AntBuildFileClassLoaderHolder.java

/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * 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.napile.idea.thermit.config.impl;

import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;

import com.intellij.openapi.diagnostic.Logger;
import com.intellij.util.config.AbstractProperty;

public class AntBuildFileClassLoaderHolder extends ClassLoaderHolder
{
	private static final Logger LOG = Logger.getInstance("#org.napile.idea.thermit.config.impl.AntBuildFileClassLoaderHolder");

	public AntBuildFileClassLoaderHolder(AbstractProperty.AbstractPropertyContainer options)
	{
		super(options);
	}

	protected ClassLoader buildClasspath()
	{
		final ArrayList<File> files = new ArrayList<File>();
		for(final AntClasspathEntry entry : AntBuildFileImpl.ADDITIONAL_CLASSPATH.get(myOptions))
		{
			entry.addFilesTo(files);
		}

		final AntInstallation antInstallation = AntBuildFileImpl.RUN_WITH_ANT.get(myOptions);
		final ClassLoader parentLoader = (antInstallation != null) ? antInstallation.getClassLoader() : null;
		if(parentLoader != null && files.size() == 0)
		{
			// no additional classpath, so it's ok to use thermit installation's loader
			return parentLoader;
		}

		final List<URL> urls = new ArrayList<URL>(files.size());
		for(File file : files)
		{
			try
			{
				urls.add(file.toURI().toURL());
			}
			catch(MalformedURLException e)
			{
				LOG.debug(e);
			}
		}
		return new AntResourcesClassLoader(urls, parentLoader, false, false);
	}
}