@echo off

rem
rem Licensed to the Apache Software Foundation (ASF) under one or more
rem contributor license agreements.  See the NOTICE file distributed with
rem this work for additional information regarding copyright ownership.
rem The ASF licenses this file to You under the Apache License, Version 2.0
rem (the "License"); you may not use this file except in compliance with
rem the License.  You may obtain a copy of the License at
rem
rem    http://www.apache.org/licenses/LICENSE-2.0
rem
rem Unless required by applicable law or agreed to in writing, software
rem distributed under the License is distributed on an "AS IS" BASIS,
rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rem See the License for the specific language governing permissions and
rem limitations under the License.
rem

rem Figure out where the Spark framework is installed
set SPARK_HOME=%~dp0..

call %SPARK_HOME%\bin\load-spark-env.cmd

rem Test that an argument was given
if "x%1"=="x" (
  echo Usage: spark-class ^<class^> [^<args^>]
  exit /b 1
)

rem Find assembly jar
set SPARK_ASSEMBLY_JAR=0

if exist "%SPARK_HOME%\RELEASE" (
  set ASSEMBLY_DIR=%SPARK_HOME%\lib
) else (
  set ASSEMBLY_DIR=%SPARK_HOME%\assembly\target\scala-%SPARK_SCALA_VERSION%
)

for %%d in (%ASSEMBLY_DIR%\spark-assembly*hadoop*.jar) do (
  set SPARK_ASSEMBLY_JAR=%%d
)
if "%SPARK_ASSEMBLY_JAR%"=="0" (
  echo Failed to find Spark assembly JAR.
  echo You need to build Spark before running this program.
  exit /b 1
)

set LAUNCH_CLASSPATH=%SPARK_ASSEMBLY_JAR%

rem Add the launcher build dir to the classpath if requested.
if not "x%SPARK_PREPEND_CLASSES%"=="x" (
  set LAUNCH_CLASSPATH=%SPARK_HOME%\launcher\target\scala-%SPARK_SCALA_VERSION%\classes;%LAUNCH_CLASSPATH%
)

set _SPARK_ASSEMBLY=%SPARK_ASSEMBLY_JAR%

rem Figure out where java is.
set RUNNER=java
if not "x%JAVA_HOME%"=="x" set RUNNER=%JAVA_HOME%\bin\java

rem The launcher library prints the command to be executed in a single line suitable for being
rem executed by the batch interpreter. So read all the output of the launcher into a variable.
set LAUNCHER_OUTPUT=%temp%\spark-class-launcher-output-%RANDOM%.txt
"%RUNNER%" -cp %LAUNCH_CLASSPATH% org.apache.spark.launcher.Main %* > %LAUNCHER_OUTPUT%
for /f "tokens=*" %%i in (%LAUNCHER_OUTPUT%) do (
  set SPARK_CMD=%%i
)
del %LAUNCHER_OUTPUT%
%SPARK_CMD%