Package it.eng.spagobi.engines.qbe.services.core.catalogue

Source Code of it.eng.spagobi.engines.qbe.services.core.catalogue.SetCatalogueAction

/**
* SpagoBI - The Business Intelligence Free Platform
*
* Copyright (C) 2004 - 2008 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.engines.qbe.services.core.catalogue;

import it.eng.qbe.query.Query;
import it.eng.qbe.query.QueryMeta;
import it.eng.qbe.query.serializer.SerializerFactory;
import it.eng.qbe.serializer.SerializationException;
import it.eng.spago.base.SourceBean;
import it.eng.spagobi.engines.qbe.services.core.AbstractQbeEngineAction;
import it.eng.spagobi.utilities.assertion.Assert;
import it.eng.spagobi.utilities.engines.SpagoBIEngineServiceException;
import it.eng.spagobi.utilities.engines.SpagoBIEngineServiceExceptionHandler;
import it.eng.spagobi.utilities.service.JSONAcknowledge;

import java.io.IOException;

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


/**
* Commit all the modifications made to the catalogue on the client side
*
* @author Andrea Gioia (andrea.gioia@eng.it)
*/
public class SetCatalogueAction extends AbstractQbeEngineAction {
 
  public static final String SERVICE_NAME = "SET_CATALOGUE_ACTION";
  public String getActionName(){return SERVICE_NAME;}
 
  // INPUT PARAMETERS
  public static final String CATALOGUE = "catalogue";
 
  /** Logger component. */
    public static transient Logger logger = Logger.getLogger(SetCatalogueAction.class);
   
 
  public void service(SourceBean request, SourceBean response)  {       
   
    String jsonEncodedCatalogue = null;
    JSONArray queries;
    JSONObject itemJSON;
    JSONObject queryJSON;
    JSONObject metaJSON;
    Query query;
    QueryMeta meta;
   
    logger.debug("IN");
   
    try {
   
      super.service(request, response);   
     
      jsonEncodedCatalogue = getAttributeAsString( CATALOGUE );     
      logger.debug(CATALOGUE + " = [" + jsonEncodedCatalogue + "]");
     
      Assert.assertNotNull(getEngineInstance(), "It's not possible to execute " + this.getActionName() + " service before having properly created an instance of EngineInstance class");
      Assert.assertNotNull(jsonEncodedCatalogue, "Input parameter [" + CATALOGUE + "] cannot be null in oder to execute " + this.getActionName() + " service");
     
     
      try {   
        queries = new JSONArray( jsonEncodedCatalogue );
        for(int i = 0; i < queries.length(); i++) {         
          queryJSON = queries.getJSONObject(i);
          query = deserializeQuery(queryJSON);
         
          getEngineInstance().getQueryCatalogue().addQuery(query);
          getEngineInstance().resetActiveQuery();
        }       
       
      } catch (SerializationException e) {
        String message = "Impossible to syncronize the query with the server. Query passed by the client is malformed";
        throw new SpagoBIEngineServiceException(getActionName(), message, e);
      }
     
      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(Throwable t) {
      throw SpagoBIEngineServiceExceptionHandler.getInstance().getWrappedException(getActionName(), getEngineInstance(), t);
    } finally {
      logger.debug("OUT");
    }
   
   
  }


  private QueryMeta deserializeMeta(JSONObject metaJSON) throws JSONException {
    QueryMeta meta = new QueryMeta();
    meta.setId( metaJSON.getString("id") );
    meta.setName( metaJSON.getString("name") );
    return null;
  }


  private Query deserializeQuery(JSONObject queryJSON) throws SerializationException, JSONException {
    //queryJSON.put("expression", queryJSON.get("filterExpression"));
    return SerializerFactory.getDeserializer("application/json").deserializeQuery(queryJSON.toString(), getEngineInstance().getDataSource());
  }

}
TOP

Related Classes of it.eng.spagobi.engines.qbe.services.core.catalogue.SetCatalogueAction

TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.