Package org.pentaho.reporting.engine.classic.extensions.datasources.pmd.writer

Source Code of org.pentaho.reporting.engine.classic.extensions.datasources.pmd.writer.PmdDataFactoryWriteHandler

/*!
* 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) 2002-2013 Pentaho Corporation..  All rights reserved.
*/

package org.pentaho.reporting.engine.classic.extensions.datasources.pmd.writer;

import java.io.IOException;

import org.pentaho.reporting.engine.classic.core.DataFactory;
import org.pentaho.reporting.engine.classic.core.modules.parser.extwriter.DataFactoryWriteHandler;
import org.pentaho.reporting.engine.classic.core.modules.parser.extwriter.ReportWriterContext;
import org.pentaho.reporting.engine.classic.core.modules.parser.extwriter.ReportWriterException;
import org.pentaho.reporting.engine.classic.extensions.datasources.pmd.PmdDataFactory;
import org.pentaho.reporting.engine.classic.extensions.datasources.pmd.PmdDataFactoryModule;
import org.pentaho.reporting.libraries.base.util.StringUtils;
import org.pentaho.reporting.libraries.xmlns.common.AttributeList;
import org.pentaho.reporting.libraries.xmlns.writer.XmlWriter;
import org.pentaho.reporting.libraries.xmlns.writer.XmlWriterSupport;

public class PmdDataFactoryWriteHandler implements DataFactoryWriteHandler
{
  public PmdDataFactoryWriteHandler()
  {
  }

  /**
   * Writes a data-source into a XML-stream.
   *
   * @param reportWriter
   *          the writer context that holds all factories.
   * @param xmlWriter
   *          the XML writer that will receive the generated XML data.
   * @param dataFactory
   *          the data factory that should be written.
   * @throws IOException
   *           if any error occured
   * @throws ReportWriterException
   *           if the data factory cannot be written.
   */
  public void write(final ReportWriterContext reportWriter, final XmlWriter xmlWriter, final DataFactory dataFactory) throws IOException, ReportWriterException
  {
    final PmdDataFactory df = (PmdDataFactory) dataFactory;

    final AttributeList rootAttrs = new AttributeList();
    rootAttrs.addNamespaceDeclaration("data", PmdDataFactoryModule.NAMESPACE);

    xmlWriter.writeTag(PmdDataFactoryModule.NAMESPACE, "pmd-datasource", rootAttrs, XmlWriter.OPEN);

    final AttributeList configAttrs = new AttributeList();
    configAttrs.setAttribute(PmdDataFactoryModule.NAMESPACE, "domain", String.valueOf(df.getDomainId()));
    configAttrs.setAttribute(PmdDataFactoryModule.NAMESPACE, "xmi-file", String.valueOf(df.getXmiFile()));
    xmlWriter.writeTag(PmdDataFactoryModule.NAMESPACE, "config", configAttrs, XmlWriterSupport.CLOSE);


    final String globalScript = df.getGlobalScript();
    final String globalScriptLanguage = df.getGlobalScriptLanguage();
    if (StringUtils.isEmpty(globalScript) == false && StringUtils.isEmpty(globalScriptLanguage) == false)
    {
      xmlWriter.writeTag
          (PmdDataFactoryModule.NAMESPACE, "global-script", "language", globalScriptLanguage, XmlWriterSupport.OPEN);
      xmlWriter.writeTextNormalized(globalScript, false);
      xmlWriter.writeCloseTag();
    }

    xmlWriter.writeTag(PmdDataFactoryModule.NAMESPACE, "query-definitions", XmlWriterSupport.OPEN);
    final String[] queryNames = df.getQueryNames();
    for (int i = 0; i < queryNames.length; i++)
    {
      final String queryName = queryNames[i];
      final String query = df.getQuery(queryName);
      xmlWriter.writeTag(PmdDataFactoryModule.NAMESPACE, "query", "name", queryName, XmlWriterSupport.OPEN);

      xmlWriter.writeTag(PmdDataFactoryModule.NAMESPACE, "static-query", XmlWriterSupport.OPEN);
      xmlWriter.writeTextNormalized(query, false);
      xmlWriter.writeCloseTag();

      final String queryScriptLanguage = df.getScriptingLanguage(queryName);
      final String queryScript = df.getScript(queryName);

      if (StringUtils.isEmpty(queryScript) == false &&
          (StringUtils.isEmpty(queryScriptLanguage) == false || StringUtils.isEmpty(globalScriptLanguage) == false))
      {
        if (StringUtils.isEmpty(queryScriptLanguage))
        {
          xmlWriter.writeTag(PmdDataFactoryModule.NAMESPACE, "script", XmlWriterSupport.OPEN);
        }
        else
        {
          xmlWriter.writeTag(PmdDataFactoryModule.NAMESPACE, "script", "language", queryScriptLanguage, XmlWriterSupport.OPEN);
        }
        xmlWriter.writeTextNormalized(queryScript, false);
        xmlWriter.writeCloseTag();
      }

      xmlWriter.writeCloseTag();
    }
    xmlWriter.writeCloseTag();

    xmlWriter.writeCloseTag();
  }

}
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