From 2efbed6dd39d45e967781b4653bb71b474a5f41a Mon Sep 17 00:00:00 2001 From: Yusif Xankisiyev Date: Tue, 7 Apr 2026 23:26:05 +0400 Subject: [PATCH 1/2] Yusif --- .idea/.gitignore | 10 + .idea/compiler.xml | 18 ++ .idea/encodings.xml | 6 + .idea/homework-java-ironlibrary.iml | 9 + .idea/jarRepositories.xml | 20 ++ .idea/misc.xml | 14 + .idea/modules.xml | 8 + .idea/vcs.xml | 6 + homework/.gitattributes | 2 + homework/.gitignore | 33 ++ .../.mvn/wrapper/maven-wrapper.properties | 3 + homework/mvnw | 295 ++++++++++++++++++ homework/mvnw.cmd | 189 +++++++++++ homework/pom.xml | 68 ++++ .../example/homework/HomeworkApplication.java | 13 + .../com/example/homework/cli/LibraryCLI.java | 179 +++++++++++ .../com/example/homework/model/Author.java | 63 ++++ .../java/com/example/homework/model/Book.java | 63 ++++ .../com/example/homework/model/Issue.java | 76 +++++ .../com/example/homework/model/Student.java | 38 +++ .../homework/repository/AuthorRepository.java | 9 + .../homework/repository/BookRepository.java | 10 + .../homework/repository/IssueRepository.java | 11 + .../repository/StudentRepository.java | 7 + .../homework/service/LibraryService.java | 96 ++++++ .../src/main/resources/application.properties | 12 + .../homework/HomeworkApplicationTests.java | 13 + .../example/homework/LibraryServiceTest.java | 107 +++++++ 28 files changed, 1378 insertions(+) create mode 100644 .idea/.gitignore create mode 100644 .idea/compiler.xml create mode 100644 .idea/encodings.xml create mode 100644 .idea/homework-java-ironlibrary.iml create mode 100644 .idea/jarRepositories.xml create mode 100644 .idea/misc.xml create mode 100644 .idea/modules.xml create mode 100644 .idea/vcs.xml create mode 100644 homework/.gitattributes create mode 100644 homework/.gitignore create mode 100644 homework/.mvn/wrapper/maven-wrapper.properties create mode 100755 homework/mvnw create mode 100644 homework/mvnw.cmd create mode 100644 homework/pom.xml create mode 100644 homework/src/main/java/com/example/homework/HomeworkApplication.java create mode 100644 homework/src/main/java/com/example/homework/cli/LibraryCLI.java create mode 100644 homework/src/main/java/com/example/homework/model/Author.java create mode 100644 homework/src/main/java/com/example/homework/model/Book.java create mode 100644 homework/src/main/java/com/example/homework/model/Issue.java create mode 100644 homework/src/main/java/com/example/homework/model/Student.java create mode 100644 homework/src/main/java/com/example/homework/repository/AuthorRepository.java create mode 100644 homework/src/main/java/com/example/homework/repository/BookRepository.java create mode 100644 homework/src/main/java/com/example/homework/repository/IssueRepository.java create mode 100644 homework/src/main/java/com/example/homework/repository/StudentRepository.java create mode 100644 homework/src/main/java/com/example/homework/service/LibraryService.java create mode 100644 homework/src/main/resources/application.properties create mode 100644 homework/src/test/java/com/example/homework/HomeworkApplicationTests.java create mode 100644 homework/src/test/java/com/example/homework/LibraryServiceTest.java diff --git a/.idea/.gitignore b/.idea/.gitignore new file mode 100644 index 00000000..ab1f4164 --- /dev/null +++ b/.idea/.gitignore @@ -0,0 +1,10 @@ +# Default ignored files +/shelf/ +/workspace.xml +# Ignored default folder with query files +/queries/ +# Datasource local storage ignored files +/dataSources/ +/dataSources.local.xml +# Editor-based HTTP Client requests +/httpRequests/ diff --git a/.idea/compiler.xml b/.idea/compiler.xml new file mode 100644 index 00000000..d57534f5 --- /dev/null +++ b/.idea/compiler.xml @@ -0,0 +1,18 @@ + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/encodings.xml b/.idea/encodings.xml new file mode 100644 index 00000000..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..b37360b9 --- /dev/null +++ b/.idea/misc.xml @@ -0,0 +1,14 @@ + + + + + + + + + + \ No newline at end of file diff --git a/.idea/modules.xml b/.idea/modules.xml new file mode 100644 index 00000000..821fdf28 --- /dev/null +++ b/.idea/modules.xml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/.idea/vcs.xml b/.idea/vcs.xml new file mode 100644 index 00000000..35eb1ddf --- /dev/null +++ b/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/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..13bd6c46 --- /dev/null +++ b/homework/pom.xml @@ -0,0 +1,68 @@ + + + 4.0.0 + + org.springframework.boot + spring-boot-starter-parent + 4.0.5 + + + com.example + homework + 0.0.1-SNAPSHOT + homework + homework + + + + + + + + + + + + + + + 17 + + + + org.springframework.boot + spring-boot-starter-data-jpa + + + org.springframework.boot + spring-boot-starter-webmvc + + + + com.mysql + mysql-connector-j + runtime + + + org.springframework.boot + spring-boot-starter-data-jpa-test + test + + + org.springframework.boot + spring-boot-starter-webmvc-test + test + + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + + diff --git a/homework/src/main/java/com/example/homework/HomeworkApplication.java b/homework/src/main/java/com/example/homework/HomeworkApplication.java new file mode 100644 index 00000000..6ed52c9c --- /dev/null +++ b/homework/src/main/java/com/example/homework/HomeworkApplication.java @@ -0,0 +1,13 @@ +package com.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/com/example/homework/cli/LibraryCLI.java b/homework/src/main/java/com/example/homework/cli/LibraryCLI.java new file mode 100644 index 00000000..fe7535fc --- /dev/null +++ b/homework/src/main/java/com/example/homework/cli/LibraryCLI.java @@ -0,0 +1,179 @@ +package com.example.homework.cli; + +import com.example.homework.model.Author; +import com.example.homework.model.Book; +import com.example.homework.model.Issue; +import com.example.homework.service.LibraryService; +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.boot.CommandLineRunner; + +import org.springframework.stereotype.Component; + +import java.util.List; +import java.util.Scanner; + +@Component +public class LibraryCLI implements CommandLineRunner { + + private final LibraryService libraryService; + + private final Scanner scanner = new Scanner(System.in); + + public LibraryCLI(LibraryService libraryService) { + this.libraryService = libraryService; + } + + @Override + public void run(String... args) { + while (true) { + printMenu(); + int choice = readInt("Enter your choice: "); + System.out.println(); + try { + switch (choice) { + case 1 -> addBook(); + case 2 -> searchByTitle(); + case 3 -> searchByCategory(); + case 4 -> searchByAuthor(); + case 5 -> listAllBooks(); + case 6 -> issueBook(); + case 7 -> listByUsn(); + case 8 -> listDueToday(); + case 9 -> { System.out.println("Goodbye!"); return; } + default -> System.out.println("Invalid option. Please choose 1-9."); + } + } catch (Exception e) { + System.out.println("Error: " + e.getMessage()); + } + System.out.println(); + } + } + + // ── Menu ────────────────────────────────────────────────── + + private void printMenu() { + System.out.println("========== Library Management System =========="); + System.out.println("1. Add a book"); + System.out.println("2. Search book by title"); + System.out.println("3. Search book by category"); + System.out.println("4. Search book by Author"); + System.out.println("5. List all books along with author"); + System.out.println("6. Issue book to student"); + System.out.println("7. List books by USN"); + System.out.println("8. List books to be returned today (Bonus)"); + System.out.println("9. Exit"); + System.out.println("==============================================="); + } + + // ── Actions ─────────────────────────────────────────────── + + private void addBook() { + String isbn = readString("Enter isbn: "); + String title = readString("Enter title: "); + String cat = readString("Enter category: "); + String aName = readString("Enter Author name: "); + String aEmail = readString("Enter Author mail: "); + int qty = readInt("Enter number of books: "); + + libraryService.addBook(isbn, title, cat, qty, aName, aEmail); + System.out.println("Book added successfully!"); + } + + private void searchByTitle() { + String title = readString("Enter title: "); + List books = libraryService.searchByTitle(title); + printBookHeader(); + books.forEach(this::printBook); + if (books.isEmpty()) System.out.println("No books found."); + } + + private void searchByCategory() { + String cat = readString("Enter category: "); + List books = libraryService.searchByCategory(cat); + printBookHeader(); + books.forEach(this::printBook); + if (books.isEmpty()) System.out.println("No books found."); + } + + private void searchByAuthor() { + String name = readString("Enter name: "); + List authors = libraryService.searchByAuthor(name); + printBookHeader(); + authors.stream().map(Author::getAuthorBook).forEach(this::printBook); + if (authors.isEmpty()) System.out.println("No books found."); + } + + private void listAllBooks() { + List authors = libraryService.listAllBooksWithAuthors(); + System.out.printf("%-25s %-25s %-15s %-12s %-20s %-30s%n", + "Book ISBN", "Book Title", "Category", "No of Books", "Author name", "Author mail"); + System.out.println("-".repeat(127)); + for (Author a : authors) { + Book b = a.getAuthorBook(); + System.out.printf("%-25s %-25s %-15s %-12d %-20s %-30s%n", + b.getIsbn(), b.getTitle(), b.getCategory(), + b.getQuantity(), a.getName(), a.getEmail()); + } + if (authors.isEmpty()) System.out.println("No books in library."); + } + + private void issueBook() { + String usn = readString("Enter usn: "); + String name = readString("Enter name: "); + String isbn = readString("Enter book ISBN: "); + Issue issue = libraryService.issueBook(usn, name, isbn); + System.out.println("Book issued. Return date : " + issue.getReturnDate()); + } + + private void listByUsn() { + String usn = readString("Enter usn: "); + List issues = libraryService.listBooksByUsn(usn); + System.out.printf("%-25s %-20s %-25s%n", "Book Title", "Student Name", "Return date"); + System.out.println("-".repeat(70)); + issues.forEach(i -> System.out.printf("%-25s %-20s %-25s%n", + i.getIssueBook().getTitle(), + i.getIssueStudent().getName(), + i.getReturnDate())); + if (issues.isEmpty()) System.out.println("No issued books found for this USN."); + } + + private void listDueToday() { + List issues = libraryService.listBooksReturnToday(); + System.out.printf("%-25s %-20s %-25s%n", "Book Title", "Student Name", "Return date"); + System.out.println("-".repeat(70)); + issues.forEach(i -> System.out.printf("%-25s %-20s %-25s%n", + i.getIssueBook().getTitle(), + i.getIssueStudent().getName(), + i.getReturnDate())); + if (issues.isEmpty()) System.out.println("No books due today."); + } + + // ── Helpers ─────────────────────────────────────────────── + + private void printBookHeader() { + System.out.printf("%-25s %-25s %-15s %-12s%n", + "Book ISBN", "Book Title", "Category", "No of Books"); + System.out.println("-".repeat(77)); + } + + private void printBook(Book b) { + System.out.printf("%-25s %-25s %-15s %-12d%n", + b.getIsbn(), b.getTitle(), b.getCategory(), b.getQuantity()); + } + + private String readString(String prompt) { + System.out.print(prompt); + return scanner.nextLine().trim(); + } + + private int readInt(String prompt) { + while (true) { + System.out.print(prompt); + try { + return Integer.parseInt(scanner.nextLine().trim()); + } catch (NumberFormatException e) { + System.out.println("Please enter a valid number."); + } + } + } +} diff --git a/homework/src/main/java/com/example/homework/model/Author.java b/homework/src/main/java/com/example/homework/model/Author.java new file mode 100644 index 00000000..78cad3cc --- /dev/null +++ b/homework/src/main/java/com/example/homework/model/Author.java @@ -0,0 +1,63 @@ +package com.example.homework.model; + +import jakarta.persistence.*; + +@Entity +@Table(name = "author") +public class Author { + + @Id + @GeneratedValue(strategy = GenerationType.IDENTITY) + @Column(name = "author_id") + private int authorId; + + @Column(name = "name", nullable = false) + private String name; + + @Column(name = "email", nullable = false) + private String email; + + @OneToOne + @JoinColumn(name = "isbn", 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; + } +} diff --git a/homework/src/main/java/com/example/homework/model/Book.java b/homework/src/main/java/com/example/homework/model/Book.java new file mode 100644 index 00000000..af1db45b --- /dev/null +++ b/homework/src/main/java/com/example/homework/model/Book.java @@ -0,0 +1,63 @@ +package com.example.homework.model; + +import jakarta.persistence.*; + +@Entity +@Table(name = "book") +public class Book { + + @Id + @Column(name = "isbn", unique = true, nullable = false) + private String isbn; + + @Column(name = "title", nullable = false) + private String title; + + @Column(name = "category", nullable = false) + private String category; + + @Column(name = "quantity", nullable = false) + 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 String getCategory() { + return category; + } + + public void setCategory(String category) { + this.category = category; + } + + public int getQuantity() { + return quantity; + } + + public void setQuantity(int quantity) { + if (quantity < 0) throw new IllegalArgumentException("Quantity cannot be negative"); + this.quantity = quantity; + } +} diff --git a/homework/src/main/java/com/example/homework/model/Issue.java b/homework/src/main/java/com/example/homework/model/Issue.java new file mode 100644 index 00000000..30cf1478 --- /dev/null +++ b/homework/src/main/java/com/example/homework/model/Issue.java @@ -0,0 +1,76 @@ +package com.example.homework.model; + +import jakarta.persistence.*; + +@Entity +@Table(name = "issue") +public class Issue { + + @Id + @GeneratedValue(strategy = GenerationType.IDENTITY) + @Column(name = "issue_id") + private int issueId; + + @Column(name = "issue_date", nullable = false) + private String issueDate; + + @Column(name = "return_date", nullable = false) + private String returnDate; + + @ManyToOne + @JoinColumn(name = "usn", referencedColumnName = "usn") + private Student issueStudent; + + @ManyToOne + @JoinColumn(name = "isbn", referencedColumnName = "isbn") + private Book issueBook; + + public Issue() {} + + public Issue(String issueDate, String returnDate, Student issueStudent, Book issueBook) { + this.issueDate = issueDate; + this.returnDate = returnDate; + this.issueStudent = issueStudent; + this.issueBook = issueBook; + } + + public int getIssueId() { + return issueId; + } + + public void setIssueId(int issueId) { + this.issueId = issueId; + } + + public String getIssueDate() { + return issueDate; + } + + public void setIssueDate(String issueDate) { + this.issueDate = issueDate; + } + + public String getReturnDate() { + return returnDate; + } + + public void setReturnDate(String returnDate) { + this.returnDate = returnDate; + } + + 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; + } +} diff --git a/homework/src/main/java/com/example/homework/model/Student.java b/homework/src/main/java/com/example/homework/model/Student.java new file mode 100644 index 00000000..b78c2932 --- /dev/null +++ b/homework/src/main/java/com/example/homework/model/Student.java @@ -0,0 +1,38 @@ +package com.example.homework.model; + +import jakarta.persistence.*; + +@Entity +@Table(name = "student") +public class Student { + + @Id + @Column(name = "usn", unique = true, nullable = false) + private String usn; + + @Column(name = "name", nullable = false) + private String name; + + 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; + } +} \ No newline at end of file diff --git a/homework/src/main/java/com/example/homework/repository/AuthorRepository.java b/homework/src/main/java/com/example/homework/repository/AuthorRepository.java new file mode 100644 index 00000000..eddb7d84 --- /dev/null +++ b/homework/src/main/java/com/example/homework/repository/AuthorRepository.java @@ -0,0 +1,9 @@ +package com.example.homework.repository; + +import com.example.homework.model.Author; +import org.springframework.data.jpa.repository.JpaRepository; +import java.util.List; + +public interface AuthorRepository extends JpaRepository { + List findByNameContainingIgnoreCase(String name); +} diff --git a/homework/src/main/java/com/example/homework/repository/BookRepository.java b/homework/src/main/java/com/example/homework/repository/BookRepository.java new file mode 100644 index 00000000..6d19df50 --- /dev/null +++ b/homework/src/main/java/com/example/homework/repository/BookRepository.java @@ -0,0 +1,10 @@ +package com.example.homework.repository; + +import com.example.homework.model.Book; +import org.springframework.data.jpa.repository.JpaRepository; +import java.util.List; + +public interface BookRepository extends JpaRepository { + List findByTitleContainingIgnoreCase(String title); + List findByCategoryIgnoreCase(String category); +} \ No newline at end of file diff --git a/homework/src/main/java/com/example/homework/repository/IssueRepository.java b/homework/src/main/java/com/example/homework/repository/IssueRepository.java new file mode 100644 index 00000000..6efad510 --- /dev/null +++ b/homework/src/main/java/com/example/homework/repository/IssueRepository.java @@ -0,0 +1,11 @@ +package com.example.homework.repository; + +import com.example.homework.model.Issue; +import org.springframework.data.jpa.repository.JpaRepository; + +import java.util.List; + +public interface IssueRepository extends JpaRepository { + List findByIssueStudent_Usn(String usn); + List findByReturnDate(String returnDate); +} diff --git a/homework/src/main/java/com/example/homework/repository/StudentRepository.java b/homework/src/main/java/com/example/homework/repository/StudentRepository.java new file mode 100644 index 00000000..5af869bf --- /dev/null +++ b/homework/src/main/java/com/example/homework/repository/StudentRepository.java @@ -0,0 +1,7 @@ +package com.example.homework.repository; + +import com.example.homework.model.Student; +import org.springframework.data.jpa.repository.JpaRepository; + +public interface StudentRepository extends JpaRepository { +} diff --git a/homework/src/main/java/com/example/homework/service/LibraryService.java b/homework/src/main/java/com/example/homework/service/LibraryService.java new file mode 100644 index 00000000..e339bf05 --- /dev/null +++ b/homework/src/main/java/com/example/homework/service/LibraryService.java @@ -0,0 +1,96 @@ +package com.example.homework.service; + +import com.example.homework.model.Author; +import com.example.homework.model.Book; +import com.example.homework.model.Issue; +import com.example.homework.model.Student; +import com.example.homework.repository.AuthorRepository; +import com.example.homework.repository.BookRepository; +import com.example.homework.repository.IssueRepository; +import com.example.homework.repository.StudentRepository; +import org.springframework.stereotype.Service; + +import java.time.LocalDate; +import java.time.format.DateTimeFormatter; +import java.util.List; +import java.util.Optional; + +@Service +public class LibraryService { + + private final BookRepository bookRepo; + private final AuthorRepository authorRepo; + private final StudentRepository studentRepo; + private final IssueRepository issueRepo; + + public LibraryService(BookRepository bookRepo, AuthorRepository authorRepo, StudentRepository studentRepo, IssueRepository issueRepo) { + this.bookRepo = bookRepo; + this.authorRepo = authorRepo; + this.studentRepo = studentRepo; + this.issueRepo = issueRepo; + } + + private static final DateTimeFormatter FMT = DateTimeFormatter.ofPattern("yyyy-MM-dd"); + + + public Book addBook(String isbn, String title, String category, + int quantity, String authorName, String authorEmail) { + if (bookRepo.existsById(isbn)) { + throw new IllegalArgumentException("A book with ISBN " + isbn + " already exists."); + } + Book book = new Book(isbn, title, category, quantity); + bookRepo.save(book); + Author author = new Author(authorName, authorEmail, book); + authorRepo.save(author); + return book; + } + + public List searchByTitle(String title) { + return bookRepo.findByTitleContainingIgnoreCase(title); + } + + public List searchByCategory(String category) { + return bookRepo.findByCategoryIgnoreCase(category); + } + + public List searchByAuthor(String name) { + return authorRepo.findByNameContainingIgnoreCase(name); + } + + public List listAllBooksWithAuthors() { + return authorRepo.findAll(); + } + + public Issue issueBook(String usn, String studentName, String isbn) { + Optional bookOpt = bookRepo.findById(isbn); + if (bookOpt.isEmpty()) { + throw new IllegalArgumentException("No book found with ISBN: " + isbn); + } + Book book = bookOpt.get(); + if (book.getQuantity() <= 0) { + throw new IllegalStateException("No copies available for: " + book.getTitle()); + } + + Student student = studentRepo.findById(usn) + .orElse(new Student(usn, studentName)); + studentRepo.save(student); + + String today = LocalDate.now().format(FMT); + String returnDate = LocalDate.now().plusDays(7).format(FMT); + + book.setQuantity(book.getQuantity() - 1); + bookRepo.save(book); + + Issue issue = new Issue(today, returnDate, student, book); + return issueRepo.save(issue); + } + + public List listBooksByUsn(String usn) { + return issueRepo.findByIssueStudent_Usn(usn); + } + + public List listBooksReturnToday() { + String today = LocalDate.now().format(FMT); + return issueRepo.findByReturnDate(today); + } +} \ No newline at end of file diff --git a/homework/src/main/resources/application.properties b/homework/src/main/resources/application.properties new file mode 100644 index 00000000..d71590b5 --- /dev/null +++ b/homework/src/main/resources/application.properties @@ -0,0 +1,12 @@ +spring.application.name=homework + +# MySQL connection +spring.datasource.url=jdbc:mysql://127.0.0.1:3306/mydb +spring.datasource.username=root +spring.datasource.password=@Yusif200628711com@ +spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver + +# JPA/Hibernate settings +spring.jpa.hibernate.ddl-auto=update +spring.jpa.show-sql=true +spring.jpa.properties.hibernate.format_sql=true \ No newline at end of file diff --git a/homework/src/test/java/com/example/homework/HomeworkApplicationTests.java b/homework/src/test/java/com/example/homework/HomeworkApplicationTests.java new file mode 100644 index 00000000..e580d24e --- /dev/null +++ b/homework/src/test/java/com/example/homework/HomeworkApplicationTests.java @@ -0,0 +1,13 @@ +package com.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/com/example/homework/LibraryServiceTest.java b/homework/src/test/java/com/example/homework/LibraryServiceTest.java new file mode 100644 index 00000000..6546a23f --- /dev/null +++ b/homework/src/test/java/com/example/homework/LibraryServiceTest.java @@ -0,0 +1,107 @@ +package com.example.homework; + +import com.example.homework.model.Author; +import com.example.homework.model.Book; +import com.example.homework.model.Issue; +import com.example.homework.repository.BookRepository; +import com.example.homework.repository.IssueRepository; +import com.example.homework.service.LibraryService; +import org.junit.jupiter.api.*; +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.boot.test.context.SpringBootTest; + +import java.util.List; + +import static org.junit.jupiter.api.Assertions.*; + +@SpringBootTest +@TestMethodOrder(MethodOrderer.OrderAnnotation.class) +class LibraryServiceTest { + + @Autowired private LibraryService libraryService; + @Autowired private BookRepository bookRepo; + @Autowired private IssueRepository issueRepo; + + private static final String ISBN = "TEST-001"; + private static final String ISBN2 = "TEST-002"; + + @Test @Order(1) + void testAddBook() { + Book book = libraryService.addBook(ISBN, "Test Book", "Fiction", 5, + "Test Author", "test@test.com"); + assertNotNull(book); + assertEquals("Test Book", book.getTitle()); + assertEquals(5, book.getQuantity()); + } + + @Test @Order(2) + void testAddDuplicateBookThrows() { + assertThrows(IllegalArgumentException.class, () -> + libraryService.addBook(ISBN, "Duplicate", "Fiction", 3, + "Author", "a@a.com")); + } + + @Test @Order(3) + void testSearchByTitle() { + List results = libraryService.searchByTitle("Test"); + assertFalse(results.isEmpty()); + assertTrue(results.stream().anyMatch(b -> b.getIsbn().equals(ISBN))); + } + + @Test @Order(4) + void testSearchByCategory() { + List results = libraryService.searchByCategory("Fiction"); + assertFalse(results.isEmpty()); + } + + @Test @Order(5) + void testSearchByAuthor() { + List authors = libraryService.searchByAuthor("Test Author"); + assertFalse(authors.isEmpty()); + assertEquals(ISBN, authors.get(0).getAuthorBook().getIsbn()); + } + + @Test @Order(6) + void testIssueBook() { + Issue issue = libraryService.issueBook("USN001", "Jane Doe", ISBN); + assertNotNull(issue); + assertNotNull(issue.getReturnDate()); + + // Quantity should decrease + Book book = bookRepo.findById(ISBN).orElseThrow(); + assertEquals(4, book.getQuantity()); + } + + @Test @Order(7) + void testIssueBookNotFound() { + assertThrows(IllegalArgumentException.class, () -> + libraryService.issueBook("USN002", "Bob", "NONEXISTENT-ISBN")); + } + + @Test @Order(8) + void testIssueBookNoStock() { + libraryService.addBook(ISBN2, "Empty Book", "Drama", 0, + "No Stock Author", "ns@test.com"); + assertThrows(IllegalStateException.class, () -> + libraryService.issueBook("USN003", "Alice", ISBN2)); + } + + @Test @Order(9) + void testListBooksByUsn() { + List issues = libraryService.listBooksByUsn("USN001"); + assertFalse(issues.isEmpty()); + assertEquals("Jane Doe", issues.get(0).getIssueStudent().getName()); + } + + @Test @Order(10) + void testBookQuantityCannotBeNegative() { + Book b = new Book("X", "Y", "Z", 1); + assertThrows(IllegalArgumentException.class, () -> b.setQuantity(-1)); + } + + @Test @Order(11) + void testListAllBooksWithAuthors() { + List authors = libraryService.listAllBooksWithAuthors(); + assertFalse(authors.isEmpty()); + } +} From c155754a710a4c3343e01a6b3129dc070f198c5f Mon Sep 17 00:00:00 2001 From: Yusif Xankisiyev Date: Tue, 7 Apr 2026 23:36:58 +0400 Subject: [PATCH 2/2] . --- homework/src/main/resources/application.properties | 2 +- .../src/test/java/com/example/homework/LibraryServiceTest.java | 1 - 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/homework/src/main/resources/application.properties b/homework/src/main/resources/application.properties index d71590b5..4abe5982 100644 --- a/homework/src/main/resources/application.properties +++ b/homework/src/main/resources/application.properties @@ -3,7 +3,7 @@ spring.application.name=homework # MySQL connection spring.datasource.url=jdbc:mysql://127.0.0.1:3306/mydb spring.datasource.username=root -spring.datasource.password=@Yusif200628711com@ +spring.datasource.password=password spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver # JPA/Hibernate settings diff --git a/homework/src/test/java/com/example/homework/LibraryServiceTest.java b/homework/src/test/java/com/example/homework/LibraryServiceTest.java index 6546a23f..1a4b3206 100644 --- a/homework/src/test/java/com/example/homework/LibraryServiceTest.java +++ b/homework/src/test/java/com/example/homework/LibraryServiceTest.java @@ -67,7 +67,6 @@ void testIssueBook() { assertNotNull(issue); assertNotNull(issue.getReturnDate()); - // Quantity should decrease Book book = bookRepo.findById(ISBN).orElseThrow(); assertEquals(4, book.getQuantity()); }