added example for log tracing with sping cloud sleuth

settings.gradle

@@ -5,4 +5,6 @@ include 'spring-data-rest-springfox'
 // pact-feign-consumer must run before pact-spring-data-rest-provider because it creates a shared pact file
 include 'pact-feign-consumer'
 include 'pact-spring-data-rest-provider'
+include 'sleuth-primary-service'
+include 'sleuth-secondary-service'
 

sleuth-primary-service/.gitignore

@@ -0,0 +1,25 @@
+.gradle
+/build/
+!gradle/wrapper/gradle-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+nbproject/private/
+build/
+nbbuild/
+dist/
+nbdist/
+.nb-gradle/

sleuth-primary-service/README.md

@@ -0,0 +1,3 @@
+# Log Tracing with Spring Cloud Sleuth
+ 
+TBD

sleuth-primary-service/build.gradle

@@ -0,0 +1,44 @@
+buildscript {
+	ext {
+		springBootVersion = '1.5.4.RELEASE'
+	}
+	repositories {
+		mavenCentral()
+	}
+	dependencies {
+		classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
+	}
+}
+
+apply plugin: 'java'
+apply plugin: 'eclipse'
+apply plugin: 'org.springframework.boot'
+
+version = '0.0.1-SNAPSHOT'
+sourceCompatibility = 1.8
+
+repositories {
+	mavenLocal()
+	mavenCentral()
+}
+
+ext {
+	springCloudVersion = 'Dalston.SR2'
+}
+
+dependencies {
+	compile('org.springframework.cloud:spring-cloud-starter-feign')
+	compile('org.springframework.cloud:spring-cloud-starter-sleuth')
+	compile('org.springframework.boot:spring-boot-starter-web')
+	testCompile('org.springframework.boot:spring-boot-starter-test')
+}
+
+dependencyManagement {
+	imports {
+		mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
+	}
+}
+
+bootRun{
+	jvmArgs = ["-Xdebug", "-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5006"]
+}

sleuth-primary-service/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.5.1-bin.zip

sleuth-primary-service/gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+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"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save ( ) {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

sleuth-primary-service/gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

sleuth-primary-service/src/main/java/com/example/demo/Address.java

@@ -0,0 +1,24 @@
+package com.example.demo;
+
+public class Address {
+
+	private long id;
+
+	private String street;
+
+	public long getId() {
+		return id;
+	}
+
+	public void setId(long id) {
+		this.id = id;
+	}
+
+	public String getStreet() {
+		return street;
+	}
+
+	public void setStreet(String street) {
+		this.street = street;
+	}
+}

sleuth-primary-service/src/main/java/com/example/demo/AddressClient.java

@@ -0,0 +1,14 @@
+package com.example.demo;
+
+import org.springframework.cloud.netflix.feign.FeignClient;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+
+@FeignClient(value = "addresses", path = "/addresses")
+public interface AddressClient {
+
+  @RequestMapping(method = RequestMethod.GET, path = "/{id}")
+  Address getAddressForCustomerId(@PathVariable("id") long id);
+
+}

sleuth-primary-service/src/main/java/com/example/demo/Controller.java

@@ -0,0 +1,33 @@
+package com.example.demo;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class Controller {
+
+  private CustomerClient customerClient;
+
+  private AddressClient addressClient;
+
+  private Logger logger = LoggerFactory.getLogger(Controller.class);
+
+  @Autowired
+  public Controller(CustomerClient customerClient, AddressClient addressClient) {
+    this.customerClient = customerClient;
+    this.addressClient = addressClient;
+  }
+
+  @GetMapping(path = "customers-with-address/{id}")
+  public CustomerAndAddress getCustomerWithAddress(@PathVariable("id") long customerId){
+    logger.info("COLLECTING CUSTOMER AND ADDRESS WITH ID {} FROM SECONDARY SERVICE", customerId);
+    Customer customer = customerClient.getCustomer(customerId);
+    Address address = addressClient.getAddressForCustomerId(customerId);
+    return new CustomerAndAddress(customer, address);
+  }
+
+}

sleuth-primary-service/src/main/java/com/example/demo/Customer.java

@@ -0,0 +1,24 @@
+package com.example.demo;
+
+public class Customer {
+
+	private long id;
+
+	private String name;
+
+	public long getId() {
+		return id;
+	}
+
+	public void setId(long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+}

sleuth-primary-service/src/main/java/com/example/demo/CustomerAndAddress.java

@@ -0,0 +1,29 @@
+package com.example.demo;
+
+public class CustomerAndAddress {
+
+  private Customer customer;
+
+  private Address address;
+
+  public CustomerAndAddress(Customer customer, Address address) {
+    this.customer = customer;
+    this.address = address;
+  }
+
+  public Customer getCustomer() {
+    return customer;
+  }
+
+  public void setCustomer(Customer customer) {
+    this.customer = customer;
+  }
+
+  public Address getAddress() {
+    return address;
+  }
+
+  public void setAddress(Address address) {
+    this.address = address;
+  }
+}

sleuth-primary-service/src/main/java/com/example/demo/CustomerClient.java

@@ -0,0 +1,14 @@
+package com.example.demo;
+
+import org.springframework.cloud.netflix.feign.FeignClient;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+
+@FeignClient(value = "customers", path = "/customers")
+public interface CustomerClient {
+
+	@RequestMapping(method = RequestMethod.GET, value = "/{id}")
+	Customer getCustomer(@PathVariable("id") long id);
+
+}

sleuth-primary-service/src/main/java/com/example/demo/DemoApplication.java

@@ -0,0 +1,14 @@
+package com.example.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.netflix.feign.EnableFeignClients;
+
+@SpringBootApplication
+@EnableFeignClients
+public class DemoApplication {
+
+  public static void main(String[] args) {
+    SpringApplication.run(DemoApplication.class, args);
+  }
+}

sleuth-primary-service/src/main/java/com/example/demo/FeignConfiguration.java

@@ -0,0 +1,15 @@
+package com.example.demo;
+
+import feign.Logger;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+public class FeignConfiguration {
+
+	@Bean
+	public Logger.Level logLevel(){
+		return Logger.Level.FULL;
+	}
+
+}

sleuth-primary-service/src/main/resources/application.yml

@@ -0,0 +1,22 @@
+server.port: 8080
+
+logging.level.com.example.demo.CustomerClient: DEBUG
+logging.level.com.example.demo.AddressClient: DEBUG
+logging.level.org.hibernate.SQL: DEBUG
+
+customers:
+  ribbon:
+    eureka:
+      enabled: false
+    listOfServers: localhost:8081
+
+addresses:
+  ribbon:
+    eureka:
+      enabled: false
+    listOfServers: localhost:8081
+
+spring:
+  output:
+    ansi:
+      enabled: always

sleuth-primary-service/src/main/resources/bootstrap.properties

@@ -0,0 +1,2 @@
+# this file is loaded by Spring Cloud before application.properties
+spring.application.name=sleuth-primary-service

sleuth-primary-service/src/main/resources/logback-spring.xml

@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <include resource="org/springframework/boot/logging/logback/defaults.xml"/>
+    ​
+    <springProperty scope="context" name="springAppName" source="spring.application.name"/>
+    <!-- Example for logging into the build folder of your project -->
+    <property name="LOG_FILE" value="${BUILD_FOLDER:-build}/${springAppName}"/>​
+
+    <!-- You can override this to have a custom pattern -->
+    <property name="CONSOLE_LOG_PATTERN"
+              value="%d{yyyy-MM-dd HH:mm:ss.SSS} %5p [${springAppName},%X{X-B3-TraceId:-},%X{X-B3-SpanId:-},%X{X-Span-Export:-}] ${PID:- } --- [%15.15t] %-40.40logger{39} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}"/>
+
+    <!-- Appender to log to console -->
+    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
+        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
+            <!-- Minimum logging level to be presented in the console logs-->
+            <level>DEBUG</level>
+        </filter>
+        <encoder>
+            <pattern>${CONSOLE_LOG_PATTERN}</pattern>
+            <charset>utf8</charset>
+        </encoder>
+    </appender>
+
+    <!-- Appender to log to file -->​
+    <appender name="flatfile" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>${LOG_FILE}</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
+            <fileNamePattern>${LOG_FILE}.%d{yyyy-MM-dd}.gz</fileNamePattern>
+            <maxHistory>7</maxHistory>
+        </rollingPolicy>
+        <encoder>
+            <pattern>${CONSOLE_LOG_PATTERN}</pattern>
+            <charset>utf8</charset>
+        </encoder>
+    </appender>
+    ​
+    <!-- Appender to log to file in a JSON format -->
+    <!--<appender name="logstash" class="ch.qos.logback.core.rolling.RollingFileAppender">-->
+        <!--<file>${LOG_FILE}.json</file>-->
+        <!--<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">-->
+            <!--<fileNamePattern>${LOG_FILE}.json.%d{yyyy-MM-dd}.gz</fileNamePattern>-->
+            <!--<maxHistory>7</maxHistory>-->
+        <!--</rollingPolicy>-->
+        <!--<encoder class="net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder">-->
+            <!--<providers>-->
+                <!--<timestamp>-->
+                    <!--<timeZone>UTC</timeZone>-->
+                <!--</timestamp>-->
+                <!--<pattern>-->
+                    <!--<pattern>-->
+                        <!--{-->
+                        <!--"severity": "%level",-->
+                        <!--"service": "${springAppName:-}",-->
+                        <!--"trace": "%X{X-B3-TraceId:-}",-->
+                        <!--"span": "%X{X-B3-SpanId:-}",-->
+                        <!--"parent": "%X{X-B3-ParentSpanId:-}",-->
+                        <!--"exportable": "%X{X-Span-Export:-}",-->
+                        <!--"pid": "${PID:-}",-->
+                        <!--"thread": "%thread",-->
+                        <!--"class": "%logger{40}",-->
+                        <!--"rest": "%message"-->
+                        <!--}-->
+                    <!--</pattern>-->
+                <!--</pattern>-->
+            <!--</providers>-->
+        <!--</encoder>-->
+    <!--</appender>-->
+    ​
+    <root level="INFO">
+        <appender-ref ref="console"/>
+        <!-- uncomment this to have also JSON logs -->
+        <!--<appender-ref ref="logstash"/>-->
+        <appender-ref ref="flatfile"/>
+    </root>
+</configuration>

sleuth-secondary-service/.gitignore

@@ -0,0 +1,25 @@
+.gradle
+/build/
+!gradle/wrapper/gradle-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+nbproject/private/
+build/
+nbbuild/
+dist/
+nbdist/
+.nb-gradle/

sleuth-secondary-service/README.md

@@ -0,0 +1,3 @@
+# Log Tracing with Spring Cloud Sleuth
+ 
+TBD

sleuth-secondary-service/build.gradle

@@ -0,0 +1,43 @@
+buildscript {
+	ext {
+		springBootVersion = '1.5.4.RELEASE'
+	}
+	repositories {
+		mavenCentral()
+	}
+	dependencies {
+		classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
+	}
+}
+
+apply plugin: 'java'
+apply plugin: 'eclipse'
+apply plugin: 'org.springframework.boot'
+
+version = '0.0.1-SNAPSHOT'
+sourceCompatibility = 1.8
+
+repositories {
+	mavenLocal()
+	mavenCentral()
+}
+
+ext {
+	springCloudVersion = 'Dalston.SR2'
+}
+
+dependencies {
+	compile('org.springframework.cloud:spring-cloud-starter-sleuth')
+	compile('org.springframework.boot:spring-boot-starter-web')
+	testCompile('org.springframework.boot:spring-boot-starter-test')
+}
+
+dependencyManagement {
+	imports {
+		mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
+	}
+}
+
+bootRun{
+	jvmArgs = ["-Xdebug", "-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5007"]
+}

sleuth-secondary-service/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.5.1-bin.zip

sleuth-secondary-service/gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+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"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save ( ) {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

sleuth-secondary-service/gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

sleuth-secondary-service/src/main/java/com/example/demo/Address.java

@@ -0,0 +1,24 @@
+package com.example.demo;
+
+public class Address {
+
+	private long id;
+
+	private String street;
+
+	public long getId() {
+		return id;
+	}
+
+	public void setId(long id) {
+		this.id = id;
+	}
+
+	public String getStreet() {
+		return street;
+	}
+
+	public void setStreet(String street) {
+		this.street = street;
+	}
+}

sleuth-secondary-service/src/main/java/com/example/demo/Controller.java

@@ -0,0 +1,148 @@
+package com.example.demo;
+
+import java.util.Arrays;
+import java.util.List;
+
+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.RestController;
+
+@RestController
+public class Controller {
+
+  private Logger logger = LoggerFactory.getLogger(Controller.class);
+
+  @GetMapping(path = "customers/{id}")
+  public ResponseEntity<Customer> getCustomer(@PathVariable("id") long customerId) {
+    logger.info("GETTING CUSTOMER WITH ID {}", customerId);
+    if (customerId < 0 || customerId > NAMES.size() - 1) {
+      return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+    }
+    Customer customer = new Customer();
+    customer.setId(customerId);
+    customer.setName(NAMES.get((int) customerId));
+    return new ResponseEntity<>(customer, HttpStatus.OK);
+  }
+
+  @GetMapping(path = "addresses/{id}")
+  public ResponseEntity<Address> getAddress(@PathVariable("id") long customerId) {
+    logger.info("GETTING ADDRESS FOR CUSTOMER WITH ID {}", customerId);
+    if (customerId < 0 || customerId > NAMES.size() - 1) {
+      return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+    }
+    Address address = new Address();
+    address.setId(customerId);
+    address.setStreet(STREETS.get((int) customerId));
+    return new ResponseEntity<>(address, HttpStatus.OK);
+  }
+
+  private static final List<String> STREETS = Arrays.asList(
+          "Jefferson Street",
+          "Cambridge Road",
+          "Olive Street",
+          "Old York Road",
+          "Aspen Drive",
+          "Cherry Lane",
+          "10th Street",
+          "Pennsylvania Avenue",
+          "Central Avenue",
+          "8th Street West",
+          "Route 11",
+          "Street Road",
+          "Prospect Street",
+          "Devon Road",
+          "Forest Avenue",
+          "Elm Avenue",
+          "Heather Court",
+          "Route 202",
+          "Willow Drive",
+          "Evergreen Lane",
+          "Windsor Drive",
+          "Mulberry Street",
+          "2nd Street North",
+          "Sheffield Drive",
+          "Ashley Court",
+          "Valley Road",
+          "Spruce Street",
+          "Wood Street",
+          "Bridge Street",
+          "Monroe Drive",
+          "Church Road",
+          "Main Street South",
+          "Adams Avenue",
+          "Delaware Avenue",
+          "Somerset Drive",
+          "9th Street",
+          "3rd Street East",
+          "Augusta Drive",
+          "Wall Street",
+          "Broad Street",
+          "Route 2",
+          "Fairview Avenue",
+          "5th Avenue",
+          "Spruce Avenue",
+          "Cemetery Road",
+          "River Street",
+          "Tanglewood Drive",
+          "Cedar Street",
+          "Canal Street",
+          "Market Street");
+
+  private static final List<String> NAMES = Arrays.asList(
+          "Daria Domino",
+          "Yukiko Yawn",
+          "Diane Dalessio",
+          "Elijah Elmore",
+          "Tyron Thaler",
+          "Stefani Stayton",
+          "Shara Stam",
+          "Earlean Eblin",
+          "Jonell Janecek",
+          "Thaddeus Tupper",
+          "Dorthy Delany",
+          "Shanel Saffell",
+          "Ricki Rost",
+          "Kandy Knecht",
+          "Mirella Ma",
+          "Rocky Ros",
+          "Theo Tosi",
+          "Marnie Manzer",
+          "Talisha Trottier",
+          "Thanh Tamez",
+          "Hyacinth Hotard",
+          "Dianne Dearman",
+          "Marc Medlin",
+          "Roxane Rossin",
+          "Mellie Marino",
+          "Eugene Eng",
+          "Charis Curnutt",
+          "Lillia Leming",
+          "Gretta Gately",
+          "Jessica Johnsen",
+          "Raven Riera",
+          "Roni Rost",
+          "Garth Gipson",
+          "Demetrice Dell",
+          "Eugenie Ead",
+          "Jared Julio",
+          "Alaina Aguinald ",
+          "Hortense Haun",
+          "Willia Woodland",
+          "Jessenia Jefferis",
+          "Jinny June",
+          "William Whang",
+          "Dessie Down",
+          "Katelyn Koren",
+          "Barbara Bazaldua",
+          "France Frese",
+          "Eufemia Evangelista",
+          "Neva Nock",
+          "Rickey Redd",
+          "Norma Nagler");
+
+
+}

sleuth-secondary-service/src/main/java/com/example/demo/Customer.java

@@ -0,0 +1,24 @@
+package com.example.demo;
+
+public class Customer {
+
+	private long id;
+
+	private String name;
+
+	public long getId() {
+		return id;
+	}
+
+	public void setId(long id) {
+		this.id = id;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+}

sleuth-secondary-service/src/main/java/com/example/demo/DemoApplication.java

@@ -0,0 +1,12 @@
+package com.example.demo;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class DemoApplication {
+
+  public static void main(String[] args) {
+    SpringApplication.run(DemoApplication.class, args);
+  }
+}

sleuth-secondary-service/src/main/resources/application.yml

@@ -0,0 +1,5 @@
+server.port: 8081
+spring:
+  output:
+    ansi:
+      enabled: always

sleuth-secondary-service/src/main/resources/bootstrap.properties

@@ -0,0 +1,2 @@
+# this file is loaded by Spring Cloud before application.properties
+spring.application.name=sleuth-secondary-service

sleuth-secondary-service/src/main/resources/logback-spring.xml

@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <include resource="org/springframework/boot/logging/logback/defaults.xml"/>
+    ​
+    <springProperty scope="context" name="springAppName" source="spring.application.name"/>
+    <!-- Example for logging into the build folder of your project -->
+    <property name="LOG_FILE" value="${BUILD_FOLDER:-build}/${springAppName}"/>​
+
+    <!-- You can override this to have a custom pattern -->
+    <property name="CONSOLE_LOG_PATTERN"
+              value="%d{yyyy-MM-dd HH:mm:ss.SSS} %5p [${springAppName},%X{X-B3-TraceId:-},%X{X-B3-SpanId:-},%X{X-Span-Export:-}] ${PID:- } --- [%15.15t] %-40.40logger{39} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}"/>
+
+    <!-- Appender to log to console -->
+    <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
+        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
+            <!-- Minimum logging level to be presented in the console logs-->
+            <level>DEBUG</level>
+        </filter>
+        <encoder>
+            <pattern>${CONSOLE_LOG_PATTERN}</pattern>
+            <charset>utf8</charset>
+        </encoder>
+    </appender>
+
+    <!-- Appender to log to file -->​
+    <appender name="flatfile" class="ch.qos.logback.core.rolling.RollingFileAppender">
+        <file>${LOG_FILE}</file>
+        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
+            <fileNamePattern>${LOG_FILE}.%d{yyyy-MM-dd}.gz</fileNamePattern>
+            <maxHistory>7</maxHistory>
+        </rollingPolicy>
+        <encoder>
+            <pattern>${CONSOLE_LOG_PATTERN}</pattern>
+            <charset>utf8</charset>
+        </encoder>
+    </appender>
+    ​
+    <!-- Appender to log to file in a JSON format -->
+    <!--<appender name="logstash" class="ch.qos.logback.core.rolling.RollingFileAppender">-->
+        <!--<file>${LOG_FILE}.json</file>-->
+        <!--<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">-->
+            <!--<fileNamePattern>${LOG_FILE}.json.%d{yyyy-MM-dd}.gz</fileNamePattern>-->
+            <!--<maxHistory>7</maxHistory>-->
+        <!--</rollingPolicy>-->
+        <!--<encoder class="net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder">-->
+            <!--<providers>-->
+                <!--<timestamp>-->
+                    <!--<timeZone>UTC</timeZone>-->
+                <!--</timestamp>-->
+                <!--<pattern>-->
+                    <!--<pattern>-->
+                        <!--{-->
+                        <!--"severity": "%level",-->
+                        <!--"service": "${springAppName:-}",-->
+                        <!--"trace": "%X{X-B3-TraceId:-}",-->
+                        <!--"span": "%X{X-B3-SpanId:-}",-->
+                        <!--"parent": "%X{X-B3-ParentSpanId:-}",-->
+                        <!--"exportable": "%X{X-Span-Export:-}",-->
+                        <!--"pid": "${PID:-}",-->
+                        <!--"thread": "%thread",-->
+                        <!--"class": "%logger{40}",-->
+                        <!--"rest": "%message"-->
+                        <!--}-->
+                    <!--</pattern>-->
+                <!--</pattern>-->
+            <!--</providers>-->
+        <!--</encoder>-->
+    <!--</appender>-->
+    ​
+    <root level="INFO">
+        <appender-ref ref="console"/>
+        <!-- uncomment this to have also JSON logs -->
+        <!--<appender-ref ref="logstash"/>-->
+        <appender-ref ref="flatfile"/>
+    </root>
+</configuration>