/**
* 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.contrib.bkjournal;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.IOException;
import org.apache.bookkeeper.client.BookKeeper;
import org.apache.bookkeeper.client.LedgerHandle;
import org.apache.bookkeeper.conf.ClientConfiguration;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.hdfs.protocol.HdfsConstants;
import org.apache.zookeeper.ZooKeeper;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
/**
* Unit test for the bkjm's streams
*/
public class TestBookKeeperEditLogStreams {
static final Log LOG = LogFactory.getLog(TestBookKeeperEditLogStreams.class);
private static BKJMUtil bkutil;
private final static int numBookies = 3;
@BeforeClass
public static void setupBookkeeper() throws Exception {
bkutil = new BKJMUtil(numBookies);
bkutil.start();
}
@AfterClass
public static void teardownBookkeeper() throws Exception {
bkutil.teardown();
}
/**
* Test that bkjm will refuse open a stream on an empty
* ledger.
*/
@Test
public void testEmptyInputStream() throws Exception {
ZooKeeper zk = BKJMUtil.connectZooKeeper();
BookKeeper bkc = new BookKeeper(new ClientConfiguration(), zk);
try {
LedgerHandle lh = bkc.createLedger(BookKeeper.DigestType.CRC32, "foobar"
.getBytes());
lh.close();
EditLogLedgerMetadata metadata = new EditLogLedgerMetadata("/foobar",
HdfsConstants.LAYOUT_VERSION, lh.getId(), 0x1234);
try {
new BookKeeperEditLogInputStream(lh, metadata, -1);
fail("Shouldn't get this far, should have thrown");
} catch (IOException ioe) {
assertTrue(ioe.getMessage().contains("Invalid first bk entry to read"));
}
metadata = new EditLogLedgerMetadata("/foobar",
HdfsConstants.LAYOUT_VERSION, lh.getId(), 0x1234);
try {
new BookKeeperEditLogInputStream(lh, metadata, 0);
fail("Shouldn't get this far, should have thrown");
} catch (IOException ioe) {
assertTrue(ioe.getMessage().contains("Invalid first bk entry to read"));
}
} finally {
bkc.close();
zk.close();
}
}
}