/*

  * Copyright 2007-2008 The Kuali Foundation

  *

  * Licensed under the Educational Community License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  * http://www.opensource.org/licenses/ecl2.php

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package edu.sampleu.travel.workflow;

 import java.util.ArrayList;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import org.kuali.rice.kns.web.ui.Field;

 import org.kuali.rice.kns.web.ui.Row;

 import org.kuali.rice.kew.rule.GenericWorkflowAttribute;

 import org.kuali.rice.kew.rule.WorkflowAttributeValidationError;

 public class DestinationRuleAttribute extends GenericWorkflowAttribute {

         private static final String DEST_LABEL = "Destination";

         private static final String DEST_FIELD_KEY = "destination";

     private final List<Row> rows = new ArrayList<Row>();

         private String destination;

     public DestinationRuleAttribute() {

         super("destination");

     }

     public DestinationRuleAttribute(String destination) {

         super("destination");

         this.destination = destination;

     }

     /*

         public boolean isMatch(DocumentContent docContent, List<RuleExtension> ruleExtensions) {

                 try {

                         boolean foundDestRule = false;

                         for (Iterator extensionsIterator = ruleExtensions.iterator(); extensionsIterator.hasNext();) {

                     RuleExtension extension = (RuleExtension) extensionsIterator.next();

                     if (extension.getRuleTemplateAttribute().getRuleAttribute().getClassName().equals(getClass().getName())) {

                         for (Iterator valuesIterator = extension.getExtensionValues().iterator(); valuesIterator.hasNext();) {

                             RuleExtensionValue extensionValue = (RuleExtensionValue) valuesIterator.next();

                             String key = extensionValue.getKey();

                             String value = extensionValue.getValue();

                             if (key.equals(DEST_FIELD_KEY)) {

                                     destination = value;

                                     foundDestRule = true;

                             }

                         }

                     }

                 }

                         if (! foundDestRule) {

                                 return false;

                         }

                         Element element = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(

                                         new InputSource(new BufferedReader(new StringReader(docContent.getDocContent())))).getDocumentElement();

                         XPath xpath = XPathFactory.newInstance().newXPath();

                         String docContentDest = xpath.evaluate("//destination", element);

                         return destination.equals(docContentDest);

                 } catch (Exception e) {

                         throw new RuntimeException(e);

                 }

         }*/

         public List<Row> getRuleRows() {

                 return getRows();

         }

         public List<Row> getRoutingDataRows() {

                 return getRows();

         }

     private List<Row> getRows() {

         log.info("Returning rows: " + rows);

         List<Field> fields = new ArrayList<Field>();

         fields.add(new Field(DEST_LABEL, "", Field.TEXT, false, DEST_FIELD_KEY, "", false, false, null, null));

         List<Row> rows = new ArrayList<Row>();

         rows.add(new Row(fields));

         return rows;

     }

     /* setter for edoclite field */

     public void setDestination(String destination) {

         this.destination = destination;

     }

     public Map<String, String> getProperties() {

         Map<String, String> props = new HashMap<String, String>();

         props.put("destination", destination);

         return props;

     }

         public List validateRoutingData(Map paramMap) {

                 return validateInputMap(paramMap);

         }

         public List validateRuleData(Map paramMap) {

                 return validateInputMap(paramMap);

         }

     private List validateInputMap(Map paramMap) {

             List errors = new ArrayList();

             this.destination = (String) paramMap.get(DEST_FIELD_KEY);

             if (this.destination == null  && required) {

                     errors.add(new WorkflowAttributeValidationError(DEST_FIELD_KEY, "Destination is required."));

             }

             return errors;

     }

 }