/* * Copyright 1999-2005 The Apache Software Foundation. *  * 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 org.apache.log4j.net.test;import org.apache.log4j.*;import org.apache.log4j.net.SocketAppender;public class Loop {  public static void main(String[] args) {            Logger root = Logger.getRootLogger();    Logger cat = Logger.getLogger(Loop.class.getName());    if(args.length != 2)       usage("Wrong number of arguments.");         String host = args[0];    int port = 0;    try {      port = Integer.valueOf(args[1]).intValue();    }    catch (NumberFormatException e) {        usage("Argument [" + args[1]  + "] is not in proper int form.");    }    SocketAppender sa = new SocketAppender(host, port);    Layout layout = new PatternLayout("%5p [%t] %x %c - %m\n");    Appender so = new ConsoleAppender(layout, "System.out");    root.addAppender(sa);    root.addAppender(so);    int i = 0;    while(true) {      NDC.push(""+ (i++));      cat.debug("Debug message.");      root.info("Info message.");      NDC.pop();    }  }  static  void  usage(String msg) {    System.err.println(msg);    System.err.println(      "Usage: java " +Loop.class.getName() + " host port");    System.exit(1);  }    }