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* 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.chukwa.datacollection.adaptor.filetailer;
import java.io.*;
import junit.framework.TestCase;
import org.apache.hadoop.chukwa.conf.ChukwaConfiguration;
import java.util.Map;
import java.util.Iterator;
import org.apache.hadoop.chukwa.Chunk;
import org.apache.hadoop.chukwa.datacollection.adaptor.*;
import org.apache.hadoop.chukwa.datacollection.agent.ChukwaAgent;
import org.apache.hadoop.chukwa.datacollection.controller.ChukwaAgentController;
import org.apache.hadoop.chukwa.datacollection.connector.ChunkCatcherConnector;
public class TestLogRotate extends TestCase {
ChunkCatcherConnector chunks;
public TestLogRotate() {
chunks = new ChunkCatcherConnector();
chunks.start();
}
public void testLogRotate() throws IOException, InterruptedException,
ChukwaAgent.AlreadyRunningException {
ChukwaAgent agent = new ChukwaAgent();
// Remove any adaptor left over from previous run
ChukwaConfiguration cc = new ChukwaConfiguration();
int portno = cc.getInt("chukwaAgent.control.port", 9093);
ChukwaAgentController cli = new ChukwaAgentController("localhost", portno);
cli.removeAll();
// sleep for some time to make sure we don't get chunk from existing streams
Thread.sleep(5000);
File testFile = makeTestFile("chukwaLogRotateTest", 80);
String adaptorId = agent
.processAddCommand("add lr =org.apache.hadoop.chukwa.datacollection.adaptor.filetailer.CharFileTailingAdaptorUTF8"
+ " lines " + testFile + " 0");
assertTrue(adaptorId.equals("lr"));
System.out.println("getting a chunk...");
Chunk c = chunks.waitForAChunk();
System.out.println("got chunk");
while (!c.getDataType().equals("lines")) {
c = chunks.waitForAChunk();
}
assertTrue(c.getSeqID() == testFile.length());
assertTrue(c.getRecordOffsets().length == 80);
int recStart = 0;
for (int rec = 0; rec < c.getRecordOffsets().length; ++rec) {
String record = new String(c.getData(), recStart,
c.getRecordOffsets()[rec] - recStart + 1);
System.out.println("record " + rec + " was: " + record);
assertTrue(record.equals(rec + " abcdefghijklmnopqrstuvwxyz\n"));
recStart = c.getRecordOffsets()[rec] + 1;
}
assertTrue(c.getDataType().equals("lines"));
testFile = makeTestFile("chukwaLogRotateTest", 40);
c = chunks.waitForAChunk();
System.out.println("got chunk");
while (!c.getDataType().equals("lines")) {
c = chunks.waitForAChunk();
}
// assertTrue(c.getSeqID() == testFile.length());
assertTrue(c.getRecordOffsets().length == 40);
recStart = 0;
for (int rec = 0; rec < c.getRecordOffsets().length; ++rec) {
String record = new String(c.getData(), recStart,
c.getRecordOffsets()[rec] - recStart + 1);
System.out.println("record " + rec + " was: " + record);
assertTrue(record.equals(rec + " abcdefghijklmnopqrstuvwxyz\n"));
recStart = c.getRecordOffsets()[rec] + 1;
}
assertTrue(c.getDataType().equals("lines"));
agent.stopAdaptor(adaptorId, false);
agent.shutdown();
Thread.sleep(2000);
}
private File makeTestFile(String name, int size) throws IOException {
File tmpOutput = new File(System.getProperty("test.build.data", "/tmp"),
name);
FileOutputStream fos = new FileOutputStream(tmpOutput);
PrintWriter pw = new PrintWriter(fos);
for (int i = 0; i < size; ++i) {
pw.print(i + " ");
pw.println("abcdefghijklmnopqrstuvwxyz");
}
pw.flush();
pw.close();
return tmpOutput;
}
public static void main(String[] args) {
try {
TestLogRotate tests = new TestLogRotate();
tests.testLogRotate();
} catch (Exception e) {
e.printStackTrace();
}
}
}