| /** |
| * 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 com.twitter.distributedlog; |
| |
| import com.twitter.distributedlog.LogSegmentMetadata.LogSegmentMetadataBuilder; |
| import com.twitter.distributedlog.LogSegmentMetadata.LogSegmentMetadataVersion; |
| import com.twitter.distributedlog.LogSegmentMetadata.TruncationStatus; |
| import com.twitter.distributedlog.exceptions.UnsupportedMetadataVersionException; |
| |
| import com.twitter.distributedlog.util.FutureUtils; |
| import org.apache.bookkeeper.client.BKException; |
| import org.apache.bookkeeper.proto.BookkeeperInternalCallbacks; |
| import org.apache.zookeeper.KeeperException; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import static com.google.common.base.Charsets.UTF_8; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| /** |
| * Test {@link LogSegmentMetadata} |
| */ |
| public class TestLogSegmentMetadata extends ZooKeeperClusterTestCase { |
| |
| static final Logger LOG = LoggerFactory.getLogger(TestLogSegmentMetadata.class); |
| |
| static final int TEST_REGION_ID = 0xf - 1; |
| |
| private ZooKeeperClient zkc; |
| |
| @Before |
| public void setup() throws Exception { |
| zkc = ZooKeeperClientBuilder.newBuilder().zkAclId(null).zkServers(zkServers).sessionTimeoutMs(10000).build(); |
| } |
| |
| @After |
| public void teardown() throws Exception { |
| zkc.close(); |
| } |
| |
| @Test(timeout = 60000) |
| public void testReadMetadata() throws Exception { |
| LogSegmentMetadata metadata1 = new LogSegmentMetadataBuilder("/metadata1", |
| LogSegmentMetadata.LEDGER_METADATA_CURRENT_LAYOUT_VERSION, 1000, 1).setRegionId(TEST_REGION_ID).build(); |
| metadata1.write(zkc); |
| LogSegmentMetadata read1 = FutureUtils.result(LogSegmentMetadata.read(zkc, "/metadata1")); |
| assertEquals(metadata1, read1); |
| assertEquals(TEST_REGION_ID, read1.getRegionId()); |
| } |
| |
| @Test(timeout = 60000) |
| public void testReadMetadataCrossVersion() throws Exception { |
| LogSegmentMetadata metadata1 = new LogSegmentMetadataBuilder("/metadata2", |
| 1, 1000, 1).setRegionId(TEST_REGION_ID).build(); |
| metadata1.write(zkc); |
| // synchronous read |
| LogSegmentMetadata read1 = FutureUtils.result(LogSegmentMetadata.read(zkc, "/metadata2", true)); |
| assertEquals(read1.getLedgerId(), metadata1.getLedgerId()); |
| assertEquals(read1.getFirstTxId(), metadata1.getFirstTxId()); |
| assertEquals(read1.getLastTxId(), metadata1.getLastTxId()); |
| assertEquals(read1.getLogSegmentSequenceNumber(), metadata1.getLogSegmentSequenceNumber()); |
| assertEquals(DistributedLogConstants.LOCAL_REGION_ID, read1.getRegionId()); |
| } |
| |
| @Test(timeout = 60000) |
| public void testReadMetadataCrossVersionFailure() throws Exception { |
| LogSegmentMetadata metadata1 = new LogSegmentMetadataBuilder("/metadata-failure", |
| 1, 1000, 1).setRegionId(TEST_REGION_ID).build(); |
| metadata1.write(zkc); |
| // synchronous read |
| try { |
| LogSegmentMetadata read1 = FutureUtils.result(LogSegmentMetadata.read(zkc, "/metadata-failure")); |
| fail("The previous statement should throw an exception"); |
| } catch (UnsupportedMetadataVersionException e) { |
| // Expected |
| } |
| } |
| |
| |
| @Test(timeout = 60000) |
| public void testMutateTruncationStatus() { |
| LogSegmentMetadata metadata = |
| new LogSegmentMetadataBuilder( |
| "/metadata", LogSegmentMetadataVersion.VERSION_V4_ENVELOPED_ENTRIES, 1L, 0L) |
| .setRegionId(0).setLogSegmentSequenceNo(1L).build(); |
| metadata = metadata.completeLogSegment("/completed-metadata", 1000L, 1000, 1000L, 0L, 0L); |
| |
| LogSegmentMetadata partiallyTruncatedSegment = |
| metadata.mutator() |
| .setTruncationStatus(TruncationStatus.PARTIALLY_TRUNCATED) |
| .setMinActiveDLSN(new DLSN(1L, 500L, 0L)) |
| .build(); |
| |
| LogSegmentMetadata fullyTruncatedSegment = |
| partiallyTruncatedSegment.mutator() |
| .setTruncationStatus(TruncationStatus.TRUNCATED) |
| .build(); |
| |
| assertEquals(new DLSN(1L, 500L, 0L), fullyTruncatedSegment.getMinActiveDLSN()); |
| } |
| |
| @Test(timeout = 60000) |
| public void testParseInvalidMetadata() throws Exception { |
| try { |
| LogSegmentMetadata.parseData("/metadata1", new byte[0], false); |
| fail("Should fail to parse invalid metadata"); |
| } catch (IOException ioe) { |
| // expected |
| } |
| } |
| |
| @Test(timeout = 60000) |
| public void testReadLogSegmentWithSequenceId() throws Exception { |
| LogSegmentMetadata metadata = |
| new LogSegmentMetadataBuilder( |
| "/metadata", LogSegmentMetadataVersion.VERSION_V5_SEQUENCE_ID, 1L, 0L) |
| .setRegionId(0) |
| .setLogSegmentSequenceNo(1L) |
| .setStartSequenceId(999L) |
| .build(); |
| // write inprogress log segment with v5 |
| String data = metadata.getFinalisedData(); |
| LogSegmentMetadata parsedMetadata = LogSegmentMetadata.parseData("/metadatav5", data.getBytes(UTF_8), false); |
| assertEquals(999L, parsedMetadata.getStartSequenceId()); |
| |
| LogSegmentMetadata metadatav4 = |
| new LogSegmentMetadataBuilder( |
| "/metadata", LogSegmentMetadataVersion.VERSION_V4_ENVELOPED_ENTRIES, 1L, 0L) |
| .setRegionId(0) |
| .setLogSegmentSequenceNo(1L) |
| .setStartSequenceId(999L) |
| .build(); |
| String datav4 = metadatav4.getFinalisedData(); |
| LogSegmentMetadata parsedMetadatav4 = |
| LogSegmentMetadata.parseData("/metadatav4", datav4.getBytes(UTF_8), false); |
| assertTrue(parsedMetadatav4.getStartSequenceId() < 0); |
| } |
| } |