--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/security/x509/CertificateSerialNumber.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,182 @@
+/*
+ * Copyright 1997-2006 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 sun.security.x509;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.math.BigInteger;
+import java.util.Enumeration;
+
+import sun.security.util.*;
+
+/**
+ * This class defines the SerialNumber attribute for the Certificate.
+ *
+ * @author Amit Kapoor
+ * @author Hemma Prafullchandra
+ * @see CertAttrSet
+ */
+public class CertificateSerialNumber implements CertAttrSet<String> {
+    /**
+     * Identifier for this attribute, to be used with the
+     * get, set, delete methods of Certificate, x509 type.
+     */
+    public static final String IDENT = "x509.info.serialNumber";
+
+    /**
+     * Sub attributes name for this CertAttrSet.
+     */
+    public static final String NAME = "serialNumber";
+    public static final String NUMBER = "number";
+
+    private SerialNumber        serial;
+
+    /**
+     * Default constructor for the certificate attribute.
+     *
+     * @param serial the serial number for the certificate.
+     */
+    public CertificateSerialNumber(BigInteger num) {
+      this.serial = new SerialNumber(num);
+    }
+
+    /**
+     * Default constructor for the certificate attribute.
+     *
+     * @param serial the serial number for the certificate.
+     */
+    public CertificateSerialNumber(int num) {
+      this.serial = new SerialNumber(num);
+    }
+
+    /**
+     * Create the object, decoding the values from the passed DER stream.
+     *
+     * @param in the DerInputStream to read the serial number from.
+     * @exception IOException on decoding errors.
+     */
+    public CertificateSerialNumber(DerInputStream in) throws IOException {
+        serial = new SerialNumber(in);
+    }
+
+    /**
+     * Create the object, decoding the values from the passed stream.
+     *
+     * @param in the InputStream to read the serial number from.
+     * @exception IOException on decoding errors.
+     */
+    public CertificateSerialNumber(InputStream in) throws IOException {
+        serial = new SerialNumber(in);
+    }
+
+    /**
+     * Create the object, decoding the values from the passed DerValue.
+     *
+     * @param val the DER encoded value.
+     * @exception IOException on decoding errors.
+     */
+    public CertificateSerialNumber(DerValue val) throws IOException {
+        serial = new SerialNumber(val);
+    }
+
+    /**
+     * Return the serial number as user readable string.
+     */
+    public String toString() {
+        if (serial == null) return "";
+        return (serial.toString());
+    }
+
+    /**
+     * Encode the serial number in DER form to the stream.
+     *
+     * @param out the DerOutputStream to marshal the contents to.
+     * @exception IOException on errors.
+     */
+    public void encode(OutputStream out) throws IOException {
+        DerOutputStream tmp = new DerOutputStream();
+        serial.encode(tmp);
+
+        out.write(tmp.toByteArray());
+    }
+
+    /**
+     * Set the attribute value.
+     */
+    public void set(String name, Object obj) throws IOException {
+        if (!(obj instanceof SerialNumber)) {
+            throw new IOException("Attribute must be of type SerialNumber.");
+        }
+        if (name.equalsIgnoreCase(NUMBER)) {
+            serial = (SerialNumber)obj;
+        } else {
+            throw new IOException("Attribute name not recognized by " +
+                                "CertAttrSet:CertificateSerialNumber.");
+        }
+    }
+
+    /**
+     * Get the attribute value.
+     */
+    public Object get(String name) throws IOException {
+        if (name.equalsIgnoreCase(NUMBER)) {
+            return (serial);
+        } else {
+            throw new IOException("Attribute name not recognized by " +
+                                "CertAttrSet:CertificateSerialNumber.");
+        }
+    }
+
+    /**
+     * Delete the attribute value.
+     */
+    public void delete(String name) throws IOException {
+        if (name.equalsIgnoreCase(NUMBER)) {
+            serial = null;
+        } else {
+            throw new IOException("Attribute name not recognized by " +
+                                "CertAttrSet:CertificateSerialNumber.");
+        }
+    }
+
+    /**
+     * Return an enumeration of names of attributes existing within this
+     * attribute.
+     */
+    public Enumeration<String> getElements() {
+        AttributeNameEnumeration elements = new AttributeNameEnumeration();
+        elements.addElement(NUMBER);
+
+        return (elements.elements());
+    }
+
+    /**
+     * Return the name of this attribute.
+     */
+    public String getName() {
+        return (NAME);
+    }
+}