Package org.pentaho.reporting.engine.classic.core.modules.parser.ext.readhandlers

Source Code of org.pentaho.reporting.engine.classic.core.modules.parser.ext.readhandlers.ReportDefinitionReadHandler

/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Lesser General Public License for more details.
*
* Copyright (c) 2001 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors..  All rights reserved.
*/

package org.pentaho.reporting.engine.classic.core.modules.parser.ext.readhandlers;

import org.pentaho.reporting.engine.classic.core.AttributeNames;
import org.pentaho.reporting.engine.classic.core.MasterReport;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.PropertyAttributes;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.ReportParserUtil;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.common.AbstractPropertyXmlReadHandler;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.common.FunctionsReadHandler;
import org.pentaho.reporting.engine.classic.core.modules.parser.base.common.IncludeReadHandler;
import org.pentaho.reporting.engine.classic.core.modules.parser.ext.factory.base.ClassFactoryCollector;
import org.pentaho.reporting.engine.classic.core.modules.parser.ext.factory.datasource.DataSourceCollector;
import org.pentaho.reporting.engine.classic.core.modules.parser.ext.factory.elements.ElementFactoryCollector;
import org.pentaho.reporting.engine.classic.core.modules.parser.ext.factory.stylekey.StyleKeyFactoryCollector;
import org.pentaho.reporting.engine.classic.core.modules.parser.ext.factory.templates.TemplateCollector;
import org.pentaho.reporting.libraries.xmlns.parser.RootXmlReadHandler;
import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler;
import org.xml.sax.SAXException;

public class ReportDefinitionReadHandler extends AbstractPropertyXmlReadHandler
{
  public static final String ELEMENT_FACTORY_KEY = "::element-factory";
  public static final String STYLE_FACTORY_KEY = "::stylekey-factory";
  public static final String CLASS_FACTORY_KEY = "::class-factory";
  public static final String DATASOURCE_FACTORY_KEY = "::datasource-factory";
  public static final String TEMPLATE_FACTORY_KEY = "::template-factory";

  private MasterReport report;

  public ReportDefinitionReadHandler()
  {
  }
 
  /**
   * Initialises the handler.
   *
   * @param rootHandler the root handler.
   * @param tagName     the tag name.
   */
  public void init(final RootXmlReadHandler rootHandler, final String uri, final String tagName)
  {
    super.init(rootHandler, uri, tagName);
    rootHandler.setHelperObject("property-expansion", Boolean.TRUE);
  }


  /**
   * Starts parsing.
   *
   * @param attrs the attributes.
   * @throws org.xml.sax.SAXException if there is a parsing error.
   */
  protected void startParsing(final PropertyAttributes attrs)
      throws SAXException
  {
    final Object maybeReport = getRootHandler().getHelperObject
        (ReportParserUtil.HELPER_OBJ_REPORT_NAME);
    final MasterReport report;
    if (maybeReport instanceof MasterReport == false)
    {
      // replace it ..
      report = new MasterReport();
      report.setAttribute(AttributeNames.Core.NAMESPACE, AttributeNames.Core.SOURCE, getRootHandler().getSource());
    }
    else
    {
      report = (MasterReport) maybeReport;
    }

    final RootXmlReadHandler parser = getRootHandler();
    if (ReportParserUtil.isIncluded(parser) == false)
    {
      final String query = attrs.getValue(getUri(), "query");
      if (query != null)
      {
        report.setQuery(query);
      }

      final String value = attrs.getValue(getUri(), "name");
      if (value != null)
      {
        report.setName(value);
      }
    }
    final ElementFactoryCollector elementFactory = new ElementFactoryCollector();
    final StyleKeyFactoryCollector styleKeyFactory = new StyleKeyFactoryCollector();
    final ClassFactoryCollector classFactory = new ClassFactoryCollector();
    final DataSourceCollector dataSourceFactory = new DataSourceCollector();
    final TemplateCollector templateFactory = new TemplateCollector();

    classFactory.configure(getRootHandler().getParserConfiguration());
    dataSourceFactory.configure(getRootHandler().getParserConfiguration());
    templateFactory.configure(getRootHandler().getParserConfiguration());

    getRootHandler().setHelperObject(ReportParserUtil.HELPER_OBJ_REPORT_NAME, report);
    getRootHandler().setHelperObject(ReportDefinitionReadHandler.ELEMENT_FACTORY_KEY, elementFactory);
    getRootHandler().setHelperObject(ReportDefinitionReadHandler.STYLE_FACTORY_KEY, styleKeyFactory);
    getRootHandler().setHelperObject(ReportDefinitionReadHandler.CLASS_FACTORY_KEY, classFactory);
    getRootHandler().setHelperObject(ReportDefinitionReadHandler.DATASOURCE_FACTORY_KEY, dataSourceFactory);
    getRootHandler().setHelperObject(ReportDefinitionReadHandler.TEMPLATE_FACTORY_KEY, templateFactory);

    report.setAttribute(AttributeNames.Internal.NAMESPACE, AttributeNames.Internal.FILEFORMAT, "extended-xml");
    this.report = report;
  }

  /**
   * 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 PropertyAttributes atts)
      throws SAXException
  {
    if (isSameNamespace(uri) == false)
    {
      return null;
    }

    if ("parser-config".equals(tagName))
    {
      return new ParserConfigReadHandler();
    }
    else if ("report-config".equals(tagName))
    {
      return new ReportConfigReadHandler();
    }
    else if ("styles".equals(tagName))
    {
      return new StylesReadHandler();
    }
    else if ("templates".equals(tagName))
    {
      return new TemplatesReadHandler();
    }
    else if ("report-description".equals(tagName))
    {
      return new ReportDescriptionReadHandler();
    }
    else if ("functions".equals(tagName))
    {
      return new FunctionsReadHandler(report);
    }
    else if ("include".equals(tagName))
    {
      return new IncludeReadHandler();
    }
    return null;
  }

  /**
   * Returns the object for this element or null, if this element does not create an object.
   *
   * @return the object.
   */
  public Object getObject()
  {
    return getRootHandler().getHelperObject(ReportParserUtil.HELPER_OBJ_REPORT_NAME);
  }
}
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