| /** |
| * 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.avro; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.security.MessageDigest; |
| import java.security.NoSuchAlgorithmException; |
| import java.util.Arrays; |
| import java.util.UUID; |
| import org.apache.avro.Schema.Type; |
| import org.apache.avro.file.DataFileConstants; |
| import org.apache.avro.file.DataFileReader; |
| import org.apache.avro.file.DataFileWriter; |
| import org.apache.avro.generic.GenericDatumReader; |
| import org.apache.avro.generic.GenericDatumWriter; |
| import org.apache.avro.util.Utf8; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| public class TestDataFileCustomSync { |
| private byte[] createDataFile(byte[] sync) throws IOException { |
| Schema schema = Schema.create(Type.STRING); |
| DataFileWriter<Utf8> w = new DataFileWriter<Utf8>(new GenericDatumWriter<Utf8>(schema)); |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| w.create(schema, baos, sync); |
| w.append(new Utf8("apple")); |
| w.append(new Utf8("banana")); |
| w.sync(); |
| w.append(new Utf8("celery")); |
| w.append(new Utf8("date")); |
| w.sync(); |
| w.append(new Utf8("endive")); |
| w.append(new Utf8("fig")); |
| w.close(); |
| return baos.toByteArray(); |
| } |
| |
| private static byte[] generateSync() { |
| try { |
| MessageDigest digester = MessageDigest.getInstance("MD5"); |
| long time = System.currentTimeMillis(); |
| digester.update((UUID.randomUUID()+"@"+time).getBytes()); |
| return digester.digest(); |
| } catch (NoSuchAlgorithmException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @Test(expected = IOException.class) |
| public void testInvalidSync() throws IOException { |
| // Invalid size (must be 16): |
| byte[] sync = new byte[8]; |
| createDataFile(sync); |
| } |
| |
| @Test |
| public void testRandomSync() throws IOException { |
| byte[] sync = generateSync(); |
| byte[] randSyncFile = createDataFile(null); |
| byte[] customSyncFile = createDataFile(sync); |
| assertFalse(Arrays.equals(randSyncFile, customSyncFile)); |
| } |
| |
| @Test |
| public void testCustomSync() throws IOException { |
| byte[] sync = generateSync(); |
| byte[] customSyncFile = createDataFile(sync); |
| byte[] sameCustomSyncFile = createDataFile(sync); |
| assertTrue(Arrays.equals(customSyncFile, sameCustomSyncFile)); |
| } |
| } |