty. Please specify a valid category.");
+ }
+ List books = bookDAO.searchByCategory(category);
+ if (books.isEmpty()) {
+ System.out.println("INFO: No books found in category '" + category + "'.");
+ } else {
+ System.out.println("SUCCESS: Found " + books.size() + " book(s) in category '" + category + "'.");
+ }
+ return books;
+ }
+
+ public List searchBooksByAuthor(String author) {
+ if (author == null || author.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: Author name cannot be null or empty. Please enter a valid author name.");
+ }
+ List books = bookDAO.searchByAuthor(author);
+ if (books.isEmpty()) {
+ System.out.println("INFO: No books found for author '" + author + "'.");
+ } else {
+ System.out.println("SUCCESS: Found " + books.size() + " book(s) by author '" + author + "'.");
+ }
+ return books;
+ }
+
+ public List getAllBooks() {
+ List allBooks = bookDAO.getAllBooks();
+ System.out.println("INFO: Retrieved " + allBooks.size() + " total book(s) from library.");
+ return allBooks;
+ }
+
+ // ============================= AUTHOR SEARCH =============================
+
+ public Author findAuthorByIsbn(String isbn) {
+ if (isbn == null || isbn.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: ISBN cannot be null or empty. Please provide a valid ISBN.");
+ }
+ Author author = authorDAO.findByBookIsbn(isbn);
+ if (author == null) {
+ System.out.println("INFO: Author not found for ISBN '" + isbn + "'.");
+ } else {
+ System.out.println("SUCCESS: Author '" + author.getName() + "' found for ISBN '" + isbn + "'.");
+ }
+ return author;
+ }
+
+ public Author findAuthorByName(String name) {
+ if (name == null || name.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: Author name cannot be null or empty. Please enter a valid author name.");
+ }
+ Author author = authorDAO.findByName(name);
+ if (author == null) {
+ System.out.println("INFO: Author '" + name + "' not found.");
+ } else {
+ System.out.println("SUCCESS: Author '" + author.getName() + "' found with email: " + author.getEmail());
+ }
+ return author;
+ }
+
+ // ============================= ISSUE MANAGEMENT =============================
+
+ public List getIssuesByStudent(String usn) {
+ if (usn == null || usn.trim().isEmpty()) {
+ throw new IllegalArgumentException("ERROR: Student USN cannot be null or empty. Please provide a valid student ID.");
+ }
+ List issues = issueDAO.getIssuesByStudentUsn(usn);
+ if (issues.isEmpty()) {
+ System.out.println("INFO: No active book issues found for student '" + usn + "'.");
+ } else {
+ System.out.println("SUCCESS: Found " + issues.size() + " active issue(s) for student '" + usn + "'.");
+ }
+ return issues;
+ }
+
+ public Student findStudent(String usn) {
+ Student student = studentDAO.findByUsn(usn);
+ if (student == null) {
+ System.out.println("Student not found: " + usn);
+ }
+ return student;
+ }
+
+ // ============================= UTILITY =============================
+
+ private boolean isValidEmail(String email) {
+ String emailRegex = "^[A-Za-z0-9+_.-]+@(.+)$";
+ return email != null && email.matches(emailRegex) && email.contains(".");
+ }
+}
\ No newline at end of file
diff --git a/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/util/DatabaseConnection.java b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/util/DatabaseConnection.java
new file mode 100644
index 00000000..2ccc4773
--- /dev/null
+++ b/ironLibraryApp/src/main/java/com/ironlibrary/ironLibraryApp/util/DatabaseConnection.java
@@ -0,0 +1,17 @@
+package com.ironlibrary.ironLibraryApp.util;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+
+public class DatabaseConnection {
+ private static final String URL = "jdbc:mysql://localhost:3306/ironLibraryDB?useSSL=false&allowPublicKeyRetrieval=true";
+ private static final String USER = "root";
+ private static final String PASSWORD = "admin";
+
+ public static Connection getConnection() throws SQLException {
+ Connection conn = DriverManager.getConnection(URL, USER, PASSWORD);
+ conn.setAutoCommit(true);
+ return conn;
+ }
+}
\ No newline at end of file
diff --git a/ironLibraryApp/src/main/resources/application.properties b/ironLibraryApp/src/main/resources/application.properties
new file mode 100644
index 00000000..7e5d827f
--- /dev/null
+++ b/ironLibraryApp/src/main/resources/application.properties
@@ -0,0 +1 @@
+spring.application.name=ironLibraryApp
diff --git a/ironLibraryApp/src/test/java/com/ironlibrary/ironLibraryApp/IronLibraryAppApplicationTests.java b/ironLibraryApp/src/test/java/com/ironlibrary/ironLibraryApp/IronLibraryAppApplicationTests.java
new file mode 100644
index 00000000..af314373
--- /dev/null
+++ b/ironLibraryApp/src/test/java/com/ironlibrary/ironLibraryApp/IronLibraryAppApplicationTests.java
@@ -0,0 +1,686 @@
+package com.ironlibrary.ironLibraryApp;
+
+import com.ironlibrary.ironLibraryApp.model.*;
+import com.ironlibrary.ironLibraryApp.service.LibraryService;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.DisplayName;
+import org.springframework.boot.test.context.SpringBootTest;
+import java.util.List;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+/**
+ * Comprehensive Unit Test Suite for IronLibrary Application
+ *
+ * Test Coverage:
+ * ✓ Book Management (Add, Search, Get All)
+ * ✓ Author Management (Find by ISBN, Find by Name)
+ * ✓ Book Issue/Loan Management
+ * ✓ Exception Handling with detailed user feedback
+ * ✓ Edge cases and invalid inputs
+ * ✓ Boundary conditions
+ *
+ * @author QA Team
+ * @version 2.0 - Comprehensive Test Coverage
+ */
+@SpringBootTest
+@DisplayName("Iron Library Application - Complete Test Suite")
+class IronLibraryAppApplicationTests {
+
+ // LibraryService instance used for all tests
+ private LibraryService libraryService;
+
+ /**
+ * Setup method - initializes LibraryService before each test
+ * Ensures clean state for every test execution
+ */
+ @BeforeEach
+ void setUp() {
+ libraryService = new LibraryService();
+ }
+
+ // ============================= BOOT CONTEXT TESTS =============================
+
+ /**
+ * Test 1: Verify Spring context loads successfully
+ * Purpose: Basic sanity check that application starts correctly
+ */
+ @Test
+ @DisplayName("Test 1: Spring Boot Context Loading")
+ void contextLoads() {
+ // If this test passes, Spring context loaded successfully
+ assertNotNull(libraryService, "LibraryService should be initialized");
+ }
+
+ // ============================= ADD BOOK WITH AUTHOR TESTS =============================
+
+ /**
+ * Test 2: Successfully add a valid book with author information
+ * Purpose: Verify successful book and author addition with valid inputs
+ */
+ @Test
+ @DisplayName("Test 2: Add Valid Book with Author - Success Case")
+ void testAddBookWithAuthorSuccess() {
+ // Arrange: Prepare valid test data
+ String isbn = "978-0-13-110362-7";
+ String title = "The Clean Code";
+ String category = "Programming";
+ int quantity = 5;
+ String authorName = "Robert C. Martin";
+ String authorEmail = "robert@example.com";
+
+ // Act: Add book with author
+ assertDoesNotThrow(() -> libraryService.addBookWithAuthor(isbn, title, category, quantity, authorName, authorEmail),
+ "Adding valid book with author should not throw exception");
+
+ // Assert: Verify no exception was thrown
+ }
+
+ /**
+ * Test 3: Exception when ISBN is null
+ * Purpose: Verify detailed error message for missing ISBN
+ */
+ @Test
+ @DisplayName("Test 3: Add Book with Null ISBN - Exception")
+ void testAddBookWithNullIsbn() {
+ // Arrange & Act & Assert: Verify exception with detailed message
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.addBookWithAuthor(null, "Java Basics", "Programming", 3, "Author", "author@example.com"),
+ "Should throw exception for null ISBN");
+
+ assertTrue(exception.getMessage().contains("ISBN cannot be null"),
+ "Exception message should explain ISBN is required");
+ assertTrue(exception.getMessage().contains("ERROR:"),
+ "Exception message should start with ERROR prefix");
+ }
+
+ /**
+ * Test 4: Exception when ISBN is empty string
+ * Purpose: Verify validation rejects empty ISBN
+ */
+ @Test
+ @DisplayName("Test 4: Add Book with Empty ISBN - Exception")
+ void testAddBookWithEmptyIsbn() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.addBookWithAuthor("", "Java Basics", "Programming", 3, "Author", "author@example.com"));
+
+ assertTrue(exception.getMessage().contains("ISBN cannot be null or empty"),
+ "Error message should clarify ISBN is empty");
+ }
+
+ /**
+ * Test 5: Exception when title is null
+ * Purpose: Verify detailed error message for missing title
+ */
+ @Test
+ @DisplayName("Test 5: Add Book with Null Title - Exception")
+ void testAddBookWithNullTitle() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.addBookWithAuthor("978-123", null, "Programming", 3, "Author", "author@example.com"));
+
+ assertTrue(exception.getMessage().contains("title cannot be null"),
+ "Exception message should mention title");
+ }
+
+ /**
+ * Test 6: Exception when category is null
+ * Purpose: Verify category validation
+ */
+ @Test
+ @DisplayName("Test 6: Add Book with Null Category - Exception")
+ void testAddBookWithNullCategory() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.addBookWithAuthor("978-123", "Java Book", null, 3, "Author", "author@example.com"));
+
+ assertTrue(exception.getMessage().contains("Category cannot be null"),
+ "Exception should mention category requirement");
+ }
+
+ /**
+ * Test 7: Exception when quantity is zero
+ * Purpose: Verify quantity must be positive
+ */
+ @Test
+ @DisplayName("Test 7: Add Book with Zero Quantity - Exception")
+ void testAddBookWithZeroQuantity() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.addBookWithAuthor("978-123", "Java Book", "Programming", 0, "Author", "author@example.com"));
+
+ assertTrue(exception.getMessage().contains("must be greater than 0"),
+ "Exception should specify quantity must be positive");
+ }
+
+ /**
+ * Test 8: Exception when quantity is negative
+ * Purpose: Verify negative quantities are rejected
+ */
+ @Test
+ @DisplayName("Test 8: Add Book with Negative Quantity - Exception")
+ void testAddBookWithNegativeQuantity() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.addBookWithAuthor("978-123", "Java Book", "Programming", -5, "Author", "author@example.com"));
+
+ assertTrue(exception.getMessage().contains("must be greater than 0"),
+ "Negative quantities should be rejected");
+ }
+
+ /**
+ * Test 9: Exception when author name is null
+ * Purpose: Verify author name validation
+ */
+ @Test
+ @DisplayName("Test 9: Add Book with Null Author Name - Exception")
+ void testAddBookWithNullAuthorName() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.addBookWithAuthor("978-123", "Java Book", "Programming", 3, null, "author@example.com"));
+
+ assertTrue(exception.getMessage().contains("Author name cannot be null"),
+ "Should validate author name");
+ }
+
+ /**
+ * Test 10: Exception when email is invalid format
+ * Purpose: Verify email format validation with detailed feedback
+ */
+ @Test
+ @DisplayName("Test 10: Add Book with Invalid Email Format - Exception")
+ void testAddBookWithInvalidEmail() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.addBookWithAuthor("978-123", "Java Book", "Programming", 3, "Author", "invalid-email"));
+
+ assertTrue(exception.getMessage().contains("Invalid email format"),
+ "Should reject invalid email format");
+ assertTrue(exception.getMessage().contains("example.com"),
+ "Should provide email format example");
+ }
+
+ /**
+ * Test 11: Exception when email is null
+ * Purpose: Verify null email rejection
+ */
+ @Test
+ @DisplayName("Test 11: Add Book with Null Email - Exception")
+ void testAddBookWithNullEmail() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.addBookWithAuthor("978-123", "Java Book", "Programming", 3, "Author", null));
+
+ assertTrue(exception.getMessage().contains("Invalid email format"),
+ "Null email should be caught by email validation");
+ }
+
+ // ============================= ISSUE BOOK TESTS =============================
+
+ /**
+ * Test 12: Successfully issue a book to a student
+ * Purpose: Verify book issuance with valid inputs
+ */
+ @Test
+ @DisplayName("Test 12: Issue Book with Valid Inputs - Success")
+ void testIssueBookSuccess() {
+ // First add a book to the library
+ libraryService.addBookWithAuthor("978-456", "Spring Guide", "Web Development", 3, "Mark", "mark@example.com");
+
+ // Act: Issue the book to a student
+ assertDoesNotThrow(() -> libraryService.issueBook("USN001", "John Student", "978-456"),
+ "Issuing valid book to student should succeed");
+ }
+
+ /**
+ * Test 13: Exception when student USN is null
+ * Purpose: Verify USN validation with clear error message
+ */
+ @Test
+ @DisplayName("Test 13: Issue Book with Null Student USN - Exception")
+ void testIssueBookNullUsn() {
+ // Add book first
+ libraryService.addBookWithAuthor("978-456", "Spring Guide", "Web Development", 3, "Mark", "mark@example.com");
+
+ // Act & Assert: Verify exception
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.issueBook(null, "John", "978-456"));
+
+ assertTrue(exception.getMessage().contains("Student USN cannot be null"),
+ "Error message should specify USN requirement");
+ }
+
+ /**
+ * Test 14: Exception when student name is empty
+ * Purpose: Verify student name validation
+ */
+ @Test
+ @DisplayName("Test 14: Issue Book with Empty Student Name - Exception")
+ void testIssueBookEmptyStudentName() {
+ libraryService.addBookWithAuthor("978-456", "Spring Guide", "Web Development", 3, "Mark", "mark@example.com");
+
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.issueBook("USN001", " ", "978-456"));
+
+ assertTrue(exception.getMessage().contains("Student name cannot be null"),
+ "Should reject empty/whitespace-only names");
+ }
+
+ /**
+ * Test 15: Exception when ISBN is null during issue
+ * Purpose: Verify ISBN validation for book lookup
+ */
+ @Test
+ @DisplayName("Test 15: Issue Book with Null ISBN - Exception")
+ void testIssueBookNullIsbn() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.issueBook("USN001", "John", null));
+
+ assertTrue(exception.getMessage().contains("ISBN cannot be null"),
+ "Should validate ISBN for book lookup");
+ }
+
+ /**
+ * Test 16: Exception when book is not found
+ * Purpose: Verify helpful error message when book ISBN doesn't exist
+ */
+ @Test
+ @DisplayName("Test 16: Issue Non-Existent Book - Exception")
+ void testIssueNonExistentBook() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.issueBook("USN001", "John", "999-INVALID"));
+
+ assertTrue(exception.getMessage().contains("not found in the library"),
+ "Should indicate book not in library");
+ assertTrue(exception.getMessage().contains("verify the ISBN"),
+ "Should suggest verification step");
+ }
+
+ /**
+ * Test 17: Exception when book quantity is zero (unavailable)
+ * Purpose: Verify helpful message when no copies available
+ */
+ @Test
+ @DisplayName("Test 17: Issue Unavailable Book (Zero Quantity) - Exception")
+ void testIssueUnavailableBook() {
+ // Add book with zero quantity
+ libraryService.addBookWithAuthor("978-789", "Advanced Java", "Programming", 0, "Josh", "josh@example.com");
+
+ // Act & Assert: Verify exception with helpful message
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.issueBook("USN001", "John", "978-789"));
+
+ assertTrue(exception.getMessage().contains("currently unavailable"),
+ "Error message should indicate book unavailable");
+ assertTrue(exception.getMessage().contains("All copies are already issued"),
+ "Should explain why unavailable");
+ }
+
+ // ============================= SEARCH BOOK BY TITLE TESTS =============================
+
+ /**
+ * Test 18: Successfully search book by title
+ * Purpose: Verify book search returns correct results
+ */
+ @Test
+ @DisplayName("Test 18: Search Book by Valid Title - Success")
+ void testSearchBookByTitleSuccess() {
+ // Add a book
+ libraryService.addBookWithAuthor("978-111", "Database Design", "Databases", 2, "Philip", "philip@example.com");
+
+ // Act: Search for the book
+ Book foundBook = libraryService.searchBookByTitle("Database Design");
+
+ // Assert: Verify book was found
+ assertNotNull(foundBook, "Book should be found by title");
+ assertEquals("Database Design", foundBook.getTitle(), "Title should match");
+ }
+
+ /**
+ * Test 19: Search with null title should throw exception
+ * Purpose: Verify null title rejection with clear error
+ */
+ @Test
+ @DisplayName("Test 19: Search Book with Null Title - Exception")
+ void testSearchBookNullTitle() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.searchBookByTitle(null));
+
+ assertTrue(exception.getMessage().contains("cannot be null or empty"),
+ "Should reject null search titles");
+ }
+
+ /**
+ * Test 20: Search for non-existent book
+ * Purpose: Verify graceful handling when book not found
+ */
+ @Test
+ @DisplayName("Test 20: Search for Non-Existent Book Title")
+ void testSearchNonExistentBookTitle() {
+ // Act: Search for non-existent book
+ Book foundBook = libraryService.searchBookByTitle("Non Existent Book 12345");
+
+ // Assert: Verify null returned (without exception)
+ assertNull(foundBook, "Should return null for non-existent book, not throw exception");
+ }
+
+ // ============================= SEARCH BOOKS BY CATEGORY TESTS =============================
+
+ /**
+ * Test 21: Successfully search books by category
+ * Purpose: Verify category search functionality
+ */
+ @Test
+ @DisplayName("Test 21: Search Books by Valid Category - Success")
+ void testSearchBooksByCategorySuccess() {
+ // Add books in specific category
+ libraryService.addBookWithAuthor("978-222", "OOP Principles", "Programming", 2, "Steven", "steven@example.com");
+ libraryService.addBookWithAuthor("978-333", "Design Patterns", "Programming", 1, "Steven", "steven@example.com");
+
+ // Act: Search for books in category
+ List books = libraryService.searchBooksByCategory("Programming");
+
+ // Assert: Verify results
+ assertNotNull(books, "Search results should not be null");
+ assertFalse(books.isEmpty(), "Should find books in category");
+ }
+
+ /**
+ * Test 22: Category search with null input
+ * Purpose: Verify null category rejection
+ */
+ @Test
+ @DisplayName("Test 22: Search Books with Null Category - Exception")
+ void testSearchBooksCategoryNull() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.searchBooksByCategory(null));
+
+ assertTrue(exception.getMessage().contains("Category cannot be null"),
+ "Should require valid category");
+ }
+
+ /**
+ * Test 23: Search for non-existent category
+ * Purpose: Verify empty list returned for unknown categories
+ */
+ @Test
+ @DisplayName("Test 23: Search Books by Non-Existent Category")
+ void testSearchNonExistentCategory() {
+ // Act: Search for non-existent category
+ List books = libraryService.searchBooksByCategory("Science Fiction 999");
+
+ // Assert: Verify empty list returned
+ assertNotNull(books, "Should return empty list, not null");
+ assertTrue(books.isEmpty(), "Should return empty list for non-existent category");
+ }
+
+ // ============================= SEARCH BOOKS BY AUTHOR TESTS =============================
+
+ /**
+ * Test 24: Successfully search books by author
+ * Purpose: Verify author search functionality
+ */
+ @Test
+ @DisplayName("Test 24: Search Books by Valid Author - Success")
+ void testSearchBooksByAuthorSuccess() {
+ // Add books by same author
+ libraryService.addBookWithAuthor("978-444", "Book One", "Fiction", 1, "Jane Doe", "jane@example.com");
+ libraryService.addBookWithAuthor("978-555", "Book Two", "Mystery", 2, "Jane Doe", "jane@example.com");
+
+ // Act: Search for books by author
+ List books = libraryService.searchBooksByAuthor("Jane Doe");
+
+ // Assert: Verify results
+ assertNotNull(books, "Search results should not be null");
+ assertFalse(books.isEmpty(), "Should find books by author");
+ }
+
+ /**
+ * Test 25: Author search with null input
+ * Purpose: Verify null author name rejection
+ */
+ @Test
+ @DisplayName("Test 25: Search Books with Null Author - Exception")
+ void testSearchBooksAuthorNull() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.searchBooksByAuthor(null));
+
+ assertTrue(exception.getMessage().contains("Author name cannot be null"),
+ "Should require valid author name");
+ }
+
+ /**
+ * Test 26: Search for non-existent author
+ * Purpose: Verify empty list returned for unknown authors
+ */
+ @Test
+ @DisplayName("Test 26: Search Books by Non-Existent Author")
+ void testSearchNonExistentAuthor() {
+ // Act: Search for non-existent author
+ List books = libraryService.searchBooksByAuthor("Unknown Author XYZ");
+
+ // Assert: Verify empty list returned
+ assertTrue(books.isEmpty(), "Should return empty list for unknown author");
+ }
+
+ // ============================= GET ALL BOOKS TESTS =============================
+
+ /**
+ * Test 27: Get all books from library
+ * Purpose: Verify retrieving complete book inventory
+ */
+ @Test
+ @DisplayName("Test 27: Get All Books - Returns List")
+ void testGetAllBooks() {
+ // Add multiple books
+ libraryService.addBookWithAuthor("978-666", "Science Today", "Science", 3, "Dr. Smith", "smith@example.com");
+ libraryService.addBookWithAuthor("978-777", "History Lessons", "History", 2, "Prof. Jones", "jones@example.com");
+
+ // Act: Get all books
+ List allBooks = libraryService.getAllBooks();
+
+ // Assert: Verify list is not null and contains books
+ assertNotNull(allBooks, "Book list should not be null");
+ assertTrue(allBooks.size() >= 2, "Should contain at least 2 books");
+ }
+
+ // ============================= FIND AUTHOR BY ISBN TESTS =============================
+
+ /**
+ * Test 28: Successfully find author by book ISBN
+ * Purpose: Verify author lookup by ISBN works correctly
+ */
+ @Test
+ @DisplayName("Test 28: Find Author by Valid ISBN - Success")
+ void testFindAuthorByIsbnSuccess() {
+ // Add book with author
+ libraryService.addBookWithAuthor("978-888", "Web Development", "Technology", 1, "Ryan Cooper", "ryan@example.com");
+
+ // Act: Find author by ISBN
+ Author foundAuthor = libraryService.findAuthorByIsbn("978-888");
+
+ // Assert: Verify author found
+ assertNotNull(foundAuthor, "Author should be found by ISBN");
+ assertEquals("Ryan Cooper", foundAuthor.getName(), "Author name should match");
+ }
+
+ /**
+ * Test 29: Find author with null ISBN
+ * Purpose: Verify null ISBN rejection
+ */
+ @Test
+ @DisplayName("Test 29: Find Author with Null ISBN - Exception")
+ void testFindAuthorByNullIsbn() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.findAuthorByIsbn(null));
+
+ assertTrue(exception.getMessage().contains("ISBN cannot be null"),
+ "Should require valid ISBN");
+ }
+
+ /**
+ * Test 30: Find author for non-existent ISBN
+ * Purpose: Verify graceful handling when author not found
+ */
+ @Test
+ @DisplayName("Test 30: Find Author by Non-Existent ISBN")
+ void testFindAuthorNonExistentIsbn() {
+ // Act: Search for author by non-existent ISBN
+ Author foundAuthor = libraryService.findAuthorByIsbn("999-NOBOOK");
+
+ // Assert: Verify null returned
+ assertNull(foundAuthor, "Should return null for non-existent ISBN");
+ }
+
+ // ============================= FIND AUTHOR BY NAME TESTS =============================
+
+ /**
+ * Test 31: Successfully find author by name
+ * Purpose: Verify author name search functionality
+ */
+ @Test
+ @DisplayName("Test 31: Find Author by Valid Name - Success")
+ void testFindAuthorByNameSuccess() {
+ // Add book to create author record
+ libraryService.addBookWithAuthor("978-999", "Machine Learning", "AI", 2, "Dr. Anne Smith", "anne@example.com");
+
+ // Act: Find author by name
+ Author foundAuthor = libraryService.findAuthorByName("Dr. Anne Smith");
+
+ // Assert: Verify author found
+ assertNotNull(foundAuthor, "Author should be found by name");
+ assertEquals("Dr. Anne Smith", foundAuthor.getName(), "Author name should match");
+ }
+
+ /**
+ * Test 32: Find author with null name
+ * Purpose: Verify null name rejection
+ */
+ @Test
+ @DisplayName("Test 32: Find Author with Null Name - Exception")
+ void testFindAuthorByNullName() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.findAuthorByName(null));
+
+ assertTrue(exception.getMessage().contains("Author name cannot be null"),
+ "Should require valid author name");
+ }
+
+ /**
+ * Test 33: Find author with non-existent name
+ * Purpose: Verify graceful handling when name not found
+ */
+ @Test
+ @DisplayName("Test 33: Find Author by Non-Existent Name")
+ void testFindAuthorNonExistentName() {
+ // Act: Search for non-existent author
+ Author foundAuthor = libraryService.findAuthorByName("Author Not In System");
+
+ // Assert: Verify null returned
+ assertNull(foundAuthor, "Should return null for non-existent author");
+ }
+
+ // ============================= GET ISSUES BY STUDENT TESTS =============================
+
+ /**
+ * Test 34: Successfully get student's book issues
+ * Purpose: Verify retrieval of student's borrowed books
+ */
+ @Test
+ @DisplayName("Test 34: Get Issues by Valid Student USN - Success")
+ void testGetIssuesByStudentSuccess() {
+ // Setup: Add book and issue it to student
+ libraryService.addBookWithAuthor("978-1000", "Test Book", "Testing", 5, "Test Author", "test@example.com");
+ libraryService.issueBook("STU001", "Alice Brown", "978-1000");
+
+ // Act: Get issues for student
+ List studentIssues = libraryService.getIssuesByStudent("STU001");
+
+ // Assert: Verify issues found
+ assertNotNull(studentIssues, "Issues list should not be null");
+ }
+
+ /**
+ * Test 35: Get issues with null student USN
+ * Purpose: Verify null USN rejection
+ */
+ @Test
+ @DisplayName("Test 35: Get Issues with Null Student USN - Exception")
+ void testGetIssuesByNullUsn() {
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.getIssuesByStudent(null));
+
+ assertTrue(exception.getMessage().contains("Student USN cannot be null"),
+ "Should require valid student USN");
+ }
+
+ /**
+ * Test 36: Get issues for student with no borrowed books
+ * Purpose: Verify empty list returned for students with no issues
+ */
+ @Test
+ @DisplayName("Test 36: Get Issues for Student with No Borrowed Books")
+ void testGetIssuesNoBooks() {
+ // Act: Get issues for student who hasn't borrowed anything
+ List studentIssues = libraryService.getIssuesByStudent("STU999");
+
+ // Assert: Verify empty list
+ assertNotNull(studentIssues, "Should return empty list, not null");
+ assertTrue(studentIssues.isEmpty(), "Should return empty list when no issues");
+ }
+
+ // ============================= BOUNDARY AND EDGE CASE TESTS =============================
+
+ /**
+ * Test 37: Add book with maximum quantity
+ * Purpose: Verify system handles large quantities appropriately
+ */
+ @Test
+ @DisplayName("Test 37: Add Book with Large Quantity - Boundary Test")
+ void testAddBookLargeQuantity() {
+ // Act & Assert: Should handle large quantities
+ assertDoesNotThrow(() ->
+ libraryService.addBookWithAuthor("978-2000", "Popular Book", "General", 10000, "Popular Author", "pop@example.com"),
+ "Should handle large quantities without issue");
+ }
+
+ /**
+ * Test 38: Add book with quantity of 1
+ * Purpose: Verify minimum valid quantity accepted
+ */
+ @Test
+ @DisplayName("Test 38: Add Book with Minimum Quantity (1) - Boundary Test")
+ void testAddBookMinimumQuantity() {
+ // Act & Assert: Should accept quantity of 1
+ assertDoesNotThrow(() ->
+ libraryService.addBookWithAuthor("978-2001", "Rare Book", "Collectible", 1, "Rare Author", "rare@example.com"),
+ "Should accept quantity of 1");
+ }
+
+ /**
+ * Test 39: Search with whitespace-only strings
+ * Purpose: Verify whitespace-only inputs are rejected
+ */
+ @Test
+ @DisplayName("Test 39: Search with Whitespace-Only Input - Exception")
+ void testSearchWhitespaceOnly() {
+ // Act & Assert: Whitespace-only should be treated as empty
+ IllegalArgumentException exception = assertThrows(IllegalArgumentException.class, () ->
+ libraryService.searchBookByTitle(" "));
+
+ assertTrue(exception.getMessage().contains("cannot be null or empty"),
+ "Whitespace-only input should be rejected");
+ }
+
+ /**
+ * Test 40: Email validation with various formats
+ * Purpose: Verify email validation accepts valid formats
+ */
+ @Test
+ @DisplayName("Test 40: Email Validation - Valid Format Acceptance")
+ void testValidEmailFormats() {
+ // Test various valid email formats
+ assertDoesNotThrow(() ->
+ libraryService.addBookWithAuthor("978-3001", "Email Test 1", "Tech", 1, "Author1", "user@domain.com"));
+
+ assertDoesNotThrow(() ->
+ libraryService.addBookWithAuthor("978-3002", "Email Test 2", "Tech", 1, "Author2", "user.name@domain.co.uk"));
+
+ assertDoesNotThrow(() ->
+ libraryService.addBookWithAuthor("978-3003", "Email Test 3", "Tech", 1, "Author3", "user+tag@domain.org"));
+ }
+}