/*
    * Copyright 2005-2007 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 org.kuali.rice.kew.xml.export;
  
  import java.io.BufferedInputStream;
  import java.io.ByteArrayInputStream;
  import java.util.Iterator;
  import java.util.List;
  
  import org.apache.commons.lang.StringUtils;
  import org.junit.Test;
  import org.kuali.rice.kew.export.ExportDataSet;
  import org.kuali.rice.kew.rule.bo.RuleAttribute;
  import org.kuali.rice.kew.rule.bo.RuleTemplateAttribute;
  import org.kuali.rice.kew.service.KEWServiceLocator;
  
  
  public class RuleAttributeXmlExporterTest extends XmlExporterTestCase {
      
      /**
       * This will test some rule attributes with routing and searching config.
       */
  	@Test public void testExport() throws Exception {
          loadXmlFile("RuleAttributeExportConfig.xml");
          assertExport();
      }
          
      protected void assertExport() throws Exception {
          // export all existing rule attributes
          List oldRuleAttributes = KEWServiceLocator.getRuleAttributeService().findAll();
          ExportDataSet dataSet = new ExportDataSet();
          dataSet.getRuleAttributes().addAll(oldRuleAttributes);
          byte[] xmlBytes = KEWServiceLocator.getXmlExporterService().export(dataSet);
          assertTrue("XML should be non empty.", xmlBytes != null && xmlBytes.length > 0);
          
          // import the exported xml
          loadXmlStream(new BufferedInputStream(new ByteArrayInputStream(xmlBytes)));
          
          List newRuleAttributes = KEWServiceLocator.getRuleAttributeService().findAll();
          assertEquals("Should have same number of old and new RuleAttributes.", oldRuleAttributes.size(), newRuleAttributes.size());
          for (Iterator iterator = oldRuleAttributes.iterator(); iterator.hasNext();) {
              RuleAttribute oldRuleAttribute = (RuleAttribute) iterator.next();
              boolean foundAttribute = false;
              for (Iterator iterator2 = newRuleAttributes.iterator(); iterator2.hasNext();) {
                  RuleAttribute newRuleAttribute = (RuleAttribute) iterator2.next();
                  if (oldRuleAttribute.getName().equals(newRuleAttribute.getName())) {
                      assertRuleAttributeExport(oldRuleAttribute, newRuleAttribute);
                      foundAttribute = true;
                  }
              }
              assertTrue("Could not locate the new rule attribute for name " + oldRuleAttribute.getName(), foundAttribute);
          }
      }
      
      private void assertRuleAttributeExport(RuleAttribute oldRuleAttribute, RuleAttribute newRuleAttribute) {
          // ids should be the same because we don't version rule attributes, but thier version number should be different
          assertEquals("Ids should be the same.", oldRuleAttribute.getRuleAttributeId(), newRuleAttribute.getRuleAttributeId());
          assertFalse("Version numbers should be different.", oldRuleAttribute.getVersionNumber().equals(newRuleAttribute.getVersionNumber()));
          assertEquals(oldRuleAttribute.getDescription(), newRuleAttribute.getDescription());
          assertEquals(oldRuleAttribute.getName(), newRuleAttribute.getName());
          assertEquals(oldRuleAttribute.getLabel(), newRuleAttribute.getLabel());
          assertEquals(oldRuleAttribute.getType(), newRuleAttribute.getType());
          assertEquals(StringUtils.deleteWhitespace(oldRuleAttribute.getXmlConfigData()), StringUtils.deleteWhitespace(newRuleAttribute.getXmlConfigData()));
          assertRuleTemplateAttributes(oldRuleAttribute.getRuleTemplateAttributes(), newRuleAttribute.getRuleTemplateAttributes());
      }
      
      private void assertRuleTemplateAttributes(List oldRuleTemplateAttributes, List newRuleTemplateAttributes) {
          assertEquals(oldRuleTemplateAttributes.size(), newRuleTemplateAttributes.size());
          for (Iterator iterator = oldRuleTemplateAttributes.iterator(); iterator.hasNext();) {
              RuleTemplateAttribute oldAttribute = (RuleTemplateAttribute) iterator.next();
              boolean foundAttribute = false;
              for (Iterator iterator2 = oldRuleTemplateAttributes.iterator(); iterator2.hasNext();) {
                  RuleTemplateAttribute newAttribute = (RuleTemplateAttribute) iterator2.next();
                  if (oldAttribute.getRuleAttribute().getName().equals(newAttribute.getRuleAttribute().getName())) {
                      assertEquals(oldAttribute.getRequired(), newAttribute.getRequired());
                      foundAttribute = true;
                  }
              }
              assertTrue("Could not locate new attribute.", foundAttribute);
          }
      }
          
  }