ingo@1022: /*
ingo@1022:  * Copyright (c) 2010 by Intevation GmbH
ingo@1022:  *
ingo@1022:  * This program is free software under the LGPL (>=v2.1)
ingo@1022:  * Read the file LGPL.txt coming with the software for details
ingo@1022:  * or visit http://www.gnu.org/licenses/ if it does not exist.
ingo@1022:  */
ingo@1022: 
tim@29: package de.intevation.gnv.action;
tim@29: 
sascha@683: import de.intevation.gnv.action.sessionmodel.DiagrammOptions;
sascha@683: import de.intevation.gnv.action.sessionmodel.SessionModel;
sascha@683: import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
sascha@683: 
sascha@683: import de.intevation.gnv.artifactdatabase.objects.ArtifactDescription;
sascha@683: import de.intevation.gnv.artifactdatabase.objects.OutputMode;
sascha@683: import de.intevation.gnv.artifactdatabase.objects.OutputParameter;
sascha@683: 
ingo@663: import java.text.NumberFormat;
ingo@663: import java.text.ParseException;
sascha@683: 
tim@30: import java.util.Collection;
tim@30: import java.util.Iterator;
ingo@663: import java.util.Locale;
ingo@407: import java.util.Map;
tim@30: 
tim@29: import javax.servlet.http.HttpServletRequest;
tim@29: import javax.servlet.http.HttpServletResponse;
tim@29: 
tim@29: import org.apache.log4j.Logger;
sascha@683: 
tim@29: import org.apache.struts.action.ActionForm;
tim@29: import org.apache.struts.action.ActionForward;
tim@29: import org.apache.struts.action.ActionMapping;
tim@29: 
tim@29: /**
ingo@690:  * This controller is called to change options used in charts and histograms
ingo@690:  * (e.g. width, height, etc).
ingo@690:  *
sascha@684:  * @author <a href="mailto:tim.englich@intevation.de">Tim Englich</a>
tim@29:  */
ingo@409: public class ChangeOptionsAction extends DescribeUIAction {
tim@29:     /**
tim@29:      * the logger, used to log exceptions and additonaly information
tim@29:      */
tim@29:     private static Logger log = Logger.getLogger(ChangeOptionsAction.class);
tim@36: 
tim@29:     /**
tim@29:      * Constructor
tim@29:      */
tim@29:     public ChangeOptionsAction() {
tim@29:         super();
tim@29:     }
tim@29: 
tim@29:     @Override
tim@29:     public ActionForward execute(ActionMapping mapping, ActionForm form,
tim@38:                                  HttpServletRequest request,
tim@38:                                  HttpServletResponse response) throws Exception {
ingo@991:         if (isSessionExhausted(request)) {
ingo@991:             return sessionExhaustedForward(mapping, form, request, response);
ingo@991:         }
ingo@991: 
tim@29:         log.debug("NextArtifactStepAction.execute");
tim@34:         try {
tim@36:             SessionModel sm = SessionModelFactory.getInstance()
tim@36:                     .getSessionModel(request);
tim@36: 
ingo@409:             ArtifactDescription ad = sm.getArtifactDescription();
ingo@409: 
ingo@967:             String target         = request.getParameter("target");
tim@34:             OutputMode outputMode = sm.getOutputMode(target);
ingo@967:             Locale locale         = sm.getCurrentLocale();
ingo@967: 
tim@36:             if (outputMode != null) {
tim@36:                 Collection<OutputParameter> op = outputMode
tim@36:                         .getOutputParameters();
tim@36:                 if (op != null) {
tim@34:                     Iterator<OutputParameter> it = op.iterator();
ingo@967:                     DiagrammOptions oldOptions      = sm.getDiagrammOptions();
tim@34:                     DiagrammOptions diagrammOptions = new DiagrammOptions();
tim@36:                     while (it.hasNext()) {
tim@34:                         OutputParameter parameter = it.next();
ingo@663:                         String name  = parameter.getName();
ingo@967:                         Object old   = oldOptions != null
ingo@967:                             ? oldOptions.getValue(name)
ingo@967:                             : parameter.getValue();
ingo@663:                         String value = request.getParameter(name);
ingo@663:                         String type  = parameter.getType();
ingo@663: 
ingo@663:                         if (log.isDebugEnabled()) {
ingo@663:                             log.debug("Change chart options now...");
ingo@663:                             log.debug("Parameter name: " + name);
ingo@663:                             log.debug("Parameter type: " + type);
ingo@663:                             log.debug("Parameter value: " + value);
ingo@663:                         }
ingo@663: 
ingo@663:                         if (type.equalsIgnoreCase("boolean")){
tim@289:                             if (value == null){
tim@289:                                 value = "false";
tim@289:                             }
ingo@407:                             else {
ingo@407:                                 value = "true";
ingo@407:                             }
ingo@663: 
ingo@663:                             diagrammOptions.setValue(name,value);
tim@289:                         }
ingo@663:                         else if (type.equalsIgnoreCase("integer")) {
ingo@663:                             if (validInteger(request.getLocale(), value)) {
ingo@663:                                 diagrammOptions.setValue(name, value);
ingo@663:                             }
ingo@663:                             else {
ingo@663:                                 log.warn("Text is not a valid integer: "+value);
ingo@663:                                 diagrammOptions.setValue(name, old);
tim@36: 
ingo@663:                                 request.setAttribute(
ingo@663:                                     CommunicationKeys.REQUEST_EXCEPTION_MESSAGE,
ingo@663:                                     "input.not.a.integer"
ingo@663:                                 );
ingo@663: 
ingo@663:                                 request.setAttribute(
ingo@663:                                     CommunicationKeys.REQUEST_EXCEPTION_VALUE,
ingo@663:                                     value
ingo@663:                                 );
ingo@663:                             }
ingo@663:                         }
ingo@663:                         else if (type.equalsIgnoreCase("double")) {
ingo@967:                             try {
ingo@967:                                 double val    = parseDoubleValue(locale, value);
ingo@967:                                 String valStr = Double.toString(val);
ingo@967:                                 log.debug("Change diagram options ["
ingo@967:                                     + name +"] to " + val);
ingo@967:                                 diagrammOptions.setValue(name, val);
ingo@663:                             }
ingo@967:                             catch (ParseException pe) {
ingo@663:                                 log.warn("Text is not a valid double: "+value);
ingo@663:                                 diagrammOptions.setValue(name, old);
ingo@663: 
ingo@663:                                 request.setAttribute(
ingo@663:                                     CommunicationKeys.REQUEST_EXCEPTION_MESSAGE,
ingo@663:                                     "input.not.a.double"
ingo@663:                                 );
ingo@663: 
ingo@663:                                 request.setAttribute(
ingo@663:                                     CommunicationKeys.REQUEST_EXCEPTION_VALUE,
ingo@663:                                     value
ingo@663:                                 );
ingo@663:                             }
ingo@663:                         }
tim@34:                     }
tim@34:                     sm.setDiagrammOptions(diagrammOptions);
ingo@575: 
ingo@575:                     // XXX Little workarround. We should implement a 'choice' type,
ingo@575:                     // if we need further choice elements! (iw)
ingo@575:                     String bintype = request.getParameter("bintype");
ingo@575:                     if (bintype != null) {
ingo@575:                         diagrammOptions.setValue("bintype", bintype);
ingo@575:                         sm.setDiagrammOptions(diagrammOptions);
ingo@575:                         request.setAttribute("bintype", bintype);
ingo@575:                     }
tim@30:                 }
tim@30:             }
tim@36: 
ingo@407:             Map tmpOuts = ad.getOutputModes();
ingo@407:             if (tmpOuts == null || tmpOuts.isEmpty()) {
ingo@407:                 request.setAttribute("furthertargets", true);
ingo@407:             }
ingo@407:             else {
ingo@573:                 request.setAttribute(target, true);
tim@34:             }
ingo@407: 
tim@34:             return super.execute(mapping, form, request, response);
tim@34:         } catch (Exception e) {
tim@36:             log.error(e, e);
tim@36:             request.setAttribute(
tim@36:                     CommunicationKeys.REQUEST_EXCEPTION_MESSAGE_ID, e
tim@36:                             .getMessage());
tim@34:             return super.getExceptionForward(mapping);
tim@30:         }
tim@29:     }
tim@29: 
ingo@663:     protected boolean validInteger(Locale locale, String value) {
ingo@663:         try {
ingo@663:             if (value.split("\\.").length > 1 || value.split("\\,").length > 1){
ingo@663:                 return false;
ingo@663:             }
ingo@663: 
ingo@663:             NumberFormat format = NumberFormat.getIntegerInstance(locale);
ingo@663:             format.setParseIntegerOnly(true);
ingo@663:             Number       number = format.parse(value);
ingo@663: 
ingo@663:             if (number.longValue() < 0)
ingo@663:                 return false;
ingo@663: 
ingo@663:             return (number instanceof Integer) || (number instanceof Long);
ingo@663:         }
ingo@663:         catch (ParseException pe) {
ingo@663:             return false;
ingo@663:         }
ingo@663:     }
ingo@663: 
ingo@967:     protected double parseDoubleValue(Locale locale, String value)
ingo@967:     throws ParseException
ingo@967:     {
ingo@967:         log.error("LOCALE FOR DOUBLE PARSING: " + locale.toString());
ingo@967:         NumberFormat format = NumberFormat.getNumberInstance(locale);
ingo@967:         Number       number = format.parse(value);
ingo@663: 
ingo@967:         return number.doubleValue();
ingo@663:     }
tim@29: }
ingo@409: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :