/*
* Copyright 2005-2006 The Apache Software Foundation or its licensors, as applicable.
*
* 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 org.apache.harmony.tools.ijh.anttask;
import java.io.File;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.launch.Locator;
import org.apache.tools.ant.taskdefs.ExecuteJava;
import org.apache.tools.ant.taskdefs.optional.Javah;
import org.apache.tools.ant.taskdefs.optional.javah.JavahAdapter;
import org.apache.tools.ant.types.Commandline;
import org.apache.tools.ant.types.Path;
/**
* Adapter to org.apache.harmony.tools.ijh.Main.
*
* This class depends on Apache Ant tool 1.6.5 or later.
* Please see http://ant.apache.org for more information about this tool.
*/
public class Adapter implements JavahAdapter {
/**
* Runs our implementation of the <code>javah</code>.
*
* @param javah is the Javah task.
* @return <code>true</code> if there is no error; Otherwise
* <code>false</code>.
*/
public boolean compile(Javah javah) throws BuildException {
Class clss = null;
// Try to load the main class of the tool.
try {
clss = Class.forName("org.apache.harmony.tools.ijh.Main");
} catch (ClassNotFoundException e) {
throw new BuildException("Can't load a class", e,
javah.getLocation());
}
// Prepare a command to launch the tool.
Commandline cmd = setupCommand(javah);
cmd.setExecutable(clss.getName());
// Prepare a java command.
ExecuteJava java = new ExecuteJava();
java.setJavaCommand(cmd);
// Find a file or a jar which represents the required class.
File file = Locator.getClassSource(clss);
if (file != null) {
// The found file should be included into the class path.
Path classpath = new Path(javah.getProject(), file.getPath());
// Try to load BCEL's ClassPath utility class.
try {
clss = Class.forName("org.apache.bcel.util.ClassPath");
} catch (ClassNotFoundException e) {
throw new BuildException("Can't load BCEL", e,
javah.getLocation());
}
// Find a file or a jar which represents the required class.
file = Locator.getClassSource(clss);
if (file != null) {
// Add the found file to the class path.
classpath.append(new Path(javah.getProject(), file.getPath()));
}
// Set the class path.
java.setClasspath(classpath);
}
// Run the java command.
return java.fork(javah) == 0;
}
/**
* Prepare a command line that includes all parameters.
*
* @param javah is the Javah task.
* @return The prepared command line.
*/
private Commandline setupCommand(Javah javah) {
Commandline cmd = new Commandline();
// Add a destination directory if any.
if (javah.getDestdir() != null) {
cmd.createArgument().setValue("-d");
cmd.createArgument().setFile(javah.getDestdir());
}
// Add an output file if any.
if (javah.getOutputfile() != null) {
cmd.createArgument().setValue("-o");
cmd.createArgument().setFile(javah.getOutputfile());
}
// Add a class path if any.
if (javah.getClasspath() != null) {
cmd.createArgument().setValue("-classpath");
cmd.createArgument().setPath(javah.getClasspath());
}
// Add a verbose flag if any.
if (javah.getVerbose()) {
cmd.createArgument().setValue("-verbose");
}
// Add a boot class path if any.
Path bootClasspath = new Path(javah.getProject());
if (javah.getBootclasspath() != null) {
bootClasspath.append(javah.getBootclasspath());
}
if (bootClasspath.size() > 0) {
cmd.createArgument().setValue("-bootclasspath");
cmd.createArgument().setPath(bootClasspath);
}
// Add settings given as nested arg elements.
cmd.addArguments(javah.getCurrentArgs());
// Add and log the parameters and source files.
javah.logAndAddFiles(cmd);
return cmd;
}
}