/**

  * Copyright 2005-2011 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.kcb.deliverer.impl;

 import java.util.HashMap;

 import java.util.LinkedHashMap;

 import org.apache.commons.lang.StringUtils;

 import org.apache.log4j.Logger;

 import org.kuali.rice.kcb.bo.MessageDelivery;

 import org.kuali.rice.kcb.deliverer.MessageDeliverer;

 import org.kuali.rice.kcb.exception.ErrorList;

 import org.kuali.rice.kcb.api.exception.MessageDeliveryException;

 import org.kuali.rice.kcb.api.exception.MessageDismissalException;

 /**

  * This class is responsible for describing the AOL Instant Messenger delivery mechanism for

  * the system; however, it is not yet integrated into the system and is just a stub.

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

  */

 public class AOLInstantMessageDeliverer implements MessageDeliverer {

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

     private static final String SCREEN_NAME = "aim_screen_name";

     /**

      * Constructs a AOLInstantMessageDeliverer.java.

      */

     public AOLInstantMessageDeliverer() {

     }

     /**

      * @see org.kuali.rice.kcb.deliverer.MessageDeliverer#deliver(org.kuali.rice.kcb.bo.MessageDelivery)

      */

     public void deliver(MessageDelivery messageDelivery) throws MessageDeliveryException {

     }

     /**

      * @see org.kuali.rice.kcb.deliverer.MessageDeliverer#dismiss(org.kuali.rice.kcb.bo.MessageDelivery, java.lang.String, java.lang.String)

      */

     public void dismiss(MessageDelivery messageDelivery, String user, String cause) throws MessageDismissalException {

     }

     /**

      * @see org.kuali.rice.kcb.deliverer.MessageDeliverer#getDescription()

      */

     public String getDescription() {

         return "This is the default AOL Instant Messenger delivery type.";

     }

     /**

      * @see org.kuali.rice.kcb.deliverer.MessageDeliverer#getName()

      */

     public String getName() {

         return "AIM";

     }

     /**

      * @see org.kuali.rice.kcb.deliverer.MessageDeliverer#getTitle()

      */

     public String getTitle() {

         return "AOL Instant Messenger Delivery";

     }

     /**

      * This implementation returns a screen name field.

      * @see org.kuali.rice.kcb.deliverer.MessageDeliverer#getPreferenceKeys()

      */

     public LinkedHashMap getPreferenceKeys() {

         LinkedHashMap<String, String> prefKeys = new LinkedHashMap<String, String>();

         prefKeys.put(SCREEN_NAME, "AIM Screen Name");

         return prefKeys;

     }

     /**

      * @see org.kuali.rice.kcb.deliverer.MessageDeliverer#validatePreferenceValues(java.util.HashMap)

      */

     public void validatePreferenceValues(HashMap prefs) throws ErrorList {

         boolean error = false;

         ErrorList errorList = new ErrorList();

         if (!prefs.containsKey(getName()+"."+SCREEN_NAME)) {

             errorList.addError("AIM Screen Name is a required field.");

             error = true;

         } else {

             String screenName = (String) prefs.get(getName()+"."+SCREEN_NAME);

             if(StringUtils.isBlank(screenName)) {

                 errorList.addError("AIM Screen Name is a required.");

                 error = true;

             }

         }

         if (error) throw errorList;

     }

 }