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/*
* 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
*
* 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 org.apache.tools.ant.taskdefs.rmic;
import java.io.IOException;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.taskdefs.Execute;
import org.apache.tools.ant.taskdefs.LogStreamHandler;
import org.apache.tools.ant.taskdefs.Rmic;
import org.apache.tools.ant.types.Commandline;
import org.apache.tools.ant.util.JavaEnvUtils;
/**
* This is an extension of the sun rmic compiler, which forks rather than
* executes it inline. Why so? Because rmic is dog slow, but if you fork the
* compiler you can have multiple copies compiling different bits of your project
* at the same time. Which, on a multi-cpu system results in significant speedups.
*
* Also, Java1.6 behaves oddly with -XNew, so we switch it on here if needed.
* @since ant1.7
*/
public class ForkingSunRmic extends DefaultRmicAdapter {
/**
* the name of this adapter for users to select
*/
public static final String COMPILER_NAME = "forking";
/**
* exec by creating a new command
* @return true if the command ran successfully
* @throws BuildException on error
*/
public boolean execute() throws BuildException {
Rmic owner = getRmic();
Commandline cmd = setupRmicCommand();
Project project = owner.getProject();
String executable = owner.getExecutable();
if (executable == null) {
// no explicitly specified executable
// rely on RMIC being on the path
executable = JavaEnvUtils.getJdkExecutable(getExecutableName());
}
cmd.setExecutable(executable);
//set up the args
String[] args = cmd.getCommandline();
try {
Execute exe = new Execute(new LogStreamHandler(owner,
Project.MSG_INFO,
Project.MSG_WARN));
exe.setAntRun(project);
exe.setWorkingDirectory(project.getBaseDir());
exe.setCommandline(args);
exe.execute();
return !exe.isFailure();
} catch (IOException exception) {
throw new BuildException("Error running " + getExecutableName()
+ " -maybe it is not on the path", exception);
}
}
/**
* Override point.
* @return the executable name.
*/
protected String getExecutableName() {
return SunRmic.RMIC_EXECUTABLE;
}
}
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