/*
* Copyright 2001-2002,2004 The Apache Software Foundation
*
* 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.tools.ant.taskdefs.compilers;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.taskdefs.LogOutputStream;
import org.apache.tools.ant.types.Commandline;
/**
* The implementation of the javac compiler for JDK 1.2
* This is primarily a cut-and-paste from the original javac task before it
* was refactored.
*
* @author James Davidson <a href="mailto:duncan@x180.com">duncan@x180.com</a>
* @author Robin Green
* <a href="mailto:greenrd@hotmail.com">greenrd@hotmail.com</a>
* @author Stefan Bodewig
* @author <a href="mailto:jayglanville@home.com">J D Glanville</a>
*
* @since Ant 1.3
*/
public class Javac12 extends DefaultCompilerAdapter {
/**
* Run the compilation.
*
* @exception BuildException if the compilation has problems.
*/
public boolean execute() throws BuildException {
attributes.log("Using classic compiler", Project.MSG_VERBOSE);
Commandline cmd = setupJavacCommand(true);
OutputStream logstr = new LogOutputStream(attributes, Project.MSG_WARN);
try {
// Create an instance of the compiler, redirecting output to
// the project log
Class c = Class.forName("sun.tools.javac.Main");
Constructor cons =
c.getConstructor(new Class[] {OutputStream.class,
String.class});
Object compiler
= cons.newInstance(new Object[] {logstr, "javac"});
// Call the compile() method
Method compile = c.getMethod("compile",
new Class [] {String[].class});
Boolean ok =
(Boolean) compile.invoke(compiler,
new Object[] {cmd.getArguments()});
return ok.booleanValue();
} catch (ClassNotFoundException ex) {
throw new BuildException("Cannot use classic compiler, as it is "
+ "not available. A common solution is "
+ "to set the environment variable"
+ " JAVA_HOME to your jdk directory.",
location);
} catch (Exception ex) {
if (ex instanceof BuildException) {
throw (BuildException) ex;
} else {
throw new BuildException("Error starting classic compiler: ",
ex, location);
}
} finally {
try {
logstr.close();
} catch (IOException e) {
// plain impossible
throw new BuildException(e);
}
}
}
}