diff --git a/reactive/.gitattributes b/reactive/.gitattributes new file mode 100644 index 0000000..3b41682 --- /dev/null +++ b/reactive/.gitattributes @@ -0,0 +1,2 @@ +/mvnw text eol=lf +*.cmd text eol=crlf diff --git a/reactive/.gitignore b/reactive/.gitignore new file mode 100644 index 0000000..549e00a --- /dev/null +++ b/reactive/.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/reactive/.mvn/wrapper/maven-wrapper.properties b/reactive/.mvn/wrapper/maven-wrapper.properties new file mode 100644 index 0000000..d58dfb7 --- /dev/null +++ b/reactive/.mvn/wrapper/maven-wrapper.properties @@ -0,0 +1,19 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +wrapperVersion=3.3.2 +distributionType=only-script +distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.9.9/apache-maven-3.9.9-bin.zip diff --git a/reactive/mvnw b/reactive/mvnw new file mode 100644 index 0000000..19529dd --- /dev/null +++ b/reactive/mvnw @@ -0,0 +1,259 @@ +#!/bin/sh +# ---------------------------------------------------------------------------- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +# ---------------------------------------------------------------------------- + +# ---------------------------------------------------------------------------- +# Apache Maven Wrapper startup batch script, version 3.3.2 +# +# Optional ENV vars +# ----------------- +# JAVA_HOME - location of a JDK home dir, required when download maven via java source +# MVNW_REPOURL - repo url base for downloading maven distribution +# MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven +# MVNW_VERBOSE - true: enable verbose log; debug: trace the mvnw script; others: silence the output +# ---------------------------------------------------------------------------- + +set -euf +[ "${MVNW_VERBOSE-}" != debug ] || set -x + +# OS specific support. +native_path() { printf %s\\n "$1"; } +case "$(uname)" in +CYGWIN* | MINGW*) + [ -z "${JAVA_HOME-}" ] || JAVA_HOME="$(cygpath --unix "$JAVA_HOME")" + native_path() { cygpath --path --windows "$1"; } + ;; +esac + +# set JAVACMD and JAVACCMD +set_java_home() { + # For Cygwin and MinGW, ensure paths are in Unix format before anything is touched + if [ -n "${JAVA_HOME-}" ]; then + if [ -x "$JAVA_HOME/jre/sh/java" ]; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + JAVACCMD="$JAVA_HOME/jre/sh/javac" + else + JAVACMD="$JAVA_HOME/bin/java" + JAVACCMD="$JAVA_HOME/bin/javac" + + if [ ! -x "$JAVACMD" ] || [ ! -x "$JAVACCMD" ]; then + echo "The JAVA_HOME environment variable is not defined correctly, so mvnw cannot run." >&2 + echo "JAVA_HOME is set to \"$JAVA_HOME\", but \"\$JAVA_HOME/bin/java\" or \"\$JAVA_HOME/bin/javac\" does not exist." >&2 + return 1 + fi + fi + else + JAVACMD="$( + 'set' +e + 'unset' -f command 2>/dev/null + 'command' -v java + )" || : + JAVACCMD="$( + 'set' +e + 'unset' -f command 2>/dev/null + 'command' -v javac + )" || : + + if [ ! -x "${JAVACMD-}" ] || [ ! -x "${JAVACCMD-}" ]; then + echo "The java/javac command does not exist in PATH nor is JAVA_HOME set, so mvnw cannot run." >&2 + return 1 + fi + fi +} + +# hash string like Java String::hashCode +hash_string() { + str="${1:-}" h=0 + while [ -n "$str" ]; do + char="${str%"${str#?}"}" + h=$(((h * 31 + $(LC_CTYPE=C printf %d "'$char")) % 4294967296)) + str="${str#?}" + done + printf %x\\n $h +} + +verbose() { :; } +[ "${MVNW_VERBOSE-}" != true ] || verbose() { printf %s\\n "${1-}"; } + +die() { + printf %s\\n "$1" >&2 + exit 1 +} + +trim() { + # MWRAPPER-139: + # Trims trailing and leading whitespace, carriage returns, tabs, and linefeeds. + # Needed for removing poorly interpreted newline sequences when running in more + # exotic environments such as mingw bash on Windows. + printf "%s" "${1}" | tr -d '[:space:]' +} + +# parse distributionUrl and optional distributionSha256Sum, requires .mvn/wrapper/maven-wrapper.properties +while IFS="=" read -r key value; do + case "${key-}" in + distributionUrl) distributionUrl=$(trim "${value-}") ;; + distributionSha256Sum) distributionSha256Sum=$(trim "${value-}") ;; + esac +done <"${0%/*}/.mvn/wrapper/maven-wrapper.properties" +[ -n "${distributionUrl-}" ] || die "cannot read distributionUrl property in ${0%/*}/.mvn/wrapper/maven-wrapper.properties" + +case "${distributionUrl##*/}" in +maven-mvnd-*bin.*) + MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ + case "${PROCESSOR_ARCHITECTURE-}${PROCESSOR_ARCHITEW6432-}:$(uname -a)" in + *AMD64:CYGWIN* | *AMD64:MINGW*) distributionPlatform=windows-amd64 ;; + :Darwin*x86_64) distributionPlatform=darwin-amd64 ;; + :Darwin*arm64) distributionPlatform=darwin-aarch64 ;; + :Linux*x86_64*) distributionPlatform=linux-amd64 ;; + *) + echo "Cannot detect native platform for mvnd on $(uname)-$(uname -m), use pure java version" >&2 + distributionPlatform=linux-amd64 + ;; + esac + distributionUrl="${distributionUrl%-bin.*}-$distributionPlatform.zip" + ;; +maven-mvnd-*) MVN_CMD=mvnd.sh _MVNW_REPO_PATTERN=/maven/mvnd/ ;; +*) MVN_CMD="mvn${0##*/mvnw}" _MVNW_REPO_PATTERN=/org/apache/maven/ ;; +esac + +# apply MVNW_REPOURL and calculate MAVEN_HOME +# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-,maven-mvnd--}/ +[ -z "${MVNW_REPOURL-}" ] || distributionUrl="$MVNW_REPOURL$_MVNW_REPO_PATTERN${distributionUrl#*"$_MVNW_REPO_PATTERN"}" +distributionUrlName="${distributionUrl##*/}" +distributionUrlNameMain="${distributionUrlName%.*}" +distributionUrlNameMain="${distributionUrlNameMain%-bin}" +MAVEN_USER_HOME="${MAVEN_USER_HOME:-${HOME}/.m2}" +MAVEN_HOME="${MAVEN_USER_HOME}/wrapper/dists/${distributionUrlNameMain-}/$(hash_string "$distributionUrl")" + +exec_maven() { + unset MVNW_VERBOSE MVNW_USERNAME MVNW_PASSWORD MVNW_REPOURL || : + exec "$MAVEN_HOME/bin/$MVN_CMD" "$@" || die "cannot exec $MAVEN_HOME/bin/$MVN_CMD" +} + +if [ -d "$MAVEN_HOME" ]; then + verbose "found existing MAVEN_HOME at $MAVEN_HOME" + exec_maven "$@" +fi + +case "${distributionUrl-}" in +*?-bin.zip | *?maven-mvnd-?*-?*.zip) ;; +*) die "distributionUrl is not valid, must match *-bin.zip or maven-mvnd-*.zip, but found '${distributionUrl-}'" ;; +esac + +# prepare tmp dir +if TMP_DOWNLOAD_DIR="$(mktemp -d)" && [ -d "$TMP_DOWNLOAD_DIR" ]; then + clean() { rm -rf -- "$TMP_DOWNLOAD_DIR"; } + trap clean HUP INT TERM EXIT +else + die "cannot create temp dir" +fi + +mkdir -p -- "${MAVEN_HOME%/*}" + +# Download and Install Apache Maven +verbose "Couldn't find MAVEN_HOME, downloading and installing it ..." +verbose "Downloading from: $distributionUrl" +verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName" + +# select .zip or .tar.gz +if ! command -v unzip >/dev/null; then + distributionUrl="${distributionUrl%.zip}.tar.gz" + distributionUrlName="${distributionUrl##*/}" +fi + +# verbose opt +__MVNW_QUIET_WGET=--quiet __MVNW_QUIET_CURL=--silent __MVNW_QUIET_UNZIP=-q __MVNW_QUIET_TAR='' +[ "${MVNW_VERBOSE-}" != true ] || __MVNW_QUIET_WGET='' __MVNW_QUIET_CURL='' __MVNW_QUIET_UNZIP='' __MVNW_QUIET_TAR=v + +# normalize http auth +case "${MVNW_PASSWORD:+has-password}" in +'') MVNW_USERNAME='' MVNW_PASSWORD='' ;; +has-password) [ -n "${MVNW_USERNAME-}" ] || MVNW_USERNAME='' MVNW_PASSWORD='' ;; +esac + +if [ -z "${MVNW_USERNAME-}" ] && command -v wget >/dev/null; then + verbose "Found wget ... using wget" + wget ${__MVNW_QUIET_WGET:+"$__MVNW_QUIET_WGET"} "$distributionUrl" -O "$TMP_DOWNLOAD_DIR/$distributionUrlName" || die "wget: Failed to fetch $distributionUrl" +elif [ -z "${MVNW_USERNAME-}" ] && command -v curl >/dev/null; then + verbose "Found curl ... using curl" + curl ${__MVNW_QUIET_CURL:+"$__MVNW_QUIET_CURL"} -f -L -o "$TMP_DOWNLOAD_DIR/$distributionUrlName" "$distributionUrl" || die "curl: Failed to fetch $distributionUrl" +elif set_java_home; then + verbose "Falling back to use Java to download" + javaSource="$TMP_DOWNLOAD_DIR/Downloader.java" + targetZip="$TMP_DOWNLOAD_DIR/$distributionUrlName" + cat >"$javaSource" <<-END + public class Downloader extends java.net.Authenticator + { + protected java.net.PasswordAuthentication getPasswordAuthentication() + { + return new java.net.PasswordAuthentication( System.getenv( "MVNW_USERNAME" ), System.getenv( "MVNW_PASSWORD" ).toCharArray() ); + } + public static void main( String[] args ) throws Exception + { + setDefault( new Downloader() ); + java.nio.file.Files.copy( java.net.URI.create( args[0] ).toURL().openStream(), java.nio.file.Paths.get( args[1] ).toAbsolutePath().normalize() ); + } + } + END + # For Cygwin/MinGW, switch paths to Windows format before running javac and java + verbose " - Compiling Downloader.java ..." + "$(native_path "$JAVACCMD")" "$(native_path "$javaSource")" || die "Failed to compile Downloader.java" + verbose " - Running Downloader.java ..." + "$(native_path "$JAVACMD")" -cp "$(native_path "$TMP_DOWNLOAD_DIR")" Downloader "$distributionUrl" "$(native_path "$targetZip")" +fi + +# If specified, validate the SHA-256 sum of the Maven distribution zip file +if [ -n "${distributionSha256Sum-}" ]; then + distributionSha256Result=false + if [ "$MVN_CMD" = mvnd.sh ]; then + echo "Checksum validation is not supported for maven-mvnd." >&2 + echo "Please disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2 + exit 1 + elif command -v sha256sum >/dev/null; then + if echo "$distributionSha256Sum $TMP_DOWNLOAD_DIR/$distributionUrlName" | sha256sum -c >/dev/null 2>&1; then + distributionSha256Result=true + fi + elif command -v shasum >/dev/null; then + if echo "$distributionSha256Sum $TMP_DOWNLOAD_DIR/$distributionUrlName" | shasum -a 256 -c >/dev/null 2>&1; then + distributionSha256Result=true + fi + else + echo "Checksum validation was requested but neither 'sha256sum' or 'shasum' are available." >&2 + echo "Please install either command, or disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." >&2 + exit 1 + fi + if [ $distributionSha256Result = false ]; then + echo "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised." >&2 + echo "If you updated your Maven version, you need to update the specified distributionSha256Sum property." >&2 + exit 1 + fi +fi + +# unzip and move +if command -v unzip >/dev/null; then + unzip ${__MVNW_QUIET_UNZIP:+"$__MVNW_QUIET_UNZIP"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -d "$TMP_DOWNLOAD_DIR" || die "failed to unzip" +else + tar xzf${__MVNW_QUIET_TAR:+"$__MVNW_QUIET_TAR"} "$TMP_DOWNLOAD_DIR/$distributionUrlName" -C "$TMP_DOWNLOAD_DIR" || die "failed to untar" +fi +printf %s\\n "$distributionUrl" >"$TMP_DOWNLOAD_DIR/$distributionUrlNameMain/mvnw.url" +mv -- "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" "$MAVEN_HOME" || [ -d "$MAVEN_HOME" ] || die "fail to move MAVEN_HOME" + +clean || : +exec_maven "$@" diff --git a/reactive/mvnw.cmd b/reactive/mvnw.cmd new file mode 100644 index 0000000..249bdf3 --- /dev/null +++ b/reactive/mvnw.cmd @@ -0,0 +1,149 @@ +<# : batch portion +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM http://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Apache Maven Wrapper startup batch script, version 3.3.2 +@REM +@REM Optional ENV vars +@REM MVNW_REPOURL - repo url base for downloading maven distribution +@REM MVNW_USERNAME/MVNW_PASSWORD - user and password for downloading maven +@REM MVNW_VERBOSE - true: enable verbose log; others: silence the output +@REM ---------------------------------------------------------------------------- + +@IF "%__MVNW_ARG0_NAME__%"=="" (SET __MVNW_ARG0_NAME__=%~nx0) +@SET __MVNW_CMD__= +@SET __MVNW_ERROR__= +@SET __MVNW_PSMODULEP_SAVE=%PSModulePath% +@SET PSModulePath= +@FOR /F "usebackq tokens=1* delims==" %%A IN (`powershell -noprofile "& {$scriptDir='%~dp0'; $script='%__MVNW_ARG0_NAME__%'; icm -ScriptBlock ([Scriptblock]::Create((Get-Content -Raw '%~f0'))) -NoNewScope}"`) DO @( + IF "%%A"=="MVN_CMD" (set __MVNW_CMD__=%%B) ELSE IF "%%B"=="" (echo %%A) ELSE (echo %%A=%%B) +) +@SET PSModulePath=%__MVNW_PSMODULEP_SAVE% +@SET __MVNW_PSMODULEP_SAVE= +@SET __MVNW_ARG0_NAME__= +@SET MVNW_USERNAME= +@SET MVNW_PASSWORD= +@IF NOT "%__MVNW_CMD__%"=="" (%__MVNW_CMD__% %*) +@echo Cannot start maven from wrapper >&2 && exit /b 1 +@GOTO :EOF +: end batch / begin powershell #> + +$ErrorActionPreference = "Stop" +if ($env:MVNW_VERBOSE -eq "true") { + $VerbosePreference = "Continue" +} + +# calculate distributionUrl, requires .mvn/wrapper/maven-wrapper.properties +$distributionUrl = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionUrl +if (!$distributionUrl) { + Write-Error "cannot read distributionUrl property in $scriptDir/.mvn/wrapper/maven-wrapper.properties" +} + +switch -wildcard -casesensitive ( $($distributionUrl -replace '^.*/','') ) { + "maven-mvnd-*" { + $USE_MVND = $true + $distributionUrl = $distributionUrl -replace '-bin\.[^.]*$',"-windows-amd64.zip" + $MVN_CMD = "mvnd.cmd" + break + } + default { + $USE_MVND = $false + $MVN_CMD = $script -replace '^mvnw','mvn' + break + } +} + +# apply MVNW_REPOURL and calculate MAVEN_HOME +# maven home pattern: ~/.m2/wrapper/dists/{apache-maven-,maven-mvnd--}/ +if ($env:MVNW_REPOURL) { + $MVNW_REPO_PATTERN = if ($USE_MVND) { "/org/apache/maven/" } else { "/maven/mvnd/" } + $distributionUrl = "$env:MVNW_REPOURL$MVNW_REPO_PATTERN$($distributionUrl -replace '^.*'+$MVNW_REPO_PATTERN,'')" +} +$distributionUrlName = $distributionUrl -replace '^.*/','' +$distributionUrlNameMain = $distributionUrlName -replace '\.[^.]*$','' -replace '-bin$','' +$MAVEN_HOME_PARENT = "$HOME/.m2/wrapper/dists/$distributionUrlNameMain" +if ($env:MAVEN_USER_HOME) { + $MAVEN_HOME_PARENT = "$env:MAVEN_USER_HOME/wrapper/dists/$distributionUrlNameMain" +} +$MAVEN_HOME_NAME = ([System.Security.Cryptography.MD5]::Create().ComputeHash([byte[]][char[]]$distributionUrl) | ForEach-Object {$_.ToString("x2")}) -join '' +$MAVEN_HOME = "$MAVEN_HOME_PARENT/$MAVEN_HOME_NAME" + +if (Test-Path -Path "$MAVEN_HOME" -PathType Container) { + Write-Verbose "found existing MAVEN_HOME at $MAVEN_HOME" + Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD" + exit $? +} + +if (! $distributionUrlNameMain -or ($distributionUrlName -eq $distributionUrlNameMain)) { + Write-Error "distributionUrl is not valid, must end with *-bin.zip, but found $distributionUrl" +} + +# prepare tmp dir +$TMP_DOWNLOAD_DIR_HOLDER = New-TemporaryFile +$TMP_DOWNLOAD_DIR = New-Item -Itemtype Directory -Path "$TMP_DOWNLOAD_DIR_HOLDER.dir" +$TMP_DOWNLOAD_DIR_HOLDER.Delete() | Out-Null +trap { + if ($TMP_DOWNLOAD_DIR.Exists) { + try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null } + catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" } + } +} + +New-Item -Itemtype Directory -Path "$MAVEN_HOME_PARENT" -Force | Out-Null + +# Download and Install Apache Maven +Write-Verbose "Couldn't find MAVEN_HOME, downloading and installing it ..." +Write-Verbose "Downloading from: $distributionUrl" +Write-Verbose "Downloading to: $TMP_DOWNLOAD_DIR/$distributionUrlName" + +$webclient = New-Object System.Net.WebClient +if ($env:MVNW_USERNAME -and $env:MVNW_PASSWORD) { + $webclient.Credentials = New-Object System.Net.NetworkCredential($env:MVNW_USERNAME, $env:MVNW_PASSWORD) +} +[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 +$webclient.DownloadFile($distributionUrl, "$TMP_DOWNLOAD_DIR/$distributionUrlName") | Out-Null + +# If specified, validate the SHA-256 sum of the Maven distribution zip file +$distributionSha256Sum = (Get-Content -Raw "$scriptDir/.mvn/wrapper/maven-wrapper.properties" | ConvertFrom-StringData).distributionSha256Sum +if ($distributionSha256Sum) { + if ($USE_MVND) { + Write-Error "Checksum validation is not supported for maven-mvnd. `nPlease disable validation by removing 'distributionSha256Sum' from your maven-wrapper.properties." + } + Import-Module $PSHOME\Modules\Microsoft.PowerShell.Utility -Function Get-FileHash + if ((Get-FileHash "$TMP_DOWNLOAD_DIR/$distributionUrlName" -Algorithm SHA256).Hash.ToLower() -ne $distributionSha256Sum) { + Write-Error "Error: Failed to validate Maven distribution SHA-256, your Maven distribution might be compromised. If you updated your Maven version, you need to update the specified distributionSha256Sum property." + } +} + +# unzip and move +Expand-Archive "$TMP_DOWNLOAD_DIR/$distributionUrlName" -DestinationPath "$TMP_DOWNLOAD_DIR" | Out-Null +Rename-Item -Path "$TMP_DOWNLOAD_DIR/$distributionUrlNameMain" -NewName $MAVEN_HOME_NAME | Out-Null +try { + Move-Item -Path "$TMP_DOWNLOAD_DIR/$MAVEN_HOME_NAME" -Destination $MAVEN_HOME_PARENT | Out-Null +} catch { + if (! (Test-Path -Path "$MAVEN_HOME" -PathType Container)) { + Write-Error "fail to move MAVEN_HOME" + } +} finally { + try { Remove-Item $TMP_DOWNLOAD_DIR -Recurse -Force | Out-Null } + catch { Write-Warning "Cannot remove $TMP_DOWNLOAD_DIR" } +} + +Write-Output "MVN_CMD=$MAVEN_HOME/bin/$MVN_CMD" diff --git a/reactive/pom.xml b/reactive/pom.xml new file mode 100644 index 0000000..1d58a1e --- /dev/null +++ b/reactive/pom.xml @@ -0,0 +1,123 @@ + + + 4.0.0 + + org.springframework.boot + spring-boot-starter-parent + 3.4.3 + + + com.example + reactive + 0.0.1-SNAPSHOT + reactive + Demo project for Spring Boot for Reactive + + + + + + + + + + + + + + + 17 + + + + org.springframework.boot + spring-boot-starter-webflux + + + + + + + + io.micrometer + micrometer-tracing-bridge-otel + + + + + io.opentelemetry + opentelemetry-sdk + + + + + io.opentelemetry + opentelemetry-exporter-logging + + + + + + + + org.springframework.boot + spring-boot-starter-data-mongodb-reactive + + + + + org.projectlombok + lombok + provided + + + + org.springframework.boot + spring-boot-devtools + true + + + org.springframework.boot + spring-boot-starter-test + test + + + io.projectreactor + reactor-test + test + + + + + + + + + org.apache.maven.plugins + maven-compiler-plugin + + + + org.projectlombok + lombok + + + + + + org.springframework.boot + spring-boot-maven-plugin + + + + org.projectlombok + lombok + + + + + + + + diff --git a/reactive/src/main/java/com/example/reactive/Blog.java b/reactive/src/main/java/com/example/reactive/Blog.java new file mode 100644 index 0000000..59319c5 --- /dev/null +++ b/reactive/src/main/java/com/example/reactive/Blog.java @@ -0,0 +1,17 @@ +package com.example.reactive; + +import lombok.Data; +import org.springframework.data.annotation.Id; +import org.springframework.data.mongodb.core.mapping.Document; +import java.time.LocalDateTime; + +@Data +@Document(collection = "blogs") +public class Blog { + @Id + private String id; + private String title; + private String content; + private String author; + private LocalDateTime createdAt = LocalDateTime.now(); +} diff --git a/reactive/src/main/java/com/example/reactive/BlogController.java b/reactive/src/main/java/com/example/reactive/BlogController.java new file mode 100644 index 0000000..327b55a --- /dev/null +++ b/reactive/src/main/java/com/example/reactive/BlogController.java @@ -0,0 +1,61 @@ +package com.example.reactive; + +import org.springframework.http.ResponseEntity; +import org.springframework.web.bind.annotation.*; +import reactor.core.publisher.Flux; +import reactor.core.publisher.Mono; + +import java.net.URI; + +@RestController +@RequestMapping("/blogs") +public class BlogController { + private final BlogService blogService; + + public BlogController(BlogService blogService) { + this.blogService = blogService; + } + + @PostMapping + public Mono> createBlog(@RequestBody Blog blog) { + return blogService.createBlog(blog) + .map(saved -> ResponseEntity + .created(URI.create("/blogs/" + saved.getId())) + .body(saved)); + } + + @GetMapping + public Flux getAllBlogs() { + return blogService.getAllBlogs(); + } + + @GetMapping("/{id}") + public Mono> getBlogById(@PathVariable String id) { + return blogService.getBlogById(id) + .map(ResponseEntity::ok) + .switchIfEmpty(Mono.just(ResponseEntity.notFound().build())); + } + + @GetMapping("/author/{author}") + public Flux getBlogsByAuthor(@PathVariable String author) { + return blogService.getBlogsByAuthor(author); + } + + @PutMapping("/{id}") + public Mono> updateBlog(@PathVariable String id, @RequestBody Blog blog) { + return blogService.updateBlog(id, blog) + .map(ResponseEntity::ok) + .switchIfEmpty(Mono.just(ResponseEntity.notFound().build())); + } + + @DeleteMapping("/{id}") + public Mono> deleteBlog(@PathVariable String id) { + return blogService.deleteBlog(id).flatMap(response -> { + if (response) { + return Mono.just(ResponseEntity.noContent().build()); + } else { + return Mono.just(ResponseEntity.notFound().build()); + } + }); + } +} diff --git a/reactive/src/main/java/com/example/reactive/BlogRepository.java b/reactive/src/main/java/com/example/reactive/BlogRepository.java new file mode 100644 index 0000000..dc2553c --- /dev/null +++ b/reactive/src/main/java/com/example/reactive/BlogRepository.java @@ -0,0 +1,8 @@ +package com.example.reactive; + +import org.springframework.data.mongodb.repository.ReactiveMongoRepository; +import reactor.core.publisher.Flux; + +public interface BlogRepository extends ReactiveMongoRepository { + Flux findByAuthor(String author); +} diff --git a/reactive/src/main/java/com/example/reactive/BlogService.java b/reactive/src/main/java/com/example/reactive/BlogService.java new file mode 100644 index 0000000..f17fff8 --- /dev/null +++ b/reactive/src/main/java/com/example/reactive/BlogService.java @@ -0,0 +1,51 @@ +package com.example.reactive; + +import org.springframework.http.HttpStatus; +import org.springframework.stereotype.Service; +import org.springframework.web.server.ResponseStatusException; +import reactor.core.publisher.Flux; +import reactor.core.publisher.Mono; + +@Service +public class BlogService { + private final BlogRepository blogRepository; + + public BlogService(BlogRepository blogRepository) { + this.blogRepository = blogRepository; + } + + public Mono createBlog(Blog blog) { + return blogRepository.save(blog); + } + + public Flux getAllBlogs() { + return blogRepository.findAll(); + } + + public Mono getBlogById(String id) { + return blogRepository.findById(id) + .switchIfEmpty(Mono.error(new ResponseStatusException(HttpStatus.NOT_FOUND, + "Blog with id " + id + " not found"))); + } + + public Flux getBlogsByAuthor(String author) { + return blogRepository.findByAuthor(author); + } + + public Mono updateBlog(String id, Blog blog) { + return blogRepository.findById(id) + .switchIfEmpty(Mono.error(new ResponseStatusException(HttpStatus.NOT_FOUND, + "Blog with id " + id + " not found"))) + .flatMap(existingBlog -> { + existingBlog.setTitle(blog.getTitle()); + existingBlog.setContent(blog.getContent()); + existingBlog.setAuthor(blog.getAuthor()); + return blogRepository.save(existingBlog); + }); + } + + public Mono deleteBlog(String id) { + return blogRepository.findById(id).flatMap(blogRepository::delete + ).then(Mono.just(true)).switchIfEmpty(Mono.just(false)); + } +} diff --git a/reactive/src/main/java/com/example/reactive/EpisodeController.java b/reactive/src/main/java/com/example/reactive/EpisodeController.java new file mode 100644 index 0000000..6d05408 --- /dev/null +++ b/reactive/src/main/java/com/example/reactive/EpisodeController.java @@ -0,0 +1,130 @@ +package com.example.reactive; + + +import com.example.reactive.sample.CustomEpisode; +import com.example.reactive.sample.EpisodeResponse; +import io.micrometer.tracing.Tracer; +import lombok.RequiredArgsConstructor; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.http.HttpStatus; +import org.springframework.http.ResponseEntity; +import org.springframework.web.bind.annotation.GetMapping; +import org.springframework.web.bind.annotation.RequestMapping; +import org.springframework.web.bind.annotation.RestController; +import org.springframework.web.reactive.function.client.WebClient; +import reactor.core.publisher.Mono; +import reactor.util.context.Context; + +import java.util.Collections; +import java.util.List; + +@RestController +@RequestMapping("/episodes") +@RequiredArgsConstructor +public class EpisodeController { + + private final WebClient webClient; + private final Tracer tracer; // from micrometer + private final Logger logger = LoggerFactory.getLogger(EpisodeController.class); + + /* @GetMapping + public Mono>> getEpisodes() { + // Manually create and start a span + Span newSpan = tracer.nextSpan().name("fetch-episodes").start(); + try (Tracer.SpanInScope ws = tracer.withSpan(newSpan)) { + + return webClient.get() + .uri("https://apissa.sampleapis.com/futurama/episodexxs") // Intentionally faulty for error testing + .retrieve() + .bodyToFlux(EpisodeResponse.class) + .map(ep -> new CustomEpisode(ep.title, ep.writers, ep.originalAirDate, ep.desc, ep.id)) + .collectList() + .map(ResponseEntity::ok) + .doOnSuccess(res -> { + newSpan.tag("episodes.success", "true"); + newSpan.event("Successfully fetched episodes"); + newSpan.end(); + }) + .doOnError(e -> { + newSpan.tag("episodes.success", "false"); + newSpan.error(e); + newSpan.end(); + }) + .onErrorResume(e -> { + String traceId = newSpan.context().traceId(); + +// logger.error("Error fetching episodes. Trace ID: {}", traceId, e); + + CustomEpisode errorEpisode = new CustomEpisode( + "Error occurred", "", "", "Trace ID: " + traceId + ", error: " + e.getMessage(), -1 + ); + return Mono.just(ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR) + .body(Collections.singletonList(errorEpisode))); + }); + + } catch (Exception e) { + newSpan.error(e); + newSpan.end(); + throw e; + } + }*/ + + @GetMapping + public Mono>> getEpisodes() { + + String traceId = tracer.currentSpan() != null + ? tracer.currentSpan().context().traceId() + : "N/A"; + + return webClient.get() + .uri("https://apissa.sampleapis.com/futurama/episodexxs") // sample typo in URL to trigger error + .retrieve() + .bodyToFlux(EpisodeResponse.class) + .contextWrite(Context.of("traceId", traceId)) + .map(ep -> new CustomEpisode(ep.getTitle(), ep.getWriters(), ep.getOriginalAirDate(), ep.getDesc(), ep.getId())) + .collectList() + .map(ResponseEntity::ok) + .onErrorResume(e -> + Mono.deferContextual(ctx -> { + String ctxTraceId = ctx.getOrDefault("traceId", "N/A"); + logger.info("TraceId inside context: {}", ctxTraceId); + + logger.error("Error fetching episodes. Trace ID: {}", ctxTraceId, e); + + CustomEpisode errorEpisode = new CustomEpisode( + "Error occurred", "", "", "Trace ID: " + traceId + ", error: " + e.getMessage(), -1 + ); + + return Mono.just(ResponseEntity + .status(HttpStatus.INTERNAL_SERVER_ERROR) + .body(Collections.singletonList(errorEpisode))); + }) + ); + } + + + public Mono> callApiWithTrace(WebClient webClient, Tracer tracer) { + String traceId = tracer.currentSpan() != null + ? tracer.currentSpan().context().traceId() + : "N/A"; + + return webClient.get() + .uri("https://api.sampleapis.com/futurama/episodes") + .retrieve() + .bodyToMono(String.class) + .contextWrite(Context.of("traceId", traceId)) + .flatMap(response -> Mono.deferContextual(ctx -> { + String ctxTraceId = ctx.getOrDefault("traceId", "N/A"); + logger.info("TraceId inside context: {}", ctxTraceId); + return Mono.just(ResponseEntity.ok("Success with traceId: " + ctxTraceId)); + })) + .onErrorResume(e -> Mono.deferContextual(ctx -> { + String ctxTraceId = ctx.getOrDefault("traceId", "N/A"); + logger.error("Error with traceId {}: {}", ctxTraceId, e.getMessage()); + return Mono.just(ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR) + .body("Error: " + e.getMessage() + " TraceId: " + ctxTraceId)); + })); + } + +} diff --git a/reactive/src/main/java/com/example/reactive/ReactiveApplication.java b/reactive/src/main/java/com/example/reactive/ReactiveApplication.java new file mode 100644 index 0000000..ff5de4e --- /dev/null +++ b/reactive/src/main/java/com/example/reactive/ReactiveApplication.java @@ -0,0 +1,13 @@ +package com.example.reactive; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; + +@SpringBootApplication +public class ReactiveApplication { + + public static void main(String[] args) { + SpringApplication.run(ReactiveApplication.class, args); + } + +} diff --git a/reactive/src/main/java/com/example/reactive/sample/CustomEpisode.java b/reactive/src/main/java/com/example/reactive/sample/CustomEpisode.java new file mode 100644 index 0000000..87d1f0d --- /dev/null +++ b/reactive/src/main/java/com/example/reactive/sample/CustomEpisode.java @@ -0,0 +1,18 @@ +package com.example.reactive.sample; + +import lombok.AllArgsConstructor; +import lombok.Builder; +import lombok.Data; +import lombok.NoArgsConstructor; + +@Data +@AllArgsConstructor +@NoArgsConstructor +@Builder +public class CustomEpisode { + private String title; + private String writers; + private String publishDate; + private String description; + private int id; +} \ No newline at end of file diff --git a/reactive/src/main/java/com/example/reactive/sample/EpisodeResponse.java b/reactive/src/main/java/com/example/reactive/sample/EpisodeResponse.java new file mode 100644 index 0000000..a3f9bed --- /dev/null +++ b/reactive/src/main/java/com/example/reactive/sample/EpisodeResponse.java @@ -0,0 +1,12 @@ +package com.example.reactive.sample; + +import lombok.Data; + +@Data +public class EpisodeResponse { + private String title; + private String writers; + private String originalAirDate; + private String desc; + private int id; +} diff --git a/reactive/src/main/java/com/example/reactive/sample/TracingConfig.java b/reactive/src/main/java/com/example/reactive/sample/TracingConfig.java new file mode 100644 index 0000000..e23dfa9 --- /dev/null +++ b/reactive/src/main/java/com/example/reactive/sample/TracingConfig.java @@ -0,0 +1,40 @@ +package com.example.reactive.sample; + +import io.micrometer.tracing.Tracer; +import io.micrometer.tracing.otel.bridge.OtelCurrentTraceContext; +import io.micrometer.tracing.otel.bridge.OtelTracer; +import io.opentelemetry.exporter.logging.LoggingSpanExporter; +import io.opentelemetry.sdk.OpenTelemetrySdk; +import io.opentelemetry.sdk.trace.SdkTracerProvider; +import io.opentelemetry.sdk.trace.export.SimpleSpanProcessor; +import org.springframework.context.annotation.Bean; +import org.springframework.context.annotation.Configuration; + +@Configuration +public class TracingConfig { + + @Bean + public Tracer tracer() { + SdkTracerProvider sdkTracerProvider = SdkTracerProvider.builder() + .addSpanProcessor(SimpleSpanProcessor.create(new LoggingSpanExporter())) + .build(); + + OpenTelemetrySdk openTelemetry = OpenTelemetrySdk.builder() + .setTracerProvider(sdkTracerProvider) + .build(); + + OtelCurrentTraceContext otelCurrentTraceContext = new OtelCurrentTraceContext(); + + return new OtelTracer( + openTelemetry.getTracer("your-app"), + otelCurrentTraceContext, + (span) -> { + } + ); + } + +// @Bean +// public Tracer tracer(OpenTelemetry openTelemetry) { +// return MicrometerTracerFactory.create(openTelemetry); +// } +} diff --git a/reactive/src/main/java/com/example/reactive/sample/WebClientConfig.java b/reactive/src/main/java/com/example/reactive/sample/WebClientConfig.java new file mode 100644 index 0000000..cdb5d51 --- /dev/null +++ b/reactive/src/main/java/com/example/reactive/sample/WebClientConfig.java @@ -0,0 +1,29 @@ +package com.example.reactive.sample; + +import io.micrometer.tracing.Tracer; +import org.springframework.context.annotation.Bean; +import org.springframework.context.annotation.Configuration; +import org.springframework.web.reactive.function.client.WebClient; +import reactor.core.publisher.Mono; + +import java.time.Duration; +import java.util.concurrent.TimeoutException; + +@Configuration +public class WebClientConfig { + + @Bean + public WebClient webClient(WebClient.Builder builder, Tracer tracer) { + return builder + .codecs(configurer -> configurer.defaultCodecs().maxInMemorySize(16 * 1024 * 1024)) + .filter((request, next) -> next.exchange(request) + .timeout(Duration.ofSeconds(10)) + .onErrorResume(e -> { + if (e instanceof TimeoutException) { + return Mono.error(new RuntimeException("API request timed out", e)); + } + return Mono.error(e); + })) + .build(); + } +} diff --git a/reactive/src/main/resources/application.yml b/reactive/src/main/resources/application.yml new file mode 100644 index 0000000..8dcb099 --- /dev/null +++ b/reactive/src/main/resources/application.yml @@ -0,0 +1,7 @@ +spring: + application: + name: reactive + + data: + mongodb: + uri: mongodb://localhost:27017/reactive-db diff --git a/reactive/src/test/java/com/example/reactive/ReactiveApplicationTests.java b/reactive/src/test/java/com/example/reactive/ReactiveApplicationTests.java new file mode 100644 index 0000000..5888dba --- /dev/null +++ b/reactive/src/test/java/com/example/reactive/ReactiveApplicationTests.java @@ -0,0 +1,13 @@ +package com.example.reactive; + +import org.junit.jupiter.api.Test; +import org.springframework.boot.test.context.SpringBootTest; + +@SpringBootTest +class ReactiveApplicationTests { + + @Test + void contextLoads() { + } + +}