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1   /**
2    * Copyright (c) 2002-2011 "Neo Technology,"
3    * Network Engine for Objects in Lund AB [http://neotechnology.com]
4    *
5    * This file is part of Neo4j.
6    *
7    * Neo4j is free software: you can redistribute it and/or modify
8    * it under the terms of the GNU General Public License as published by
9    * the Free Software Foundation, either version 3 of the License, or
10   * (at your option) any later version.
11   *
12   * This program is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   * GNU General Public License for more details.
16   *
17   * You should have received a copy of the GNU General Public License
18   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
19   */
20  package org.neo4j.server.webadmin.rest.representations;
21  
22  import org.neo4j.server.rest.repr.ListRepresentation;
23  import org.neo4j.server.rest.repr.MappingRepresentation;
24  import org.neo4j.server.rest.repr.MappingSerializer;
25  import org.neo4j.server.rest.repr.ObjectRepresentation;
26  import org.neo4j.server.rest.repr.ValueRepresentation;
27  import org.rrd4j.core.FetchData;
28  
29  public class RrdDataRepresentation extends ObjectRepresentation
30  {
31      private final FetchData rrdData;
32  
33      public RrdDataRepresentation( FetchData rrdData )
34      {
35          super( "rrd-data" );
36          this.rrdData = rrdData;
37      }
38  
39      @Mapping( "start_time" )
40      public ValueRepresentation getStartTime()
41      {
42          return ValueRepresentation.number( rrdData.getFirstTimestamp() );
43      }
44  
45      @Mapping( "end_time" )
46      public ValueRepresentation getEndTime()
47      {
48          return ValueRepresentation.number( rrdData.getLastTimestamp() );
49      }
50  
51      @Mapping( "timestamps" )
52      public ListRepresentation getTimestamps()
53      {
54          return ListRepresentation.numbers( rrdData.getTimestamps() );
55      }
56  
57      @Mapping( "data" )
58      public MappingRepresentation getDatasources()
59      {
60          return new MappingRepresentation( "datasources" )
61          {
62              @Override
63              protected void serialize( MappingSerializer serializer )
64              {
65                  String[] dsNames = rrdData.getDsNames();
66                  for ( int i = 0, l = dsNames.length; i < l; i++ )
67                  {
68                      serializer.putList( dsNames[i],
69                              ListRepresentation.numbers( rrdData.getValues( i ) ) );
70                  }
71              }
72          };
73      }
74  }
75