/*

 * 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.

 */

/*

 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.

 */

package org.jcp.xml.dsig.internal.dom;

import javax.xml.crypto.MarshalException;

import javax.xml.crypto.XMLStructure;

import javax.xml.crypto.dom.DOMCryptoContext;

import org.w3c.dom.Node;

import java.util.List;

/**

 * DOM-based abstract implementation of XMLStructure.

 *

 */

public abstract class DOMStructure implements XMLStructure {

    public final boolean isFeatureSupported(String feature) {

        if (feature == null) {

            throw new NullPointerException();

        } else {

            return false;

        }

    }

    public abstract void marshal(Node parent, String dsPrefix,

        DOMCryptoContext context) throws MarshalException;

    protected boolean equalsContent(List<XMLStructure> content, List<XMLStructure> otherContent) {

        int size = content.size();

        if (size != otherContent.size()) {

            return false;

        }

        for (int i = 0; i < size; i++) {

            XMLStructure oxs = otherContent.get(i);

            XMLStructure xs = content.get(i);

            if (oxs instanceof javax.xml.crypto.dom.DOMStructure) {

                if (!(xs instanceof javax.xml.crypto.dom.DOMStructure)) {

                    return false;

                }

                Node otherNode = ((javax.xml.crypto.dom.DOMStructure)oxs).getNode();

                Node node = ((javax.xml.crypto.dom.DOMStructure)xs).getNode();

                if (!DOMUtils.nodesEqual(node, otherNode)) {

                    return false;

                }

            } else {

                if (!(xs.equals(oxs))) {

                    return false;

                }

            }

        }

        return true;

    }

}