diff --git a/consumer/.gitattributes b/consumer/.gitattributes new file mode 100644 index 0000000..8af972c --- /dev/null +++ b/consumer/.gitattributes @@ -0,0 +1,3 @@ +/gradlew text eol=lf +*.bat text eol=crlf +*.jar binary diff --git a/consumer/.gitignore b/consumer/.gitignore new file mode 100644 index 0000000..c2065bc --- /dev/null +++ b/consumer/.gitignore @@ -0,0 +1,37 @@ +HELP.md +.gradle +build/ +!gradle/wrapper/gradle-wrapper.jar +!**/src/main/**/build/ +!**/src/test/**/build/ + +### STS ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache +bin/ +!**/src/main/**/bin/ +!**/src/test/**/bin/ + +### IntelliJ IDEA ### +.idea +*.iws +*.iml +*.ipr +out/ +!**/src/main/**/out/ +!**/src/test/**/out/ + +### NetBeans ### +/nbproject/private/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ + +### VS Code ### +.vscode/ diff --git a/build.gradle.kts b/consumer/build.gradle.kts similarity index 56% rename from build.gradle.kts rename to consumer/build.gradle.kts index fc5abdc..2409384 100644 --- a/build.gradle.kts +++ b/consumer/build.gradle.kts @@ -1,10 +1,10 @@ plugins { java - id("org.springframework.boot") version "3.4.3" + id("org.springframework.boot") version "3.4.5" id("io.spring.dependency-management") version "1.1.7" } -group = "org" +group = "org.javaspringcourse" version = "0.0.1-SNAPSHOT" java { @@ -19,7 +19,12 @@ repositories { dependencies { implementation("org.springframework.boot:spring-boot-starter") + implementation("org.springframework.boot:spring-boot-starter-web") + implementation("org.springframework.kafka:spring-kafka") + compileOnly("org.projectlombok:lombok") + annotationProcessor("org.projectlombok:lombok") testImplementation("org.springframework.boot:spring-boot-starter-test") + testImplementation("org.springframework.kafka:spring-kafka-test") testRuntimeOnly("org.junit.platform:junit-platform-launcher") } diff --git a/consumer/gradle/wrapper/gradle-wrapper.jar b/consumer/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..9bbc975 Binary files /dev/null and b/consumer/gradle/wrapper/gradle-wrapper.jar differ diff --git a/gradle/wrapper/gradle-wrapper.properties b/consumer/gradle/wrapper/gradle-wrapper.properties similarity index 93% rename from gradle/wrapper/gradle-wrapper.properties rename to consumer/gradle/wrapper/gradle-wrapper.properties index e18bc25..37f853b 100644 --- a/gradle/wrapper/gradle-wrapper.properties +++ b/consumer/gradle/wrapper/gradle-wrapper.properties @@ -1,6 +1,6 @@ distributionBase=GRADLE_USER_HOME distributionPath=wrapper/dists -distributionUrl=https\://services.gradle.org/distributions/gradle-8.12.1-bin.zip +distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip networkTimeout=10000 validateDistributionUrl=true zipStoreBase=GRADLE_USER_HOME diff --git a/gradlew b/consumer/gradlew similarity index 97% rename from gradlew rename to consumer/gradlew index f5feea6..faf9300 100644 --- a/gradlew +++ b/consumer/gradlew @@ -86,8 +86,7 @@ done # shellcheck disable=SC2034 APP_BASE_NAME=${0##*/} # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036) -APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s -' "$PWD" ) || exit +APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit # Use the maximum available, or set MAX_FD != -1 to use that value. MAX_FD=maximum @@ -206,7 +205,7 @@ fi DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' # Collect all arguments for the java command: -# * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments, +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments, # and any embedded shellness will be escaped. # * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be # treated as '${Hostname}' itself on the command line. diff --git a/gradlew.bat b/consumer/gradlew.bat similarity index 100% rename from gradlew.bat rename to consumer/gradlew.bat diff --git a/consumer/settings.gradle.kts b/consumer/settings.gradle.kts new file mode 100644 index 0000000..ce1ccb1 --- /dev/null +++ b/consumer/settings.gradle.kts @@ -0,0 +1 @@ +rootProject.name = "consumer" diff --git a/src/main/java/org/javaspringcourse/JavaSpringCourseApplication.java b/consumer/src/main/java/org/javaspringcourse/consumer/ConsumerApplication.java similarity index 58% rename from src/main/java/org/javaspringcourse/JavaSpringCourseApplication.java rename to consumer/src/main/java/org/javaspringcourse/consumer/ConsumerApplication.java index 20d1820..8284c7d 100644 --- a/src/main/java/org/javaspringcourse/JavaSpringCourseApplication.java +++ b/consumer/src/main/java/org/javaspringcourse/consumer/ConsumerApplication.java @@ -1,13 +1,13 @@ -package org.javaspringcourse; +package org.javaspringcourse.consumer; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication -public class JavaSpringCourseApplication { +public class ConsumerApplication { public static void main(String[] args) { - SpringApplication.run(JavaSpringCourseApplication.class, args); + SpringApplication.run(ConsumerApplication.class, args); } } diff --git a/consumer/src/main/java/org/javaspringcourse/consumer/config/KafkaConfig.java b/consumer/src/main/java/org/javaspringcourse/consumer/config/KafkaConfig.java new file mode 100644 index 0000000..3dd280f --- /dev/null +++ b/consumer/src/main/java/org/javaspringcourse/consumer/config/KafkaConfig.java @@ -0,0 +1,52 @@ +package org.javaspringcourse.consumer.config; + +import com.fasterxml.jackson.databind.ObjectMapper; +import lombok.RequiredArgsConstructor; +import org.apache.kafka.common.serialization.StringDeserializer; +import org.javaspringcourse.consumer.dto.MessageDto; +import org.springframework.boot.autoconfigure.kafka.KafkaProperties; +import org.springframework.context.annotation.Bean; +import org.springframework.context.annotation.Configuration; +import org.springframework.kafka.annotation.EnableKafka; +import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory; +import org.springframework.kafka.core.DefaultKafkaConsumerFactory; +import org.springframework.kafka.listener.CommonLoggingErrorHandler; +import org.springframework.kafka.support.serializer.ErrorHandlingDeserializer; +import org.springframework.kafka.support.serializer.JsonDeserializer; + +@Configuration +@EnableKafka +@RequiredArgsConstructor +public class KafkaConfig { + public static final String CONSUMER_LISTENER_CONTAINER_FACTORY = "consumerListenerContainerFactory"; + + private final KafkaProperties kafkaProperties; + private final ObjectMapper objectMapper; + + @Bean(CONSUMER_LISTENER_CONTAINER_FACTORY) + public ConcurrentKafkaListenerContainerFactory consumerListenerContainerFactory() { + return buildListenerContainerFactory(MessageDto.class); + } + + ConcurrentKafkaListenerContainerFactory buildListenerContainerFactory(Class clazz) { + var consumerFactory = new DefaultKafkaConsumerFactory<>( + kafkaProperties.buildConsumerProperties(), + new StringDeserializer(), + new ErrorHandlingDeserializer<>( + new JsonDeserializer<>( + clazz, objectMapper, false + ) + ) + ); + + var listenerContainerFactory = new ConcurrentKafkaListenerContainerFactory(); + listenerContainerFactory.setConsumerFactory(consumerFactory); + listenerContainerFactory.setCommonErrorHandler(commonLoggingErrorHandler()); + return listenerContainerFactory; + } + + @Bean + public CommonLoggingErrorHandler commonLoggingErrorHandler() { // только логирование ошибки + return new CommonLoggingErrorHandler(); + } +} diff --git a/consumer/src/main/java/org/javaspringcourse/consumer/dto/MessageDto.java b/consumer/src/main/java/org/javaspringcourse/consumer/dto/MessageDto.java new file mode 100644 index 0000000..e2d8a9e --- /dev/null +++ b/consumer/src/main/java/org/javaspringcourse/consumer/dto/MessageDto.java @@ -0,0 +1,4 @@ +package org.javaspringcourse.consumer.dto; + +public record MessageDto(String message) { +} diff --git a/consumer/src/main/java/org/javaspringcourse/consumer/listener/MessageListener.java b/consumer/src/main/java/org/javaspringcourse/consumer/listener/MessageListener.java new file mode 100644 index 0000000..8c63e1f --- /dev/null +++ b/consumer/src/main/java/org/javaspringcourse/consumer/listener/MessageListener.java @@ -0,0 +1,22 @@ +package org.javaspringcourse.consumer.listener; + +import lombok.extern.log4j.Log4j2; +import org.javaspringcourse.consumer.config.KafkaConfig; +import org.javaspringcourse.consumer.dto.MessageDto; +import org.springframework.kafka.annotation.KafkaListener; +import org.springframework.messaging.handler.annotation.Payload; +import org.springframework.stereotype.Component; + +@Log4j2 +@Component +public class MessageListener { + + @KafkaListener( + containerFactory = KafkaConfig.CONSUMER_LISTENER_CONTAINER_FACTORY, + topics = "${javaspringcourse.kafka.message.topic}", + groupId = "${javaspringcourse.kafka.message.groupId}" + ) + public void receiveMessage(@Payload MessageDto message) { + log.info("Received message: {}", message.message()); + } +} diff --git a/consumer/src/main/resources/application.yaml b/consumer/src/main/resources/application.yaml new file mode 100644 index 0000000..f602802 --- /dev/null +++ b/consumer/src/main/resources/application.yaml @@ -0,0 +1,12 @@ +server: + port: 8082 + +spring: + kafka: + bootstrap-servers: [localhost:9092] + +javaspringcourse: + kafka: + message: + topic: "message.incoming" + groupId: "message.incoming.id" \ No newline at end of file diff --git a/src/test/java/org/javaspringcourse/JavaSpringCourseApplicationTests.java b/consumer/src/test/java/org/javaspringcourse/consumer/ConsumerApplicationTests.java similarity index 67% rename from src/test/java/org/javaspringcourse/JavaSpringCourseApplicationTests.java rename to consumer/src/test/java/org/javaspringcourse/consumer/ConsumerApplicationTests.java index 286cde5..9a426b0 100644 --- a/src/test/java/org/javaspringcourse/JavaSpringCourseApplicationTests.java +++ b/consumer/src/test/java/org/javaspringcourse/consumer/ConsumerApplicationTests.java @@ -1,10 +1,10 @@ -package org.javaspringcourse; +package org.javaspringcourse.consumer; import org.junit.jupiter.api.Test; import org.springframework.boot.test.context.SpringBootTest; @SpringBootTest -class JavaSpringCourseApplicationTests { +class ConsumerApplicationTests { @Test void contextLoads() { diff --git a/docker-compose.yml b/docker-compose.yml new file mode 100644 index 0000000..fcbbd96 --- /dev/null +++ b/docker-compose.yml @@ -0,0 +1,33 @@ +name: java-spring-course + +services: + kafka: + image: apache/kafka:latest + environment: + KAFKA_NODE_ID: 1 + KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: 'CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT' + KAFKA_ADVERTISED_LISTENERS: 'PLAINTEXT_HOST://localhost:9092,PLAINTEXT://kafka:19092' + KAFKA_PROCESS_ROLES: 'broker,controller' + KAFKA_CONTROLLER_QUORUM_VOTERS: '1@kafka:29093' + KAFKA_LISTENERS: 'CONTROLLER://:29093,PLAINTEXT_HOST://:9092,PLAINTEXT://:19092' + KAFKA_CONTROLLER_LISTENER_NAMES: 'CONTROLLER' + CLUSTER_ID: '4L6g3nShT-eMCtK--X86sw' + KAFKA_LOG_DIRS: '/tmp/kraft-combined-logs' + KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1 + ports: + - '9092:9092' + networks: + - common + + kafka-ui: + image: provectuslabs/kafka-ui:latest + environment: + KAFKA_CLUSTERS_0_NAME: 'cluster-0' + KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: 'kafka:19092' + ports: + - '8081:8080' + networks: + - common + +networks: + common: \ No newline at end of file diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar deleted file mode 100644 index a4b76b9..0000000 Binary files a/gradle/wrapper/gradle-wrapper.jar and /dev/null differ diff --git a/producer/.gitattributes b/producer/.gitattributes new file mode 100644 index 0000000..8af972c --- /dev/null +++ b/producer/.gitattributes @@ -0,0 +1,3 @@ +/gradlew text eol=lf +*.bat text eol=crlf +*.jar binary diff --git a/producer/.gitignore b/producer/.gitignore new file mode 100644 index 0000000..c2065bc --- /dev/null +++ b/producer/.gitignore @@ -0,0 +1,37 @@ +HELP.md +.gradle +build/ +!gradle/wrapper/gradle-wrapper.jar +!**/src/main/**/build/ +!**/src/test/**/build/ + +### STS ### +.apt_generated +.classpath +.factorypath +.project +.settings +.springBeans +.sts4-cache +bin/ +!**/src/main/**/bin/ +!**/src/test/**/bin/ + +### IntelliJ IDEA ### +.idea +*.iws +*.iml +*.ipr +out/ +!**/src/main/**/out/ +!**/src/test/**/out/ + +### NetBeans ### +/nbproject/private/ +/nbbuild/ +/dist/ +/nbdist/ +/.nb-gradle/ + +### VS Code ### +.vscode/ diff --git a/producer/build.gradle.kts b/producer/build.gradle.kts new file mode 100644 index 0000000..d243c0b --- /dev/null +++ b/producer/build.gradle.kts @@ -0,0 +1,33 @@ +plugins { + java + id("org.springframework.boot") version "3.4.5" + id("io.spring.dependency-management") version "1.1.7" +} + +group = "org.javaspringcourse" +version = "0.0.1-SNAPSHOT" + +java { + toolchain { + languageVersion = JavaLanguageVersion.of(23) + } +} + +repositories { + mavenCentral() +} + +dependencies { + implementation("org.springframework.boot:spring-boot-starter") + implementation("org.springframework.kafka:spring-kafka") + implementation("org.springframework.boot:spring-boot-starter-web") + compileOnly("org.projectlombok:lombok") + annotationProcessor("org.projectlombok:lombok") + testImplementation("org.springframework.boot:spring-boot-starter-test") + testImplementation("org.springframework.kafka:spring-kafka-test") + testRuntimeOnly("org.junit.platform:junit-platform-launcher") +} + +tasks.withType { + useJUnitPlatform() +} diff --git a/producer/gradle/wrapper/gradle-wrapper.jar b/producer/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000..9bbc975 Binary files /dev/null and b/producer/gradle/wrapper/gradle-wrapper.jar differ diff --git a/producer/gradle/wrapper/gradle-wrapper.properties b/producer/gradle/wrapper/gradle-wrapper.properties new file mode 100644 index 0000000..37f853b --- /dev/null +++ b/producer/gradle/wrapper/gradle-wrapper.properties @@ -0,0 +1,7 @@ +distributionBase=GRADLE_USER_HOME +distributionPath=wrapper/dists +distributionUrl=https\://services.gradle.org/distributions/gradle-8.13-bin.zip +networkTimeout=10000 +validateDistributionUrl=true +zipStoreBase=GRADLE_USER_HOME +zipStorePath=wrapper/dists diff --git a/producer/gradlew b/producer/gradlew new file mode 100644 index 0000000..faf9300 --- /dev/null +++ b/producer/gradlew @@ -0,0 +1,251 @@ +#!/bin/sh + +# +# Copyright © 2015-2021 the original authors. +# +# Licensed 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. +# +# SPDX-License-Identifier: Apache-2.0 +# + +############################################################################## +# +# Gradle start up script for POSIX generated by Gradle. +# +# Important for running: +# +# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +# This is normally unused +# shellcheck disable=SC2034 +APP_BASE_NAME=${0##*/} +# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036) +APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | MINGW* ) msys=true ;; #( + NONSTOP* ) nonstop=true ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + + +# Determine the Java command to use to start the JVM. +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 + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD=java + if ! command -v java >/dev/null 2>&1 + then + die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +fi + +# Increase the maximum file descriptors if we can. +if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC2039,SC3045 + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC2039,SC3045 + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Collect all arguments for the java command: +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments, +# and any embedded shellness will be escaped. +# * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be +# treated as '${Hostname}' itself on the command line. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -classpath "$CLASSPATH" \ + org.gradle.wrapper.GradleWrapperMain \ + "$@" + +# Stop when "xargs" is not available. +if ! command -v xargs >/dev/null 2>&1 +then + die "xargs is not available" +fi + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/producer/gradlew.bat b/producer/gradlew.bat new file mode 100644 index 0000000..9d21a21 --- /dev/null +++ b/producer/gradlew.bat @@ -0,0 +1,94 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem 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, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem +@rem SPDX-License-Identifier: Apache-2.0 +@rem + +@if "%DEBUG%"=="" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%"=="" set DIRNAME=. +@rem This is normally unused +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Resolve any "." and ".." in APP_HOME to make it shorter. +for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if %ERRORLEVEL% equ 0 goto execute + +echo. 1>&2 +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2 +echo. 1>&2 +echo Please set the JAVA_HOME variable in your environment to match the 1>&2 +echo location of your Java installation. 1>&2 + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto execute + +echo. 1>&2 +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2 +echo. 1>&2 +echo Please set the JAVA_HOME variable in your environment to match the 1>&2 +echo location of your Java installation. 1>&2 + +goto fail + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* + +:end +@rem End local scope for the variables with windows NT shell +if %ERRORLEVEL% equ 0 goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +set EXIT_CODE=%ERRORLEVEL% +if %EXIT_CODE% equ 0 set EXIT_CODE=1 +if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE% +exit /b %EXIT_CODE% + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/producer/settings.gradle.kts b/producer/settings.gradle.kts new file mode 100644 index 0000000..63d04d1 --- /dev/null +++ b/producer/settings.gradle.kts @@ -0,0 +1 @@ +rootProject.name = "producer" diff --git a/producer/src/main/java/org/javaspringcourse/producer/ProducerApplication.java b/producer/src/main/java/org/javaspringcourse/producer/ProducerApplication.java new file mode 100644 index 0000000..ad5a14a --- /dev/null +++ b/producer/src/main/java/org/javaspringcourse/producer/ProducerApplication.java @@ -0,0 +1,13 @@ +package org.javaspringcourse.producer; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; + +@SpringBootApplication +public class ProducerApplication { + + public static void main(String[] args) { + SpringApplication.run(ProducerApplication.class, args); + } + +} diff --git a/producer/src/main/java/org/javaspringcourse/producer/config/KafkaConfig.java b/producer/src/main/java/org/javaspringcourse/producer/config/KafkaConfig.java new file mode 100644 index 0000000..30755f5 --- /dev/null +++ b/producer/src/main/java/org/javaspringcourse/producer/config/KafkaConfig.java @@ -0,0 +1,21 @@ +package org.javaspringcourse.producer.config; + +import com.fasterxml.jackson.databind.ObjectMapper; +import lombok.RequiredArgsConstructor; +import org.springframework.boot.autoconfigure.kafka.DefaultKafkaProducerFactoryCustomizer; +import org.springframework.context.annotation.Bean; +import org.springframework.context.annotation.Configuration; +import org.springframework.kafka.annotation.EnableKafka; +import org.springframework.kafka.support.serializer.JsonSerializer; + +@Configuration +@EnableKafka +@RequiredArgsConstructor +public class KafkaConfig { + private final ObjectMapper objectMapper; + + @Bean + public DefaultKafkaProducerFactoryCustomizer producerFactory() { + return (factory) -> factory.setValueSerializer(new JsonSerializer<>(objectMapper)); + } +} diff --git a/producer/src/main/java/org/javaspringcourse/producer/controller/MessageController.java b/producer/src/main/java/org/javaspringcourse/producer/controller/MessageController.java new file mode 100644 index 0000000..e371345 --- /dev/null +++ b/producer/src/main/java/org/javaspringcourse/producer/controller/MessageController.java @@ -0,0 +1,21 @@ +package org.javaspringcourse.producer.controller; + +import lombok.RequiredArgsConstructor; +import org.javaspringcourse.producer.dto.MessageDto; +import org.javaspringcourse.producer.service.MessageService; +import org.springframework.web.bind.annotation.PostMapping; +import org.springframework.web.bind.annotation.RequestBody; +import org.springframework.web.bind.annotation.RequestMapping; +import org.springframework.web.bind.annotation.RestController; + +@RestController +@RequestMapping("/message") +@RequiredArgsConstructor +public class MessageController { + private final MessageService messageService; + + @PostMapping("/send") + public void sendMessage(@RequestBody MessageDto message) { + messageService.sendMessage(message); + } +} diff --git a/producer/src/main/java/org/javaspringcourse/producer/dto/MessageDto.java b/producer/src/main/java/org/javaspringcourse/producer/dto/MessageDto.java new file mode 100644 index 0000000..6361d80 --- /dev/null +++ b/producer/src/main/java/org/javaspringcourse/producer/dto/MessageDto.java @@ -0,0 +1,4 @@ +package org.javaspringcourse.producer.dto; + +public record MessageDto(String message) { +} diff --git a/producer/src/main/java/org/javaspringcourse/producer/service/MessageService.java b/producer/src/main/java/org/javaspringcourse/producer/service/MessageService.java new file mode 100644 index 0000000..2a36df1 --- /dev/null +++ b/producer/src/main/java/org/javaspringcourse/producer/service/MessageService.java @@ -0,0 +1,22 @@ +package org.javaspringcourse.producer.service; + +import lombok.RequiredArgsConstructor; +import lombok.extern.log4j.Log4j2; +import org.javaspringcourse.producer.dto.MessageDto; +import org.springframework.beans.factory.annotation.Value; +import org.springframework.kafka.core.KafkaTemplate; +import org.springframework.stereotype.Service; + +@Log4j2 +@Service +@RequiredArgsConstructor +public class MessageService { + @Value("${javaspringcourse.kafka.message.topic}") + private String messageTopic; + + private final KafkaTemplate kafkaTemplate; + + public void sendMessage(MessageDto message) { + kafkaTemplate.send(messageTopic, message); + } +} diff --git a/producer/src/main/resources/application.yaml b/producer/src/main/resources/application.yaml new file mode 100644 index 0000000..a4e2f79 --- /dev/null +++ b/producer/src/main/resources/application.yaml @@ -0,0 +1,11 @@ +server: + port: 8080 + +spring: + kafka: + bootstrap-servers: [localhost:9092] + +javaspringcourse: + kafka: + message: + topic: "message.incoming" \ No newline at end of file diff --git a/producer/src/test/java/org/javaspringcourse/producer/ProducerApplicationTests.java b/producer/src/test/java/org/javaspringcourse/producer/ProducerApplicationTests.java new file mode 100644 index 0000000..bd62863 --- /dev/null +++ b/producer/src/test/java/org/javaspringcourse/producer/ProducerApplicationTests.java @@ -0,0 +1,13 @@ +package org.javaspringcourse.producer; + +import org.junit.jupiter.api.Test; +import org.springframework.boot.test.context.SpringBootTest; + +@SpringBootTest +class ProducerApplicationTests { + + @Test + void contextLoads() { + } + +} diff --git a/settings.gradle.kts b/settings.gradle.kts deleted file mode 100644 index 53cd1e6..0000000 --- a/settings.gradle.kts +++ /dev/null @@ -1 +0,0 @@ -rootProject.name = "java-spring-course" diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties deleted file mode 100644 index 61bae71..0000000 --- a/src/main/resources/application.properties +++ /dev/null @@ -1 +0,0 @@ -spring.application.name=java-spring-course