Package it.eng.spagobi.engines.qbe.services.initializers

Source Code of it.eng.spagobi.engines.qbe.services.initializers.FormEngineStartAction

/**
* 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.initializers;

import it.eng.spago.base.SourceBean;
import it.eng.spagobi.commons.presentation.DynamicPublisher;
import it.eng.spagobi.engines.qbe.FormState;
import it.eng.spagobi.engines.qbe.QbeEngine;
import it.eng.spagobi.engines.qbe.QbeEngineAnalysisState;
import it.eng.spagobi.engines.qbe.QbeEngineInstance;
import it.eng.spagobi.engines.qbe.SmartFilterAnalysisState;
import it.eng.spagobi.engines.qbe.template.QbeTemplateParseException;
import it.eng.spagobi.utilities.engines.AbstractEngineStartAction;
import it.eng.spagobi.utilities.engines.EngineConstants;
import it.eng.spagobi.utilities.engines.SpagoBIEngineStartupException;

import java.util.Locale;

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


/**
* The Class QbeEngineStartAction.
*
* @author Andrea Gioia
*/
public class FormEngineStartAction extends AbstractEngineStartAction
 
  // INPUT PARAMETERS
  private final static String PARAM_MODALITY = "MODALITY";
 
  // OUTPUT PARAMETERS
  public static final String LANGUAGE = "LANGUAGE";
  public static final String COUNTRY = "COUNTRY";
 
  // SESSION PARAMETRES 
  public static final String ENGINE_INSTANCE = EngineConstants.ENGINE_INSTANCE;
 
 
  /** Logger component. */
    private static transient Logger logger = Logger.getLogger(FormEngineStartAction.class);
   
    public static final String ENGINE_NAME = "SpagoBIFormEngine";
 
    public void service(SourceBean serviceRequest, SourceBean serviceResponse) {
      QbeEngineInstance qbeEngineInstance = null;
      QbeEngineAnalysisState analysisState;
      SmartFilterAnalysisState analysisFormState = null;
      Locale locale;
     
     
      logger.debug("IN");
      
      try {
        setEngineName(ENGINE_NAME);
      super.service(serviceRequest, serviceResponse);
     
      logger.debug("User Id: " + getUserId());
      logger.debug("Audit Id: " + getAuditId());
      logger.debug("Document Id: " + getDocumentId());
      logger.debug("Template: " + getTemplateAsSourceBean());
           
      if(getAuditServiceProxy() != null) {
        logger.debug("Audit enabled: [TRUE]");
        getAuditServiceProxy().notifyServiceStartEvent();
      } else {
        logger.debug("Audit enabled: [FALSE]");
      }
     
      logger.debug("Creating engine instance ...");
      try {
        qbeEngineInstance = QbeEngine.createInstance(getTemplateAsSourceBean(), getEnv() );
      } catch(Throwable t) {
        SpagoBIEngineStartupException serviceException;
        String msg = "Impossible to create engine instance for document [" + getDocumentId() + "].";
        Throwable rootException = t;
        while(rootException.getCause() != null) {
          rootException = rootException.getCause();
        }
        String str = rootException.getMessage()!=null? rootException.getMessage(): rootException.getClass().getName();
        msg += "\nThe root cause of the error is: " + str;
        serviceException = new SpagoBIEngineStartupException(ENGINE_NAME, msg, t);
       
        if(rootException instanceof QbeTemplateParseException) {
          QbeTemplateParseException e = (QbeTemplateParseException)rootException;
          serviceException.setDescription( e.getDescription());
          serviceException.setHints( e.getHints() );
        }
       
        throw serviceException;
      }
      logger.debug("Engine instance succesfully created");
   
      qbeEngineInstance.setAnalysisMetadata( getAnalysisMetadata() );
 
     
      // initializes form state, if not already initialized (starting a new form definition)
      FormState formState = qbeEngineInstance.getFormState();
      if (formState == null) {
        logger.debug("Initializing a new form state object...");
        formState = new FormState();
        formState.setConf(new JSONObject());
        qbeEngineInstance.setFormState(formState);
      }
      //Integer subObjectId = getAttributeAsInteger("subobjectId");
     
     
      //get the form values saved (if the user has loaded a subobject)
      analysisFormState = new SmartFilterAnalysisState();
      analysisFormState.load( getAnalysisStateRowData() );
      formState.setFormStateValues(analysisFormState.getFormValues());
     
      //save the map id-->field name
      formState.setIdNameMap();
     
      qbeEngineInstance.getEnv().put("TEMPLATE", getTemplateAsSourceBean());
      String docId = this.getAttributeAsString("formDocumentId");
      if(docId != null) qbeEngineInstance.getEnv().put("DOCUMENT", docId);
      else {
        qbeEngineInstance.getEnv().put("DOCUMENT", this.getDocumentId());
      }
     
      locale = (Locale)qbeEngineInstance.getEnv().get(EngineConstants.ENV_LOCALE);
     
      setAttributeInSession( ENGINE_INSTANCE, qbeEngineInstance);   
      setAttribute(ENGINE_INSTANCE, qbeEngineInstance);
     
      setAttribute(LANGUAGE, locale.getLanguage());
      setAttribute(COUNTRY, locale.getCountry());
     
      String publisherName = "VIEW_FORM_ENGINE_PUBLISHER";
     
      String modality = this.getAttributeAsString(PARAM_MODALITY);
      logger.debug("Input " + PARAM_MODALITY + " parameter is " + modality);
      if (modality != null && modality.trim().equalsIgnoreCase("EDIT")) {
        // edit template
        publisherName = "EDIT_FORM_ENGINE_PUBLISHER";
      }
     
      serviceResponse.setAttribute(DynamicPublisher.PUBLISHER_NAME, publisherName);
     
    } catch (Throwable e) {
      SpagoBIEngineStartupException serviceException = null;
     
      if(e instanceof SpagoBIEngineStartupException) {
        serviceException = (SpagoBIEngineStartupException)e;
      } else {
        Throwable rootException = e;
        while(rootException.getCause() != null) {
          rootException = rootException.getCause();
        }
        String str = rootException.getMessage()!=null? rootException.getMessage(): rootException.getClass().getName();
        String message = "An unpredicted error occurred while executing " + getEngineName() + " service."
                 + "\nThe root cause of the error is: " + str;
       
        serviceException = new SpagoBIEngineStartupException(getEngineName(), message, e);
      }
     
      throw serviceException;
     
      //throw SpagoBIEngineServiceExceptionHandler.getInstance().getWrappedException(getActionName(), qbeEngineInstance, e);
    } finally {
      logger.debug("OUT");
    }   

   
  }
   
}
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