server/src/test/java/io/druid/server/log/FileRequestLoggerTest.java

/*
 * Licensed to Metamarkets Group Inc. (Metamarkets) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. Metamarkets 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 io.druid.server.log;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.io.CharStreams;
import io.druid.java.util.common.DateTimes;
import io.druid.server.RequestLogLine;
import org.easymock.EasyMock;
import org.joda.time.DateTime;
import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;

import java.io.File;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;

public class FileRequestLoggerTest
{
  private final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);
  private static final String HOST = "localhost";

  @Rule
  public TemporaryFolder temporaryFolder = new TemporaryFolder();

  @Test public void testLog() throws IOException
  {
    ObjectMapper objectMapper = new ObjectMapper();
    DateTime dateTime = DateTimes.nowUtc();
    File logDir = temporaryFolder.newFolder();
    String actualLogString = dateTime.toString() + "\t" + HOST;

    FileRequestLogger fileRequestLogger = new FileRequestLogger(objectMapper, scheduler, logDir);
    fileRequestLogger.start();
    RequestLogLine requestLogLine = EasyMock.createMock(RequestLogLine.class);
    EasyMock.expect(requestLogLine.getLine(EasyMock.anyObject())).andReturn(actualLogString).anyTimes();
    EasyMock.replay(requestLogLine);
    fileRequestLogger.log(requestLogLine);
    File logFile = new File(logDir, dateTime.toString("yyyy-MM-dd'.log'"));
    String logString = CharStreams.toString(Files.newBufferedReader(logFile.toPath(), StandardCharsets.UTF_8));
    Assert.assertTrue(logString.contains(actualLogString));
    fileRequestLogger.stop();
  }
}