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Added task06

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Julius Freudenberger 2023-05-04 17:32:00 +02:00
parent 70bc689ad5
commit faabcee9f5
21 changed files with 1032 additions and 0 deletions
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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/

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task06/.mvn/wrapper/maven-wrapper.jar vendored Normal file
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# 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
#
# https://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.
distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.7/apache-maven-3.8.7-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.1/maven-wrapper-3.1.1.jar

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# Getting Started
This task might seem familiar for you ;) The project contains everything to get started with a GraphQL service.
Don't worry if it shows errors. Try to run `maven compile`. It should fix those errors. Restarting IntelliJ
afterwards also helps.
Right now the project only provides a Hello World example for GraphQL.
# Task 06
Let's develop a simple blog service. It's possible to create, update and delete posts. Not every post is
published. You also need to provide a way to lock posts so that an author can edit them.
Users can comment posts. A post contains the text itself, a state and the author. It is also possible to get the total
count of comments for the post. A comment consist of the text and the user. Authors are also users. Users are managed by
this service. They have a username as well as a first name and last name.
1. Define your `*.graphqls` file
2. Generate all necessary files (`maven compile`)
3. Implement a simple server using the `GraphQLAPI`-Controller. You may use `BlogController` and the given methods.
4. Test your API using GraphiQL or using the integrated GraphQL-Client in your IDE

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#!/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
#
# https://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.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Maven Start Up Batch script
#
# Required ENV vars:
# ------------------
# JAVA_HOME - location of a JDK home dir
#
# Optional ENV vars
# -----------------
# M2_HOME - location of maven2's installed home dir
# MAVEN_OPTS - parameters passed to the Java VM when running Maven
# e.g. to debug Maven itself, use
# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
# MAVEN_SKIP_RC - flag to disable loading of mavenrc files
# ----------------------------------------------------------------------------
if [ -z "$MAVEN_SKIP_RC" ] ; then
if [ -f /usr/local/etc/mavenrc ] ; then
. /usr/local/etc/mavenrc
fi
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$HOME/.mavenrc" ] ; then
. "$HOME/.mavenrc"
fi
fi
# OS specific support. $var _must_ be set to either true or false.
cygwin=false;
darwin=false;
mingw=false
case "`uname`" in
CYGWIN*) cygwin=true ;;
MINGW*) mingw=true;;
Darwin*) darwin=true
# Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
# See https://developer.apple.com/library/mac/qa/qa1170/_index.html
if [ -z "$JAVA_HOME" ]; then
if [ -x "/usr/libexec/java_home" ]; then
export JAVA_HOME="`/usr/libexec/java_home`"
else
export JAVA_HOME="/Library/Java/Home"
fi
fi
;;
esac
if [ -z "$JAVA_HOME" ] ; then
if [ -r /etc/gentoo-release ] ; then
JAVA_HOME=`java-config --jre-home`
fi
fi
if [ -z "$M2_HOME" ] ; then
## resolve links - $0 may be a link to maven's home
PRG="$0"
# need this for relative symlinks
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG="`dirname "$PRG"`/$link"
fi
done
saveddir=`pwd`
M2_HOME=`dirname "$PRG"`/..
# make it fully qualified
M2_HOME=`cd "$M2_HOME" && pwd`
cd "$saveddir"
# echo Using m2 at $M2_HOME
fi
# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin ; then
[ -n "$M2_HOME" ] &&
M2_HOME=`cygpath --unix "$M2_HOME"`
[ -n "$JAVA_HOME" ] &&
JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
[ -n "$CLASSPATH" ] &&
CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
fi
# For Mingw, ensure paths are in UNIX format before anything is touched
if $mingw ; then
[ -n "$M2_HOME" ] &&
M2_HOME="`(cd "$M2_HOME"; pwd)`"
[ -n "$JAVA_HOME" ] &&
JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
fi
if [ -z "$JAVA_HOME" ]; then
javaExecutable="`which javac`"
if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
# readlink(1) is not available as standard on Solaris 10.
readLink=`which readlink`
if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
if $darwin ; then
javaHome="`dirname \"$javaExecutable\"`"
javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
else
javaExecutable="`readlink -f \"$javaExecutable\"`"
fi
javaHome="`dirname \"$javaExecutable\"`"
javaHome=`expr "$javaHome" : '\(.*\)/bin'`
JAVA_HOME="$javaHome"
export JAVA_HOME
fi
fi
fi
if [ -z "$JAVACMD" ] ; then
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="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
else
JAVACMD="`\\unset -f command; \\command -v java`"
fi
fi
if [ ! -x "$JAVACMD" ] ; then
echo "Error: JAVA_HOME is not defined correctly." >&2
echo " We cannot execute $JAVACMD" >&2
exit 1
fi
if [ -z "$JAVA_HOME" ] ; then
echo "Warning: JAVA_HOME environment variable is not set."
fi
CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
# traverses directory structure from process work directory to filesystem root
# first directory with .mvn subdirectory is considered project base directory
find_maven_basedir() {
if [ -z "$1" ]
then
echo "Path not specified to find_maven_basedir"
return 1
fi
basedir="$1"
wdir="$1"
while [ "$wdir" != '/' ] ; do
if [ -d "$wdir"/.mvn ] ; then
basedir=$wdir
break
fi
# workaround for JBEAP-8937 (on Solaris 10/Sparc)
if [ -d "${wdir}" ]; then
wdir=`cd "$wdir/.."; pwd`
fi
# end of workaround
done
echo "${basedir}"
}
# concatenates all lines of a file
concat_lines() {
if [ -f "$1" ]; then
echo "$(tr -s '\n' ' ' < "$1")"
fi
}
BASE_DIR=`find_maven_basedir "$(pwd)"`
if [ -z "$BASE_DIR" ]; then
exit 1;
fi
##########################################################################################
# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
# This allows using the maven wrapper in projects that prohibit checking in binary data.
##########################################################################################
if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found .mvn/wrapper/maven-wrapper.jar"
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
fi
if [ -n "$MVNW_REPOURL" ]; then
jarUrl="$MVNW_REPOURL/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
else
jarUrl="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
fi
while IFS="=" read key value; do
case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
esac
done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
if [ "$MVNW_VERBOSE" = true ]; then
echo "Downloading from: $jarUrl"
fi
wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
if $cygwin; then
wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
fi
if command -v wget > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found wget ... using wget"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
wget "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
else
wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath" || rm -f "$wrapperJarPath"
fi
elif command -v curl > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found curl ... using curl"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
curl -o "$wrapperJarPath" "$jarUrl" -f
else
curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Falling back to using Java to download"
fi
javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
# For Cygwin, switch paths to Windows format before running javac
if $cygwin; then
javaClass=`cygpath --path --windows "$javaClass"`
fi
if [ -e "$javaClass" ]; then
if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Compiling MavenWrapperDownloader.java ..."
fi
# Compiling the Java class
("$JAVA_HOME/bin/javac" "$javaClass")
fi
if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
# Running the downloader
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Running MavenWrapperDownloader.java ..."
fi
("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
fi
fi
fi
fi
##########################################################################################
# End of extension
##########################################################################################
export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
if [ "$MVNW_VERBOSE" = true ]; then
echo $MAVEN_PROJECTBASEDIR
fi
MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
# For Cygwin, switch paths to Windows format before running java
if $cygwin; then
[ -n "$M2_HOME" ] &&
M2_HOME=`cygpath --path --windows "$M2_HOME"`
[ -n "$JAVA_HOME" ] &&
JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
[ -n "$CLASSPATH" ] &&
CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
[ -n "$MAVEN_PROJECTBASEDIR" ] &&
MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
fi
# Provide a "standardized" way to retrieve the CLI args that will
# work with both Windows and non-Windows executions.
MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
export MAVEN_CMD_LINE_ARGS
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
exec "$JAVACMD" \
$MAVEN_OPTS \
$MAVEN_DEBUG_OPTS \
-classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
"-Dmaven.home=${M2_HOME}" \
"-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

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@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 https://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 Maven Start Up Batch script
@REM
@REM Required ENV vars:
@REM JAVA_HOME - location of a JDK home dir
@REM
@REM Optional ENV vars
@REM M2_HOME - location of maven2's installed home dir
@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
@REM e.g. to debug Maven itself, use
@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
@REM ----------------------------------------------------------------------------
@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
@echo off
@REM set title of command window
title %0
@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO%
@REM set %HOME% to equivalent of $HOME
if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
@REM Execute a user defined script before this one
if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
@REM check for pre script, once with legacy .bat ending and once with .cmd ending
if exist "%USERPROFILE%\mavenrc_pre.bat" call "%USERPROFILE%\mavenrc_pre.bat" %*
if exist "%USERPROFILE%\mavenrc_pre.cmd" call "%USERPROFILE%\mavenrc_pre.cmd" %*
:skipRcPre
@setlocal
set ERROR_CODE=0
@REM To isolate internal variables from possible post scripts, we use another setlocal
@setlocal
@REM ==== START VALIDATION ====
if not "%JAVA_HOME%" == "" goto OkJHome
echo.
echo Error: JAVA_HOME not found in your environment. >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error
:OkJHome
if exist "%JAVA_HOME%\bin\java.exe" goto init
echo.
echo Error: JAVA_HOME is set to an invalid directory. >&2
echo JAVA_HOME = "%JAVA_HOME%" >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error
@REM ==== END VALIDATION ====
:init
@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
@REM Fallback to current working directory if not found.
set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
set EXEC_DIR=%CD%
set WDIR=%EXEC_DIR%
:findBaseDir
IF EXIST "%WDIR%"\.mvn goto baseDirFound
cd ..
IF "%WDIR%"=="%CD%" goto baseDirNotFound
set WDIR=%CD%
goto findBaseDir
:baseDirFound
set MAVEN_PROJECTBASEDIR=%WDIR%
cd "%EXEC_DIR%"
goto endDetectBaseDir
:baseDirNotFound
set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
cd "%EXEC_DIR%"
:endDetectBaseDir
IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
@setlocal EnableExtensions EnableDelayedExpansion
for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
:endReadAdditionalConfig
SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
FOR /F "usebackq tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
)
@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
if exist %WRAPPER_JAR% (
if "%MVNW_VERBOSE%" == "true" (
echo Found %WRAPPER_JAR%
)
) else (
if not "%MVNW_REPOURL%" == "" (
SET DOWNLOAD_URL="%MVNW_REPOURL%/org/apache/maven/wrapper/maven-wrapper/3.1.0/maven-wrapper-3.1.0.jar"
)
if "%MVNW_VERBOSE%" == "true" (
echo Couldn't find %WRAPPER_JAR%, downloading it ...
echo Downloading from: %DOWNLOAD_URL%
)
powershell -Command "&{"^
"$webclient = new-object System.Net.WebClient;"^
"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
"}"^
"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
"}"
if "%MVNW_VERBOSE%" == "true" (
echo Finished downloading %WRAPPER_JAR%
)
)
@REM End of extension
@REM Provide a "standardized" way to retrieve the CLI args that will
@REM work with both Windows and non-Windows executions.
set MAVEN_CMD_LINE_ARGS=%*
%MAVEN_JAVA_EXE% ^
%JVM_CONFIG_MAVEN_PROPS% ^
%MAVEN_OPTS% ^
%MAVEN_DEBUG_OPTS% ^
-classpath %WRAPPER_JAR% ^
"-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" ^
%WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
if ERRORLEVEL 1 goto error
goto end
:error
set ERROR_CODE=1
:end
@endlocal & set ERROR_CODE=%ERROR_CODE%
if not "%MAVEN_SKIP_RC%"=="" goto skipRcPost
@REM check for post script, once with legacy .bat ending and once with .cmd ending
if exist "%USERPROFILE%\mavenrc_post.bat" call "%USERPROFILE%\mavenrc_post.bat"
if exist "%USERPROFILE%\mavenrc_post.cmd" call "%USERPROFILE%\mavenrc_post.cmd"
:skipRcPost
@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
if "%MAVEN_BATCH_PAUSE%"=="on" pause
if "%MAVEN_TERMINATE_CMD%"=="on" exit %ERROR_CODE%
cmd /C exit /B %ERROR_CODE%

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.0.6</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>de.hftstuttgart.vs</groupId>
<artifactId>task06</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>task06</name>
<description>task06</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-graphql</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.graphql</groupId>
<artifactId>spring-graphql-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>io.github.kobylynskyi</groupId>
<artifactId>graphql-codegen-maven-plugin</artifactId>
<version>5.7.2</version>
<executions>
<execution>
<goals>
<goal>generate</goal>
</goals>
<configuration>
<!-- all config options:
https://github.com/kobylynskyi/graphql-java-codegen/blob/main/docs/codegen-options.md
-->
<graphqlSchemas>
<includePattern>schema\.graphqls</includePattern>
</graphqlSchemas>
<outputDir>${project.build.directory}/generated-sources/graphql</outputDir>
<packageName>de.hftstuttgart.vs.task06.graphql.model</packageName>
<customTypesMapping>
<DateTime>java.util.Date</DateTime>
</customTypesMapping>
<modelNameSuffix>DO</modelNameSuffix>
<modelValidationAnnotation>@jakarta.annotation.Nonnull</modelValidationAnnotation>
<generatedAnnotation>jakarta.annotation.Generated</generatedAnnotation>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>

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package de.hftstuttgart.vs.task06;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class Task06Application {
public static void main(String[] args) {
SpringApplication.run(Task06Application.class, args);
}
}

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package de.hftstuttgart.vs.task06.bm;
import de.hftstuttgart.vs.task06.bm.exceptions.PostNotFound;
import de.hftstuttgart.vs.task06.bm.exceptions.UserNotFound;
import de.hftstuttgart.vs.task06.bm.model.Comment;
import de.hftstuttgart.vs.task06.bm.model.Post;
import de.hftstuttgart.vs.task06.bm.model.PostState;
import de.hftstuttgart.vs.task06.bm.model.User;
import org.springframework.stereotype.Service;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@Service
public class BlogController implements UserRepository, PostRepository {
private final Map<String, User> users;
private final Map<Integer, Post> posts;
public BlogController() {
users = new HashMap<>();
users.put("mmustermann", new User("mmustermann", "Max", "Mustermann"));
users.put("jdoe", new User("jdoe", "John", "Doe"));
posts = new HashMap<>();
}
@Override
public List<Post> getPosts() {
return posts.values().stream().toList();
}
@Override
public Post editPost(final int postID, final Post post) throws PostNotFound {
if (!posts.containsKey(postID)) {
throw new PostNotFound();
}
posts.put(postID, post);
return post;
}
@Override
public Post changePostState(final int postID, final PostState state) throws PostNotFound {
if (!posts.containsKey(postID)) {
throw new PostNotFound();
}
final var post = posts.get(postID);
post.setState(state);
return post;
}
@Override
public Comment addComment(final int postID, final String userName, final String commentText) throws PostNotFound {
if (!posts.containsKey(postID)) {
throw new PostNotFound();
}
final var post = posts.get(postID);
final var comment = new Comment(commentText, userName);
post.addComment(comment);
return comment;
}
@Override
public List<User> getUsers() {
return users.values().stream().toList();
}
@Override
public User getUser(final String userName) throws UserNotFound {
final var user = users.get(userName);
if (user == null) {
throw new UserNotFound();
}
return user;
}
public int getCommentCount(final int postID) {
throw new RuntimeException("NOT IMPLEMENTED");
//TODO 3: implement method counting the comments for a post
}
}

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task06/src/main/java/de/hftstuttgart/vs/task06/bm/PostRepository.java Normal file
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package de.hftstuttgart.vs.task06.bm;
import de.hftstuttgart.vs.task06.bm.exceptions.PostNotFound;
import de.hftstuttgart.vs.task06.bm.model.Comment;
import de.hftstuttgart.vs.task06.bm.model.Post;
import de.hftstuttgart.vs.task06.bm.model.PostState;
import java.util.List;
public interface PostRepository {
List<Post> getPosts();
Post editPost(int postID, Post post) throws PostNotFound;
Post changePostState(int postID, PostState state) throws PostNotFound;
Comment addComment(int postID, String userName, String comment) throws PostNotFound;
}

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task06/src/main/java/de/hftstuttgart/vs/task06/bm/UserRepository.java Normal file
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package de.hftstuttgart.vs.task06.bm;
import de.hftstuttgart.vs.task06.bm.exceptions.UserNotFound;
import de.hftstuttgart.vs.task06.bm.model.User;
import java.util.List;
public interface UserRepository {
List<User> getUsers();
User getUser(String userName) throws UserNotFound;
}

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task06/src/main/java/de/hftstuttgart/vs/task06/bm/exceptions/PostNotFound.java Normal file
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package de.hftstuttgart.vs.task06.bm.exceptions;
public class PostNotFound extends Exception {
}

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task06/src/main/java/de/hftstuttgart/vs/task06/bm/exceptions/UserNotFound.java Normal file
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package de.hftstuttgart.vs.task06.bm.exceptions;
public class UserNotFound extends Exception {
}

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task06/src/main/java/de/hftstuttgart/vs/task06/bm/model/Comment.java Normal file
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package de.hftstuttgart.vs.task06.bm.model;
import java.util.Objects;
public final class Comment {
private String text;
private String userName;
public Comment(final String text, final String userName) {
this.text = text;
this.userName = userName;
}
public String getText() {
return text;
}
public void setText(final String text) {
this.text = text;
}
public String getUserName() {
return userName;
}
public void setUserName(final String userName) {
this.userName = userName;
}
@Override
public boolean equals(final Object obj) {
if (obj == this) return true;
if (obj == null || obj.getClass() != this.getClass()) return false;
final var that = (Comment) obj;
return Objects.equals(this.text, that.text) &&
Objects.equals(this.userName, that.userName);
}
@Override
public int hashCode() {
return Objects.hash(text, userName);
}
@Override
public String toString() {
return "Comment[" +
"text=" + text + ", " +
"userName=" + userName + ']';
}
}

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package de.hftstuttgart.vs.task06.bm.model;
import java.util.List;
import java.util.Objects;
//TODO How is the state of a post?
public final class Post {
private final String userName;
private final List<Comment> comments;
private String text;
private PostState state;
public Post(final String text, final PostState state, final String userName, final List<Comment> comments) {
this.text = text;
this.state = state;
this.userName = userName;
this.comments = comments;
}
public String getText() {
return text;
}
public void setText(final String text) {
this.text = text;
}
public PostState getState() {
return state;
}
public void setState(final PostState state) {
this.state = state;
}
public String getUserName() {
return userName;
}
public List<Comment> getComments() {
return comments;
}
public void addComment(final Comment comment) {
comments.add(comment);
}
@Override
public boolean equals(final Object obj) {
if (obj == this) return true;
if (obj == null || obj.getClass() != this.getClass()) return false;
final var that = (Post) obj;
return Objects.equals(this.text, that.text) &&
Objects.equals(this.state, that.state) && Objects.equals(this.userName, that.userName) &&
Objects.equals(this.comments, that.comments);
}
@Override
public int hashCode() {
return Objects.hash(text, state, userName, comments);
}
@Override
public String toString() {
return "Post[" + "text=" + text + ", " + "state=" + state + ", " + "userName=" +
userName + ", " + "comments=" + comments + ']';
}
}

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task06/src/main/java/de/hftstuttgart/vs/task06/bm/model/PostState.java Normal file
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package de.hftstuttgart.vs.task06.bm.model;
public enum PostState {
PUBLISHED, UNPUBLISHED, LOCKED
}

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package de.hftstuttgart.vs.task06.bm.model;
import java.util.Objects;
public final class User {
private final String userName;
private String firstName;
private String lastName;
public User(final String userName, final String firstName, final String lastName) {
this.userName = userName;
this.firstName = firstName;
this.lastName = lastName;
}
public String getUserName() {
return userName;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(final String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(final String lastName) {
this.lastName = lastName;
}
@Override
public boolean equals(final Object obj) {
if (obj == this) return true;
if (obj == null || obj.getClass() != this.getClass()) return false;
final var that = (User) obj;
return Objects.equals(this.userName, that.userName) &&
Objects.equals(this.firstName, that.firstName) &&
Objects.equals(this.lastName, that.lastName);
}
@Override
public int hashCode() {
return Objects.hash(userName, firstName, lastName);
}
@Override
public String toString() {
return "User[" +
"userName=" + userName + ", " +
"firstName=" + firstName + ", " +
"lastName=" + lastName + ']';
}
}

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task06/src/main/java/de/hftstuttgart/vs/task06/graphql/GraphQLAPI.java Normal file
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package de.hftstuttgart.vs.task06.graphql;
import de.hftstuttgart.vs.task06.bm.BlogController;
import de.hftstuttgart.vs.task06.graphql.model.HelloWorldDO;
import de.hftstuttgart.vs.task06.graphql.model.QueryResolver;
import jakarta.annotation.Nonnull;
import org.springframework.graphql.data.method.annotation.QueryMapping;
import org.springframework.graphql.data.method.annotation.SchemaMapping;
import org.springframework.stereotype.Controller;
@Controller
public class GraphQLAPI implements QueryResolver {
private final BlogController blogController;
public GraphQLAPI(final BlogController blogController) {
this.blogController = blogController;
}
@Nonnull
@Override
@QueryMapping
public HelloWorldDO helloWorld() {
return new HelloWorldDO();
}
@SchemaMapping
public String message(final HelloWorldDO helloWorld) {
return "Hello World!";
}
//TODO 2: Add mappings for queries and mutations defined in your schema
//TODO 4: Add field mapping for count of comments for a post
}

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spring.graphql.graphiql.enabled=true

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type Query {
helloWorld: HelloWorld!
}
type HelloWorld {
message: String
}
# TODO 1: Add type definitions for the blog service

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task06/src/test/java/de/hftstuttgart/vs/task06/Task06ApplicationTests.java Normal file
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package de.hftstuttgart.vs.task06;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class Task06ApplicationTests {
@Test
void contextLoads() {
}
}