Home » openjdk-7 » java » util » jar » [javadoc | source]

    1   /*
    2    * Copyright (c) 1997, 2005, Oracle and/or its affiliates. All rights reserved.
    3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    4    *
    5    * This code is free software; you can redistribute it and/or modify it
    6    * under the terms of the GNU General Public License version 2 only, as
    7    * published by the Free Software Foundation.  Oracle designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Oracle in the LICENSE file that accompanied this code.
   10    *
   11    * This code is distributed in the hope that it will be useful, but WITHOUT
   12    * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   13    * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   14    * version 2 for more details (a copy is included in the LICENSE file that
   15    * accompanied this code).
   16    *
   17    * You should have received a copy of the GNU General Public License version
   18    * 2 along with this work; if not, write to the Free Software Foundation,
   19    * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   20    *
   21    * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   22    * or visit www.oracle.com if you need additional information or have any
   23    * questions.
   24    */
   25   
   26   package java.util.jar;
   27   
   28   import java.io.IOException;
   29   import java.util.zip.ZipEntry;
   30   import java.security.CodeSigner;
   31   import java.security.cert.Certificate;
   32   
   33   /**
   34    * This class is used to represent a JAR file entry.
   35    */
   36   public
   37   class JarEntry extends ZipEntry {
   38       Attributes attr;
   39       Certificate[] certs;
   40       CodeSigner[] signers;
   41   
   42       /**
   43        * Creates a new <code>JarEntry</code> for the specified JAR file
   44        * entry name.
   45        *
   46        * @param name the JAR file entry name
   47        * @exception NullPointerException if the entry name is <code>null</code>
   48        * @exception IllegalArgumentException if the entry name is longer than
   49        *            0xFFFF bytes.
   50        */
   51       public JarEntry(String name) {
   52           super(name);
   53       }
   54   
   55       /**
   56        * Creates a new <code>JarEntry</code> with fields taken from the
   57        * specified <code>ZipEntry</code> object.
   58        * @param ze the <code>ZipEntry</code> object to create the
   59        *           <code>JarEntry</code> from
   60        */
   61       public JarEntry(ZipEntry ze) {
   62           super(ze);
   63       }
   64   
   65       /**
   66        * Creates a new <code>JarEntry</code> with fields taken from the
   67        * specified <code>JarEntry</code> object.
   68        *
   69        * @param je the <code>JarEntry</code> to copy
   70        */
   71       public JarEntry(JarEntry je) {
   72           this((ZipEntry)je);
   73           this.attr = je.attr;
   74           this.certs = je.certs;
   75           this.signers = je.signers;
   76       }
   77   
   78       /**
   79        * Returns the <code>Manifest</code> <code>Attributes</code> for this
   80        * entry, or <code>null</code> if none.
   81        *
   82        * @return the <code>Manifest</code> <code>Attributes</code> for this
   83        * entry, or <code>null</code> if none
   84        */
   85       public Attributes getAttributes() throws IOException {
   86           return attr;
   87       }
   88   
   89       /**
   90        * Returns the <code>Certificate</code> objects for this entry, or
   91        * <code>null</code> if none. This method can only be called once
   92        * the <code>JarEntry</code> has been completely verified by reading
   93        * from the entry input stream until the end of the stream has been
   94        * reached. Otherwise, this method will return <code>null</code>.
   95        *
   96        * <p>The returned certificate array comprises all the signer certificates
   97        * that were used to verify this entry. Each signer certificate is
   98        * followed by its supporting certificate chain (which may be empty).
   99        * Each signer certificate and its supporting certificate chain are ordered
  100        * bottom-to-top (i.e., with the signer certificate first and the (root)
  101        * certificate authority last).
  102        *
  103        * @return the <code>Certificate</code> objects for this entry, or
  104        * <code>null</code> if none.
  105        */
  106       public Certificate[] getCertificates() {
  107           return certs == null ? null : certs.clone();
  108       }
  109   
  110       /**
  111        * Returns the <code>CodeSigner</code> objects for this entry, or
  112        * <code>null</code> if none. This method can only be called once
  113        * the <code>JarEntry</code> has been completely verified by reading
  114        * from the entry input stream until the end of the stream has been
  115        * reached. Otherwise, this method will return <code>null</code>.
  116        *
  117        * <p>The returned array comprises all the code signers that have signed
  118        * this entry.
  119        *
  120        * @return the <code>CodeSigner</code> objects for this entry, or
  121        * <code>null</code> if none.
  122        *
  123        * @since 1.5
  124        */
  125       public CodeSigner[] getCodeSigners() {
  126           return signers == null ? null : signers.clone();
  127       }
  128   }

Home » openjdk-7 » java » util » jar » [javadoc | source]