/*

 * 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.

 */

/*

 * WARNING: because java doesn't support multi-inheritance some code is

 * duplicated. If you're changing this file you probably want to change

 * DeferredElementImpl.java at the same time.

 *

 */

package com.sun.org.apache.xerces.internal.dom;

import com.sun.org.apache.xerces.internal.xni.NamespaceContext;

import com.sun.org.apache.xerces.internal.xs.XSTypeDefinition;

import org.w3c.dom.NamedNodeMap;

/**

 * DeferredElementNSImpl is to ElementNSImpl, what DeferredElementImpl is to

 * ElementImpl.

 *

 * @xerces.internal

 *

 * @see DeferredElementImpl

 */

public class DeferredElementNSImpl

    extends ElementNSImpl

    implements DeferredNode {

    //

    // Constants

    //

    /** Serialization version. */

    static final long serialVersionUID = -5001885145370927385L;

    //

    // Data

    //

    /** Node index. */

    protected transient int fNodeIndex;

    //

    // Constructors

    //

    /**

     * This is the deferred constructor. Only the fNodeIndex is given here. All

     * other data, can be requested from the ownerDocument via the index.

     */

    DeferredElementNSImpl(DeferredDocumentImpl ownerDoc, int nodeIndex) {

        super(ownerDoc, null);

        fNodeIndex = nodeIndex;

        needsSyncChildren(true);

    } // <init>(DocumentImpl,int)

    //

    // DeferredNode methods

    //

    /** Returns the node index. */

    public final int getNodeIndex() {

        return fNodeIndex;

    }

    //

    // Protected methods

    //

    /** Synchronizes the data (name and value) for fast nodes. */

    protected final void synchronizeData() {

        // no need to sync in the future

        needsSyncData(false);

        // fluff data

        DeferredDocumentImpl ownerDocument =

            (DeferredDocumentImpl) this.ownerDocument;

        // we don't want to generate any event for this so turn them off

        boolean orig = ownerDocument.mutationEvents;

        ownerDocument.mutationEvents = false;

        name = ownerDocument.getNodeName(fNodeIndex);

        // extract local part from QName

        int index = name.indexOf(':');

        if (index < 0) {

            localName = name;

        }

        else {

            localName = name.substring(index + 1);

        }

            namespaceURI = ownerDocument.getNodeURI(fNodeIndex);

        type = (XSTypeDefinition)ownerDocument.getTypeInfo(fNodeIndex);

        // attributes

        setupDefaultAttributes();

        int attrIndex = ownerDocument.getNodeExtra(fNodeIndex);

        if (attrIndex != -1) {

            NamedNodeMap attrs = getAttributes();

            boolean seenSchemaDefault = false;

            do {

                AttrImpl attr = (AttrImpl) ownerDocument.getNodeObject(attrIndex);

                // Take special care of schema defaulted attributes. Calling the

                // non-namespace aware setAttributeNode() method could overwrite

                // another attribute with the same local name.

                if (!attr.getSpecified() && (seenSchemaDefault ||

                    (attr.getNamespaceURI() != null &&

                    attr.getNamespaceURI() != NamespaceContext.XMLNS_URI &&

                    attr.getName().indexOf(':') < 0))) {

                    seenSchemaDefault = true;

                    attrs.setNamedItemNS(attr);

                }

                else {

                    attrs.setNamedItem(attr);

                }

                attrIndex = ownerDocument.getPrevSibling(attrIndex);

            } while (attrIndex != -1);

        }

        // set mutation events flag back to its original value

        ownerDocument.mutationEvents = orig;

    } // synchronizeData()

    /**

     * Synchronizes the node's children with the internal structure.

     * Fluffing the children at once solves a lot of work to keep

     * the two structures in sync. The problem gets worse when

     * editing the tree -- this makes it a lot easier.

     */

    protected final void synchronizeChildren() {

        DeferredDocumentImpl ownerDocument =

            (DeferredDocumentImpl) ownerDocument();

        ownerDocument.synchronizeChildren(this, fNodeIndex);

    } // synchronizeChildren()

} // class DeferredElementImpl