| /* |
| * 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.ignite.raft.jraft.storage.io; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.nio.ByteBuffer; |
| import java.nio.file.Files; |
| import org.apache.ignite.raft.jraft.storage.BaseStorageTest; |
| import org.apache.ignite.raft.jraft.util.ByteBufferCollector; |
| import org.junit.jupiter.api.BeforeEach; |
| import org.junit.jupiter.api.Test; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.fail; |
| |
| public class LocalFileReaderTest extends BaseStorageTest { |
| private LocalDirReader fileReader; |
| |
| @BeforeEach |
| public void setup() throws Exception { |
| this.fileReader = new LocalDirReader(path.toString()); |
| } |
| |
| @Test |
| public void testReadFile() throws Exception { |
| final ByteBufferCollector bufRef = ByteBufferCollector.allocate(); |
| try { |
| this.fileReader.readFile(bufRef, "unfound", 0, 1024); |
| fail(); |
| } |
| catch (final FileNotFoundException e) { |
| // Ignored. |
| } |
| |
| final String data = writeData(); |
| |
| assertReadResult(bufRef, data); |
| } |
| |
| private void assertReadResult(ByteBufferCollector bufRef, String data) throws Exception { |
| final int read = this.fileReader.readFile(bufRef, "data", 0, 1024); |
| assertEquals(-1, read); |
| final ByteBuffer buf = bufRef.getBuffer(); |
| buf.flip(); |
| assertEquals(data.length(), buf.remaining()); |
| final byte[] bs = new byte[data.length()]; |
| buf.get(bs); |
| assertEquals(data, new String(bs)); |
| } |
| |
| @Test |
| public void testReadSmallInitBuffer() throws Exception { |
| final ByteBufferCollector bufRef = ByteBufferCollector.allocate(2); |
| |
| final String data = writeData(); |
| |
| assertReadResult(bufRef, data); |
| } |
| |
| @Test |
| public void testReadBigFile() throws Exception { |
| final ByteBufferCollector bufRef = ByteBufferCollector.allocate(2); |
| |
| final File file = new File(this.path + File.separator + "data"); |
| String data = ""; |
| for (int i = 0; i < 4096; i++) { |
| data += i % 10; |
| } |
| Files.writeString(file.toPath(), data); |
| |
| int read = this.fileReader.readFile(bufRef, "data", 0, 1024); |
| assertEquals(1024, read); |
| read = this.fileReader.readFile(bufRef, "data", 1024, 1024); |
| assertEquals(1024, read); |
| read = this.fileReader.readFile(bufRef, "data", 1024 + 1024, 1024); |
| assertEquals(1024, read); |
| read = this.fileReader.readFile(bufRef, "data", 1024 + 1024 + 1024, 1024); |
| assertEquals(-1, read); |
| |
| final ByteBuffer buf = bufRef.getBuffer(); |
| buf.flip(); |
| assertEquals(data.length(), buf.remaining()); |
| final byte[] bs = new byte[data.length()]; |
| buf.get(bs); |
| assertEquals(data, new String(bs)); |
| |
| } |
| } |