/*

  * 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.docsearch.service.impl;

 import java.util.ArrayList;

 import java.util.Iterator;

 import java.util.List;

 import org.apache.log4j.Logger;

 import org.kuali.rice.kew.docsearch.DocSearchUtils;

 import org.kuali.rice.kew.docsearch.SearchableAttribute;

 import org.kuali.rice.kew.docsearch.SearchableAttributeValue;

 import org.kuali.rice.kew.docsearch.service.SearchableAttributeProcessingService;

 import org.kuali.rice.kew.doctype.bo.DocumentType;

 import org.kuali.rice.kew.exception.WorkflowRuntimeException;

 import org.kuali.rice.kew.routeheader.DocumentRouteHeaderValueContent;

 import org.kuali.rice.kew.service.KEWServiceLocator;

 /**

  * Implementation of {@link SearchableAttributeProcessingService}.

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class SearchableAttributeProcessor implements SearchableAttributeProcessingService {

         private static Logger LOG = Logger.getLogger(SearchableAttributeProcessor.class);

         public void indexDocument(String documentId) {

                 indexDocument(documentId, true);

         }

         public void indexDocument(String documentId, boolean useMostRecentDocType) {

                 long t1 = System.currentTimeMillis();                

                 LOG.info("Indexing document " + documentId + " for document search...");

                 try {

                         DocumentType documentType = KEWServiceLocator.getDocumentTypeService().findByDocumentId(documentId);

                         DocumentRouteHeaderValueContent docContent = KEWServiceLocator.getRouteHeaderService().getContent(documentId);

                         List<SearchableAttributeValue> attributes = buildSearchableAttributeValues(documentType, documentId, docContent.getDocumentContent(), useMostRecentDocType);

                         KEWServiceLocator.getRouteHeaderService().updateRouteHeaderSearchValues(documentId, attributes);

                 } catch (Exception e) {

                         String errorMsg = "Encountered an error when attempting to index searchable attributes, requeuing.";

                         LOG.error(errorMsg, e);

                         throw new WorkflowRuntimeException(errorMsg,e);

                 }

                 long t2 = System.currentTimeMillis();

                 LOG.info("...finished indexing document " + documentId + " for document search, total time = " + (t2-t1) + " ms.");

         }

         private List<SearchableAttributeValue> buildSearchableAttributeValues(DocumentType docType, String documentId, String docContent, boolean useMostRecentDocType) {

                 if (useMostRecentDocType) {

                         docType = KEWServiceLocator.getDocumentTypeService().findByName(docType.getName());

                 }

                 List<SearchableAttributeValue> searchableAttributeValues = new ArrayList<SearchableAttributeValue>();

                 for (Iterator iterator = docType.getSearchableAttributes().iterator(); iterator.hasNext();) {

                         SearchableAttribute searchableAttribute = (SearchableAttribute) iterator.next();

                         List searchStorageValues = searchableAttribute.getSearchStorageValues(

                                         DocSearchUtils.getDocumentSearchContext(documentId, docType.getName(), docContent));

                         if (searchStorageValues != null) {

                                 for (Iterator iterator2 = searchStorageValues.iterator(); iterator2.hasNext();) {

                                         SearchableAttributeValue searchableAttributeValue = (SearchableAttributeValue) iterator2.next();

                                         searchableAttributeValue.setDocumentId(documentId);

                                         searchableAttributeValues.add(searchableAttributeValue);

                                         searchableAttributeValue.setRouteHeader(null); // let the documentId we set represent this reference

                                 }

                         }

                 }

                 return searchableAttributeValues;

         }

 }