/**

  * 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.messages;

 import java.lang.reflect.Method;

 import java.util.Arrays;

 import java.util.HashMap;

 import java.util.Map;

 import org.apache.log4j.Logger;

 import org.kuali.rice.core.resourceloader.GlobalResourceLoader;

 import org.kuali.student.common.messages.dto.Message;

 import org.kuali.student.common.messages.dto.MessageGroupKeyList;

 import org.kuali.student.common.messages.dto.MessageList;

 import org.kuali.student.common.messages.service.MessageService;

 import org.kuali.student.common.ui.server.gwt.MessagesRpcGwtServlet;

 import org.kuali.student.common.ui.server.serialization.KSSerializationPolicy;

 import org.kuali.student.common.ui.server.serialization.SerializationUtils;

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

 public class MessageRPCPreloader {

         final Logger LOG = Logger.getLogger(MessageRPCPreloader.class);

     private final String MESSAGE_SERVICE_MOCK = "ks.messageServiceMock";

         private final String MESSAGE_SERVICE = "{http://student.kuali.org/wsdl/messages}MessageService";

     MessageService messageService;

     public MessageRPCPreloader(){

     }

     public MessageService getMessageService() {

         if (messageService == null){

             setMessageService((MessageService)GlobalResourceLoader.getService(MESSAGE_SERVICE_MOCK));

             if (messageService == null){

                 setMessageService((MessageService)GlobalResourceLoader.getService(MESSAGE_SERVICE));

             }

         }

         return messageService;

     }

     public void setMessageService(MessageService serviceImpl) {

         this.messageService = serviceImpl;

     }

     public String getMessagesByGroupsEncodingString(String locale, String[] keys){

         Method serviceMethod;

         try {

             serviceMethod = MessagesRpcGwtServlet.class.getMethod("getMessagesByGroups", String.class,MessageGroupKeyList.class);

             MessageGroupKeyList messageGroupKeyList = new MessageGroupKeyList();

             messageGroupKeyList.setMessageGroupKeys(Arrays.asList(keys));

             MessageList messageList = getMessageService().getMessagesByGroups(locale,messageGroupKeyList);

             Map<Class<?>, Boolean> whitelist = new HashMap<Class<?>, Boolean>();

             whitelist.put(MessageService.class, true);

             whitelist.put(MessageList.class, true);

             whitelist.put(MessageGroupKeyList.class,true);

             whitelist.put(Message.class,true);

             whitelist.put(MessageGroupKeyList.class,true);

             KSSerializationPolicy myPolicy = new KSSerializationPolicy(whitelist);

             //String serializedData = RPC.encodeResponseForSuccess(serviceMethod, messageList,KSSerializationPolicy.getInstance());

             String serializedData = RPC.encodeResponseForSuccess(serviceMethod, messageList,myPolicy);

             return SerializationUtils.escapeForSingleQuotedJavaScriptString(serializedData);

         } catch (Exception e) {

             LOG.error(e);

             return "";

         }

     }

 }