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JarEntry.java
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129 lines (120 loc) · 3.66 KB
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/*
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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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 <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
* @throws IOException if an I/O error has occurred
*/
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();
}
}