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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 org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.util.ClasspathUtils;
/**
* Creates the necessary rmic adapter, given basic criteria.
*
* @since 1.4
*/
public final class RmicAdapterFactory {
/** The error message to be used when the compiler cannot be found. */
public static final String ERROR_UNKNOWN_COMPILER = "Class not found: ";
/** The error message to be used when the class is not an rmic adapter. */
public static final String ERROR_NOT_RMIC_ADAPTER = "Class of unexpected Type: ";
/** If the compiler has this name use a default compiler. */
public static final String DEFAULT_COMPILER = "default";
/** This is a singleton -- can't create instances!! */
private RmicAdapterFactory() {
}
/**
* Based on the parameter passed in, this method creates the necessary
* factory desired.
*
* <p>The current mapping for rmic names are as follows:</p>
* <ul><li>sun = SUN's rmic
* <li>kaffe = Kaffe's rmic
* <li><i>a fully qualified classname</i> = the name of a rmic
* adapter
* <li>weblogic = weblogic compiler
* <li>forking = Sun's RMIC by forking a new JVM
* </ul>
*
* @param rmicType either the name of the desired rmic, or the
* full classname of the rmic's adapter.
* @param task a task to log through.
* @return the compiler adapter
* @throws BuildException if the rmic type could not be resolved into
* a rmic adapter.
*/
public static RmicAdapter getRmic(String rmicType, Task task)
throws BuildException {
return getRmic(rmicType, task, null);
}
/**
* Based on the parameter passed in, this method creates the necessary
* factory desired.
*
* <p>The current mapping for rmic names are as follows:</p>
* <ul><li>sun = SUN's rmic
* <li>kaffe = Kaffe's rmic
* <li><i>a fully qualified classname</i> = the name of a rmic
* adapter
* <li>weblogic = weblogic compiler
* <li>forking = Sun's RMIC by forking a new JVM
* </ul>
*
* @param rmicType either the name of the desired rmic, or the
* full classname of the rmic's adapter.
* @param task a task to log through.
* @param classpath the classpath to use when looking up an
* adapter class
* @return the compiler adapter
* @throws BuildException if the rmic type could not be resolved into
* a rmic adapter.
* @since Ant 1.8.0
*/
public static RmicAdapter getRmic(String rmicType, Task task,
Path classpath)
throws BuildException {
//handle default specially by choosing the sun or kaffe compiler
if (DEFAULT_COMPILER.equalsIgnoreCase(rmicType) || rmicType.length() == 0) {
rmicType = KaffeRmic.isAvailable()
? KaffeRmic.COMPILER_NAME
: SunRmic.COMPILER_NAME;
}
if (SunRmic.COMPILER_NAME.equalsIgnoreCase(rmicType)) {
return new SunRmic();
} else if (KaffeRmic.COMPILER_NAME.equalsIgnoreCase(rmicType)) {
return new KaffeRmic();
} else if (WLRmic.COMPILER_NAME.equalsIgnoreCase(rmicType)) {
return new WLRmic();
} else if (ForkingSunRmic.COMPILER_NAME.equalsIgnoreCase(rmicType)) {
return new ForkingSunRmic();
} else if (XNewRmic.COMPILER_NAME.equalsIgnoreCase(rmicType)) {
return new XNewRmic();
}
//no match?
return resolveClassName(rmicType,
// Memory leak in line below
task.getProject().createClassLoader(classpath));
}
/**
* Tries to resolve the given classname into a rmic adapter.
* Throws a fit if it can't.
*
* @param className The fully qualified classname to be created.
* @param loader the classloader to use
* @throws BuildException This is the fit that is thrown if className
* isn't an instance of RmicAdapter.
*/
private static RmicAdapter resolveClassName(String className,
ClassLoader loader)
throws BuildException {
return (RmicAdapter) ClasspathUtils.newInstance(className,
loader != null ? loader :
RmicAdapterFactory.class.getClassLoader(), RmicAdapter.class);
}
}
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