/*

 * 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.

 */

package com.sun.org.apache.xml.internal.security.keys.content;

import com.sun.org.apache.xml.internal.security.exceptions.XMLSecurityException;

import com.sun.org.apache.xml.internal.security.signature.XMLSignatureException;

import com.sun.org.apache.xml.internal.security.transforms.Transforms;

import com.sun.org.apache.xml.internal.security.utils.Constants;

import com.sun.org.apache.xml.internal.security.utils.SignatureElementProxy;

import com.sun.org.apache.xml.internal.security.utils.XMLUtils;

import org.w3c.dom.Attr;

import org.w3c.dom.Document;

import org.w3c.dom.Element;

public class RetrievalMethod extends SignatureElementProxy implements KeyInfoContent {

    /** DSA retrieval */

    public static final String TYPE_DSA = Constants.SignatureSpecNS + "DSAKeyValue";

    /** RSA retrieval */

    public static final String TYPE_RSA = Constants.SignatureSpecNS + "RSAKeyValue";

    /** PGP retrieval */

    public static final String TYPE_PGP = Constants.SignatureSpecNS + "PGPData";

    /** SPKI retrieval */

    public static final String TYPE_SPKI = Constants.SignatureSpecNS + "SPKIData";

    /** MGMT retrieval */

    public static final String TYPE_MGMT = Constants.SignatureSpecNS + "MgmtData";

    /** X509 retrieval */

    public static final String TYPE_X509 = Constants.SignatureSpecNS + "X509Data";

    /** RAWX509 retrieval */

    public static final String TYPE_RAWX509 = Constants.SignatureSpecNS + "rawX509Certificate";

    /**

     * Constructor RetrievalMethod

     *

     * @param element

     * @param baseURI

     * @throws XMLSecurityException

     */

    public RetrievalMethod(Element element, String baseURI) throws XMLSecurityException {

        super(element, baseURI);

    }

    /**

     * Constructor RetrievalMethod

     *

     * @param doc

     * @param URI

     * @param transforms

     * @param Type

     */

    public RetrievalMethod(Document doc, String URI, Transforms transforms, String Type) {

        super(doc);

        setLocalAttribute(Constants._ATT_URI, URI);

        if (Type != null) {

            setLocalAttribute(Constants._ATT_TYPE, Type);

        }

        if (transforms != null) {

            appendSelf(transforms);

            addReturnToSelf();

        }

    }

    /**

     * Method getURIAttr

     *

     * @return the URI attribute

     */

    public Attr getURIAttr() {

        return getElement().getAttributeNodeNS(null, Constants._ATT_URI);

    }

    /**

     * Method getURI

     *

     * @return URI string

     */

    public String getURI() {

        return getLocalAttribute(Constants._ATT_URI);

    }

    /** @return the type*/

    public String getType() {

        return getLocalAttribute(Constants._ATT_TYPE);

    }

    /**

     * Method getTransforms

     *

     * @throws XMLSecurityException

     * @return the transformations

     */

    public Transforms getTransforms() throws XMLSecurityException {

        try {

            Element transformsElem =

                XMLUtils.selectDsNode(

                    getFirstChild(), Constants._TAG_TRANSFORMS, 0);

            if (transformsElem != null) {

                return new Transforms(transformsElem, this.baseURI);

            }

            return null;

        } catch (XMLSignatureException ex) {

            throw new XMLSecurityException(ex);

        }

    }

    /** {@inheritDoc} */

    public String getBaseLocalName() {

        return Constants._TAG_RETRIEVALMETHOD;

    }

}