GatherStatusStream.java

/**
 * Twitter Tools
 *
 * Licensed 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 cc.twittertools.stream;

import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.apache.log4j.rolling.RollingFileAppender;
import org.apache.log4j.rolling.TimeBasedRollingPolicy;
import org.apache.log4j.varia.LevelRangeFilter;

import twitter4j.RawStreamListener;
import twitter4j.TwitterException;
import twitter4j.TwitterStream;
import twitter4j.TwitterStreamFactory;

public final class GatherStatusStream {
  private static int cnt = 0;

  @SuppressWarnings("unused")
  private static final String MINUTE_ROLL = ".%d{yyyy-MM-dd-HH-mm}.gz";
  private static final String HOUR_ROLL = ".%d{yyyy-MM-dd-HH}.gz";

  public static void main(String[] args) throws TwitterException {
    PatternLayout layoutStandard = new PatternLayout();
    layoutStandard.setConversionPattern("[%p] %d %c %M - %m%n");

    PatternLayout layoutSimple = new PatternLayout();
    layoutSimple.setConversionPattern("%m%n");

    // Filter for the statuses: we only want INFO messages
    LevelRangeFilter filter = new LevelRangeFilter();
    filter.setLevelMax(Level.INFO);
    filter.setLevelMin(Level.INFO);
    filter.setAcceptOnMatch(true);
    filter.activateOptions();

    TimeBasedRollingPolicy statusesRollingPolicy = new TimeBasedRollingPolicy();
    statusesRollingPolicy.setFileNamePattern("statuses.log" + HOUR_ROLL);
    statusesRollingPolicy.activateOptions();

    RollingFileAppender statusesAppender = new RollingFileAppender();
    statusesAppender.setRollingPolicy(statusesRollingPolicy);
    statusesAppender.addFilter(filter);
    statusesAppender.setLayout(layoutSimple);
    statusesAppender.activateOptions();

    TimeBasedRollingPolicy warningsRollingPolicy = new TimeBasedRollingPolicy();
    warningsRollingPolicy.setFileNamePattern("warnings.log" + HOUR_ROLL);
    warningsRollingPolicy.activateOptions();

    RollingFileAppender warningsAppender = new RollingFileAppender();
    warningsAppender.setRollingPolicy(statusesRollingPolicy);
    warningsAppender.setThreshold(Level.WARN);
    warningsAppender.setLayout(layoutStandard);
    warningsAppender.activateOptions();

    ConsoleAppender consoleAppender = new ConsoleAppender();
    consoleAppender.setThreshold(Level.WARN);
    consoleAppender.setLayout(layoutStandard);
    consoleAppender.activateOptions();

    // configures the root logger
    Logger rootLogger = Logger.getRootLogger();
    rootLogger.setLevel(Level.INFO);
    rootLogger.removeAllAppenders();
    rootLogger.addAppender(consoleAppender);
    rootLogger.addAppender(statusesAppender);
    rootLogger.addAppender(warningsAppender);

    // creates a custom logger and log messages
    final Logger logger = Logger.getLogger(GatherStatusStream.class);

    TwitterStream twitterStream = new TwitterStreamFactory().getInstance();
    RawStreamListener rawListener = new RawStreamListener() {

      @Override
      public void onMessage(String rawString) {
        cnt++;
        logger.info(rawString);
        if (cnt % 1000 == 0) {
          System.out.println(cnt + " messages received.");
        }
      }

      @Override
      public void onException(Exception ex) {
        logger.warn(ex);
      }

    };

    twitterStream.addListener(rawListener);
    twitterStream.sample();
  }
}