| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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. |
| |
| using System.Collections; |
| using System.Collections.Generic; |
| using Org.Apache.REEF.IO.PartitionedData.Random.Parameters; |
| using Org.Apache.REEF.Tang.Annotations; |
| |
| namespace Org.Apache.REEF.IO.PartitionedData.Random |
| { |
| /// <summary> |
| /// An implementation of IPartitionedDataSet that produces a given number of partitions containing a given number of random |
| /// doubles. |
| /// </summary> |
| internal sealed class RandomInputDataSet : IPartitionedInputDataSet |
| { |
| private readonly Dictionary<string, IPartitionDescriptor> _partitions; |
| |
| [Inject] |
| private RandomInputDataSet([Parameter(typeof(NumberOfPartitions))] int numberOfPartitions, |
| [Parameter(typeof(NumberOfDoublesPerPartition))] int numberOfDoublesPerPartition) |
| { |
| _partitions = new Dictionary<string, IPartitionDescriptor>(numberOfPartitions); |
| for (var i = 0; i < numberOfPartitions; ++i) |
| { |
| var id = "RandomInputPartition-" + i; |
| _partitions[id] = new RandomInputPartitionDescriptor(id, numberOfDoublesPerPartition); |
| } |
| } |
| |
| public IEnumerator<IPartitionDescriptor> GetEnumerator() |
| { |
| return _partitions.Values.GetEnumerator(); |
| } |
| |
| IEnumerator IEnumerable.GetEnumerator() |
| { |
| return _partitions.Values.GetEnumerator(); |
| } |
| |
| public int Count |
| { |
| get { return _partitions.Count; } |
| } |
| |
| public string Id |
| { |
| get { return "RandomDataSet"; } |
| } |
| |
| public IPartitionDescriptor GetPartitionDescriptorForId(string partitionId) |
| { |
| return _partitions[partitionId]; |
| } |
| } |
| } |