히스트릭스 폴백전략 및 벌그헤드 테스트를 위한 bbs 모듈 추가

bbs-service/.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/

bbs-service/.mvn/wrapper/MavenWrapperDownloader.java

@@ -0,0 +1,118 @@
+/*
+ * Copyright 2007-present the original author or 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.
+ */
+
+import java.net.*;
+import java.io.*;
+import java.nio.channels.*;
+import java.util.Properties;
+
+public class MavenWrapperDownloader {
+
+    private static final String WRAPPER_VERSION = "0.5.6";
+    /**
+     * 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/"
+            + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".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 directory '" + 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 {
+        if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) {
+            String username = System.getenv("MVNW_USERNAME");
+            char[] password = System.getenv("MVNW_PASSWORD").toCharArray();
+            Authenticator.setDefault(new Authenticator() {
+                @Override
+                protected PasswordAuthentication getPasswordAuthentication() {
+                    return new PasswordAuthentication(username, password);
+                }
+            });
+        }
+        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();
+    }
+
+}

bbs-service/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,2 @@
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

bbs-service/mvnw

@@ -0,0 +1,310 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Maven Start Up Batch script
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   M2_HOME - location of maven2's installed home dir
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$HOME/.mavenrc" ] ; then
+    . "$HOME/.mavenrc"
+  fi
+
+fi
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  MINGW*) mingw=true;;
+  Darwin*) darwin=true
+    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+    if [ -z "$JAVA_HOME" ]; then
+      if [ -x "/usr/libexec/java_home" ]; then
+        export JAVA_HOME="`/usr/libexec/java_home`"
+      else
+        export JAVA_HOME="/Library/Java/Home"
+      fi
+    fi
+    ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+if [ -z "$M2_HOME" ] ; then
+  ## resolve links - $0 may be a link to maven's home
+  PRG="$0"
+
+  # need this for relative symlinks
+  while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+      PRG="$link"
+    else
+      PRG="`dirname "$PRG"`/$link"
+    fi
+  done
+
+  saveddir=`pwd`
+
+  M2_HOME=`dirname "$PRG"`/..
+
+  # make it fully qualified
+  M2_HOME=`cd "$M2_HOME" && pwd`
+
+  cd "$saveddir"
+  # echo Using m2 at $M2_HOME
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --unix "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# For Mingw, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME="`(cd "$M2_HOME"; pwd)`"
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="`which javac`"
+  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=`which readlink`
+    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+      if $darwin ; then
+        javaHome="`dirname \"$javaExecutable\"`"
+        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+      else
+        javaExecutable="`readlink -f \"$javaExecutable\"`"
+      fi
+      javaHome="`dirname \"$javaExecutable\"`"
+      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD="`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
+    if [ -n "$MVNW_REPOURL" ]; then
+      jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    else
+      jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    fi
+    while IFS="=" read key value; do
+      case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
+      esac
+    done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Downloading from: $jarUrl"
+    fi
+    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+    if $cygwin; then
+      wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
+    fi
+
+    if command -v wget > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found wget ... using wget"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            wget "$jarUrl" -O "$wrapperJarPath"
+        else
+            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath"
+        fi
+    elif command -v curl > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found curl ... using curl"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            curl -o "$wrapperJarPath" "$jarUrl" -f
+        else
+            curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
+        fi
+
+    else
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Falling back to using Java to download"
+        fi
+        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+        # For Cygwin, switch paths to Windows format before running javac
+        if $cygwin; then
+          javaClass=`cygpath --path --windows "$javaClass"`
+        fi
+        if [ -e "$javaClass" ]; then
+            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Compiling MavenWrapperDownloader.java ..."
+                fi
+                # Compiling the Java class
+                ("$JAVA_HOME/bin/javac" "$javaClass")
+            fi
+            if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                # Running the downloader
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Running MavenWrapperDownloader.java ..."
+                fi
+                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
+            fi
+        fi
+    fi
+fi
+##########################################################################################
+# End of extension
+##########################################################################################
+
+export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
+if [ "$MVNW_VERBOSE" = true ]; then
+  echo $MAVEN_PROJECTBASEDIR
+fi
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --path --windows "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$MAVEN_PROJECTBASEDIR" ] &&
+    MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+fi
+
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+export MAVEN_CMD_LINE_ARGS
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

bbs-service/mvnw.cmd

@@ -0,0 +1,182 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    https://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%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/0.5.6/maven-wrapper-0.5.6.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% (
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
+) else (
+    if not "%MVNW_REPOURL%" == "" (
+        SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %DOWNLOAD_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
+)
+@REM End of extension
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%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%

bbs-service/pom.xml

@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <artifactId>assucloud</artifactId>
+        <groupId>com.assu.cloud</groupId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath> <!-- lookup parent from repository -->
+    </parent>
+
+    <groupId>com.assu.cloud</groupId>
+    <artifactId>bbs-service</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>bbs-service</name>
+    <description>BBS Microservice</description>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <java.version>11</java.version>
+        <spring-cloud.version>Hoxton.SR8</spring-cloud.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-actuator</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-rsa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
+        </dependency>
+        <!-- 히스트릭스 -->
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.junit.vintage</groupId>
+                    <artifactId>junit-vintage-engine</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+    </dependencies>
+
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${spring-cloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

bbs-service/src/main/java/com/assu/cloud/bbsservice/BbsServiceApplication.java

@@ -0,0 +1,39 @@
+package com.assu.cloud.bbsservice;
+
+import com.assu.cloud.bbsservice.utils.CustomContextInterceptor;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
+import org.springframework.cloud.client.loadbalancer.LoadBalanced;
+import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
+import org.springframework.context.annotation.Bean;
+import org.springframework.web.client.RestTemplate;
+
+import java.util.Collections;
+import java.util.List;
+
+@SpringBootApplication
+@EnableEurekaClient
+@EnableCircuitBreaker           // Hystrix
+public class BbsServiceApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(BbsServiceApplication.class, args);
+    }
+    // 기본 RestTemplate
+    @LoadBalanced       // 스프링 클라우드가 리본이 지원하는 RestTemplate 클래스 생성하도록 지시
+    @Bean
+    public RestTemplate getRestTemplate() {
+        // return new RestTemplate();
+        RestTemplate template = new RestTemplate();
+        List interceptors = template.getInterceptors();
+
+        if (interceptors == null) {
+            template.setInterceptors(Collections.singletonList(new CustomContextInterceptor()));
+        } else {
+            interceptors.add(new CustomContextInterceptor());
+            template.setInterceptors(interceptors);
+        }
+        return template;
+    }
+}

bbs-service/src/main/java/com/assu/cloud/bbsservice/controller/BbsController.java

@@ -0,0 +1,21 @@
+package com.assu.cloud.bbsservice.controller;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.servlet.ServletRequest;
+
+@RestController
+@RequestMapping("/bbs")
+public class BbsController {
+    private static final Logger logger = LoggerFactory.getLogger(BbsController.class);
+
+    @GetMapping(value = "gift/{name}")
+    public String gift(@PathVariable("name") String gift) {
+        return "[BBS] Gift is " + gift;
+    }
+}

bbs-service/src/main/java/com/assu/cloud/bbsservice/utils/CustomContext.java

@@ -0,0 +1,28 @@
+package com.assu.cloud.bbsservice.utils;
+
+import org.springframework.stereotype.Component;
+
+/**
+ * 서비스가 쉽게 액세스할 수 있는 HTTP 헤더를 만들어 저장하는 클래스
+ * HTTP 요청에서 추출한 값을 보관하는 POJO
+ */
+@Component
+public class CustomContext {
+    public static final String CORRELATION_ID = "assu-correlation-id";
+    //public static final String AUTH_TOKEN     = "Authorization";
+
+    private static final ThreadLocal<String> correlationId = new ThreadLocal<>();
+    //private static final ThreadLocal<String> authToken = new ThreadLocal<>();
+
+    // 그 외 필요한 항목 넣을 수 있음 (인증 토큰 등...)
+
+
+    public static String getCorrelationId() {
+        return correlationId.get();
+    }
+
+    public static void setCorrelationId(String cid) {
+        correlationId.set(cid);
+    }
+
+}

bbs-service/src/main/java/com/assu/cloud/bbsservice/utils/CustomContextFilter.java

@@ -0,0 +1,44 @@
+package com.assu.cloud.bbsservice.utils;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.stereotype.Component;
+
+import javax.servlet.*;
+import javax.servlet.http.HttpServletRequest;
+import java.io.IOException;
+
+/**
+ * 유입되는 HTTP 요청을 가로채서 필요한 헤더값을 CustomContext 에 매핑
+ *
+ * REST 서비스에 대한 모든 HTTP 요청을 가로채서 컨텍스트 정보(상관관계 ID 등)를 추출해 CustomContext 클래스에 매핑하는 HTTP 서블릿 필터
+ * (즉, HTTP 헤더에서 인증 토큰과 상관관계 ID 파싱)
+ *
+ * REST 서비스 호출 시 코드에서 CustomContext 액세스가 필요할 때마다 ThreadLocal 변수에서 검색해 읽어올 수 있음
+ */
+@Component
+public class CustomContextFilter implements Filter {
+
+    private static final Logger logger = LoggerFactory.getLogger(CustomContextFilter.class);
+
+    @Override
+    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
+        HttpServletRequest httpServletRequest = (HttpServletRequest) servletRequest;
+
+        // HTTP 호출 헤더에서 상관관계 ID 를 검색하여 CustomContextHolder 의 CustomContext 클래스에 설정
+        CustomContextHolder.getContext().setCorrelationId(httpServletRequest.getHeader(CustomContext.CORRELATION_ID));
+
+        // 그 외 필요한 항목 넣을 수 있음 (인증 토큰 등...)
+        //CustomContextHolder.getContext().setAuthToken(httpServletRequest.getHeader(CustomContext.AUTH_TOKEN));
+
+        logger.debug("상관관계 ID {} 로 실행된 동적 라우팅", CustomContextHolder.getContext().getCorrelationId());
+
+        filterChain.doFilter(httpServletRequest, servletResponse);
+    }
+
+    @Override
+    public void init(FilterConfig filterConfig) {}
+
+    @Override
+    public void destroy() {}
+}

bbs-service/src/main/java/com/assu/cloud/bbsservice/utils/CustomContextHolder.java

@@ -0,0 +1,37 @@
+package com.assu.cloud.bbsservice.utils;
+
+import org.springframework.util.Assert;
+
+/**
+ * ThreadLocal 저장소에 CustomContext 를 저장하는 클래스
+ *      * ThreadLocal 변수: 사용자 요청을 처리하는 해당 스레드에서 호출되는 모든 메서드에서 액세스 가능한 변수
+ *
+ * CustomContext 가 ThreadLocal 저장소에 저장되면 요청으로 실행된 모든 코드에서 CustomContextHolder 의 CustomContext 객체 사용 가능
+ */
+public class CustomContextHolder {
+
+    /** 정적 ThreadLocal 변수에 저장되는 CustomContext */
+    private static final ThreadLocal<CustomContext> customContext = new ThreadLocal<>();
+
+    /**
+     * CustomContext 객체를 사용하기 위해 조회해오는 메서드
+     */
+    public static final CustomContext getContext() {
+        CustomContext ctx = customContext.get();
+
+        if (ctx == null) {
+            ctx = createEmptyContext();
+            customContext.set(ctx);
+        }
+        return customContext.get();
+    }
+
+    public static final void setContext(CustomContext ctx) {
+        Assert.notNull(ctx, "CustomContext is null.");
+        customContext.set(ctx);
+    }
+
+    public static final CustomContext createEmptyContext() {
+        return new CustomContext();
+    }
+}

bbs-service/src/main/java/com/assu/cloud/bbsservice/utils/CustomContextInterceptor.java

@@ -0,0 +1,29 @@
+package com.assu.cloud.bbsservice.utils;
+
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpRequest;
+import org.springframework.http.client.ClientHttpRequestExecution;
+import org.springframework.http.client.ClientHttpRequestInterceptor;
+import org.springframework.http.client.ClientHttpResponse;
+
+import java.io.IOException;
+
+/**
+ * RestTemplate 인스턴스에서 실행되는 모든 HTTP 기반 서비스 발신 요청에 상관관계 ID 삽입 + 토큰
+ */
+public class CustomContextInterceptor implements ClientHttpRequestInterceptor {
+    /**
+     * RestTemplate 로 실제 HTTP 서비스 호출 전 intercept 메서드 호출
+     */
+    @Override
+    public ClientHttpResponse intercept(HttpRequest httpRequest, byte[] bytes, ClientHttpRequestExecution clientHttpRequestExecution) throws IOException {
+        HttpHeaders headers = httpRequest.getHeaders();
+
+        headers.add(CustomContext.CORRELATION_ID, CustomContextHolder.getContext().getCorrelationId());
+
+        // 그 외 필요한 항목 넣을 수 있음 (인증 토큰 등...)
+        //headers.add(CustomContext.AUTH_TOKEN, CustomContextHolder.getContext().getAuthToken());     // HTTP 헤더에 인증 토큰 추가
+
+        return clientHttpRequestExecution.execute(httpRequest, bytes);
+    }
+}

bbs-service/src/main/resources/application.yaml

@@ -0,0 +1,48 @@
+spring:
+  application:
+    name: bbs-service    # 서비스 ID (컨피그 클라이언트가 어떤 서비스를 조회하는지 매핑)
+  profiles:
+    active: default         # 서비스가 실행할 기본 프로파일
+server:
+  port: 8060
+your.name: "BBS DEFAULT..."
+management:
+  endpoints:
+    web:
+      exposure:
+        include: "*"
+  endpoint:
+    shutdown:
+      enabled: true
+eureka:
+  instance:
+    prefer-ip-address: true   # 서비스 이름 대신 IP 주소 등록
+    lease-renewal-interval-in-seconds: 3  # 디스커버리한테 1초마다 하트비트 전송 (디폴트 30초)
+    lease-expiration-duration-in-seconds: 2 # 디스커버리는 서비스 등록 해제 하기 전에 마지막 하트비트에서부터 2초 기다림 (디폴트 90초)
+  client:
+    register-with-eureka: true    # 유레카 서버에 서비스 등록
+    fetch-registry: true          # 레지스트리 정보를 로컬에 캐싱
+    serviceUrl:
+      defaultZone: http://peer1:8762/eureka/
+    registry-fetch-interval-seconds: 3    # 서비스 목록을 3초마다 캐싱
+logging:
+  level:
+    com.netflix: WARN
+    org.springframework.web: WARN
+    com.assu.cloud: DEBUG
+service:
+  id:
+    zuul: zuulserver
+security:
+  oauth2:
+    resource:
+      user-info-uri: http://localhost:8901/auth/user    # OAuth2 콜백 URL
+signing:
+  key: assusingkey
+hystrix:
+  command:
+    default:    # 유레카 서비스 ID
+      execution:
+        isolation:
+          thread:
+            timeoutInMilliseconds: 3000  # 히스트릭스 타임아웃 3초로 설정 (기본 1초, ribbon 의 타임아웃보다 커야 기대하는 대로 동작함)

bbs-service/src/test/java/com/assu/cloud/bbsservice/BbsServiceApplicationTests.java

@@ -0,0 +1,13 @@
+package com.assu.cloud.bbsservice;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class BbsServiceApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}

event-service/src/main/java/com/assu/cloud/eventservice/controller/EventController.java

@@ -47,11 +47,11 @@ public class EventController {
     }
 
     /**
-     * 회원 서비스에서 호출할 메서드
+     * 회원 서비스에서 호출할 메서드 (fallback test)
      */
     @GetMapping(value = "gift/{name}")
     public String gift(@PathVariable("name") String gift) {
-        sleep();
+        //sleep();
         return "[EVENT] Gift is " + gift;
     }
 

member-service/src/main/java/com/assu/cloud/memberservice/client/BbsRestTemplateClient.java

@@ -0,0 +1,35 @@
+package com.assu.cloud.memberservice.client;
+
+import org.springframework.http.HttpMethod;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestTemplate;
+
+@Component
+public class BbsRestTemplateClient {
+
+    private final RestTemplate restTemplate;
+
+    public BbsRestTemplateClient(RestTemplate restTemplate) {
+        this.restTemplate = restTemplate;
+    }
+
+    String ZUUL_URL_PREFIX = "/api/bbs/bbs/";      // bbs 서비스의 주울 라우팅경로와 bbs 클래스 주소
+
+    public String gift(String name) {
+        /*ResponseEntity<EventGift> restExchange =
+                restTemplate.exchange(
+                    "http://event-service/event/gift/{name}",
+                    HttpMethod.GET,
+                    null, EventGift.class, name
+                );*/
+        ResponseEntity<String> restExchange =
+                restTemplate.exchange(
+                        "http://zuulserver" + ZUUL_URL_PREFIX + "gift/{name}",   // http://localhost:5555/api/bbs/bbs/gift/flower
+                        HttpMethod.GET,
+                        null, String.class, name
+                );
+
+        return restExchange.getBody();
+    }
+}

member-service/src/main/java/com/assu/cloud/memberservice/controller/MemberController.java

@@ -1,5 +1,6 @@
 package com.assu.cloud.memberservice.controller;
 
+import com.assu.cloud.memberservice.client.BbsRestTemplateClient;
 import com.assu.cloud.memberservice.client.EventRestTemplateClient;
 import com.assu.cloud.memberservice.config.CustomConfig;
 import com.assu.cloud.memberservice.event.source.SimpleSourceBean;
@@ -23,11 +24,13 @@ public class MemberController {
 
     private final CustomConfig customConfig;
     private final EventRestTemplateClient eventRestTemplateClient;
+    private final BbsRestTemplateClient bbsRestTemplateClient;
     private final SimpleSourceBean simpleSourceBean;
 
-    public MemberController(CustomConfig customConfig, EventRestTemplateClient eventRestTemplateClient, SimpleSourceBean simpleSourceBean) {
+    public MemberController(CustomConfig customConfig, EventRestTemplateClient eventRestTemplateClient, BbsRestTemplateClient bbsRestTemplateClient, SimpleSourceBean simpleSourceBean) {
         this.customConfig = customConfig;
         this.eventRestTemplateClient = eventRestTemplateClient;
+        this.bbsRestTemplateClient = bbsRestTemplateClient;
         this.simpleSourceBean = simpleSourceBean;
     }
 
@@ -114,11 +117,32 @@ public class MemberController {
             commandProperties = {
                     @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",
                                      value="5000")})   // 회로차단기의 타임아웃 시간을 5초로 설정*/
+    @HystrixCommand(fallbackMethod = "timeoutFallback")
     @GetMapping(value = "timeout/{name}")
     public String timeout(ServletRequest req, @PathVariable("name") String name) {
         return "[MEMBER] " + eventRestTemplateClient.gift(name) + " / port is " + req.getServerPort();
     }
 
+    /**
+     * timeout 메서드의 폴백 메서드
+     */
+    public String timeoutFallback(ServletRequest req, @PathVariable("name") String name) {
+        return "This is timeoutFallback test.";
+    }
+
+    @HystrixCommand( //fallbackMethod = "timeoutFallback")
+            threadPoolKey = "mainThreadPool",
+            threadPoolProperties =
+                    {@HystrixProperty(name = "coreSize", value = "30"),      // 스레드풀의 스레드 갯수
+                     @HystrixProperty(name = "maxQueueSize", value = "10")}   // 스레드 풀 앞에 배치할 큐와 큐에 넣을 요청 수
+    )
+    @GetMapping(value = "bulkhead/{name}")
+    public String bulkhead(ServletRequest req, @PathVariable("name") String name) {
+        String eventApi = eventRestTemplateClient.gift(name);
+        String bbsApi = bbsRestTemplateClient.gift(name);
+        return "[MEMBER] " + eventApi + "===" + bbsApi;
+    }
+
     /**
      * 3번 중 1번은 sleep()
      */

member-service/src/main/resources/application.yaml

@@ -55,3 +55,10 @@ security:
       user-info-uri: http://localhost:8901/auth/user    # OAuth2 콜백 URL
 signing:
   key: assusingkey
+hystrix:
+  command:
+    default:    # 유레카 서비스 ID
+      execution:
+        isolation:
+          thread:
+            timeoutInMilliseconds: 3000  # 히스트릭스 타임아웃 3초로 설정 (기본 1초, ribbon 의 타임아웃보다 커야 기대하는 대로 동작함)

pom.xml

@@ -23,6 +23,7 @@
     <module>eurekaserver</module>
     <module>zuulserver</module>
     <module>auth-service</module>
+    <module>bbs-service</module>
   </modules>
 
   <build>

zuulserver/src/main/resources/application.yaml

@@ -37,6 +37,7 @@ zuul:
   routes:
     event-service: /evt/**
     member-service: /mb/**
+    bbs-service: /bbs/**
   sensitive-headers: Cookie,Set-Cookie    # 주울이 하위 서비스에 전파하지 않는 헤더 차단 목록 (디폴트는 Cookie, Set-Cookie, Authorization)
 hystrix:
   command: