package org.apache.hadoop.chukwa.datacollection.adaptor.filetailer;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import junit.framework.Assert;
import junit.framework.TestCase;
import org.apache.hadoop.chukwa.conf.ChukwaConfiguration;
import org.apache.hadoop.chukwa.datacollection.agent.ChukwaAgent;
import org.apache.hadoop.chukwa.datacollection.controller.ChukwaAgentController;
public class TestFileExpirationPolicy extends TestCase {
public void testExpiration() {
ChukwaAgent agent = null;
try {
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);
FileTailingAdaptor.GRACEFUL_PERIOD = 30 * 1000;
long adaptorId = agent
.processCommand("add org.apache.hadoop.chukwa.datacollection.adaptor.filetailer.CharFileTailingAdaptorUTF8NewLineEscaped MyType 0 /myWrongPath"
+ System.currentTimeMillis() + " 0");
assertTrue(adaptorId != -1);
assertTrue(agent.getAdaptorList().containsKey(adaptorId) == true);
Thread.sleep(FileTailingAdaptor.GRACEFUL_PERIOD + 10000);
assertTrue(agent.getAdaptorList().containsKey(adaptorId) == false);
} catch (Exception e) {
Assert.fail("Exception in TestFileExpirationPolicy");
} finally {
if (agent != null) {
agent.shutdown();
}
}
}
public void testExpirationOnFileThatHasBennDeleted() {
ChukwaAgent agent = null;
File testFile = null;
try {
File tempDir = new File(System.getProperty("test.build.data", "/tmp"));
if (!tempDir.exists()) {
tempDir.mkdirs();
}
String logFile = tempDir.getPath() + "/chukwatestExpiration.txt";
testFile = makeTestFile(logFile, 8000);
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);
assertTrue(testFile.canRead() == true);
FileTailingAdaptor.GRACEFUL_PERIOD = 30 * 1000;
long adaptorId = agent
.processCommand("add org.apache.hadoop.chukwa.datacollection.adaptor.filetailer.CharFileTailingAdaptorUTF8NewLineEscaped MyType 0 "
+ logFile + " 0");
assertTrue(adaptorId != -1);
assertTrue(agent.getAdaptorList().containsKey(adaptorId) == true);
Thread.sleep(10000);
testFile.delete();
Thread.sleep(FileTailingAdaptor.GRACEFUL_PERIOD + 10000);
assertTrue(agent.getAdaptorList().containsKey(adaptorId) == false);
agent.shutdown();
} catch (Exception e) {
Assert.fail("Exception in TestFileExpirationPolicy");
} finally {
if (agent != null) {
agent.shutdown();
}
}
}
private File makeTestFile(String name, int size) throws IOException {
File tmpOutput = new File(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;
}
}