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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.optional.native2ascii;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.ProjectComponent;
import org.apache.tools.ant.taskdefs.ExecuteJava;
import org.apache.tools.ant.taskdefs.optional.Native2Ascii;
import org.apache.tools.ant.types.Commandline;
/**
* Adapter to kaffe.tools.native2ascii.Native2Ascii.
*
* @since Ant 1.6.3
*/
public final class KaffeNative2Ascii extends DefaultNative2Ascii {
// sorted by newest Kaffe version first
private static final String[] N2A_CLASSNAMES = new String[] {
"gnu.classpath.tools.native2ascii.Native2ASCII",
// pre Kaffe 1.1.5
"kaffe.tools.native2ascii.Native2Ascii",
};
/**
* Identifies this adapter.
*/
public static final String IMPLEMENTATION_NAME = "kaffe";
/** {@inheritDoc} */
protected void setup(Commandline cmd, Native2Ascii args)
throws BuildException {
if (args.getReverse()) {
throw new BuildException("-reverse is not supported by Kaffe");
}
super.setup(cmd, args);
}
/** {@inheritDoc} */
protected boolean run(Commandline cmd, ProjectComponent log)
throws BuildException {
ExecuteJava ej = new ExecuteJava();
Class c = getN2aClass();
if (c == null) {
throw new BuildException("Couldn't load Kaffe's Native2Ascii"
+ " class");
}
cmd.setExecutable(c.getName());
ej.setJavaCommand(cmd);
ej.execute(log.getProject());
// otherwise ExecuteJava has thrown an exception
return true;
}
/**
* tries to load Kaffe Native2Ascii and falls back to the older
* class name if necessary.
*
* @return null if neither class can get loaded.
*/
private static Class getN2aClass() {
for (int i = 0; i < N2A_CLASSNAMES.length; i++) {
try {
return Class.forName(N2A_CLASSNAMES[i]);
} catch (ClassNotFoundException cnfe) {
// Ignore
}
}
return null;
}
}
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