org.eclipse.osgi.storage.bundlefile.DirZipBundleEntry Maven / Gradle / Ivy

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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.

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/*******************************************************************************
 * Copyright (c) 2005, 2013 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.storage.bundlefile;

import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;

/**
 * Represents a directory entry in a ZipBundleFile.  This object is used to
 * reference a directory entry in a ZipBundleFile when the directory entries are
 * not included in the zip file.
 */
public class DirZipBundleEntry extends BundleEntry {

	/**
	 * ZipBundleFile for this entry.
	 */
	private ZipBundleFile bundleFile;
	/**
	 * The name for this entry
	 */
	String name;

	public DirZipBundleEntry(ZipBundleFile bundleFile, String name) {
		this.name = (name.length() > 0 && name.charAt(0) == '/') ? name.substring(1) : name;
		this.bundleFile = bundleFile;
	}

	/**
	 * @throws IOException
	 */
	@Override
	public InputStream getInputStream() throws IOException {
		return new ByteArrayInputStream(new byte[0]);
	}

	@Override
	public long getSize() {
		return 0;
	}

	@Override
	public String getName() {
		return name;
	}

	@Override
	public long getTime() {
		return 0;
	}

	@SuppressWarnings("deprecation")
	@Override
	public URL getLocalURL() {
		try {
			return new URL("jar:" + bundleFile.basefile.toURL() + "!/" + name); //$NON-NLS-1$ //$NON-NLS-2$
		} catch (MalformedURLException e) {
			//This can not happen, unless the jar protocol is not supported.
			return null;
		}
	}

	@SuppressWarnings("deprecation")
	@Override
	public URL getFileURL() {
		try {
			return bundleFile.extractDirectory(name).toURL();
		} catch (MalformedURLException e) {
			// this cannot happen.
			return null;
		}
	}
}