# PDDestinationNameTreeNode.java

    /*
     * 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 org.apache.pdfbox.pdmodel;

    import java.io.IOException;
    import org.apache.pdfbox.cos.COSBase;
    import org.apache.pdfbox.cos.COSDictionary;
    import org.apache.pdfbox.cos.COSName;
    import org.apache.pdfbox.pdmodel.common.PDNameTreeNode;
    import org.apache.pdfbox.pdmodel.interactive.documentnavigation.destination.PDDestination;
    import org.apache.pdfbox.pdmodel.interactive.documentnavigation.destination.PDPageDestination;

    /**
     * This class holds all of the name trees that are available at the document level.
     *
     * @author Ben Litchfield
     */
    public class PDDestinationNameTreeNode extends PDNameTreeNode<PDPageDestination>
    {
        /**
         * Constructor.
         */
        public PDDestinationNameTreeNode()
        {
            super();
        }

        /**
         * Constructor.
         *
         * @param dic The COS dictionary.
         */
        public PDDestinationNameTreeNode( COSDictionary dic )
        {
            super(dic);
        }

        @Override
        protected PDPageDestination convertCOSToPD( COSBase base ) throws IOException
        {
            COSBase destination = base;
            if( base instanceof COSDictionary )
            {
                //the destination is sometimes stored in the D dictionary
                //entry instead of being directly an array, so just dereference
                //it for now
                destination = ((COSDictionary)base).getDictionaryObject( COSName.D );
            }
            return (PDPageDestination)PDDestination.create( destination );
        }

        @Override
        protected PDNameTreeNode<PDPageDestination> createChildNode( COSDictionary dic )
        {
            return new PDDestinationNameTreeNode(dic);
        }
    }