org.eclipse.osgi.internal.loader.sources.MultiSourcePackage Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of aspectjtools Show documentation

AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

There is a newer version: 1.9.22.1

Show newest version

/*******************************************************************************
 * Copyright (c) 2003, 2016 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.osgi.internal.loader.sources;

import java.net.URL;
import java.util.*;
import org.eclipse.osgi.internal.loader.BundleLoader;

public class MultiSourcePackage extends PackageSource {
	private final SingleSourcePackage[] suppliers;

	public MultiSourcePackage(String id, SingleSourcePackage[] suppliers) {
		super(id);
		this.suppliers = suppliers;
	}

	@Override
	public SingleSourcePackage[] getSuppliers() {
		return suppliers;
	}

	@Override
	public Class loadClass(String name) throws ClassNotFoundException {
		Class result = null;
		for (SingleSourcePackage supplier : suppliers) {
			result = supplier.loadClass(name);
			if (result != null)
				return result;
		}
		return result;
	}

	@Override
	public URL getResource(String name) {
		URL result = null;
		for (SingleSourcePackage supplier : suppliers) {
			result = supplier.getResource(name);
			if (result != null)
				return result;
		}
		return result;
	}

	@Override
	public Enumeration getResources(String name) {
		Enumeration results = null;
		for (SingleSourcePackage supplier : suppliers) {
			results = BundleLoader.compoundEnumerations(results, supplier.getResources(name));
		}
		return results;
	}

	@Override
	public Collection listResources(String path, String filePattern) {
		List result = new ArrayList<>();
		for (SingleSourcePackage source : suppliers) {
			Collection sourceResources = source.listResources(path, filePattern);
			for (String resource : sourceResources) {
				if (!result.contains(resource))
					result.add(resource);
			}
		}
		return result;
	}
}