/*
 * reserved comment block
 * DO NOT REMOVE OR ALTER!
 */
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
/*
 * Copyright (c) 2005, 2008, Oracle and/or its affiliates. All rights reserved.
 */
/*
 * $Id: DOMX509IssuerSerial.java 1333415 2012-05-03 12:03:51Z coheigea $
 */
package org.jcp.xml.dsig.internal.dom;

import javax.xml.crypto.*;
import javax.xml.crypto.dom.DOMCryptoContext;
import javax.xml.crypto.dsig.*;
import javax.xml.crypto.dsig.keyinfo.X509IssuerSerial;

import java.math.BigInteger;
import javax.security.auth.x500.X500Principal;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

DOM-based implementation of X509IssuerSerial.
Author:
Sean Mullan/**
 * DOM-based implementation of X509IssuerSerial.
 *
 * @author Sean Mullan
 */
public final class DOMX509IssuerSerial extends DOMStructure
    implements X509IssuerSerial {

    private final String issuerName;
    private final BigInteger serialNumber;

    
Creates a DOMX509IssuerSerial containing the specified
issuer distinguished name/serial number pair.
Params:
issuerName – the X.509 issuer distinguished name in RFC 2253
   String format
serialNumber – the serial number
Throws:
IllegalArgumentException – if the format of issuerName
   is not RFC 2253 compliant
NullPointerException – if issuerName or
   serialNumber is null/**
     * Creates a <code>DOMX509IssuerSerial</code> containing the specified
     * issuer distinguished name/serial number pair.
     *
     * @param issuerName the X.509 issuer distinguished name in RFC 2253
     *    String format
     * @param serialNumber the serial number
     * @throws IllegalArgumentException if the format of <code>issuerName</code>
     *    is not RFC 2253 compliant
     * @throws NullPointerException if <code>issuerName</code> or
     *    <code>serialNumber</code> is <code>null</code>
     */
    public DOMX509IssuerSerial(String issuerName, BigInteger serialNumber) {
        if (issuerName == null) {
            throw new NullPointerException("issuerName cannot be null");
        }
        if (serialNumber == null) {
            throw new NullPointerException("serialNumber cannot be null");
        }
        // check that issuer distinguished name conforms to RFC 2253
        new X500Principal(issuerName);
        this.issuerName = issuerName;
        this.serialNumber = serialNumber;
    }

    
Creates a DOMX509IssuerSerial from an element.
Params:
isElem – an X509IssuerSerial element/**
     * Creates a <code>DOMX509IssuerSerial</code> from an element.
     *
     * @param isElem an X509IssuerSerial element
     */
    public DOMX509IssuerSerial(Element isElem) throws MarshalException {
        Element iNElem = DOMUtils.getFirstChildElement(isElem,
                                                       "X509IssuerName");
        Element sNElem = DOMUtils.getNextSiblingElement(iNElem,
                                                        "X509SerialNumber");
        issuerName = iNElem.getFirstChild().getNodeValue();
        serialNumber = new BigInteger(sNElem.getFirstChild().getNodeValue());
    }

    public String getIssuerName() {
        return issuerName;
    }

    public BigInteger getSerialNumber() {
        return serialNumber;
    }

    public void marshal(Node parent, String dsPrefix, DOMCryptoContext context)
        throws MarshalException
    {
        Document ownerDoc = DOMUtils.getOwnerDocument(parent);

        Element isElem = DOMUtils.createElement(ownerDoc, "X509IssuerSerial",
                                                XMLSignature.XMLNS, dsPrefix);
        Element inElem = DOMUtils.createElement(ownerDoc, "X509IssuerName",
                                                XMLSignature.XMLNS, dsPrefix);
        Element snElem = DOMUtils.createElement(ownerDoc, "X509SerialNumber",
                                                XMLSignature.XMLNS, dsPrefix);
        inElem.appendChild(ownerDoc.createTextNode(issuerName));
        snElem.appendChild(ownerDoc.createTextNode(serialNumber.toString()));
        isElem.appendChild(inElem);
        isElem.appendChild(snElem);
        parent.appendChild(isElem);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (!(obj instanceof X509IssuerSerial)) {
            return false;
        }
        X509IssuerSerial ois = (X509IssuerSerial)obj;
        return (issuerName.equals(ois.getIssuerName()) &&
                serialNumber.equals(ois.getSerialNumber()));
    }

    @Override
    public int hashCode() {
        int result = 17;
        result = 31 * result + issuerName.hashCode();
        result = 31 * result + serialNumber.hashCode();

        return result;
    }
}