| /* |
| * 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. |
| */ |
| |
| package org.apache.cassandra.net; |
| |
| import java.nio.ByteBuffer; |
| import java.util.Arrays; |
| import java.util.Random; |
| |
| import org.junit.Test; |
| |
| import io.netty.buffer.ByteBuf; |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| |
| public class BufferPoolAllocatorTest |
| { |
| @Test |
| public void testAdoptedBufferContentAfterResize() { |
| DatabaseDescriptor.clientInitialization(); |
| ByteBuf buffer = GlobalBufferPoolAllocator.instance.buffer(200, 500); |
| assertEquals(200, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| |
| byte[] content = new byte[300]; |
| |
| Random rand = new Random(); |
| rand.nextBytes(content); |
| |
| buffer.writeBytes(Arrays.copyOfRange(content, 0, 200)); |
| assertEquals(200, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| |
| buffer.writeBytes(Arrays.copyOfRange(content, 200, 300)); |
| |
| byte[] bufferContent = new byte[300]; |
| |
| BufferPoolAllocator.Wrapped wrapped = (BufferPoolAllocator.Wrapped) buffer; |
| ByteBuffer adopted = wrapped.adopt(); |
| adopted.get(bufferContent); |
| assertArrayEquals(content, bufferContent); |
| assertEquals(500, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| |
| GlobalBufferPoolAllocator.instance.put(adopted); |
| assertEquals(0, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| } |
| |
| @Test |
| public void testAdoptedBufferContentBeforeResize() { |
| DatabaseDescriptor.clientInitialization(); |
| ByteBuf buffer = GlobalBufferPoolAllocator.instance.buffer(200, 300); |
| assertEquals(200, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| |
| byte[] content = new byte[200]; |
| |
| Random rand = new Random(); |
| rand.nextBytes(content); |
| |
| buffer.writeBytes(content); |
| assertEquals(200, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| |
| byte[] bufferContent = new byte[200]; |
| |
| BufferPoolAllocator.Wrapped wrapped = (BufferPoolAllocator.Wrapped) buffer; |
| ByteBuffer adopted = wrapped.adopt(); |
| adopted.get(bufferContent); |
| assertArrayEquals(content, bufferContent); |
| |
| GlobalBufferPoolAllocator.instance.put(adopted); |
| assertEquals(0, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| } |
| |
| @Test |
| public void testPutPooledBufferBackIntoPool() { |
| DatabaseDescriptor.clientInitialization(); |
| ByteBuf buffer = GlobalBufferPoolAllocator.instance.buffer(200, 500); |
| assertEquals(200, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| buffer.writeBytes(new byte[200]); |
| |
| buffer.release(); |
| assertEquals(0, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| } |
| |
| @Test |
| public void testPutResizedBufferBackIntoPool() { |
| DatabaseDescriptor.clientInitialization(); |
| ByteBuf buffer = GlobalBufferPoolAllocator.instance.buffer(200, 500); |
| assertEquals(200, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| buffer.writeBytes(new byte[500]); |
| |
| buffer.release(); |
| assertEquals(0, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| } |
| |
| @Test |
| public void testBufferDefaultMaxCapacity() |
| { |
| DatabaseDescriptor.clientInitialization(); |
| ByteBuf noMaxCapacity = GlobalBufferPoolAllocator.instance.buffer(100); |
| noMaxCapacity.writeBytes(new byte[100]); |
| assertEquals(100, noMaxCapacity.readableBytes()); |
| noMaxCapacity.release(); |
| assertEquals(0, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| } |
| |
| @Test |
| public void testBufferWithMaxCapacity() |
| { |
| DatabaseDescriptor.clientInitialization(); |
| ByteBuf buffer = GlobalBufferPoolAllocator.instance.buffer(100, 500); |
| buffer.writeBytes(new byte[500]); |
| assertEquals(500, buffer.readableBytes()); |
| assertEquals(500, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| buffer.release(); |
| assertEquals(0, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| } |
| |
| @Test |
| public void testBufferContentAfterResize() |
| { |
| DatabaseDescriptor.clientInitialization(); |
| ByteBuf buffer = GlobalBufferPoolAllocator.instance.buffer(200, 300); |
| assertEquals(200, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| |
| byte[] content = new byte[300]; |
| |
| Random rand = new Random(); |
| rand.nextBytes(content); |
| |
| buffer.writeBytes(Arrays.copyOfRange(content, 0, 200)); |
| assertEquals(200, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| |
| buffer.writeBytes(Arrays.copyOfRange(content, 200, 300)); |
| |
| byte[] bufferContent = new byte[300]; |
| buffer.readBytes(bufferContent); |
| assertArrayEquals(content, bufferContent); |
| assertEquals(300, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| buffer.release(); |
| assertEquals(0, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| } |
| |
| @Test(expected = IndexOutOfBoundsException.class) |
| public void testBufferExceedMaxCapacity() |
| { |
| DatabaseDescriptor.clientInitialization(); |
| ByteBuf maxCapacity = GlobalBufferPoolAllocator.instance.buffer(100, 200); |
| try |
| { |
| maxCapacity.writeBytes(new byte[300]); |
| } finally { |
| maxCapacity.release(); |
| assertEquals(0, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| } |
| } |
| |
| @Test |
| public void testResizeBufferMultipleTimes() |
| { |
| DatabaseDescriptor.clientInitialization(); |
| ByteBuf buffer = GlobalBufferPoolAllocator.instance.buffer(100, 2000); |
| buffer.writeBytes(new byte[200]); |
| assertEquals(200, buffer.readableBytes()); |
| assertEquals(256, buffer.capacity()); |
| assertEquals(256, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| |
| buffer.writeBytes(new byte[100]); |
| assertEquals(300, buffer.readableBytes()); |
| assertEquals(512, buffer.capacity()); |
| assertEquals(512, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| |
| buffer.writeBytes(new byte[300]); |
| assertEquals(600, buffer.readableBytes()); |
| assertEquals(1024, buffer.capacity()); |
| assertEquals(1024, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| |
| buffer.release(); |
| assertEquals(0, GlobalBufferPoolAllocator.instance.usedSizeInBytes()); |
| } |
| |
| } |