/**

  * Copyright 2010 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.osedu.org/licenses/ECL-2.0

  *

  * 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.student.common.ui.server.gwt;

 import com.google.gwt.user.server.rpc.RemoteServiceServlet;

 import org.kuali.student.common.assembly.transform.IdTranslatorFilter;

 import org.kuali.student.common.exceptions.MissingParameterException;

 import org.kuali.student.common.search.dto.*;

 import org.kuali.student.common.search.service.SearchDispatcher;

 import org.kuali.student.common.ui.client.service.SearchRpcService;

 import java.util.List;

 import java.util.concurrent.ConcurrentHashMap;

 public class SearchDispatchRpcGwtServlet extends RemoteServiceServlet implements SearchRpcService {

     private static final long serialVersionUID = 1L;

     private IdTranslatorFilter idTranslatorFilter;

     private SearchDispatcher searchDispatcher;

     private ConcurrentHashMap<SearchRequest, SearchResult> cache = new ConcurrentHashMap<SearchRequest, SearchResult>();

     public SearchDispatchRpcGwtServlet() {

         super();

     }

     /**

      * Delegates to the service responsible for the given search type key

      *

      * @param searchRequest

      * @return The searchResult from the delegated search or null

      * @throws MissingParameterException

      */

     @Override

     public SearchResult search(SearchRequest searchRequest) {

         SearchResult searchResult = searchDispatcher.dispatchSearch(searchRequest);

         List<SearchParam> params  = searchRequest.getParams();

         if(params != null && params.size() > 0){

             SearchParam firstParam = params.get(0);

             if(firstParam.getKey().equals("lu.queryParam.cluVersionIndId")){

                 doIdTranslation(searchResult);

             }

         }

         return searchResult;

     }

     @Override

     public SearchResult cachingSearch(SearchRequest searchRequest) {

         if(cache.containsKey(searchRequest)){

             return cache.get(searchRequest);

         }

         SearchResult searchResult = search(searchRequest);

         cache.putIfAbsent(searchRequest, searchResult);

         return searchResult;

     }

     private void doIdTranslation(SearchResult searchResult) {

         for (SearchResultRow searchResultRow : searchResult.getRows()) {

             for (SearchResultCell searchResultCell : searchResultRow.getCells()) {

                 String value = searchResultCell.getValue();

                 if (value != null && value.startsWith("kuali.atp")) {

                     String newValue = idTranslatorFilter.getTranslationForAtp(value);

                     if (newValue != null) {

                         searchResultCell.setValue(newValue);

                     }

                 }

             }

         }

     }

     public void setSearchDispatcher(SearchDispatcher searchDispatcher) {

         this.searchDispatcher = searchDispatcher;

     }

     public void setIdTranslatorFilter(IdTranslatorFilter idTranslatorFilter) {

         this.idTranslatorFilter = idTranslatorFilter;

     }

 }