Package it.eng.spagobi.analiticalmodel.execution.service

Source Code of it.eng.spagobi.analiticalmodel.execution.service.SaveMetadataAction

/**

SpagoBI - The Business Intelligence Free Platform

Copyright (C) 2005-2009 Engineering Ingegneria Informatica S.p.A.

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

**/
package it.eng.spagobi.analiticalmodel.execution.service;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.util.Date;

import org.apache.log4j.Logger;
import org.json.JSONArray;
import org.json.JSONObject;

import it.eng.spagobi.analiticalmodel.document.bo.BIObject;
import it.eng.spagobi.commons.dao.DAOFactory;
import it.eng.spagobi.commons.serializer.MetadataJSONSerializer;
import it.eng.spagobi.commons.services.AbstractSpagoBIAction;
import it.eng.spagobi.commons.utilities.indexing.LuceneIndexer;
import it.eng.spagobi.tools.objmetadata.bo.ObjMetacontent;
import it.eng.spagobi.tools.objmetadata.dao.IObjMetacontentDAO;
import it.eng.spagobi.utilities.engines.SpagoBIEngineServiceException;
import it.eng.spagobi.utilities.exceptions.SpagoBIServiceException;
import it.eng.spagobi.utilities.service.JSONAcknowledge;

/**
*
* @author Zerbetto Davide
*
*/
public class SaveMetadataAction extends AbstractSpagoBIAction {
 
  public static final String SERVICE_NAME = "SAVE_METADATA_ACTION";
 
  // REQUEST PARAMETERS
  public static final String OBJECT_ID = "OBJECT_ID";
  public static final String SUBOBJECT_ID = "SUBOBJECT_ID";
  public static final String METADATA = "METADATA";
 
  // logger component
  private static Logger logger = Logger.getLogger(SaveMetadataAction.class);
 
  public void doService() {
    logger.debug("IN");
    try {
      IObjMetacontentDAO dao=DAOFactory.getObjMetacontentDAO();
      dao.setUserProfile(getUserProfile());
      Integer biobjectId = this.getAttributeAsInteger(OBJECT_ID);
      logger.debug("Object id = " + biobjectId);
      Integer subobjectId = null;
      try {
        subobjectId = this.getAttributeAsInteger(SUBOBJECT_ID);
      } catch (NumberFormatException e) {}
      logger.debug("Subobject id = " + subobjectId);
      String jsonEncodedMetadata = getAttributeAsString( METADATA );
      try {
        CharsetDecoder decoder=Charset.forName("UTF-8").newDecoder();
        jsonEncodedMetadata=decoder.decode(ByteBuffer.wrap(jsonEncodedMetadata.getBytes())).toString();
      } catch(Throwable t) {
        // firefox
      }

     
      logger.debug(METADATA + " = [" + jsonEncodedMetadata + "]");
      JSONArray metadata = new JSONArray(jsonEncodedMetadata);
      for (int i = 0; i < metadata.length(); i++) {         
        JSONObject aMetadata = metadata.getJSONObject(i);
        Integer metadataId = aMetadata.getInt(MetadataJSONSerializer.METADATA_ID);
        String text = aMetadata.getString(MetadataJSONSerializer.TEXT);
        ObjMetacontent aObjMetacontent = dao.loadObjMetacontent(metadataId, biobjectId, subobjectId);
        if (aObjMetacontent == null) {
          logger.debug("ObjMetacontent for metadata id = " + metadataId + ", biobject id = " + biobjectId +
              ", subobject id = " + subobjectId + " was not found, creating a new one...");
          aObjMetacontent = new ObjMetacontent();
          aObjMetacontent.setObjmetaId(metadataId);
          aObjMetacontent.setBiobjId(biobjectId);
          aObjMetacontent.setSubobjId(subobjectId);
          aObjMetacontent.setContent(text.getBytes("UTF-8"));
          aObjMetacontent.setCreationDate(new Date());
          aObjMetacontent.setLastChangeDate(new Date());
          dao.insertObjMetacontent(aObjMetacontent);
        } else {
          logger.debug("ObjMetacontent for metadata id = " + metadataId + ", biobject id = " + biobjectId +
              ", subobject id = " + subobjectId + " was found, it will be modified...");
          aObjMetacontent.setContent(text.getBytes("UTF-8"));
          aObjMetacontent.setLastChangeDate(new Date());
          dao.modifyObjMetacontent(aObjMetacontent);
        }

      }   
      /*
      *indexes biobject by modifying document in index
      **/
      BIObject biObjToIndex = DAOFactory.getBIObjectDAO().loadBIObjectById(biobjectId);
      LuceneIndexer.updateBiobjInIndex(biObjToIndex, false);
     
     
      try {
        writeBackToClient( new JSONAcknowledge() );
      } catch (IOException e) {
        String message = "Impossible to write back the responce to the client";
        throw new SpagoBIEngineServiceException(getActionName(), message, e);
      }
     
    } catch (Exception e) {
      throw new SpagoBIServiceException(SERVICE_NAME, "Exception occurred while saving metadata", e);
    } finally {
      logger.debug("OUT");
    }
  }

}
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