001/** 002 * 003 * Copyright the original author or authors 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.jivesoftware.smack.debugger; 018 019import java.io.PrintWriter; 020import java.io.StringWriter; 021import java.text.SimpleDateFormat; 022import java.util.Date; 023 024import org.jivesoftware.smack.XMPPConnection; 025 026/** 027 * Very simple debugger that prints to the console (stdout) the sent and received stanzas. Use 028 * this debugger with caution since printing to the console is an expensive operation that may 029 * even block the thread since only one thread may print at a time. 030 * <p> 031 * It is possible to not only print the raw sent and received stanzas but also the interpreted 032 * packets by Smack. By default interpreted packets won't be printed. To enable this feature 033 * just change the <tt>printInterpreted</tt> static variable to <tt>true</tt>. 034 * </p> 035 * 036 * @author Gaston Dombiak 037 */ 038public class ConsoleDebugger extends AbstractDebugger { 039 private final SimpleDateFormat dateFormatter = new SimpleDateFormat("HH:mm:ss"); 040 041 public ConsoleDebugger(XMPPConnection connection) { 042 super(connection); 043 } 044 045 @Override 046 protected void log(String logMessage) { 047 String formatedDate; 048 synchronized (dateFormatter) { 049 formatedDate = dateFormatter.format(new Date()); 050 } 051 // CHECKSTYLE:OFF 052 System.out.println(formatedDate + ' ' + logMessage); 053 // CHECKSTYLE:ON 054 } 055 056 @Override 057 protected void log(String logMessage, Throwable throwable) { 058 StringWriter sw = new StringWriter(); 059 PrintWriter pw = new PrintWriter(sw); 060 // CHECKSTYLE:OFF 061 throwable.printStackTrace(pw); 062 // CHECKSTYLE:ON 063 log(logMessage + sw); 064 } 065 066 public static final class Factory implements SmackDebuggerFactory { 067 068 public static final SmackDebuggerFactory INSTANCE = new Factory(); 069 070 private Factory() { 071 } 072 073 @Override 074 public SmackDebugger create(XMPPConnection connection) throws IllegalArgumentException { 075 return new ConsoleDebugger(connection); 076 } 077 078 } 079}