/*

  * #%L

  * LongToIntCallback.java - mongodb-async-driver - Allanbank Consulting, Inc.

  * %%

  * Copyright (C) 2011 - 2014 Allanbank Consulting, Inc.

  * %%

  * Licensed under the Apache 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.apache.org/licenses/LICENSE-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.

  * #L%

  */

 package com.allanbank.mongodb.client.callback;

 import com.allanbank.mongodb.Callback;

 /**

  * LongToIntCallback provides a simple callback wrapper to convert the long

  * value to an integer.

  * 

  * @api.no This class is <b>NOT</b> part of the drivers API. This class may be

  *         mutated in incompatible ways between any two releases of the driver.

  * @copyright 2012-2013, Allanbank Consulting, Inc., All Rights Reserved

  */

 public class LongToIntCallback implements Callback<Long> {

     /** The delegate callback to forward the integer result to. */

     private final Callback<Integer> myDelegate;

     /**

      * Creates a new LongToIntCallback.

      * 

      * @param delegate

      *            The delegate callback to forward the integer result to.

      */

     public LongToIntCallback(final Callback<Integer> delegate) {

         myDelegate = delegate;

     }

     /**

      * {@inheritDoc}

      * <p>

      * Overridden to cast the Long to an integer and foward to the delegate

      * callback.

      * </p>

      */

     @Override

     public void callback(final Long result) {

         myDelegate.callback(Integer.valueOf(result.intValue()));

     }

     /**

      * {@inheritDoc}

      * <p>

      * Overridden to forward the exception to the delegate callback.

      * </p>

      */

     @Override

     public void exception(final Throwable thrown) {

         myDelegate.exception(thrown);

     }

 }