/*

 * Copyright 1997-2005 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package java.util.jar;

import java.io.IOException;

import java.util.zip.ZipEntry;

import java.security.CodeSigner;

import java.security.cert.Certificate;

/**

 * This class is used to represent a JAR file entry.

 */

public

class JarEntry extends ZipEntry {

    Attributes attr;

    Certificate[] certs;

    CodeSigner[] signers;

    /**

     * Creates a new <code>JarEntry</code> for the specified JAR file

     * entry name.

     *

     * @param name the JAR file entry name

     * @exception NullPointerException if the entry name is <code>null</code>

     * @exception IllegalArgumentException if the entry name is longer than

     *            0xFFFF bytes.

     */

    public JarEntry(String name) {

        super(name);

    }

    /**

     * Creates a new <code>JarEntry</code> with fields taken from the

     * specified <code>ZipEntry</code> object.

     * @param ze the <code>ZipEntry</code> object to create the

     *           <code>JarEntry</code> from

     */

    public JarEntry(ZipEntry ze) {

        super(ze);

    }

    /**

     * Creates a new <code>JarEntry</code> with fields taken from the

     * specified <code>JarEntry</code> object.

     *

     * @param je the <code>JarEntry</code> to copy

     */

    public JarEntry(JarEntry je) {

        this((ZipEntry)je);

        this.attr = je.attr;

        this.certs = je.certs;

        this.signers = je.signers;

    }

    /**

     * Returns the <code>Manifest</code> <code>Attributes</code> for this

     * entry, or <code>null</code> if none.

     *

     * @return the <code>Manifest</code> <code>Attributes</code> for this

     * entry, or <code>null</code> if none

     */

    public Attributes getAttributes() throws IOException {

        return attr;

    }

    /**

     * Returns the <code>Certificate</code> objects for this entry, or

     * <code>null</code> if none. This method can only be called once

     * the <code>JarEntry</code> has been completely verified by reading

     * from the entry input stream until the end of the stream has been

     * reached. Otherwise, this method will return <code>null</code>.

     *

     * <p>The returned certificate array comprises all the signer certificates

     * that were used to verify this entry. Each signer certificate is

     * followed by its supporting certificate chain (which may be empty).

     * Each signer certificate and its supporting certificate chain are ordered

     * bottom-to-top (i.e., with the signer certificate first and the (root)

     * certificate authority last).

     *

     * @return the <code>Certificate</code> objects for this entry, or

     * <code>null</code> if none.

     */

    public Certificate[] getCertificates() {

        return certs == null ? null : certs.clone();

    }

    /**

     * Returns the <code>CodeSigner</code> objects for this entry, or

     * <code>null</code> if none. This method can only be called once

     * the <code>JarEntry</code> has been completely verified by reading

     * from the entry input stream until the end of the stream has been

     * reached. Otherwise, this method will return <code>null</code>.

     *

     * <p>The returned array comprises all the code signers that have signed

     * this entry.

     *

     * @return the <code>CodeSigner</code> objects for this entry, or

     * <code>null</code> if none.

     *

     * @since 1.5

     */

    public CodeSigner[] getCodeSigners() {

        return signers == null ? null : signers.clone();

    }

}