java.util.jar.JarEntry Maven / Gradle / Ivy
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/*
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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.
*
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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 JarEntry for the specified JAR file
* entry name.
*
* @param name the JAR file entry name
* @exception NullPointerException if the entry name is null
* @exception IllegalArgumentException if the entry name is longer than
* 0xFFFF bytes.
*/
public JarEntry(String name) {
super(name);
}
/**
* Creates a new JarEntry with fields taken from the
* specified ZipEntry object.
* @param ze the ZipEntry object to create the
* JarEntry from
*/
public JarEntry(ZipEntry ze) {
super(ze);
}
/**
* Creates a new JarEntry with fields taken from the
* specified JarEntry object.
*
* @param je the JarEntry to copy
*/
public JarEntry(JarEntry je) {
this((ZipEntry)je);
this.attr = je.attr;
this.certs = je.certs;
this.signers = je.signers;
}
/**
* Returns the Manifest Attributes for this
* entry, or null if none.
*
* @return the Manifest Attributes for this
* entry, or null if none
* @throws IOException if an I/O error has occurred
*/
public Attributes getAttributes() throws IOException {
return attr;
}
/**
* Returns the Certificate objects for this entry, or
* null if none. This method can only be called once
* the JarEntry 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 null.
*
* 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 Certificate objects for this entry, or
* null if none.
*/
public Certificate[] getCertificates() {
return certs == null ? null : certs.clone();
}
/**
* Returns the CodeSigner objects for this entry, or
* null if none. This method can only be called once
* the JarEntry 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 null.
*
*
The returned array comprises all the code signers that have signed
* this entry.
*
* @return the CodeSigner objects for this entry, or
* null if none.
*
* @since 1.5
*/
public CodeSigner[] getCodeSigners() {
return signers == null ? null : signers.clone();
}
}