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update to use Gradle, misc demo improvements, add CI build
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version: 2.1 | ||
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orbs: | ||
win: circleci/windows@1.0.0 | ||
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workflows: | ||
test: | ||
jobs: | ||
- build-linux | ||
- build-windows | ||
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# This CI build just ensures that the demo compiles correctly. | ||
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jobs: | ||
build-linux: | ||
docker: | ||
- image: circleci/java | ||
steps: | ||
- checkout | ||
- run: ./gradlew dependencies | ||
- run: ./gradlew build | ||
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build-test-windows: | ||
executor: | ||
name: win/vs2019 | ||
shell: powershell.exe | ||
steps: | ||
- checkout | ||
- run: | ||
name: install OpenJDK | ||
command: | | ||
$ProgressPreference = "SilentlyContinue" # prevents console errors from CircleCI host | ||
iwr -outf openjdk.msi https://developers.redhat.com/download-manager/file/java-11-openjdk-11.0.5.10-2.windows.redhat.x86_64.msi | ||
Start-Process msiexec.exe -Wait -ArgumentList '/I openjdk.msi /quiet' | ||
- run: .\gradlew.bat --no-daemon dependencies # must use --no-daemon because CircleCI in Windows will hang if there's a daemon running | ||
- run: .\gradlew.bat --no-daemon build # must use --no-daemon because CircleCI in Windows will hang if there's a daemon running |
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*.iws | ||
.idea/ | ||
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# Maven | ||
target | ||
# Gradle | ||
.gradle | ||
build |
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### LaunchDarkly Sample Java Application ### | ||
We've built a simple console application that demonstrates how LaunchDarkly's SDK works. Below, you'll find the basic build procedure, but for more comprehensive instructions, you can visit your [Quickstart page](https://app.launchdarkly.com/quickstart#/). | ||
##### Build instructions ##### | ||
1. Make sure you have [Maven](https://maven.apache.org/download.cgi) installed. We've tested against Maven 3 | ||
2. Create a new project | ||
3. Copy your SDK key and feature flag key from your LaunchDarkly dashboard into `main` | ||
4. Make sure `pom.xml` is referencing the latest version of `launchdarkly-java-server-sdk`; you can see the latest release [here](https://github.com/launchdarkly/java-server-sdk/releases) | ||
5. Run `mvn clean compile assembly:single` | ||
6. Then run `java -jar target/hello-java-1.0-SNAPSHOT-jar-with-dependencies.jar` | ||
# LaunchDarkly Sample Java Application | ||
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We've built a simple console application that demonstrates how LaunchDarkly's SDK works. | ||
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Below, you'll find the basic build procedure, but for more comprehensive instructions, you can visit your [Quickstart page](https://app.launchdarkly.com/quickstart#/) or the [Java SDK reference guide](https://docs.launchdarkly.com/sdk/server-side/java). | ||
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## Build instructions | ||
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This project uses [Gradle](https://gradle.org/). It requires that Java is already installed on your system (version 7 or higher). It will automatically use the latest release of the LaunchDarkly SDK with major version 4. | ||
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1. Edit `src/main/java/Hello.java` and set the value of `SDK_KEY` to your LaunchDarkly SDK key. If there is an existing boolean feature flag in your LaunchDarkly project that you want to evaluate, set `FEATURE_FLAG_KEY` to the flag key. | ||
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```java | ||
static final String SDK_KEY = "1234567890abcdef"; | ||
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static final String FEATURE_FLAG_KEY = "my-flag"; | ||
``` | ||
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2. On the command line, run `./gradlew run` (or, on Windows, `gradlew run`). | ||
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The demo should print `"Feature flag '<flag key>' is <true/false> for this user"`. |
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plugins { | ||
id "java" | ||
id "application" | ||
} | ||
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repositories { | ||
mavenCentral() | ||
} | ||
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allprojects { | ||
sourceCompatibility = 1.7 | ||
targetCompatibility = 1.7 | ||
} | ||
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application { | ||
mainClassName = "Hello" | ||
} | ||
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ext.versions = [ | ||
"sdk": "4.+", // will use the latest 4.x version | ||
"slf4j": "1.7.22" | ||
] | ||
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dependencies { | ||
implementation "com.launchdarkly:launchdarkly-java-server-sdk:4.+" | ||
implementation "org.slf4j:slf4j-api:${versions.slf4j}" | ||
implementation "org.slf4j:slf4j-simple:${versions.slf4j}" | ||
} |
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distributionBase=GRADLE_USER_HOME | ||
distributionPath=wrapper/dists | ||
distributionUrl=https\://services.gradle.org/distributions/gradle-6.2.2-bin.zip | ||
zipStoreBase=GRADLE_USER_HOME | ||
zipStorePath=wrapper/dists |
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#!/usr/bin/env sh | ||
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############################################################################## | ||
## | ||
## Gradle start up script for UN*X | ||
## | ||
############################################################################## | ||
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# 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 | ||
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APP_NAME="Gradle" | ||
APP_BASE_NAME=`basename "$0"` | ||
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# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. | ||
DEFAULT_JVM_OPTS="" | ||
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# Use the maximum available, or set MAX_FD != -1 to use that value. | ||
MAX_FD="maximum" | ||
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warn () { | ||
echo "$*" | ||
} | ||
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die () { | ||
echo | ||
echo "$*" | ||
echo | ||
exit 1 | ||
} | ||
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# OS specific support (must be 'true' or 'false'). | ||
cygwin=false | ||
msys=false | ||
darwin=false | ||
nonstop=false | ||
case "`uname`" in | ||
CYGWIN* ) | ||
cygwin=true | ||
;; | ||
Darwin* ) | ||
darwin=true | ||
;; | ||
MINGW* ) | ||
msys=true | ||
;; | ||
NONSTOP* ) | ||
nonstop=true | ||
;; | ||
esac | ||
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CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar | ||
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# 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: $JAVA_HOME | ||
Please set the JAVA_HOME variable in your environment to match the | ||
location of your Java installation." | ||
fi | ||
else | ||
JAVACMD="java" | ||
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. | ||
Please set the JAVA_HOME variable in your environment to match the | ||
location of your Java installation." | ||
fi | ||
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# Increase the maximum file descriptors if we can. | ||
if [ "$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 | ||
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# 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 | ||
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# 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"` | ||
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# 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 | ||
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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 | ||
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# Escape application args | ||
save () { | ||
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done | ||
echo " " | ||
} | ||
APP_ARGS=$(save "$@") | ||
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# 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" | ||
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# 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 "$0")" | ||
fi | ||
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exec "$JAVACMD" "$@" |
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@if "%DEBUG%" == "" @echo off | ||
@rem ########################################################################## | ||
@rem | ||
@rem Gradle startup script for Windows | ||
@rem | ||
@rem ########################################################################## | ||
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@rem Set local scope for the variables with windows NT shell | ||
if "%OS%"=="Windows_NT" setlocal | ||
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set DIRNAME=%~dp0 | ||
if "%DIRNAME%" == "" set DIRNAME=. | ||
set APP_BASE_NAME=%~n0 | ||
set APP_HOME=%DIRNAME% | ||
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@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= | ||
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@rem Find java.exe | ||
if defined JAVA_HOME goto findJavaFromJavaHome | ||
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set JAVA_EXE=java.exe | ||
%JAVA_EXE% -version >NUL 2>&1 | ||
if "%ERRORLEVEL%" == "0" goto init | ||
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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. | ||
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goto fail | ||
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:findJavaFromJavaHome | ||
set JAVA_HOME=%JAVA_HOME:"=% | ||
set JAVA_EXE=%JAVA_HOME%/bin/java.exe | ||
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if exist "%JAVA_EXE%" goto init | ||
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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. | ||
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goto fail | ||
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:init | ||
@rem Get command-line arguments, handling Windows variants | ||
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if not "%OS%" == "Windows_NT" goto win9xME_args | ||
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:win9xME_args | ||
@rem Slurp the command line arguments. | ||
set CMD_LINE_ARGS= | ||
set _SKIP=2 | ||
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:win9xME_args_slurp | ||
if "x%~1" == "x" goto execute | ||
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set CMD_LINE_ARGS=%* | ||
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:execute | ||
@rem Setup the command line | ||
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set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar | ||
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@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% | ||
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:end | ||
@rem End local scope for the variables with windows NT shell | ||
if "%ERRORLEVEL%"=="0" goto mainEnd | ||
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: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 | ||
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:mainEnd | ||
if "%OS%"=="Windows_NT" endlocal | ||
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:omega |
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