java.util.JarEntryクラスはjarファイルの中のエントリー(主にclassファイル)の情報を保持するクラスである。java.util.zip.ZipEntryクラスを継承している。
インスタンス変数は,属性を持つためのAttributes型のattr,電子証明書情報を持つためのCertificate型の配列であるcerts,そしてコード署名を持つCodeSigner型の配列signersが定義されている。
コンストラクタは次の3つが定義されており,引数をとらないディフォルトコンストラクタはない。
- JarEntry(String name)
- JarEntry(ZipEntry ze)
- JarEntry(JarEntry je)
メソッドは,それぞれのインスタンス変数に対するgetterメソッドと,getRealName()というバージョン管理されている場合に実際の名前を返すためのメソッドがある。 getRealName() メソッドにはJava 10から導入されたというコメントが書かれている。
/*
* 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.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;
public
class JarEntry extends ZipEntry {
Attributes attr;
Certificate[] certs;
CodeSigner[] signers;
public JarEntry(String name) {
super(name);
}
public JarEntry(ZipEntry ze) {
super(ze);
}
public JarEntry(JarEntry je) {
this((ZipEntry)je);
this.attr = je.attr;
this.certs = je.certs;
this.signers = je.signers;
}
public Attributes getAttributes() throws IOException {
return attr;
}
public Certificate[] getCertificates() {
return certs == null ? null : certs.clone();
}
public CodeSigner[] getCodeSigners() {
return signers == null ? null : signers.clone();
}
public String getRealName() {
return super.getName();
}
}
* 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.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.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;
public
class JarEntry extends ZipEntry {
Attributes attr;
Certificate[] certs;
CodeSigner[] signers;
public JarEntry(String name) {
super(name);
}
public JarEntry(ZipEntry ze) {
super(ze);
}
public JarEntry(JarEntry je) {
this((ZipEntry)je);
this.attr = je.attr;
this.certs = je.certs;
this.signers = je.signers;
}
public Attributes getAttributes() throws IOException {
return attr;
}
public Certificate[] getCertificates() {
return certs == null ? null : certs.clone();
}
public CodeSigner[] getCodeSigners() {
return signers == null ? null : signers.clone();
}
public String getRealName() {
return super.getName();
}
}