| /* |
| * 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.hadoop.fs.s3a.prefetch; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| import org.junit.Test; |
| |
| import org.apache.hadoop.fs.impl.prefetch.BlockData; |
| import org.apache.hadoop.fs.impl.prefetch.BufferData; |
| import org.apache.hadoop.test.AbstractHadoopTestBase; |
| |
| import static org.apache.hadoop.test.LambdaTestUtils.intercept; |
| import static org.junit.Assert.assertEquals; |
| |
| public class TestS3ABlockManager extends AbstractHadoopTestBase { |
| |
| static final int FILE_SIZE = 12; |
| |
| static final int BLOCK_SIZE = 3; |
| |
| @Test |
| public void testArgChecks() throws Exception { |
| BlockData blockData = new BlockData(FILE_SIZE, BLOCK_SIZE); |
| MockS3ARemoteObject s3File = new MockS3ARemoteObject(FILE_SIZE, false); |
| S3ARemoteObjectReader reader = new S3ARemoteObjectReader(s3File); |
| |
| // Should not throw. |
| new S3ABlockManager(reader, blockData); |
| |
| // Verify it throws correctly. |
| intercept( |
| IllegalArgumentException.class, |
| "'reader' must not be null", |
| () -> new S3ABlockManager(null, blockData)); |
| |
| intercept( |
| IllegalArgumentException.class, |
| "'blockData' must not be null", |
| () -> new S3ABlockManager(reader, null)); |
| |
| intercept( |
| IllegalArgumentException.class, |
| "'blockNumber' must not be negative", |
| () -> new S3ABlockManager(reader, blockData).get(-1)); |
| |
| intercept( |
| IllegalArgumentException.class, |
| "'data' must not be null", |
| () -> new S3ABlockManager(reader, blockData).release(null)); |
| } |
| |
| @Test |
| public void testGet() throws IOException { |
| BlockData blockData = new BlockData(FILE_SIZE, BLOCK_SIZE); |
| MockS3ARemoteObject s3File = new MockS3ARemoteObject(FILE_SIZE, false); |
| S3ARemoteObjectReader reader = new S3ARemoteObjectReader(s3File); |
| S3ABlockManager blockManager = new S3ABlockManager(reader, blockData); |
| |
| for (int b = 0; b < blockData.getNumBlocks(); b++) { |
| BufferData data = blockManager.get(b); |
| ByteBuffer buffer = data.getBuffer(); |
| long startOffset = blockData.getStartOffset(b); |
| for (int i = 0; i < BLOCK_SIZE; i++) { |
| assertEquals(startOffset + i, buffer.get()); |
| } |
| } |
| } |
| } |