/**
* 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.engines.qbe.QbeEngine;
import it.eng.spagobi.engines.qbe.QbeEngineConfig;
import it.eng.spagobi.engines.qbe.QbeEngineInstance;
import it.eng.spagobi.engines.qbe.template.QbeTemplateParseException;
import it.eng.spagobi.engines.qbe.worksheet.WorkSheet;
import it.eng.spagobi.utilities.engines.AbstractEngineStartAction;
import it.eng.spagobi.utilities.engines.EngineConstants;
import it.eng.spagobi.utilities.engines.SpagoBIEngineStartupException;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.List;
import java.util.Locale;
import javax.imageio.ImageIO;
import org.apache.log4j.Logger;
import org.json.JSONObject;
/**
* @author Davide Zerbetto (davide.zerbetto@eng.it)
*/
public class WorksheetEngineStartAction extends AbstractEngineStartAction {
// INPUT PARAMETERS
// 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(WorksheetEngineStartAction.class);
public static final String ENGINE_NAME = "SpagoBIWorksheetEngine";
public void service(SourceBean serviceRequest, SourceBean serviceResponse) {
QbeEngineInstance qbeEngineInstance = 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.getEnv().put("TEMPLATE", getTemplateAsSourceBean());
locale = (Locale)qbeEngineInstance.getEnv().get(EngineConstants.ENV_LOCALE);
setAttributeInSession( ENGINE_INSTANCE, qbeEngineInstance);
setAttribute(ENGINE_INSTANCE, qbeEngineInstance);
setAttribute(LANGUAGE, locale.getLanguage());
setAttribute(COUNTRY, locale.getCountry());
if(qbeEngineInstance!= null && qbeEngineInstance.getWorkSheetDefinition()!=null && qbeEngineInstance.getWorkSheetDefinition().getWorkSheet()!=null){
List<WorkSheet> ws = qbeEngineInstance.getWorkSheetDefinition().getWorkSheet();
for(int i=0; i<ws.size();i++){
setImageWidth((ws.get(i)).getHeader());
setImageWidth((ws.get(i)).getFooter());
}
}
} 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;
} finally {
logger.debug("OUT");
}
}
/**
* Set the with of the image in the template
* @param title The JSONObject rapresentation of the header/footer
* @throws Exception
*/
public static void setImageWidth(JSONObject title) throws Exception {
logger.debug("IN");
if(title!=null){
String s = title.optString("img");
if(s!=null && !s.equals("") && !s.equals("null")){
try {
logger.debug("Image file = "+s);
File toReturn = null;
File imagesDir = QbeEngineConfig.getInstance().getWorksheetImagesDir();
toReturn = new File(imagesDir, s);
BufferedImage img = ImageIO.read(toReturn);
int width= img.getWidth();
title.put("width", width);
} catch (Exception e) {
logger.error("Error loading the image "+s+": "+e);
}
}
}
logger.debug("OUT");
}
}