SocketMin.java

/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2013, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation.
 */
package ch.qos.logback.classic.net;

import java.io.InputStreamReader;

import org.slf4j.LoggerFactory;

import ch.qos.logback.classic.BasicConfigurator;
import ch.qos.logback.classic.Logger;

public class SocketMin {

  static Logger logger = (Logger) LoggerFactory.getLogger(SocketMin.class
      .getName());
  static SocketAppender s;

  public static void main(String argv[]) {
    if (argv.length == 3) {
      init(argv[0], argv[1]);
    } else {
      usage("Wrong number of arguments.");
    }

    // NDC.push("some context");
    if (argv[2].equals("true")) {
      loop();
    } else {
      test();
    }

    s.stop();
  }

  static void usage(String msg) {
    System.err.println(msg);
    System.err.println("Usage: java " + SocketMin.class
        + " host port true|false");
    System.exit(1);
  }

  static void init(String host, String portStr) {
    Logger root = (Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
    BasicConfigurator.configure(root.getLoggerContext());
    try {
      int port = Integer.parseInt(portStr);
      logger.info("Creating socket appender (" + host + "," + port + ").");
      s = new SocketAppender();
      s.setRemoteHost(host);
      s.setPort(port);
      s.setName("S");
      root.addAppender(s);
    } catch (java.lang.NumberFormatException e) {
      e.printStackTrace();
      usage("Could not interpret port number [" + portStr + "].");
    } catch (Exception e) {
      System.err.println("Could not start!");
      e.printStackTrace();
      System.exit(1);
    }
  }

  static void loop() {
    Logger root = (Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
    InputStreamReader in = new InputStreamReader(System.in);
    System.out.println("Type 'q' to quit");
    int i;
    int k = 0;
    while (true) {
      logger.debug("Message " + k++);
      logger.info("Message " + k++);
      logger.warn("Message " + k++);
      logger.error("Message " + k++, new Exception("Just testing"));
      try {
        i = in.read();
      } catch (Exception e) {
        return;
      }
      if (i == -1)
        break;
      if (i == 'q')
        break;
      if (i == 'r') {
        System.out.println("Removing appender S");
        root.detachAppender("S");
      }
    }
  }

  static void test() {
    int i = 0;
    logger.debug("Message " + i++);
    logger.info("Message " + i++);
    logger.warn("Message " + i++);
    logger.error("Message " + i++);
    logger.debug("Message " + i++, new Exception("Just testing."));
  }
}