org.eclipse.osgi.storage.bundlefile.FileBundleEntry 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;

/**
 * A BundleEntry represented by a File object.  The FileBundleEntry class is
 * used for bundles that are installed as extracted zips on a file system.
 */
public class FileBundleEntry extends BundleEntry {
	/**
	 * File for this entry.
	 */
	private final File file;
	/**
	 * The name for this entry
	 */
	private final String name;

	/**
	 * Constructs the BundleEntry using a File.
	 * @param file BundleFile object this entry is a member of
	 * @param name the name of this BundleEntry
	 */
	public FileBundleEntry(File file, String name) {
		this.file = file;
		boolean endsInSlash = name.length() > 0 && name.charAt(name.length() - 1) == '/';
		if (BundleFile.secureAction.isDirectory(file)) {
			if (!endsInSlash)
				name += '/';
		} else if (endsInSlash)
			name = name.substring(0, name.length() - 1);
		this.name = name;
	}

	/**
	 * Return an InputStream for the entry.
	 *
	 * @return InputStream for the entry
	 * @exception java.io.IOException
	 */
	@Override
	public InputStream getInputStream() throws IOException {
		return BundleFile.secureAction.getFileInputStream(file);
	}

	/**
	 * Return size of the uncompressed entry.
	 *
	 * @return size of entry
	 */
	@Override
	public long getSize() {
		return BundleFile.secureAction.length(file);
	}

	/**
	 * Return name of the entry.
	 *
	 * @return name of entry
	 */
	@Override
	public String getName() {
		return (name);
	}

	/**
	 * Get the modification time for this BundleEntry.
	 * If the modification time has not been set,
	 * this method will return -1.
	 *
	 * @return last modification time.
	 */
	@Override
	public long getTime() {
		return BundleFile.secureAction.lastModified(file);
	}

	@Override
	public URL getLocalURL() {
		return getFileURL();
	}

	@SuppressWarnings("deprecation")
	@Override
	public URL getFileURL() {
		try {
			return file.toURL();
		} catch (MalformedURLException e) {
			return null;
		}
	}
}