diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 00000000..3b41682a
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+/mvnw text eol=lf
+*.cmd text eol=crlf
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..0645d72b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,39 @@
+IronLibrary/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
+.idea/modules.xml
+.idea/misc.xml
+
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+application.properties
+
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 00000000..26d33521
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml
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/misc.xml b/.idea/misc.xml
new file mode 100644
index 00000000..8a0c2be0
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,15 @@
+
+
+
+
+
+
+
+
+
+
\ 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/.mvn/wrapper/maven-wrapper.properties b/.mvn/wrapper/maven-wrapper.properties
new file mode 100644
index 00000000..d58dfb70
--- /dev/null
+++ b/.mvn/wrapper/maven-wrapper.properties
@@ -0,0 +1,19 @@
+# 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.
+wrapperVersion=3.3.2
+distributionType=only-script
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.9/apache-maven-3.9.9-bin.zip
diff --git a/HELP.md b/HELP.md
new file mode 100644
index 00000000..b7d93cfb
--- /dev/null
+++ b/HELP.md
@@ -0,0 +1,27 @@
+# Getting Started
+
+### Reference Documentation
+For further reference, please consider the following sections:
+
+* [Official Apache Maven documentation](https://maven.apache.org/guides/index.html)
+* [Spring Boot Maven Plugin Reference Guide](https://docs.spring.io/spring-boot/3.4.4/maven-plugin)
+* [Create an OCI image](https://docs.spring.io/spring-boot/3.4.4/maven-plugin/build-image.html)
+* [Spring Data JPA](https://docs.spring.io/spring-boot/3.4.4/reference/data/sql.html#data.sql.jpa-and-spring-data)
+* [Spring Web](https://docs.spring.io/spring-boot/3.4.4/reference/web/servlet.html)
+
+### Guides
+The following guides illustrate how to use some features concretely:
+
+* [Accessing Data with JPA](https://spring.io/guides/gs/accessing-data-jpa/)
+* [Building a RESTful Web Service](https://spring.io/guides/gs/rest-service/)
+* [Serving Web Content with Spring MVC](https://spring.io/guides/gs/serving-web-content/)
+* [Building REST services with Spring](https://spring.io/guides/tutorials/rest/)
+* [Accessing data with MySQL](https://spring.io/guides/gs/accessing-data-mysql/)
+
+### Maven Parent overrides
+
+Due to Maven's design, elements are inherited from the parent POM to the project POM.
+While most of the inheritance is fine, it also inherits unwanted elements like `` and `` from the parent.
+To prevent this, the project POM contains empty overrides for these elements.
+If you manually switch to a different parent and actually want the inheritance, you need to remove those overrides.
+
diff --git a/UML.png b/UML.png
new file mode 100644
index 00000000..e8853dbd
Binary files /dev/null and b/UML.png differ
diff --git a/mvnw b/mvnw
new file mode 100644
index 00000000..19529ddf
--- /dev/null
+++ b/mvnw
@@ -0,0 +1,259 @@
+#!/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 3.3.2
+#
+# 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:]'
+}
+
+# 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 "${value-}") ;;
+ esac
+done <"${0%/*}/.mvn/wrapper/maven-wrapper.properties"
+[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in ${0%/*}/.mvn/wrapper/maven-wrapper.properties"
+
+case "${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${0##*/mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;;
+esac
+
+# apply MVNW_REPOURL and calculate MAVEN_HOME
+# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-,maven-mvnd--}/
+[ -z "${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
+printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/mvnw.url"
+mv -- "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME"
+
+clean || :
+exec_maven "$@"
diff --git a/mvnw.cmd b/mvnw.cmd
new file mode 100644
index 00000000..249bdf38
--- /dev/null
+++ b/mvnw.cmd
@@ -0,0 +1,149 @@
+<# : 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 3.3.2
+@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) { "/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_HOME_PARENT = "$HOME/.m2/wrapper/dists/$distributionUrlNameMain"
+if ($env:MAVEN_USER_HOME) {
+ $MAVEN_HOME_PARENT = "$env:MAVEN_USER_HOME/wrapper/dists/$distributionUrlNameMain"
+}
+$MAVEN_HOME_NAME = ([System.Security.Cryptography.MD5]::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
+Rename-Item -Path "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" -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/pom.xml b/pom.xml
new file mode 100644
index 00000000..f558215b
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,63 @@
+
+
+ 4.0.0
+
+ org.springframework.boot
+ spring-boot-starter-parent
+ 3.4.4
+
+
+ IronLibrary
+ demo
+ 0.0.1-SNAPSHOT
+ IronLibrary
+ Demo project for Spring Boot
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 21
+
+
+
+ org.springframework.boot
+ spring-boot-starter-data-jpa
+
+
+ org.springframework.boot
+ spring-boot-starter-web
+
+
+
+ com.mysql
+ mysql-connector-j
+ runtime
+
+
+ org.springframework.boot
+ spring-boot-starter-test
+ test
+
+
+
+
+
+
+ org.springframework.boot
+ spring-boot-maven-plugin
+
+
+
+
+
diff --git a/src/main/java/IronLibrary/demo/IronLibraryApplication.java b/src/main/java/IronLibrary/demo/IronLibraryApplication.java
new file mode 100644
index 00000000..f44d3760
--- /dev/null
+++ b/src/main/java/IronLibrary/demo/IronLibraryApplication.java
@@ -0,0 +1,13 @@
+package IronLibrary.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class IronLibraryApplication {
+
+ public static void main(String[] args) {
+ SpringApplication.run(IronLibraryApplication.class, args);
+ }
+
+}
diff --git a/src/main/java/IronLibrary/demo/ScannerMenu.java b/src/main/java/IronLibrary/demo/ScannerMenu.java
new file mode 100644
index 00000000..0f8fbf33
--- /dev/null
+++ b/src/main/java/IronLibrary/demo/ScannerMenu.java
@@ -0,0 +1,221 @@
+package IronLibrary.demo;
+import IronLibrary.demo.models.Author;
+import IronLibrary.demo.models.Book;
+import IronLibrary.demo.models.Issue;
+import IronLibrary.demo.models.Student;
+import IronLibrary.demo.repositories.AuthorRepository;
+import IronLibrary.demo.repositories.BookRepository;
+import IronLibrary.demo.repositories.IssueRepository;
+import IronLibrary.demo.repositories.StudentRepository;
+import IronLibrary.demo.services.LibraryService1;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.Scanner;
+
+@SpringBootApplication
+public class ScannerMenu implements CommandLineRunner {
+
+ @Autowired
+ BookRepository bookRepository;
+ @Autowired
+ AuthorRepository authorRepository;
+ @Autowired
+ LibraryService1 libraryService1;
+ @Autowired
+ IssueRepository issueRepository;
+ @Autowired
+ StudentRepository studentRepository;
+
+ //PALETA DE COLORES TERMINAL
+ public static final String ANSI_RESET = "\u001B[0m";
+ public static final String ANSI_BLACK = "\u001B[30m";
+ public static final String ANSI_RED = "\u001B[31m";
+ public static final String ANSI_GREEN = "\u001B[32m";
+ public static final String ANSI_YELLOW = "\u001B[33m";
+ public static final String ANSI_BLUE = "\u001B[34m";
+ public static final String ANSI_PURPLE = "\u001B[35m";
+ public static final String ANSI_CYAN = "\u001B[36m";
+ public static final String ANSI_WHITE = "\u001B[37m";
+ static final String ANSI_BLACK_BACKGROUND = "\u001B[40m";
+ public static final String ANSI_RED_BACKGROUND = "\u001B[41m";
+ public static final String ANSI_GREEN_BACKGROUND = "\u001B[42m";
+ public static final String ANSI_YELLOW_BACKGROUND = "\u001B[43m";
+ public static final String ANSI_BLUE_BACKGROUND = "\u001B[44m";
+ public static final String ANSI_PURPLE_BACKGROUND = "\u001B[45m";
+ public static final String ANSI_CYAN_BACKGROUND = "\u001B[46m";
+ public static final String ANSI_WHITE_BACKGROUND = "\u001B[47m";
+
+ public static void main(String[] args) {
+ SpringApplication.run(ScannerMenu.class, args);
+ }
+
+ @Override
+ public void run(String... args) throws Exception {
+ //aqui ponemos while loop menu
+ Scanner scanner = new Scanner(System.in);
+ boolean continueRunning = true;
+ while (continueRunning) {
+ System.out.println("Welcome to the Iron Library. \nEnter your choice from the menu below:");
+ System.out.println(ANSI_PURPLE_BACKGROUND + "1. Add Book"+ ANSI_RESET);
+ System.out.println(ANSI_PURPLE_BACKGROUND + "2. Search by title"+ ANSI_RESET);
+ System.out.println(ANSI_PURPLE_BACKGROUND + "3. Search by category"+ ANSI_RESET);
+ System.out.println(ANSI_PURPLE_BACKGROUND + "4. Search by author"+ ANSI_RESET);
+ System.out.println(ANSI_PURPLE_BACKGROUND+ "5.List all books along with author"+ ANSI_RESET);
+ System.out.println(ANSI_PURPLE_BACKGROUND + "6. Issue book to student"+ ANSI_RESET);
+ System.out.println(ANSI_PURPLE_BACKGROUND + "7.List books by USN" + ANSI_RESET);
+ System.out.println("8. Exit"+ ANSI_RESET);
+
+
+
+ int choice = scanner.nextInt();
+ scanner.nextLine();
+
+ switch (choice) {
+
+ case 1:
+ System.out.println("\n1. Add a Book");
+ System.out.print("ISBN: ");
+ String isbn = scanner.nextLine();
+
+ System.out.print("Title: ");
+ String title = scanner.nextLine();
+
+ System.out.print("Category: ");
+ String category = scanner.nextLine();
+
+ System.out.println("How many books are you adding?: ");
+ int quantity = scanner.nextInt();
+ scanner.nextLine();
+
+ Book book = new Book(isbn, title, category, quantity);
+ book.setTitle(title);
+ book.setCategory(category);
+ bookRepository.save(book);
+
+ System.out.print("Author name: ");
+ String authorName = scanner.nextLine();
+ Optional author = Optional.ofNullable(authorRepository.findByName(authorName));
+
+ if (author.isEmpty()) {
+ System.out.println("Author email: ");
+ String email = scanner.nextLine();
+ Author newAuthor = new Author(authorName, email, book);
+ /*author.setName(authorName);
+ author.setEmail(email);
+ author.setAuthorBook(book);*/
+ authorRepository.save(newAuthor);
+ System.out.println("Book added: " + book.getIsbn() + " " + book.getTitle() + " " + book.getCategory() + " " + newAuthor.getName() + " " + newAuthor.getEmail());
+ } else {
+ System.out.println("This author already exists");
+ System.out.println("Book added to author: " + book.getIsbn() + " " + book.getTitle() + " " + book.getCategory() + " " + author.toString());
+ }
+
+
+ System.out.println("Press any key to return to the main page");
+ scanner.nextLine();
+ break;
+
+
+ case 2:
+ System.out.println("\n2. Search by title");
+ System.out.print("Book title: ");
+ title = scanner.nextLine();
+ bookRepository.findByTitle(title).forEach(System.out::println);
+ System.out.println("Press any key to return to the main page");
+ scanner.nextLine();
+ break;
+
+ case 3:
+ System.out.println("\n3. Search by category");
+ System.out.print("Category: ");
+ category = scanner.nextLine();
+ bookRepository.findByCategory(category).forEach(System.out::println);
+ System.out.println("Press any key to return to the main page");
+ scanner.nextLine();
+ break;
+
+ case 4:
+ System.out.println("\n4. Search by author");
+ System.out.print("Author: ");
+ authorName = scanner.nextLine();
+ if (authorName != null) {
+ Author author1 = authorRepository.findByName(authorName);
+ System.out.println("Author's book is: " + author1.getAuthorBook());
+ } else {
+ System.out.println("Author not found.");
+ }
+ System.out.println("Press any key to return to the main page");
+ scanner.nextLine();
+ break;
+
+ case 5:
+ System.out.println("You chose to list all books along with their author: ");
+ List authorBookList = authorRepository.findAll();
+ for (Author item: authorBookList ){
+ System.out.println(item.getAuthorBook().getTitle());
+ System.out.println(item.getName());
+ }
+ System.out.println("Press any key to return to the main page");
+ scanner.nextLine();
+ break;
+
+ case 6:
+ System.out.println("You chose to issue a book to a student");
+ System.out.println("Please enter the student's usn: ");
+ String usn = scanner.nextLine();
+
+ System.out.println("Enter name: ");
+ String name = scanner.nextLine();
+
+ Student student = new Student(usn, name);
+ studentRepository.save(student);
+
+ System.out.println("Enter book ISBN: ");
+ String isbnBook = scanner.nextLine();
+
+ Book bookSaved = bookRepository.findByIsbn(isbnBook);
+ Student studentSaved = studentRepository.findStudentByUsn(usn);
+ libraryService1.issueBookToStudent(studentSaved, name, bookSaved);
+
+ System.out.println("Press any key to return to the main page");
+ scanner.nextLine();
+ break;
+
+ case 7:
+ System.out.println("You choosed searching books by USN.");
+ System.out.println("Please, enter a USN number:");
+ usn = scanner.nextLine();
+ List books = bookRepository.findBookTitlesByStudentUsn(usn);
+ Student student1 = studentRepository.findStudentByUsn(usn);
+ Issue issue = issueRepository.findByIssueStudent(student1);
+ if (books.isEmpty()) {
+ System.out.println("This student doesn't have any book issued");
+ } else {
+ for(Book eachBook: books) {
+ System.out.println("Book Title Student Name Return date\n" +
+ eachBook.getTitle() + " " + student1.getName() + " " + issue.getReturnLocalDate());
+ System.out.println("prueba");
+ }
+ }
+ System.out.println("Press any key to return to the main page");
+ scanner.nextLine();
+ break;
+ case 8:
+ System.out.println("Exiting program...");
+ continueRunning = false;
+ break;
+
+ default: System.out.println("Option not recognized.");
+
+ }
+ }
+
+ scanner.close();
+ System.exit(0);
+ }
+}
diff --git a/src/main/java/IronLibrary/demo/models/Author.java b/src/main/java/IronLibrary/demo/models/Author.java
new file mode 100644
index 00000000..b4f86174
--- /dev/null
+++ b/src/main/java/IronLibrary/demo/models/Author.java
@@ -0,0 +1,74 @@
+package IronLibrary.demo.models;
+
+import jakarta.persistence.*;
+
+import java.sql.Blob;
+
+@Entity
+@Table(name = "Author")
+
+public class Author {
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ @Column(name = "author_id")
+ private int authorId;
+
+ private String name;
+
+ private String email;
+
+ @OneToOne
+ @JoinColumn(name = "author_book", referencedColumnName = "isbn")
+ private Book authorBook;
+
+ public Author() {
+ }
+
+ public Author(String name, String email, Book authorBook) {
+ this.name = name;
+ this.email = email;
+ this.authorBook = authorBook;
+ }
+
+ public int getAuthorId() {
+ return authorId;
+ }
+
+ public void setAuthorId(int authorId) {
+ this.authorId = authorId;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public void setName(String name) {
+ this.name = name;
+ }
+
+ public String getEmail() {
+ return email;
+ }
+
+ public void setEmail(String email) {
+ this.email = email;
+ }
+
+ public Book getAuthorBook() {
+ return authorBook;
+ }
+
+ public void setAuthorBook(Book authorBook) {
+ this.authorBook = authorBook;
+ }
+
+ @Override
+ public String toString() {
+ return "Author{" +
+ "authorId=" + authorId +
+ ", name='" + name + '\'' +
+ ", email='" + email + '\'' +
+ ", authorBook=" + authorBook +
+ '}';
+ }
+}
diff --git a/src/main/java/IronLibrary/demo/models/Book.java b/src/main/java/IronLibrary/demo/models/Book.java
new file mode 100644
index 00000000..21703590
--- /dev/null
+++ b/src/main/java/IronLibrary/demo/models/Book.java
@@ -0,0 +1,71 @@
+package IronLibrary.demo.models;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+
+@Entity
+@Table(name = "Book")
+public class Book {
+ @Id
+ private String isbn;
+
+ private String title;
+
+ private String category;
+
+ private int quantity;
+
+ public Book() {
+ }
+
+ public Book(String isbn, String title, String category, int quantity) {
+ this.isbn = isbn;
+ this.title = title;
+ this.category = category;
+ this.quantity = quantity;
+ }
+
+ public String getIsbn() {
+ return isbn;
+ }
+
+ public void setIsbn(String isbn) {
+ this.isbn = isbn;
+ }
+
+ public String getTitle() {
+ return title;
+ }
+
+ public void setTitle(String title) {
+ this.title = title;
+ }
+
+ public int getQuantity() {
+ return quantity;
+ }
+
+ public void setQuantity(int quantity) {
+ this.quantity = quantity;
+ }
+
+ public String getCategory() {
+ return category;
+ }
+
+ public void setCategory(String category) {
+ this.category = category;
+ }
+
+ @Override
+ public String toString() {
+ return "Book{" +
+ "isbn='" + isbn + '\'' +
+ ", title='" + title + '\'' +
+ ", category='" + category + '\'' +
+ ", quantity=" + quantity +
+ '}';
+ }
+
+}
diff --git a/src/main/java/IronLibrary/demo/models/Issue.java b/src/main/java/IronLibrary/demo/models/Issue.java
new file mode 100644
index 00000000..9275edb1
--- /dev/null
+++ b/src/main/java/IronLibrary/demo/models/Issue.java
@@ -0,0 +1,92 @@
+package IronLibrary.demo.models;
+
+import jakarta.persistence.*;
+
+import java.time.LocalDate;
+import java.util.Date;
+
+@Entity
+@Table(name = "Issue")
+
+public class Issue {
+ @Id
+ @GeneratedValue(strategy = GenerationType.IDENTITY)
+ @Column(name = "issue_id")
+ private int issueId;
+
+ @Column(name = "issue_date")
+ private LocalDate issueDate;
+
+ @Column(name = "return_date")
+ private LocalDate returnDate;
+
+ @OneToOne
+ @JoinColumn(name = "issue_student", referencedColumnName = "usn")
+ private Student issueStudent;
+
+ @OneToOne
+ @JoinColumn(name = "issue_book", referencedColumnName = "isbn")
+ private Book issueBook;
+
+
+ public Issue() {
+ }
+
+ public Issue(LocalDate issueDate, LocalDate returnDate, Student issueStudent, Book issueBook) {
+ this.issueDate = issueDate;
+ this.returnDate = returnDate;
+ this.issueStudent = issueStudent;
+ this.issueBook = issueBook;
+ }
+
+ public int getIssueId() {
+ return issueId;
+ }
+
+ public void setIssueId(int issueId) {
+ this.issueId = issueId;
+ }
+
+ public LocalDate getIssueLocalDate() {
+ return issueDate;
+ }
+
+ public void setIssueDate(LocalDate issueLocalDate) {
+ this.issueDate = issueLocalDate;
+ }
+
+ public LocalDate getReturnLocalDate() {
+ return returnDate;
+ }
+
+ public void setReturnDate(LocalDate returnLocalDate) {
+ this.returnDate = returnLocalDate;
+ }
+
+ public Student getIssueStudent() {
+ return issueStudent;
+ }
+
+ public void setIssueStudent(Student issueStudent) {
+ this.issueStudent = issueStudent;
+ }
+
+ public Book getIssueBook() {
+ return issueBook;
+ }
+
+ public void setIssueBook(Book issueBook) {
+ this.issueBook = issueBook;
+ }
+
+ @Override
+ public String toString() {
+ return "Issue{" +
+ "issueId=" + issueId +
+ ", issueDate=" + issueDate +
+ ", returnDate=" + returnDate +
+ ", issueStudent='" + issueStudent + '\'' +
+ ", issueBook='" + issueBook + '\'' +
+ '}';
+ }
+}
diff --git a/src/main/java/IronLibrary/demo/models/Student.java b/src/main/java/IronLibrary/demo/models/Student.java
new file mode 100644
index 00000000..182105d6
--- /dev/null
+++ b/src/main/java/IronLibrary/demo/models/Student.java
@@ -0,0 +1,53 @@
+package IronLibrary.demo.models;
+import jakarta.persistence.*;
+
+@Entity
+@Table (name= "student")
+public class Student {
+
+ @Id
+ private String usn; //Universal Student Number-unique identifier
+
+ private String name;
+
+ @OneToOne(mappedBy = "issueStudent")
+ /* PARA CLASE ISSUE
+ @OneToOne
+ @JoinColumn(name = "student_usn", referencedColumnName = "usn")
+ private Student issueStudent;
+ */
+ private Issue issue;
+
+ public Student(){
+
+ }
+
+ public Student(String usn, String name) {
+ this.usn = usn;
+ this.name = name;
+ }
+
+ public String getUsn() {
+ return usn;
+ }
+
+ public void setUsn(String usn) {
+ this.usn = usn;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public void setName(String name) {
+ this.name = name;
+ }
+
+ @Override
+ public String toString() {
+ return "Student{" +
+ "usn='" + usn + '\'' +
+ ", name='" + name + '\'' +
+ '}';
+ }
+}
diff --git a/src/main/java/IronLibrary/demo/repositories/AuthorRepository.java b/src/main/java/IronLibrary/demo/repositories/AuthorRepository.java
new file mode 100644
index 00000000..be7ca94d
--- /dev/null
+++ b/src/main/java/IronLibrary/demo/repositories/AuthorRepository.java
@@ -0,0 +1,38 @@
+package IronLibrary.demo.repositories;
+
+import IronLibrary.demo.models.Author;
+import IronLibrary.demo.models.Book;
+import jakarta.transaction.Transactional;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Modifying;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+@Repository
+public interface AuthorRepository extends JpaRepository {
+ //Book findByAuthor(Author author);
+ //search book by author
+ public Author findByName(String authorName);
+
+ //List all books along with author: This action is responsible for listing all the books available and their corresponding authors.
+ @Query(value = "SELECT book.isbn, book.title, book.category, book.quantity, author.name, author.email " +
+ "FROM author " +
+ "JOIN book ON author.author_book = book.isbn", nativeQuery = true)
+ List