| /* |
| * 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 NUnit.Framework; |
| |
| using LuceneTestCase = Lucene.Net.Util.LuceneTestCase; |
| |
| using ByteBlockPool = Lucene.Net.Index.ByteBlockPool; |
| |
| namespace Lucene.Net.Index |
| { |
| |
| [TestFixture] |
| public class TestByteSlices:LuceneTestCase |
| { |
| |
| private class ByteBlockAllocator : ByteBlockPool.Allocator |
| { |
| internal System.Collections.ArrayList freeByteBlocks = new System.Collections.ArrayList(); |
| |
| /* Allocate another byte[] from the shared pool */ |
| public /*internal*/ override byte[] GetByteBlock(bool trackAllocations) |
| { |
| lock (this) |
| { |
| int size = freeByteBlocks.Count; |
| byte[] b; |
| if (0 == size) |
| b = new byte[DocumentsWriter.BYTE_BLOCK_SIZE_ForNUnit]; |
| else |
| { |
| System.Object tempObject; |
| tempObject = freeByteBlocks[size - 1]; |
| freeByteBlocks.RemoveAt(size - 1); |
| b = (byte[])tempObject; |
| } |
| return b; |
| } |
| } |
| |
| /* Return a byte[] to the pool */ |
| public /*internal*/ override void RecycleByteBlocks(byte[][] blocks, int start, int end) |
| { |
| lock (this) |
| { |
| for (int i = start; i < end; i++) |
| freeByteBlocks.Add(blocks[i]); |
| } |
| } |
| |
| public override void RecycleByteBlocks(System.Collections.Generic.IList<byte[]> blocks) |
| { |
| lock (this) |
| { |
| int size = blocks.Count; |
| for (int i = 0; i < size; i++) |
| freeByteBlocks.Add(blocks[i]); |
| } |
| } |
| } |
| |
| [Test] |
| public virtual void TestBasic() |
| { |
| ByteBlockPool pool = new ByteBlockPool(new ByteBlockAllocator(), false); |
| |
| int NUM_STREAM = 25; |
| |
| ByteSliceWriter writer = new ByteSliceWriter(pool); |
| |
| int[] starts = new int[NUM_STREAM]; |
| int[] uptos = new int[NUM_STREAM]; |
| int[] counters = new int[NUM_STREAM]; |
| |
| System.Random r = NewRandom(); |
| |
| ByteSliceReader reader = new ByteSliceReader(); |
| |
| for (int ti = 0; ti < 100; ti++) |
| { |
| |
| for (int stream = 0; stream < NUM_STREAM; stream++) |
| { |
| starts[stream] = - 1; |
| counters[stream] = 0; |
| } |
| |
| bool debug = false; |
| |
| for (int iter = 0; iter < 10000; iter++) |
| { |
| int stream = r.Next(NUM_STREAM); |
| if (debug) |
| System.Console.Out.WriteLine("write stream=" + stream); |
| |
| if (starts[stream] == - 1) |
| { |
| int spot = pool.NewSlice(ByteBlockPool.FIRST_LEVEL_SIZE_ForNUnit); |
| starts[stream] = uptos[stream] = spot + pool.byteOffset; |
| if (debug) |
| System.Console.Out.WriteLine(" init to " + starts[stream]); |
| } |
| |
| writer.Init(uptos[stream]); |
| int numValue = r.Next(20); |
| for (int j = 0; j < numValue; j++) |
| { |
| if (debug) |
| System.Console.Out.WriteLine(" write " + (counters[stream] + j)); |
| writer.WriteVInt(counters[stream] + j); |
| //writer.writeVInt(ti); |
| } |
| counters[stream] += numValue; |
| uptos[stream] = writer.Address; |
| if (debug) |
| System.Console.Out.WriteLine(" addr now " + uptos[stream]); |
| } |
| |
| for (int stream = 0; stream < NUM_STREAM; stream++) |
| { |
| if (debug) |
| System.Console.Out.WriteLine(" stream=" + stream + " count=" + counters[stream]); |
| |
| if (starts[stream] != uptos[stream]) |
| { |
| reader.Init(pool, starts[stream], uptos[stream]); |
| for (int j = 0; j < counters[stream]; j++) |
| Assert.AreEqual(j, reader.ReadVInt()); |
| //Assert.AreEqual(ti, reader.readVInt()); |
| } |
| } |
| |
| pool.Reset(); |
| } |
| } |
| } |
| } |