diff --git a/.idea/.gitignore b/.idea/.gitignore new file mode 100644 index 00000000..13566b81 --- /dev/null +++ b/.idea/.gitignore @@ -0,0 +1,8 @@ +# Default ignored files +/shelf/ +/workspace.xml +# Editor-based HTTP Client requests +/httpRequests/ +# Datasource local storage ignored files +/dataSources/ +/dataSources.local.xml diff --git a/.idea/compiler.xml b/.idea/compiler.xml new file mode 100644 index 00000000..755d7ed5 --- /dev/null +++ b/.idea/compiler.xml @@ -0,0 +1,22 @@ + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/encodings.xml b/.idea/encodings.xml new file mode 100644 index 00000000..b7843190 --- /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..8d72d9d5 --- /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..83067447 --- /dev/null +++ b/.idea/vcs.xml @@ -0,0 +1,7 @@ + + + + + + + \ No newline at end of file diff --git a/homework/.gitattributes b/homework/.gitattributes new file mode 100644 index 00000000..3b41682a --- /dev/null +++ b/homework/.gitattributes @@ -0,0 +1,2 @@ +/mvnw text eol=lf +*.cmd text eol=crlf diff --git a/homework/.gitignore b/homework/.gitignore new file mode 100644 index 00000000..667aaef0 --- /dev/null +++ b/homework/.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/homework/.mvn/wrapper/maven-wrapper.properties b/homework/.mvn/wrapper/maven-wrapper.properties new file mode 100644 index 00000000..c595b009 --- /dev/null +++ b/homework/.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/homework/mvnw b/homework/mvnw new file mode 100755 index 00000000..bd8896bf --- /dev/null +++ b/homework/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 "$@" diff --git a/homework/mvnw.cmd b/homework/mvnw.cmd new file mode 100644 index 00000000..92450f93 --- /dev/null +++ b/homework/mvnw.cmd @@ -0,0 +1,189 @@ +<# : batch portion +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM http://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Apache Maven Wrapper startup batch script, version 3.3.4 +@REM +@REM Optional ENV vars +@REM MVNW_REPOURL - repo url base for downloading maven distribution +@REM MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven +@REM MVNW_VERBOSE - true: enable verbose log; others: silence the output +@REM ---------------------------------------------------------------------------- + +@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0) +@SET __MVNW_CMD__= +@SET __MVNW_ERROR__= +@SET __MVNW_PSMODULEP_SAVE=%PSModulePath% +@SET PSModulePath= +@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$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/homework/pom.xml b/homework/pom.xml new file mode 100644 index 00000000..660f2c2e --- /dev/null +++ b/homework/pom.xml @@ -0,0 +1,118 @@ + + + 4.0.0 + + org.springframework.boot + spring-boot-starter-parent + 4.0.5 + + + org.example + homework + 0.0.1-SNAPSHOT + homework + homework + + + + + + + + + + + + + + + 21 + + + + org.springframework.boot + spring-boot-starter-data-jpa + + + org.springframework.boot + spring-boot-starter-webmvc + + + + org.projectlombok + lombok + true + + + org.springframework.boot + spring-boot-starter-data-jpa-test + test + + + org.springframework.boot + spring-boot-starter-webmvc-test + test + + + jakarta.validation + jakarta.validation-api + 3.1.1 + compile + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + org.projectlombok + lombok + + + + + + org.apache.maven.plugins + maven-compiler-plugin + + + default-compile + compile + + compile + + + + + org.projectlombok + lombok + + + + + + default-testCompile + test-compile + + testCompile + + + + + org.projectlombok + lombok + + + + + + + + + + diff --git a/homework/src/main/java/org/example/homework/DTO/request/AddBookRequest.java b/homework/src/main/java/org/example/homework/DTO/request/AddBookRequest.java new file mode 100644 index 00000000..b3b0ab28 --- /dev/null +++ b/homework/src/main/java/org/example/homework/DTO/request/AddBookRequest.java @@ -0,0 +1,16 @@ +package org.example.homework.DTO.request; + +import jakarta.validation.constraints.Email; +import jakarta.validation.constraints.Min; +import jakarta.validation.constraints.NotBlank; +import jakarta.validation.constraints.NotNull; + +public record AddBookRequest( + @NotBlank String isbn, + @NotBlank String title, + @NotBlank String category, + @NotNull @Min(1) Integer quantity, + @NotBlank String authorName, + @NotBlank @Email String authorEmail +) { +} diff --git a/homework/src/main/java/org/example/homework/DTO/request/IssueBookRequest.java b/homework/src/main/java/org/example/homework/DTO/request/IssueBookRequest.java new file mode 100644 index 00000000..dd10301a --- /dev/null +++ b/homework/src/main/java/org/example/homework/DTO/request/IssueBookRequest.java @@ -0,0 +1,10 @@ +package org.example.homework.DTO.request; + +import jakarta.validation.constraints.NotBlank; + +public record IssueBookRequest( + @NotBlank String usn, + @NotBlank String studentName, + @NotBlank String bookIsbn +) { +} \ No newline at end of file diff --git a/homework/src/main/java/org/example/homework/DTO/response/BookResponse.java b/homework/src/main/java/org/example/homework/DTO/response/BookResponse.java new file mode 100644 index 00000000..1b21bb8a --- /dev/null +++ b/homework/src/main/java/org/example/homework/DTO/response/BookResponse.java @@ -0,0 +1,11 @@ +package org.example.homework.DTO.response; + +public record BookResponse( + String isbn, + String title, + String category, + Integer quantity, + String authorName, + String authorEmail +) { +} diff --git a/homework/src/main/java/org/example/homework/DTO/response/IssueResponse.java b/homework/src/main/java/org/example/homework/DTO/response/IssueResponse.java new file mode 100644 index 00000000..f7965675 --- /dev/null +++ b/homework/src/main/java/org/example/homework/DTO/response/IssueResponse.java @@ -0,0 +1,15 @@ +package org.example.homework.DTO.response; + + +import java.time.LocalDate; + +public record IssueResponse( + Integer issueId, + String studentUsn, + String studentName, + String bookIsbn, + String bookTitle, + LocalDate issueDate, + LocalDate returnDate +) { +} \ No newline at end of file diff --git a/homework/src/main/java/org/example/homework/DTO/response/IssuedBookResponse.java b/homework/src/main/java/org/example/homework/DTO/response/IssuedBookResponse.java new file mode 100644 index 00000000..33bf8868 --- /dev/null +++ b/homework/src/main/java/org/example/homework/DTO/response/IssuedBookResponse.java @@ -0,0 +1,11 @@ +package org.example.homework.DTO.response; + + +import java.time.LocalDate; + +public record IssuedBookResponse( + String bookTitle, + String studentName, + LocalDate returnDate +) { +} diff --git a/homework/src/main/java/org/example/homework/HomeworkApplication.java b/homework/src/main/java/org/example/homework/HomeworkApplication.java new file mode 100644 index 00000000..d783523d --- /dev/null +++ b/homework/src/main/java/org/example/homework/HomeworkApplication.java @@ -0,0 +1,13 @@ +package org.example.homework; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; + +@SpringBootApplication +public class HomeworkApplication { + + public static void main(String[] args) { + SpringApplication.run(HomeworkApplication.class, args); + } + +} diff --git a/homework/src/main/java/org/example/homework/controller/BookController.java b/homework/src/main/java/org/example/homework/controller/BookController.java new file mode 100644 index 00000000..199c10b7 --- /dev/null +++ b/homework/src/main/java/org/example/homework/controller/BookController.java @@ -0,0 +1,51 @@ +package org.example.homework.controller; + + +import jakarta.validation.Valid; +import lombok.RequiredArgsConstructor; +import org.example.homework.DTO.request.AddBookRequest; +import org.example.homework.DTO.response.BookResponse; +import org.example.homework.service.BookService; +import org.springframework.http.HttpStatus; +import org.springframework.http.ResponseEntity; +import org.springframework.web.bind.annotation.*; + +import java.util.List; + +@RestController +@RequestMapping("/api/books") +@RequiredArgsConstructor +public class BookController { + + private final BookService bookService; + + @PostMapping + public ResponseEntity addBook(@RequestBody @Valid AddBookRequest request) { + BookResponse response = bookService.addBook(request); + return ResponseEntity.status(HttpStatus.CREATED).body(response); + } + + @GetMapping("/search/title") + public ResponseEntity> searchByTitle(@RequestParam String title) { + List response = bookService.searchByTitle(title); + return ResponseEntity.ok(response); + } + + @GetMapping("/search/category") + public ResponseEntity> searchByCategory(@RequestParam String category) { + List response = bookService.searchByCategory(category); + return ResponseEntity.ok(response); + } + + @GetMapping("/search/author") + public ResponseEntity> searchByAuthor(@RequestParam String name) { + List response = bookService.searchByAuthor(name); + return ResponseEntity.ok(response); + } + + @GetMapping + public ResponseEntity> getAllBooksWithAuthors() { + List response = bookService.getAllBooksWithAuthors(); + return ResponseEntity.ok(response); + } +} \ No newline at end of file diff --git a/homework/src/main/java/org/example/homework/controller/IssueController.java b/homework/src/main/java/org/example/homework/controller/IssueController.java new file mode 100644 index 00000000..62a58819 --- /dev/null +++ b/homework/src/main/java/org/example/homework/controller/IssueController.java @@ -0,0 +1,33 @@ +package org.example.homework.controller; + +import jakarta.validation.Valid; +import lombok.RequiredArgsConstructor; +import org.example.homework.DTO.request.IssueBookRequest; +import org.example.homework.DTO.response.IssueResponse; +import org.example.homework.DTO.response.IssuedBookResponse; +import org.example.homework.service.IssueService; +import org.springframework.http.HttpStatus; +import org.springframework.http.ResponseEntity; +import org.springframework.web.bind.annotation.*; + +import java.util.List; + +@RestController +@RequestMapping("/api/issues") +@RequiredArgsConstructor +public class IssueController { + + private final IssueService issueService; + + @PostMapping + public ResponseEntity issueBook(@RequestBody @Valid IssueBookRequest request) { + IssueResponse response = issueService.issueBook(request); + return ResponseEntity.status(HttpStatus.CREATED).body(response); + } + + @GetMapping("/student/{usn}") + public ResponseEntity> getBooksByUsn(@PathVariable String usn) { + List response = issueService.getBooksByUsn(usn); + return ResponseEntity.ok(response); + } +} diff --git a/homework/src/main/java/org/example/homework/entity/Author.java b/homework/src/main/java/org/example/homework/entity/Author.java new file mode 100644 index 00000000..daca4f2c --- /dev/null +++ b/homework/src/main/java/org/example/homework/entity/Author.java @@ -0,0 +1,34 @@ +package org.example.homework.entity; + +import jakarta.persistence.*; +import lombok.AllArgsConstructor; +import lombok.Data; +import lombok.NoArgsConstructor; + +@Entity +@Table(name = "authors") +@AllArgsConstructor +@NoArgsConstructor +@Data +public class Author { + + @Id + @GeneratedValue(strategy = GenerationType.IDENTITY) + private Integer authorId; + + @Column(nullable = false) + private String name; + + @Column(nullable = false) + private String email; + + @OneToOne + @JoinColumn(name = "book_isbn", referencedColumnName = "isbn", unique = true) + private Book authorBook; + + public Author(String name, String email, Book authorBook) { + this.name = name; + this.email = email; + this.authorBook = authorBook; + } +} diff --git a/homework/src/main/java/org/example/homework/entity/Book.java b/homework/src/main/java/org/example/homework/entity/Book.java new file mode 100644 index 00000000..d1da5817 --- /dev/null +++ b/homework/src/main/java/org/example/homework/entity/Book.java @@ -0,0 +1,27 @@ +package org.example.homework.entity; + +import jakarta.persistence.*; +import lombok.AllArgsConstructor; +import lombok.Data; +import lombok.NoArgsConstructor; + +@Entity +@Table(name = "books") +@AllArgsConstructor +@NoArgsConstructor +@Data +public class Book { + + @Id + private String isbn; + + @Column(nullable = false) + private String title; + + @Column(nullable = false) + private String category; + + @Column(nullable = false) + private Integer quantity; + +} diff --git a/homework/src/main/java/org/example/homework/entity/Issue.java b/homework/src/main/java/org/example/homework/entity/Issue.java new file mode 100644 index 00000000..c1d566a1 --- /dev/null +++ b/homework/src/main/java/org/example/homework/entity/Issue.java @@ -0,0 +1,34 @@ +package org.example.homework.entity; + +import jakarta.persistence.*; +import lombok.AllArgsConstructor; +import lombok.Data; +import lombok.NoArgsConstructor; + +import java.time.LocalDate; + +@Entity +@Table(name = "issues") +@Data +@AllArgsConstructor +@NoArgsConstructor +public class Issue { + + @Id + @GeneratedValue(strategy = GenerationType.IDENTITY) + private Integer issueId; + + @Column(nullable = false) + private LocalDate issueDate; + + @Column(nullable = false) + private LocalDate returnDate; + + @ManyToOne(optional = false) + @JoinColumn(name = "student_usn", referencedColumnName = "usn") + private Student issueStudent; + + @ManyToOne(optional = false) + @JoinColumn(name = "book_isbn", referencedColumnName = "isbn") + private Book issueBook; +} diff --git a/homework/src/main/java/org/example/homework/entity/Student.java b/homework/src/main/java/org/example/homework/entity/Student.java new file mode 100644 index 00000000..3f93fc1d --- /dev/null +++ b/homework/src/main/java/org/example/homework/entity/Student.java @@ -0,0 +1,25 @@ +package org.example.homework.entity; + +import jakarta.persistence.Column; +import jakarta.persistence.Entity; +import jakarta.persistence.Id; +import jakarta.persistence.Table; +import lombok.AllArgsConstructor; +import lombok.Builder; +import lombok.Data; +import lombok.NoArgsConstructor; + +@Entity +@Table(name = "students") +@Data +@AllArgsConstructor +@NoArgsConstructor +@Builder +public class Student { + + @Id + private String usn; + + @Column(nullable = false) + private String name; +} diff --git a/homework/src/main/java/org/example/homework/exceptions/GlobalExceptionHandler.java b/homework/src/main/java/org/example/homework/exceptions/GlobalExceptionHandler.java new file mode 100644 index 00000000..243f5610 --- /dev/null +++ b/homework/src/main/java/org/example/homework/exceptions/GlobalExceptionHandler.java @@ -0,0 +1,46 @@ +package org.example.homework.exceptions; + +import org.springframework.http.HttpStatus; +import org.springframework.http.ProblemDetail; +import org.springframework.web.bind.MethodArgumentNotValidException; +import org.springframework.web.bind.annotation.ExceptionHandler; +import org.springframework.web.bind.annotation.RestControllerAdvice; + +@RestControllerAdvice +public class GlobalExceptionHandler { + + @ExceptionHandler(ResourceNotFoundException.class) + public ProblemDetail handleNotFound(ResourceNotFoundException ex) { + ProblemDetail problemDetail = ProblemDetail.forStatusAndDetail(HttpStatus.NOT_FOUND, ex.getMessage()); + problemDetail.setTitle("Resource Not Found"); + return problemDetail; + } + + @ExceptionHandler(ResourceAlreadyExistsException.class) + public ProblemDetail handleAlreadyExists(ResourceAlreadyExistsException ex) { + ProblemDetail problemDetail = ProblemDetail.forStatusAndDetail(HttpStatus.CONFLICT, ex.getMessage()); + problemDetail.setTitle("Resource Already Exists"); + return problemDetail; + } + + @ExceptionHandler(InsufficientQuantityException.class) + public ProblemDetail handleInsufficientQuantity(InsufficientQuantityException ex) { + ProblemDetail problemDetail = ProblemDetail.forStatusAndDetail(HttpStatus.BAD_REQUEST, ex.getMessage()); + problemDetail.setTitle("Insufficient Quantity"); + return problemDetail; + } + + @ExceptionHandler(MethodArgumentNotValidException.class) + public ProblemDetail handleValidation(MethodArgumentNotValidException ex) { + String message = ex.getBindingResult() + .getFieldErrors() + .stream() + .findFirst() + .map(error -> error.getField() + " " + error.getDefaultMessage()) + .orElse("Validation error"); + + ProblemDetail problemDetail = ProblemDetail.forStatusAndDetail(HttpStatus.BAD_REQUEST, message); + problemDetail.setTitle("Validation Error"); + return problemDetail; + } +} diff --git a/homework/src/main/java/org/example/homework/exceptions/InsufficientQuantityException.java b/homework/src/main/java/org/example/homework/exceptions/InsufficientQuantityException.java new file mode 100644 index 00000000..8c3b5f43 --- /dev/null +++ b/homework/src/main/java/org/example/homework/exceptions/InsufficientQuantityException.java @@ -0,0 +1,7 @@ +package org.example.homework.exceptions; + +public class InsufficientQuantityException extends RuntimeException { + public InsufficientQuantityException(String message) { + super(message); + } +} diff --git a/homework/src/main/java/org/example/homework/exceptions/ResourceAlreadyExistsException.java b/homework/src/main/java/org/example/homework/exceptions/ResourceAlreadyExistsException.java new file mode 100644 index 00000000..8cb1588d --- /dev/null +++ b/homework/src/main/java/org/example/homework/exceptions/ResourceAlreadyExistsException.java @@ -0,0 +1,7 @@ +package org.example.homework.exceptions; + +public class ResourceAlreadyExistsException extends RuntimeException { + public ResourceAlreadyExistsException(String message) { + super(message); + } +} diff --git a/homework/src/main/java/org/example/homework/exceptions/ResourceNotFoundException.java b/homework/src/main/java/org/example/homework/exceptions/ResourceNotFoundException.java new file mode 100644 index 00000000..a32790d4 --- /dev/null +++ b/homework/src/main/java/org/example/homework/exceptions/ResourceNotFoundException.java @@ -0,0 +1,7 @@ +package org.example.homework.exceptions; + +public class ResourceNotFoundException extends RuntimeException { + public ResourceNotFoundException(String message) { + super(message); + } +} diff --git a/homework/src/main/java/org/example/homework/repository/AuthorRepository.java b/homework/src/main/java/org/example/homework/repository/AuthorRepository.java new file mode 100644 index 00000000..75c9fcff --- /dev/null +++ b/homework/src/main/java/org/example/homework/repository/AuthorRepository.java @@ -0,0 +1,14 @@ +package org.example.homework.repository; + +import org.example.homework.entity.Author; +import org.springframework.data.jpa.repository.JpaRepository; +import org.springframework.stereotype.Repository; + +import java.util.List; +import java.util.Optional; + +@Repository +public interface AuthorRepository extends JpaRepository { + List findByNameContainingIgnoreCase(String name); + Optional findByAuthorBookIsbn(String isbn); +} diff --git a/homework/src/main/java/org/example/homework/repository/BookRepository.java b/homework/src/main/java/org/example/homework/repository/BookRepository.java new file mode 100644 index 00000000..f5236c1b --- /dev/null +++ b/homework/src/main/java/org/example/homework/repository/BookRepository.java @@ -0,0 +1,13 @@ +package org.example.homework.repository; + +import org.example.homework.entity.Book; +import org.springframework.data.jpa.repository.JpaRepository; +import org.springframework.stereotype.Repository; + +import java.util.List; + +@Repository +public interface BookRepository extends JpaRepository { + List findByTitleContainingIgnoreCase(String title); + List findByCategoryContainingIgnoreCase(String category); +} \ No newline at end of file diff --git a/homework/src/main/java/org/example/homework/repository/IssueRepository.java b/homework/src/main/java/org/example/homework/repository/IssueRepository.java new file mode 100644 index 00000000..27771695 --- /dev/null +++ b/homework/src/main/java/org/example/homework/repository/IssueRepository.java @@ -0,0 +1,12 @@ +package org.example.homework.repository; +import org.example.homework.entity.Issue; +import org.springframework.data.jpa.repository.JpaRepository; +import org.springframework.stereotype.Repository; + +import java.awt.print.Book; +import java.util.List; + +@Repository +public interface IssueRepository extends JpaRepository { + List findByIssueStudentUsn(String usn); +} \ No newline at end of file diff --git a/homework/src/main/java/org/example/homework/repository/StudentRepository.java b/homework/src/main/java/org/example/homework/repository/StudentRepository.java new file mode 100644 index 00000000..6d6504ac --- /dev/null +++ b/homework/src/main/java/org/example/homework/repository/StudentRepository.java @@ -0,0 +1,9 @@ +package org.example.homework.repository; + +import org.example.homework.entity.Student; +import org.springframework.data.jpa.repository.JpaRepository; +import org.springframework.stereotype.Repository; + +@Repository +public interface StudentRepository extends JpaRepository { +} diff --git a/homework/src/main/java/org/example/homework/service/BookService.java b/homework/src/main/java/org/example/homework/service/BookService.java new file mode 100644 index 00000000..813191bb --- /dev/null +++ b/homework/src/main/java/org/example/homework/service/BookService.java @@ -0,0 +1,20 @@ +package org.example.homework.service; + + +import org.example.homework.DTO.request.AddBookRequest; +import org.example.homework.DTO.response.BookResponse; + +import java.util.List; + +public interface BookService { + + BookResponse addBook(AddBookRequest request); + + List searchByTitle(String title); + + List searchByCategory(String category); + + List searchByAuthor(String authorName); + + List getAllBooksWithAuthors(); +} diff --git a/homework/src/main/java/org/example/homework/service/IssueService.java b/homework/src/main/java/org/example/homework/service/IssueService.java new file mode 100644 index 00000000..4ce1e630 --- /dev/null +++ b/homework/src/main/java/org/example/homework/service/IssueService.java @@ -0,0 +1,14 @@ +package org.example.homework.service; + +import org.example.homework.DTO.request.IssueBookRequest; +import org.example.homework.DTO.response.IssueResponse; +import org.example.homework.DTO.response.IssuedBookResponse; + +import java.util.List; + +public interface IssueService { + + IssueResponse issueBook(IssueBookRequest request); + + List getBooksByUsn(String usn); +} diff --git a/homework/src/main/java/org/example/homework/service/impl/BookServiceImpl.java b/homework/src/main/java/org/example/homework/service/impl/BookServiceImpl.java new file mode 100644 index 00000000..3163fdc4 --- /dev/null +++ b/homework/src/main/java/org/example/homework/service/impl/BookServiceImpl.java @@ -0,0 +1,103 @@ +package org.example.homework.service.impl; + +import lombok.RequiredArgsConstructor; +import org.example.homework.DTO.request.AddBookRequest; +import org.example.homework.DTO.response.BookResponse; +import org.example.homework.entity.Author; +import org.example.homework.entity.Book; +import org.example.homework.exceptions.ResourceAlreadyExistsException; +import org.example.homework.repository.AuthorRepository; +import org.example.homework.repository.BookRepository; +import org.example.homework.service.BookService; +import org.springframework.stereotype.Service; +import org.springframework.transaction.annotation.Transactional; + +import java.util.List; + +@Service +@RequiredArgsConstructor +@Transactional +public class BookServiceImpl implements BookService { + + private final BookRepository bookRepository; + private final AuthorRepository authorRepository; + + @Override + public BookResponse addBook(AddBookRequest request) { + if (bookRepository.existsById(request.isbn())) { + throw new ResourceAlreadyExistsException( + "Book already exists with isbn: " + request.isbn() + ); + } + + Book book = new Book(); + book.setIsbn(request.isbn()); + book.setTitle(request.title()); + book.setCategory(request.category()); + book.setQuantity(request.quantity()); + + Book savedBook = bookRepository.save(book); + + Author author = new Author(); + author.setName(request.authorName()); + author.setEmail(request.authorEmail()); + author.setAuthorBook(savedBook); + + Author savedAuthor = authorRepository.save(author); + + return mapToBookResponse(savedBook, savedAuthor); + } + + + @Override + @Transactional(readOnly = true) + public List searchByTitle(String title) { + return bookRepository.findByTitleContainingIgnoreCase(title) + .stream() + .map(this::mapBookToResponseUsingAuthorLookup) + .toList(); + } + + @Override + @Transactional(readOnly = true) + public List searchByCategory(String category) { + return bookRepository.findByCategoryContainingIgnoreCase(category) + .stream() + .map(this::mapBookToResponseUsingAuthorLookup) + .toList(); + } + + @Override + @Transactional(readOnly = true) + public List searchByAuthor(String authorName) { + return authorRepository.findByNameContainingIgnoreCase(authorName) + .stream() + .map(author -> mapToBookResponse(author.getAuthorBook(), author)) + .toList(); + } + + @Override + @Transactional(readOnly = true) + public List getAllBooksWithAuthors() { + return authorRepository.findAll() + .stream() + .map(author -> mapToBookResponse(author.getAuthorBook(), author)) + .toList(); + } + + private BookResponse mapBookToResponseUsingAuthorLookup(Book book) { + Author author = authorRepository.findByAuthorBookIsbn(book.getIsbn()).orElse(null); + return mapToBookResponse(book, author); + } + + private BookResponse mapToBookResponse(Book book, Author author) { + return new BookResponse( + book.getIsbn(), + book.getTitle(), + book.getCategory(), + book.getQuantity(), + author != null ? author.getName() : null, + author != null ? author.getEmail() : null + ); + } +} diff --git a/homework/src/main/java/org/example/homework/service/impl/IssueServiceImpl.java b/homework/src/main/java/org/example/homework/service/impl/IssueServiceImpl.java new file mode 100644 index 00000000..9d4fe1c0 --- /dev/null +++ b/homework/src/main/java/org/example/homework/service/impl/IssueServiceImpl.java @@ -0,0 +1,93 @@ +package org.example.homework.service.impl; + +import lombok.RequiredArgsConstructor; +import org.example.homework.DTO.request.IssueBookRequest; +import org.example.homework.DTO.response.IssueResponse; +import org.example.homework.DTO.response.IssuedBookResponse; +import org.example.homework.entity.Book; +import org.example.homework.entity.Issue; +import org.example.homework.entity.Student; +import org.example.homework.exceptions.InsufficientQuantityException; +import org.example.homework.exceptions.ResourceNotFoundException; +import org.example.homework.repository.BookRepository; +import org.example.homework.repository.IssueRepository; +import org.example.homework.repository.StudentRepository; +import org.example.homework.service.IssueService; +import org.springframework.stereotype.Service; +import org.springframework.transaction.annotation.Transactional; + +import java.time.LocalDate; +import java.util.List; + +@Service +@RequiredArgsConstructor +@Transactional +public class IssueServiceImpl implements IssueService { + + private final IssueRepository issueRepository; + private final StudentRepository studentRepository; + private final BookRepository bookRepository; + + @Override + public IssueResponse issueBook(IssueBookRequest request) { + Book book = bookRepository.findById(request.bookIsbn()) + .orElseThrow(() -> new ResourceNotFoundException( + "Book not found with isbn: " + request.bookIsbn() + )); + + if (book.getQuantity() == null || book.getQuantity() <= 0) { + throw new InsufficientQuantityException( + "Book is out of stock for isbn: " + request.bookIsbn() + ); + } + + Student student = studentRepository.findById(request.usn()) + .orElseGet(() -> { + Student newStudent = new Student(); + newStudent.setUsn(request.usn()); + newStudent.setName(request.studentName()); + return studentRepository.save(newStudent); + }); + + LocalDate issueDate = LocalDate.now(); + LocalDate returnDate = issueDate.plusDays(7); + + Issue issue = new Issue(); + issue.setIssueDate(issueDate); + issue.setReturnDate(returnDate); + issue.setIssueStudent(student); + issue.setIssueBook(book); + + Issue savedIssue = issueRepository.save(issue); + + book.setQuantity(book.getQuantity() - 1); + bookRepository.save(book); + + return new IssueResponse( + savedIssue.getIssueId(), + student.getUsn(), + student.getName(), + book.getIsbn(), + book.getTitle(), + savedIssue.getIssueDate(), + savedIssue.getReturnDate() + ); + } + + @Override + @Transactional(readOnly = true) + public List getBooksByUsn(String usn) { + if (!studentRepository.existsById(usn)) { + throw new ResourceNotFoundException("Student not found with usn: " + usn); + } + + return issueRepository.findByIssueStudentUsn(usn) + .stream() + .map(issue -> new IssuedBookResponse( + issue.getIssueBook().getTitle(), + issue.getIssueStudent().getName(), + issue.getReturnDate() + )) + .toList(); + } +} diff --git a/homework/src/main/resources/application.properties b/homework/src/main/resources/application.properties new file mode 100644 index 00000000..cfb278f8 --- /dev/null +++ b/homework/src/main/resources/application.properties @@ -0,0 +1 @@ +spring.application.name=homework diff --git a/homework/src/test/java/org/example/homework/BookServiceImplTest.java b/homework/src/test/java/org/example/homework/BookServiceImplTest.java new file mode 100644 index 00000000..e0e130be --- /dev/null +++ b/homework/src/test/java/org/example/homework/BookServiceImplTest.java @@ -0,0 +1,136 @@ +package org.example.homework; + +import org.example.homework.DTO.request.AddBookRequest; +import org.example.homework.DTO.response.BookResponse; +import org.example.homework.entity.Author; +import org.example.homework.entity.Book; +import org.example.homework.exceptions.ResourceAlreadyExistsException; +import org.example.homework.repository.AuthorRepository; +import org.example.homework.repository.BookRepository; +import org.example.homework.service.impl.BookServiceImpl; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.DisplayName; +import org.junit.jupiter.api.Test; +import org.junit.jupiter.api.extension.ExtendWith; +import org.mockito.InjectMocks; +import org.mockito.Mock; +import org.mockito.junit.jupiter.MockitoExtension; + +import java.util.List; +import java.util.Optional; + +import static org.junit.jupiter.api.Assertions.*; +import static org.mockito.BDDMockito.*; + +@ExtendWith(MockitoExtension.class) +class BookServiceImplTest { + + @Mock + private BookRepository bookRepository; + + @Mock + private AuthorRepository authorRepository; + + @InjectMocks + private BookServiceImpl bookService; + + private Book sampleBook; + private Author sampleAuthor; + private AddBookRequest sampleRequest; + + @BeforeEach + void setUp() { + sampleBook = new Book(); + sampleBook.setIsbn("978-3-16-148410-0"); + sampleBook.setTitle("The Notebook"); + sampleBook.setCategory("Romance"); + sampleBook.setQuantity(4); + + sampleAuthor = new Author(); + sampleAuthor.setAuthorId(1); + sampleAuthor.setName("Nicholas Sparks"); + sampleAuthor.setEmail("nicholassparks@gmail.com"); + sampleAuthor.setAuthorBook(sampleBook); + + sampleRequest = new AddBookRequest( + "978-3-16-148410-0", + "The Notebook", + "Romance", + 4, + "Nicholas Sparks", + "nicholassparks@gmail.com" + ); + } + + @Test + @DisplayName("Should successfully save book and author") + void addBook_Success() { + given(bookRepository.existsById(sampleRequest.isbn())).willReturn(false); + given(bookRepository.save(any(Book.class))).willReturn(sampleBook); + given(authorRepository.save(any(Author.class))).willReturn(sampleAuthor); + + BookResponse response = bookService.addBook(sampleRequest); + + assertAll("Book Response Validation", + () -> assertNotNull(response), + () -> assertEquals(sampleRequest.isbn(), response.isbn()), + () -> assertEquals(sampleRequest.authorName(), response.authorName()) + ); + + verify(bookRepository).existsById(sampleRequest.isbn()); + verify(bookRepository).save(any(Book.class)); + verify(authorRepository).save(any(Author.class)); + } + + @Test + @DisplayName("Should throw ResourceAlreadyExistsException when ISBN exists") + void addBook_AlreadyExists_ThrowsException() { + given(bookRepository.existsById(sampleRequest.isbn())).willReturn(true); + + assertThrows(ResourceAlreadyExistsException.class, () -> bookService.addBook(sampleRequest)); + + verify(bookRepository).existsById(sampleRequest.isbn()); + verify(bookRepository, never()).save(any()); + verify(authorRepository, never()).save(any()); + } + + @Test + @DisplayName("Should return books when searching by title") + void searchByTitle_ReturnsList() { + String title = "Notebook"; + given(bookRepository.findByTitleContainingIgnoreCase(title)).willReturn(List.of(sampleBook)); + given(authorRepository.findByAuthorBookIsbn(sampleBook.getIsbn())).willReturn(Optional.of(sampleAuthor)); + List response = bookService.searchByTitle(title); + + assertFalse(response.isEmpty()); + assertEquals(sampleAuthor.getName(), response.get(0).authorName()); + + verify(bookRepository).findByTitleContainingIgnoreCase(title); + } + + @Test + @DisplayName("Should return all books with their authors") + void getAllBooksWithAuthors_ReturnsAll() { + + given(authorRepository.findAll()).willReturn(List.of(sampleAuthor)); + + List response = bookService.getAllBooksWithAuthors(); + + assertEquals(1, response.size()); + assertEquals(sampleBook.getTitle(), response.get(0).title()); + verify(authorRepository).findAll(); + } + + @Test + @DisplayName("Should handle case where author is missing for a book") + void searchByTitle_AuthorNotFound_ReturnsNullAuthorFields() { + + given(bookRepository.findByTitleContainingIgnoreCase("Notebook")).willReturn(List.of(sampleBook)); + given(authorRepository.findByAuthorBookIsbn(sampleBook.getIsbn())).willReturn(Optional.empty()); + + List response = bookService.searchByTitle("Notebook"); + + assertNull(response.get(0).authorName()); + assertNull(response.get(0).authorEmail()); + } +} \ No newline at end of file diff --git a/homework/src/test/java/org/example/homework/HomeworkApplicationTests.java b/homework/src/test/java/org/example/homework/HomeworkApplicationTests.java new file mode 100644 index 00000000..3a93f35f --- /dev/null +++ b/homework/src/test/java/org/example/homework/HomeworkApplicationTests.java @@ -0,0 +1,13 @@ +package org.example.homework; + +import org.junit.jupiter.api.Test; +import org.springframework.boot.test.context.SpringBootTest; + +@SpringBootTest +class HomeworkApplicationTests { + + @Test + void contextLoads() { + } + +} diff --git a/homework/src/test/java/org/example/homework/IssueServiceImplTest.java b/homework/src/test/java/org/example/homework/IssueServiceImplTest.java new file mode 100644 index 00000000..04e3b73c --- /dev/null +++ b/homework/src/test/java/org/example/homework/IssueServiceImplTest.java @@ -0,0 +1,134 @@ +package org.example.homework; + +import org.example.homework.DTO.request.IssueBookRequest; +import org.example.homework.DTO.response.IssueResponse; +import org.example.homework.DTO.response.IssuedBookResponse; +import org.example.homework.entity.Book; +import org.example.homework.entity.Issue; +import org.example.homework.entity.Student; +import org.example.homework.exceptions.InsufficientQuantityException; +import org.example.homework.exceptions.ResourceNotFoundException; +import org.example.homework.repository.BookRepository; +import org.example.homework.repository.IssueRepository; +import org.example.homework.repository.StudentRepository; +import org.example.homework.service.impl.IssueServiceImpl; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.DisplayName; +import org.junit.jupiter.api.Test; +import org.junit.jupiter.api.extension.ExtendWith; +import org.mockito.InjectMocks; +import org.mockito.Mock; +import org.mockito.junit.jupiter.MockitoExtension; + +import java.time.LocalDate; +import java.util.List; +import java.util.Optional; + +import static org.junit.jupiter.api.Assertions.*; +import static org.mockito.BDDMockito.*; + +@ExtendWith(MockitoExtension.class) +class IssueServiceImplTest { + + @Mock + private IssueRepository issueRepository; + @Mock + private StudentRepository studentRepository; + @Mock + private BookRepository bookRepository; + + @InjectMocks + private IssueServiceImpl issueService; + + private Book sharedBook; + private Student sharedStudent; + private Issue sharedIssue; + private IssueBookRequest sharedRequest; + + @BeforeEach + void setUp() { + sharedBook = new Book(); + sharedBook.setIsbn("978-0132350884"); + sharedBook.setTitle("Clean Code"); + sharedBook.setQuantity(10); + + sharedStudent = new Student(); + sharedStudent.setUsn("2024MS01"); + sharedStudent.setName("Ali Aliyev"); + + sharedRequest = new IssueBookRequest("2024MS01", "Ali Aliyev", "978-0132350884"); + + sharedIssue = new Issue(); + sharedIssue.setIssueId(1); + sharedIssue.setIssueDate(LocalDate.now()); + sharedIssue.setReturnDate(LocalDate.now().plusDays(7)); + sharedIssue.setIssueBook(sharedBook); + sharedIssue.setIssueStudent(sharedStudent); + } + + @Test + @DisplayName("GIVEN valid request WHEN issueBook THEN return success response and decrement quantity") + void issueBook_ShouldReturnSuccessResponse() { + given(bookRepository.findById(sharedRequest.bookIsbn())).willReturn(Optional.of(sharedBook)); + given(studentRepository.findById(sharedRequest.usn())).willReturn(Optional.of(sharedStudent)); + given(issueRepository.save(any(Issue.class))).willReturn(sharedIssue); + + IssueResponse response = issueService.issueBook(sharedRequest); + + assertNotNull(response); + assertEquals(9, sharedBook.getQuantity()); + assertEquals(sharedIssue.getIssueId(), response.issueId()); + assertEquals(sharedStudent.getUsn(), response.studentUsn()); + + verify(bookRepository).save(sharedBook); + verify(issueRepository).save(any(Issue.class)); + } + + @Test + @DisplayName("GIVEN book out of stock WHEN issueBook THEN throw InsufficientQuantityException") + void issueBook_WhenOutOfStock_ShouldThrowException() { + sharedBook.setQuantity(0); + given(bookRepository.findById(sharedRequest.bookIsbn())).willReturn(Optional.of(sharedBook)); + + assertThrows(InsufficientQuantityException.class, () -> issueService.issueBook(sharedRequest)); + + verify(issueRepository, never()).save(any()); + verify(bookRepository, never()).save(sharedBook); + } + + @Test + @DisplayName("GIVEN student not exists WHEN issueBook THEN create new student and issue") + void issueBook_WhenStudentNotFound_ShouldCreateNewStudent() { + given(bookRepository.findById(sharedRequest.bookIsbn())).willReturn(Optional.of(sharedBook)); + given(studentRepository.findById(sharedRequest.usn())).willReturn(Optional.empty()); + given(studentRepository.save(any(Student.class))).willReturn(sharedStudent); + given(issueRepository.save(any(Issue.class))).willReturn(sharedIssue); + + issueService.issueBook(sharedRequest); + + verify(studentRepository).save(any(Student.class)); + verify(issueRepository).save(any(Issue.class)); + } + + @Test + @DisplayName("GİVEN existing USN WHEN getBooksByUsn THEN return list of issued books") + void getBooksByUsn_ShouldReturnList() { + given(studentRepository.existsById("2024MS01")).willReturn(true); + given(issueRepository.findByIssueStudentUsn("2024MS01")).willReturn(List.of(sharedIssue)); + + List results = issueService.getBooksByUsn("2024MS01"); + + assertFalse(results.isEmpty()); + assertEquals(sharedBook.getTitle(), results.get(0).bookTitle()); + assertEquals(sharedStudent.getName(), results.get(0).studentName()); + } + + @Test + @DisplayName("GİVEN invalid USN WHEN getBooksByUsn THEN throw ResourceNotFoundException") + void getBooksByUsn_WhenStudentNotFound_ShouldThrowException() { + given(studentRepository.existsById("invalid-usn")).willReturn(false); + + assertThrows(ResourceNotFoundException.class, () -> issueService.getBooksByUsn("invalid-usn")); + verify(issueRepository, never()).findByIssueStudentUsn(anyString()); + } +} \ No newline at end of file