/*
* 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 org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.taskdefs.ExecuteJava;
import org.apache.tools.ant.types.Commandline;
/**
* The implementation of the rmic for Kaffe
*
* @since Ant 1.4
*/
public class KaffeRmic extends DefaultRmicAdapter {
// sorted by newest Kaffe version first
private static final String[] RMIC_CLASSNAMES = new String[] {
"gnu.classpath.tools.rmi.rmic.RMIC",
// pre Kaffe 1.1.5
"gnu.java.rmi.rmic.RMIC",
// pre Kaffe 1.1.2
"kaffe.rmi.rmic.RMIC",
};
/**
* the name of this adapter for users to select
*/
public static final String COMPILER_NAME = "kaffe";
/** {@inheritDoc} */
public boolean execute() throws BuildException {
getRmic().log("Using Kaffe rmic", Project.MSG_VERBOSE);
Commandline cmd = setupRmicCommand();
Class c = getRmicClass();
if (c == null) {
StringBuffer buf = new StringBuffer("Cannot use Kaffe rmic, as it"
+ " is not available. None"
+ " of ");
for (int i = 0; i < RMIC_CLASSNAMES.length; i++) {
if (i != 0) {
buf.append(", ");
}
buf.append(RMIC_CLASSNAMES[i]);
}
buf.append(" have been found. A common solution is to set the"
+ " environment variable JAVA_HOME or CLASSPATH.");
throw new BuildException(buf.toString(),
getRmic().getLocation());
}
cmd.setExecutable(c.getName());
if (!c.getName().equals(RMIC_CLASSNAMES[RMIC_CLASSNAMES.length - 1])) {
// only supported since Kaffe 1.1.2
cmd.createArgument().setValue("-verbose");
getRmic().log(Commandline.describeCommand(cmd));
}
ExecuteJava ej = new ExecuteJava();
ej.setJavaCommand(cmd);
return ej.fork(getRmic()) == 0;
}
/**
* test for kaffe being on the system
* @return true if kaffe is on the current classpath
*/
public static boolean isAvailable() {
return getRmicClass() != null;
}
/**
* tries to load Kaffe RMIC and falls back to the older class name
* if necessary.
*
* @return null if neither class can get loaded.
*/
private static Class getRmicClass() {
for (int i = 0; i < RMIC_CLASSNAMES.length; i++) {
try {
return Class.forName(RMIC_CLASSNAMES[i]);
} catch (ClassNotFoundException cnfe) {
// Ignore
}
}
return null;
}
}