Coverage Report - com.allanbank.mongodb.client.callback.SingleDocumentCallback
 
Classes in this File Line Coverage Branch Coverage Complexity
SingleDocumentCallback
100%
6/6
100%
2/2
2
 
 1  
 /*
 2  
  * #%L
 3  
  * SingleDocumentCallback.java - mongodb-async-driver - Allanbank Consulting, Inc.
 4  
  * %%
 5  
  * Copyright (C) 2011 - 2014 Allanbank Consulting, Inc.
 6  
  * %%
 7  
  * Licensed under the Apache License, Version 2.0 (the "License");
 8  
  * you may not use this file except in compliance with the License.
 9  
  * You may obtain a copy of the License at
 10  
  * 
 11  
  *      http://www.apache.org/licenses/LICENSE-2.0
 12  
  * 
 13  
  * Unless required by applicable law or agreed to in writing, software
 14  
  * distributed under the License is distributed on an "AS IS" BASIS,
 15  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 16  
  * See the License for the specific language governing permissions and
 17  
  * limitations under the License.
 18  
  * #L%
 19  
  */
 20  
 
 21  
 package com.allanbank.mongodb.client.callback;
 22  
 
 23  
 import com.allanbank.mongodb.Callback;
 24  
 import com.allanbank.mongodb.MongoDbException;
 25  
 import com.allanbank.mongodb.bson.Document;
 26  
 import com.allanbank.mongodb.client.MongoIteratorImpl;
 27  
 import com.allanbank.mongodb.client.message.Reply;
 28  
 
 29  
 /**
 30  
  * Callback to convert a {@link Reply} into a single document.
 31  
  * 
 32  
  * @api.no This class is <b>NOT</b> part of the drivers API. This class may be
 33  
  *         mutated in incompatible ways between any two releases of the driver.
 34  
  * @copyright 2011-2013, Allanbank Consulting, Inc., All Rights Reserved
 35  
  */
 36  26
 public final class SingleDocumentCallback extends
 37  
         AbstractReplyCallback<Document> {
 38  
 
 39  
     /**
 40  
      * Create a new CursorCallback.
 41  
      * 
 42  
      * @param results
 43  
      *            The callback to update once the first set of results are
 44  
      *            ready.
 45  
      */
 46  
     public SingleDocumentCallback(final Callback<Document> results) {
 47  36
         super(results);
 48  36
     }
 49  
 
 50  
     /**
 51  
      * {@inheritDoc}
 52  
      * <p>
 53  
      * Overridden to construct a {@link MongoIteratorImpl} around the reply.
 54  
      * </p>
 55  
      * 
 56  
      * @see AbstractReplyCallback#convert(Reply)
 57  
      */
 58  
     @Override
 59  
     protected Document convert(final Reply reply) throws MongoDbException {
 60  26
         if (!reply.getResults().isEmpty()) {
 61  22
             return reply.getResults().get(0);
 62  
         }
 63  4
         return null;
 64  
     }
 65  
 }