| // 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; |
| using System.Threading; |
| using System.Threading.Tasks; |
| using Org.Apache.REEF.Tang.Annotations; |
| using Org.Apache.REEF.Wake.Remote; |
| |
| namespace Org.Apache.REEF.Wake.StreamingCodec.CommonStreamingCodecs |
| { |
| /// <summary> |
| /// Streaming codec for integer array |
| /// </summary> |
| public sealed class IntArrayStreamingCodec : IStreamingCodec<int[]> |
| { |
| /// <summary> |
| /// Injectable constructor |
| /// </summary> |
| [Inject] |
| private IntArrayStreamingCodec() |
| { |
| } |
| |
| /// <summary> |
| /// Instantiate the class from the reader. |
| /// </summary> |
| /// <param name="reader">The reader from which to read</param> |
| /// <returns>The integer array read from the reader</returns> |
| public int[] Read(IDataReader reader) |
| { |
| int length = reader.ReadInt32(); |
| byte[] buffer = new byte[sizeof(int) * length]; |
| reader.Read(ref buffer, 0, buffer.Length); |
| int[] intArr = new int[length]; |
| Buffer.BlockCopy(buffer, 0, intArr, 0, buffer.Length); |
| return intArr; |
| } |
| |
| /// <summary> |
| /// Writes the integer array to the writer. |
| /// </summary> |
| /// <param name="obj">The integer array to be encoded</param> |
| /// <param name="writer">The writer to which to write</param> |
| public void Write(int[] obj, IDataWriter writer) |
| { |
| if (obj == null) |
| { |
| throw new ArgumentNullException("obj", "integer array is null"); |
| } |
| |
| writer.WriteInt32(obj.Length); |
| byte[] buffer = new byte[sizeof(int) * obj.Length]; |
| Buffer.BlockCopy(obj, 0, buffer, 0, buffer.Length); |
| writer.Write(buffer, 0, buffer.Length); |
| } |
| |
| /// <summary> |
| /// Instantiate the class from the reader. |
| /// </summary> |
| /// <param name="reader">The reader from which to read</param> |
| /// <param name="token">Cancellation token</param> |
| /// <returns>The integer array read from the reader</returns> |
| public async Task<int[]> ReadAsync(IDataReader reader, CancellationToken token) |
| { |
| int length = await reader.ReadInt32Async(token); |
| byte[] buffer = new byte[sizeof(int) * length]; |
| await reader.ReadAsync(buffer, 0, buffer.Length, token); |
| int[] intArr = new int[length]; |
| Buffer.BlockCopy(buffer, 0, intArr, 0, sizeof(int) * length); |
| return intArr; |
| } |
| |
| /// <summary> |
| /// Writes the integer array to the writer. |
| /// </summary> |
| /// <param name="obj">The integer array to be encoded</param> |
| /// <param name="writer">The writer to which to write</param> |
| /// <param name="token">Cancellation token</param> |
| public async Task WriteAsync(int[] obj, IDataWriter writer, CancellationToken token) |
| { |
| if (obj == null) |
| { |
| throw new ArgumentNullException("obj", "integer array is null"); |
| } |
| |
| await writer.WriteInt32Async(obj.Length, token); |
| byte[] buffer = new byte[sizeof(int) * obj.Length]; |
| Buffer.BlockCopy(obj, 0, buffer, 0, sizeof(int) * obj.Length); |
| await writer.WriteAsync(buffer, 0, buffer.Length, token); |
| } |
| } |
| } |