AOO410/main/reportbuilder/java/com/sun/star/report/pentaho/parser/rpt/SubDocumentReadHandler.java

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 * 
 * 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
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 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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package com.sun.star.report.pentaho.parser.rpt;

import com.sun.star.report.OfficeToken;
import com.sun.star.report.pentaho.OfficeNamespaces;
import com.sun.star.report.pentaho.model.ObjectOleElement;
import com.sun.star.report.pentaho.parser.draw.ObjectOleReadHandler;
import com.sun.star.report.pentaho.parser.text.NoCDATATextContentReadHandler;

import org.jfree.report.structure.Section;

import org.pentaho.reporting.libraries.xmlns.parser.IgnoreAnyChildReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;

import org.xml.sax.Attributes;
import org.xml.sax.SAXException;

/**
 *
 * @author Ocke Janssen
 */
public class SubDocumentReadHandler extends NoCDATATextContentReadHandler
{

    private final ObjectOleElement element;
    private boolean ignore = false;

    public SubDocumentReadHandler(final ObjectOleElement element)
    {
        this.element = element;
    }

    public SubDocumentReadHandler(final Section section, final ObjectOleElement element)
    {
        super(section);
        this.element = element;
    }

    public SubDocumentReadHandler(final Section section)
    {
        this(section, new ObjectOleElement());
        ignore = true;
    }

    /**
     * Starts parsing.
     *
     * @param attrs the attributes.
     * @throws org.xml.sax.SAXException if there is a parsing error.
     */
    protected void startParsing(final Attributes attrs) throws SAXException
    {
        if (!ignore)
        {
            super.startParsing(attrs);
        }
    }

    /**
     * Returns the handler for a child element.
     *
     * @param tagName the tag name.
     * @param atts    the attributes.
     * @return the handler or null, if the tagname is invalid.
     * @throws org.xml.sax.SAXException if there is a parsing error.
     */
    protected XmlReadHandler getHandlerForChild(final String uri,
            final String tagName,
            final Attributes atts)
            throws SAXException
    {
        if (OfficeNamespaces.OOREPORT_NS.equals(uri))
        {
            // expect a report control. The control will modifiy the current
            // element (as we do not separate the elements that strictly ..)
            if ("report-control".equals(tagName))
            {
                return new IgnoreAnyChildReadHandler();
            }
            if ("report-element".equals(tagName))
            {
                return new ReportElementReadHandler(element);
            }
            if ("master-detail-fields".equals(tagName))
            {
                return new MasterDetailReadHandler(element);
            }
        }
        if (OfficeNamespaces.DRAWING_NS.equals(uri))
        {
            final XmlReadHandler readHandler;
            if (OfficeToken.OBJECT_OLE.equals(tagName))
            {
                readHandler = new ObjectOleReadHandler(element);
            }
            else if ("frame".equals(tagName))
            {
                readHandler = new SubDocumentReadHandler(new Section(), element);
            }
            else
            {
                readHandler = null;
            }
            if (readHandler != null)
            {
                getChildren().add(readHandler);
                return readHandler;
            }
        }
        return super.getHandlerForChild(uri, tagName, atts);
    }
}