[BAEL-2284] R2DBC Sample Project (#7314)

* [BAEL-2284] Sample project

* [BAEL-2284] Sample project

* [BAEL-2284] Sample code adjustments

* [BAEL-2284] Sample code adjustments

* [BAEL-2284] Sample code adjustments

* [BAEL-2284] Add README
This commit is contained in:
psevestre 2019-07-26 01:32:23 -03:00 committed by Grzegorz Piwowarek
parent c7433926c5
commit 76bb391379
29 changed files with 1408 additions and 31 deletions

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@ -58,5 +58,6 @@
<module>spring-jpa</module>
<module>spring-persistence-simple</module>
<module>jpa-hibernate-cascade-type</module>
<module>r2dbc</module>
</modules>
</project>

31
persistence-modules/r2dbc/.gitignore vendored Normal file
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HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**
!**/src/test/**
### 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/
### VS Code ###
.vscode/

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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.
*/
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URL;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;
import java.util.Properties;
public class MavenWrapperDownloader {
/**
* Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
*/
private static final String DEFAULT_DOWNLOAD_URL =
"https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.2/maven-wrapper-0.4.2.jar";
/**
* Path to the maven-wrapper.properties file, which might contain a downloadUrl property to
* use instead of the default one.
*/
private static final String MAVEN_WRAPPER_PROPERTIES_PATH =
".mvn/wrapper/maven-wrapper.properties";
/**
* Path where the maven-wrapper.jar will be saved to.
*/
private static final String MAVEN_WRAPPER_JAR_PATH =
".mvn/wrapper/maven-wrapper.jar";
/**
* Name of the property which should be used to override the default download url for the wrapper.
*/
private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
public static void main(String args[]) {
System.out.println("- Downloader started");
File baseDirectory = new File(args[0]);
System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
// If the maven-wrapper.properties exists, read it and check if it contains a custom
// wrapperUrl parameter.
File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
String url = DEFAULT_DOWNLOAD_URL;
if(mavenWrapperPropertyFile.exists()) {
FileInputStream mavenWrapperPropertyFileInputStream = null;
try {
mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
Properties mavenWrapperProperties = new Properties();
mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
} catch (IOException e) {
System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
} finally {
try {
if(mavenWrapperPropertyFileInputStream != null) {
mavenWrapperPropertyFileInputStream.close();
}
} catch (IOException e) {
// Ignore ...
}
}
}
System.out.println("- Downloading from: : " + url);
File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
if(!outputFile.getParentFile().exists()) {
if(!outputFile.getParentFile().mkdirs()) {
System.out.println(
"- ERROR creating output direcrory '" + outputFile.getParentFile().getAbsolutePath() + "'");
}
}
System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
try {
downloadFileFromURL(url, outputFile);
System.out.println("Done");
System.exit(0);
} catch (Throwable e) {
System.out.println("- Error downloading");
e.printStackTrace();
System.exit(1);
}
}
private static void downloadFileFromURL(String urlString, File destination) throws Exception {
URL website = new URL(urlString);
ReadableByteChannel rbc;
rbc = Channels.newChannel(website.openStream());
FileOutputStream fos = new FileOutputStream(destination);
fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
fos.close();
rbc.close();
}
}

Binary file not shown.

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@ -0,0 +1 @@
distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.0/apache-maven-3.6.0-bin.zip

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### Relevant Articles:
- [R2DBC Reactive Relational Database Connectivity](https://www.baeldung.com/r2dbc)

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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.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Maven2 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 "$MAVEN_SKIP_RC" ] ; then
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$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 "$JAVA_HOME"; pwd)`"
# TODO classpath?
fi
if [ -z "$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="`which 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
jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.4.2/maven-wrapper-0.4.2.jar"
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 command -v wget > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found wget ... using wget"
fi
wget "$jarUrl" -O "$wrapperJarPath"
elif command -v curl > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found curl ... using curl"
fi
curl -o "$wrapperJarPath" "$jarUrl"
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Falling back to using Java to download"
fi
javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
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 "$MAVEN_PROJECTBASEDIR"`
fi
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
exec "$JAVACMD" \
$MAVEN_OPTS \
-classpath "$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 Maven2 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 key stroke 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 my 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 "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\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/io/takari/maven-wrapper/0.4.2/maven-wrapper-0.4.2.jar"
FOR /F "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% (
echo Found %WRAPPER_JAR%
) else (
echo Couldn't find %WRAPPER_JAR%, downloading it ...
echo Downloading from: %DOWNLOAD_URL%
powershell -Command "(New-Object Net.WebClient).DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"
echo Finished downloading %WRAPPER_JAR%
)
@REM End of extension
%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 "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\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%
exit /B %ERROR_CODE%

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@ -0,0 +1,90 @@
<?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 http://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>2.1.6.RELEASE</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>org.baeldung.examples.r2dbc</groupId>
<artifactId>r2dbc-example</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>r2dbc-example</name>
<description>Sample R2DBC Project</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.projectreactor</groupId>
<artifactId>reactor-test</artifactId>
<scope>test</scope>
</dependency>
<!-- R2DBC H2 Driver -->
<dependency>
<groupId>io.r2dbc</groupId>
<artifactId>r2dbc-h2</artifactId>
<version>0.8.0.M8</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<!-- Extra repositories for R2DBC-H2 -->
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
</project>

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package org.baeldung.examples.r2dbc;
import java.math.BigDecimal;
public class Account {
private Long id;
private String iban;
private BigDecimal balance;
public Account() {}
public Account(Long id, String iban, BigDecimal balance) {
this.id = id;
this.iban = iban;
this.balance = balance;
}
public Account(Long id, String iban, Double balance) {
this.id = id;
this.iban = iban;
this.balance = new BigDecimal(balance);
}
/**
* @return the id
*/
public Long getId() {
return id;
}
/**
* @param id the id to set
*/
public void setId(Long id) {
this.id = id;
}
/**
* @return the iban
*/
public String getIban() {
return iban;
}
/**
* @param iban the iban to set
*/
public void setIban(String iban) {
this.iban = iban;
}
/**
* @return the balance
*/
public BigDecimal getBalance() {
return balance;
}
/**
* @param balance the balance to set
*/
public void setBalance(BigDecimal balance) {
this.balance = balance;
}
}

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/**
*
*/
package org.baeldung.examples.r2dbc;
import java.math.BigDecimal;
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.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import io.r2dbc.spi.Connection;
import io.r2dbc.spi.ConnectionFactory;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
/**
* @author Philippe
*
*/
@RestController
public class AccountResource {
private final ReactiveAccountDao accountDao;
public AccountResource(ReactiveAccountDao accountDao) {
this.accountDao = accountDao;
}
@GetMapping("/accounts/{id}")
public Mono<ResponseEntity<Account>> getAccount(@PathVariable("id") Long id) {
return accountDao.findById(id)
.map(acc -> new ResponseEntity<>(acc, HttpStatus.OK))
.switchIfEmpty(Mono.just(new ResponseEntity<>(null, HttpStatus.NOT_FOUND)));
}
@GetMapping("/accounts")
public Flux<Account> getAllAccounts() {
return accountDao.findAll();
}
@PostMapping("/accounts")
public Mono<ResponseEntity<Account>> postAccount(@RequestBody Account account) {
return accountDao.createAccount(account)
.map(acc -> new ResponseEntity<>(acc, HttpStatus.CREATED))
.log();
}
}

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@ -0,0 +1,65 @@
package org.baeldung.examples.r2dbc;
import org.springframework.boot.CommandLineRunner;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.StringUtils;
import io.netty.util.internal.StringUtil;
import io.r2dbc.spi.ConnectionFactories;
import io.r2dbc.spi.ConnectionFactory;
import io.r2dbc.spi.ConnectionFactoryOptions;
import io.r2dbc.spi.ConnectionFactoryOptions.Builder;
import io.r2dbc.spi.Option;
import reactor.core.publisher.Flux;
import static io.r2dbc.spi.ConnectionFactoryOptions.*;
@Configuration
public class DatasourceConfig {
@Bean
public ConnectionFactory connectionFactory(R2DBCConfigurationProperties properties) {
ConnectionFactoryOptions baseOptions = ConnectionFactoryOptions.parse(properties.getUrl());
Builder ob = ConnectionFactoryOptions.builder().from(baseOptions);
if ( !StringUtil.isNullOrEmpty(properties.getUser())) {
ob = ob.option(USER, properties.getUser());
}
if ( !StringUtil.isNullOrEmpty(properties.getPassword())) {
ob = ob.option(PASSWORD, properties.getPassword());
}
ConnectionFactory cf = ConnectionFactories.get(ob.build());
return cf;
}
@Bean
public CommandLineRunner initDatabase(ConnectionFactory cf) {
return (args) ->
Flux.from(cf.create())
.flatMap(c ->
Flux.from(c.createBatch()
.add("drop table if exists Account")
.add("create table Account(" +
"id IDENTITY(1,1)," +
"iban varchar(80) not null," +
"balance DECIMAL(18,2) not null)")
.add("insert into Account(iban,balance)" +
"values('BR430120980198201982',100.00)")
.add("insert into Account(iban,balance)" +
"values('BR430120998729871000',250.00)")
.execute())
.doFinally((st) -> c.close())
)
.log()
.blockLast();
}
}

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@ -0,0 +1,58 @@
package org.baeldung.examples.r2dbc;
import javax.validation.constraints.NotEmpty;
import org.springframework.boot.context.properties.ConfigurationProperties;
@ConfigurationProperties(prefix = "r2dbc")
public class R2DBCConfigurationProperties {
@NotEmpty
private String url;
private String user;
private String password;
/**
* @return the url
*/
public String getUrl() {
return url;
}
/**
* @param url the url to set
*/
public void setUrl(String url) {
this.url = url;
}
/**
* @return the user
*/
public String getUser() {
return user;
}
/**
* @param user the user to set
*/
public void setUser(String user) {
this.user = user;
}
/**
* @return the password
*/
public String getPassword() {
return password;
}
/**
* @param password the password to set
*/
public void setPassword(String password) {
this.password = password;
}
}

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@ -0,0 +1,17 @@
package org.baeldung.examples.r2dbc;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
@SpringBootApplication
@EnableConfigurationProperties(R2DBCConfigurationProperties.class)
public class R2dbcExampleApplication {
public static void main(String[] args) {
SpringApplication.run(R2dbcExampleApplication.class, args);
}
}

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@ -0,0 +1,76 @@
package org.baeldung.examples.r2dbc;
import java.math.BigDecimal;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
import io.r2dbc.spi.Connection;
import io.r2dbc.spi.ConnectionFactory;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
@Component
public class ReactiveAccountDao {
private ConnectionFactory connectionFactory;
public ReactiveAccountDao(ConnectionFactory connectionFactory) {
this.connectionFactory = connectionFactory;
}
public Mono<Account> findById(long id) {
return Mono.from(connectionFactory.create())
.flatMap(c -> Mono.from(c.createStatement("select id,iban,balance from Account where id = $1")
.bind("$1", id)
.execute())
.doFinally((st) -> close(c)))
.map(result -> result.map((row, meta) ->
new Account(row.get("id", Long.class),
row.get("iban", String.class),
row.get("balance", BigDecimal.class))))
.flatMap( p -> Mono.from(p));
}
public Flux<Account> findAll() {
return Mono.from(connectionFactory.create())
.flatMap((c) -> Mono.from(c.createStatement("select id,iban,balance from Account")
.execute())
.doFinally((st) -> close(c)))
.flatMapMany(result -> Flux.from(result.map((row, meta) -> {
Account acc = new Account();
acc.setId(row.get("id", Long.class));
acc.setIban(row.get("iban", String.class));
acc.setBalance(row.get("balance", BigDecimal.class));
return acc;
})));
}
public Mono<Account> createAccount(Account account) {
return Mono.from(connectionFactory.create())
.flatMap(c -> Mono.from(c.beginTransaction())
.then(Mono.from(c.createStatement("insert into Account(iban,balance) values($1,$2)")
.bind("$1", account.getIban())
.bind("$2", account.getBalance())
.returnGeneratedValues("id")
.execute()))
.map(result -> result.map((row, meta) ->
new Account(row.get("id", Long.class),
account.getIban(),
account.getBalance())))
.flatMap(pub -> Mono.from(pub))
.delayUntil(r -> c.commitTransaction())
.doFinally((st) -> c.close()));
}
private <T> Mono<T> close(Connection connection) {
return Mono.from(connection.close())
.then(Mono.empty());
}
}

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@ -0,0 +1,5 @@
{"properties": [{
"name": "r2dbc",
"type": "org.baeldung.examples.r2dbc.R2DBCConfigurationProperties",
"description": "R2DBC Connection properties"
}]}

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@ -0,0 +1,13 @@
spring:
application:
name: r2dbc-test
# R2DBC URL
r2dbc:
url: r2dbc:h2:mem://./testdb

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@ -0,0 +1,102 @@
package org.baeldung.examples.r2dbc;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
import java.util.List;
import org.hamcrest.core.IsNull;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.reactive.server.WebTestClient;
import io.r2dbc.spi.ConnectionFactory;
import reactor.core.publisher.Flux;
@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class R2dbcExampleApplicationTests {
@Autowired
private WebTestClient webTestClient;
@Autowired
ConnectionFactory cf;
@Before
public void initDatabase() {
Flux.from(cf.create())
.flatMap(c ->
c.createBatch()
.add("drop table if exists Account")
.add("create table Account(id IDENTITY(1,1), iban varchar(80) not null, balance DECIMAL(18,2) not null)")
.add("insert into Account(iban,balance) values ( 'BR430120980198201982', 100.00 ) ")
.add("insert into Account(iban,balance) values ( 'BR430120998729871000', 250.00 ) ")
.execute()
)
.log()
.blockLast();
}
@Test
public void givenExistingAccountId_whenGetAccount_thenReturnExistingAccountInfo() {
webTestClient
.get()
.uri("/accounts/1")
.accept(MediaType.APPLICATION_JSON)
.exchange()
.expectStatus()
.isOk()
.expectBody(Account.class)
.value((acc) -> {
assertThat(acc.getId(),is(1l));
});
}
@Test
public void givenDatabaseHasSomeAccounts_whenGetAccount_thenReturnExistingAccounts() {
webTestClient
.get()
.uri("/accounts")
.accept(MediaType.APPLICATION_JSON)
.exchange()
.expectStatus()
.isOk()
.expectBody(List.class)
.value((accounts) -> {
assertThat(accounts.size(),not(is(0)));
});
}
@Test
public void givenNewAccountData_whenPostAccount_thenReturnNewAccountInfo() {
webTestClient
.post()
.uri("/accounts")
.syncBody(new Account(null,"BR4303010298012098", 151.00 ))
.accept(MediaType.APPLICATION_JSON)
.exchange()
.expectStatus()
.is2xxSuccessful()
.expectBody(Account.class)
.value((acc) -> {
assertThat(acc.getId(),is(notNullValue()));
});
}
}

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@ -0,0 +1,6 @@
# R2DBC Test configuration
r2dbc:
url: r2dbc:h2:mem://./testdb

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@ -42,6 +42,18 @@
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</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-data-jpa</artifactId>
</dependency>
</dependencies>
<dependencyManagement>

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@ -0,0 +1,10 @@
package org.baeldung.spring.cloud.vaultsample;
import org.baeldung.spring.cloud.vaultsample.domain.Account;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
@Repository
public interface AccountRepo extends JpaRepository<Account, Long>{
}

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@ -0,0 +1,27 @@
package org.baeldung.spring.cloud.vaultsample;
import org.baeldung.spring.cloud.vaultsample.domain.Account;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class AccountResource {
@Autowired
private AccountRepo repo;
@GetMapping("/account/{id}")
public ResponseEntity<Account> getAccount(@PathVariable("id") Long id) {
Account acc = repo.findById(id).orElse(null);
if ( acc != null ) {
return new ResponseEntity<Account>(acc, HttpStatus.OK);
}
else {
return new ResponseEntity<>(HttpStatus.NOT_FOUND);
}
}
}

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@ -0,0 +1,37 @@
/**
*
*/
package org.baeldung.spring.cloud.vaultsample;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
/**
* @author Philippe
*
*/
@RestController
public class SecretResource {
@Autowired
Environment env;
@GetMapping("/secret/{key}")
public ResponseEntity<String> readSecret(@PathVariable("key") String key) {
String value = env.getProperty(key);
if ( value != null ) {
return new ResponseEntity<String>(value, HttpStatus.OK);
}
else {
return new ResponseEntity<String>("not found", HttpStatus.NOT_FOUND);
}
}
}

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@ -0,0 +1,133 @@
/**
*
*/
package org.baeldung.spring.cloud.vaultsample.domain;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.validation.constraints.NotNull;
/**
* @author Philippe
*
*/
@Entity
@Table(name = "account")
public class Account {
@Id
private Long id;
@NotNull
private String name;
private Long branchId;
private Long customerId;
/**
* @return the id
*/
public Long getId() {
return id;
}
/**
* @param id the id to set
*/
public void setId(Long id) {
this.id = id;
}
/**
* @return the name
*/
public String getName() {
return name;
}
/**
* @param name the name to set
*/
public void setName(String name) {
this.name = name;
}
/**
* @return the branchId
*/
public Long getBranchId() {
return branchId;
}
/**
* @param branchId the branchId to set
*/
public void setBranchId(Long branchId) {
this.branchId = branchId;
}
/**
* @return the customerId
*/
public Long getCustomerId() {
return customerId;
}
/**
* @param customerId the customerId to set
*/
public void setCustomerId(Long customerId) {
this.customerId = customerId;
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((branchId == null) ? 0 : branchId.hashCode());
result = prime * result + ((customerId == null) ? 0 : customerId.hashCode());
result = prime * result + ((id == null) ? 0 : id.hashCode());
result = prime * result + ((name == null) ? 0 : name.hashCode());
return result;
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Account other = (Account) obj;
if (branchId == null) {
if (other.branchId != null)
return false;
} else if (!branchId.equals(other.branchId))
return false;
if (customerId == null) {
if (other.customerId != null)
return false;
} else if (!customerId.equals(other.customerId))
return false;
if (id == null) {
if (other.id != null)
return false;
} else if (!id.equals(other.id))
return false;
if (name == null) {
if (other.name != null)
return false;
} else if (!name.equals(other.name))
return false;
return true;
}
}

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@ -1,6 +1,11 @@
spring:
application:
name: fakebank
datasource:
url: jdbc:mysql://localhost:3306/fakebank
spring:
application:
name: fakebank
datasource:
url: jdbc:mysql://localhost:3306/fakebank?serverTimezone=GMT-3
hikari: connection-test-query: select 1
idle-timeout: 5000
max-lifetime: 120000
maximum-pool-size: 5
minimum-idle: 5

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@ -4,8 +4,6 @@ spring:
uri: https://localhost:8200
connection-timeout: 5000
read-timeout: 15000
config:
order: -10
ssl:
trust-store: classpath:/vault.jks
@ -15,17 +13,19 @@ spring:
enabled: true
application-name: fakebank
kv:
enabled: false
backend: kv
application-name: fakebank
# kv:
# enabled: false
# backend: kv
# application-name: fakebank
#
database:
enabled: true
role: fakebank-accounts-rw
# backend: database
# username-property: spring.datasource.username
# password-property: spring.datasource.password
backend: database
username-property: spring.datasource.username
password-property: spring.datasource.password
#
#

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@ -17,4 +17,7 @@ listener "tcp" {
tls_key_file = "./src/test/vault-config/localhost.key"
}
// Audit to stdout

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@ -5,16 +5,13 @@
2. Open another shell and execute the command below:
> vault operator init
Vault will output the unseal keys and root token: STORE THEM SAFELY !!!
Unseal Key 1: Iwvpd4IVofhcmQ2HEIPs5HMUbz4tz6JhqmLZ6+1MhAPx
Unseal Key 2: ANQDXUFGGtLtt6grX25YsdmeKELhM/ioKWzwFukJIe2f
Unseal Key 3: 8MHyzFnOvlwVQzdWYJ3BIN4xPDOn8a4VemZ/Qe5HgurU
Unseal Key 4: ywT9YR9OfxIpA4l1RniNNCvSZWAuNZsAEFRyD7aqFOrp
Unseal Key 5: q1c7M+lnlT72jGLoCH+jjri6KGSBhc5lCzlT0I1R9URU
Example output:
Unseal Key 1: OfCseaSZzjTZmrxhfx+5clKobwLGCNiJdAlfixSG9E3o
Unseal Key 2: iplVLPTHW0n0WL5XuI6QWwyNtWbKTek1SoKcG0gR7vdT
Unseal Key 3: K0TleK3OYUvWFF+uIDsQuf5a+/gkv1PtZ3O47ornzRoF
Unseal Key 4: +5zhysLAO4hIdZs0kiZpkrRovw11uQacfloiBwnZBJA/
Unseal Key 5: GDwSq18lXV3Cw4MoHsKIH137kuI0mdl36UiD9WxOdulc
Initial Root Token: d341fdaf-1cf9-936a-3c38-cf5eec94b5c0
Initial Root Token: dee7107a-8819-0719-62a3-cea3ea854589
...
@ -73,8 +70,8 @@ flush privileges;
> vault write database/roles/fakebank-accounts-rw ^
db_name=mysql-fakebank ^
creation_statements="CREATE USER '{{name}}'@'%' IDENTIFIED BY '{{password}}';GRANT SELECT,INSERT,UPDATE ON fakebank.* TO '{{name}}'@'%';" ^
default_ttl="1m" ^
max_ttl="2m"
default_ttl="5m" ^
max_ttl="30m"
=== Get credentials
> vault read database/creds/fakebank-accounts-rw

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@ -1,7 +1,7 @@
call %~dp0%/vault-env.bat
vault operator unseal OfCseaSZzjTZmrxhfx+5clKobwLGCNiJdAlfixSG9E3o
vault operator unseal iplVLPTHW0n0WL5XuI6QWwyNtWbKTek1SoKcG0gR7vdT
vault operator unseal iplVLPTHW0n0WL5XuI6QWwyNtWbKTek1SoKcG0gR7vdT
vault operator unseal K0TleK3OYUvWFF+uIDsQuf5a+/gkv1PtZ3O47ornzRoF
vault operator unseal Iwvpd4IVofhcmQ2HEIPs5HMUbz4tz6JhqmLZ6+1MhAPx
vault operator unseal ANQDXUFGGtLtt6grX25YsdmeKELhM/ioKWzwFukJIe2f
vault operator unseal 8MHyzFnOvlwVQzdWYJ3BIN4xPDOn8a4VemZ/Qe5HgurU