Coverage Report - com.jcabi.simpledb.AwsIterator
 
Classes in this File Line Coverage Branch Coverage Complexity
AwsIterator
0%
0/17
0%
0/26
2.5
AwsIterator$AjcClosure1
0%
0/1
N/A
2.5
AwsIterator$AjcClosure3
0%
0/1
N/A
2.5
AwsIterator$AjcClosure5
0%
0/1
N/A
2.5
 
 1  0
 /**
 2  
  * Copyright (c) 2012-2014, jcabi.com
 3  
  * All rights reserved.
 4  
  *
 5  
  * Redistribution and use in source and binary forms, with or without
 6  
  * modification, are permitted provided that the following conditions
 7  
  * are met: 1) Redistributions of source code must retain the above
 8  
  * copyright notice, this list of conditions and the following
 9  
  * disclaimer. 2) Redistributions in binary form must reproduce the above
 10  
  * copyright notice, this list of conditions and the following
 11  
  * disclaimer in the documentation and/or other materials provided
 12  
  * with the distribution. 3) Neither the name of the jcabi.com nor
 13  
  * the names of its contributors may be used to endorse or promote
 14  
  * products derived from this software without specific prior written
 15  
  * permission.
 16  
  *
 17  
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 18  
  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
 19  
  * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 20  
  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 21  
  * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 22  
  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 23  
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 24  
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 25  
  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 26  
  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 27  
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 28  
  * OF THE POSSIBILITY OF SUCH DAMAGE.
 29  
  */
 30  
 package com.jcabi.simpledb;
 31  
 
 32  
 import com.amazonaws.services.simpledb.model.SelectRequest;
 33  
 import com.amazonaws.services.simpledb.model.SelectResult;
 34  
 import com.jcabi.aspects.Loggable;
 35  
 import java.util.Iterator;
 36  
 import java.util.NoSuchElementException;
 37  
 import lombok.EqualsAndHashCode;
 38  
 
 39  
 /**
 40  
  * Iterator of items in SimpleDB.
 41  
  *
 42  
  * @author Yegor Bugayenko (yegor@tpc2.com)
 43  
  * @version $Id$
 44  
  * @since 0.1
 45  
  */
 46  0
 @Loggable(Loggable.DEBUG)
 47  0
 @EqualsAndHashCode(of = { "credentials", "table" })
 48  
 final class AwsIterator implements Iterator<Item> {
 49  
 
 50  
     /**
 51  
      * AWS credentials.
 52  
      */
 53  
     private final transient Credentials credentials;
 54  
 
 55  
     /**
 56  
      * Domain name.
 57  
      */
 58  
     private final transient String table;
 59  
 
 60  
     /**
 61  
      * Select request.
 62  
      */
 63  
     private final transient SelectRequest request;
 64  
 
 65  
     /**
 66  
      * Most recent result.
 67  
      */
 68  
     private transient SelectResult result;
 69  
 
 70  
     /**
 71  
      * Public ctor.
 72  
      * @param creds Credentials
 73  
      * @param name Domain name
 74  
      * @param req Request
 75  
      */
 76  
     protected AwsIterator(final Credentials creds, final String name,
 77  0
         final SelectRequest req) {
 78  0
         this.credentials = creds;
 79  0
         this.table = name;
 80  0
         this.request = req;
 81  0
     }
 82  
 
 83  
     /**
 84  
      * {@inheritDoc}
 85  
      */
 86  
     @Override
 87  
     public boolean hasNext() {
 88  0
         if (this.result == null) {
 89  0
             this.result = this.credentials.aws().select(this.request);
 90  0
         } else if (this.result.getItems().isEmpty()
 91  
             && this.result.getNextToken() != null) {
 92  0
             this.result = this.credentials.aws().select(
 93  
                 this.request.withNextToken(this.result.getNextToken())
 94  
             );
 95  
         }
 96  0
         return !this.result.getItems().isEmpty();
 97  
     }
 98  
 
 99  
     /**
 100  
      * {@inheritDoc}
 101  
      */
 102  
     @Override
 103  
     public Item next() {
 104  0
         if (!this.hasNext()) {
 105  0
             throw new NoSuchElementException();
 106  
         }
 107  0
         return new AwsItem(
 108  
             this.credentials,
 109  
             this.table,
 110  
             this.result.getItems().remove(0)
 111  
         );
 112  
     }
 113  
 
 114  
     /**
 115  
      * {@inheritDoc}
 116  
      */
 117  
     @Override
 118  
     public void remove() {
 119  0
         throw new UnsupportedOperationException();
 120  
     }
 121  
 
 122  
 }