com.google.code.play2.plugin.AbstractPlay2StopServerMojo Maven / Gradle / Ivy
/*
* Copyright 2013-2017 Grzegorz Slowikowski (gslowikowski at gmail dot com)
*
* 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
*
* http://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.
*/
package com.google.code.play2.plugin;
import java.io.File;
import java.io.IOException;
import org.apache.maven.plugin.MojoExecutionException;
/**
* Base class for Play! server stopping ("stop" and "stop-server") mojos.
*
* @author Grzegorz Slowikowski
*/
public abstract class AbstractPlay2StopServerMojo
extends AbstractPlay2Mojo
{
protected void stopServer()
throws MojoExecutionException, IOException
{
File baseDir = project.getBasedir();
File pidFile = new File( baseDir, "RUNNING_PID" );
if ( !pidFile.exists() )
{
throw new MojoExecutionException( String.format( "Play! Server is not started (\"%s\" file not found)",
pidFile.getName() ) );
}
String pid = readFileFirstLine( pidFile, "ASCII" ).trim();
if ( "unknown".equals( pid ) )
{
throw new MojoExecutionException(
String.format( "Cannot stop Play! Server (unknown process id in \"%s\" file",
pidFile.getAbsolutePath() ) );
}
try
{
kill( pid );
if ( !pidFile.delete() )
{
throw new IOException( String.format( "Cannot delete %s file", pidFile.getAbsolutePath() ) );
}
}
catch ( InterruptedException e )
{
throw new MojoExecutionException( "?", e );
}
PidFileDeleter.getInstance().remove( pidFile );
}
// Copied from Play! Framework's "play.utils.Utils" Java class
protected void kill( String pid )
throws IOException, InterruptedException
{
String os = System.getProperty( "os.name" );
String command = os.startsWith( "Windows" ) ? "taskkill /F /PID " + pid : "kill " + pid;
Runtime.getRuntime().exec( command ).waitFor();
}
}