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.Reader; 021import java.io.StringWriter; 022import java.io.Writer; 023import java.text.SimpleDateFormat; 024import java.util.Date; 025 026import org.jivesoftware.smack.XMPPConnection; 027 028/** 029 * Very simple debugger that prints to the console (stdout) the sent and received stanzas. Use 030 * this debugger with caution since printing to the console is an expensive operation that may 031 * even block the thread since only one thread may print at a time. 032 * <p> 033 * It is possible to not only print the raw sent and received stanzas but also the interpreted 034 * packets by Smack. By default interpreted packets won't be printed. To enable this feature 035 * just change the <tt>printInterpreted</tt> static variable to <tt>true</tt>. 036 * </p> 037 * 038 * @author Gaston Dombiak 039 */ 040public class ConsoleDebugger extends AbstractDebugger { 041 private final SimpleDateFormat dateFormatter = new SimpleDateFormat("HH:mm:ss"); 042 043 public ConsoleDebugger(XMPPConnection connection, Writer writer, Reader reader) { 044 super(connection, writer, reader); 045 } 046 047 @Override 048 protected void log(String logMessage) { 049 String formatedDate; 050 synchronized (dateFormatter) { 051 formatedDate = dateFormatter.format(new Date()); 052 } 053 // CHECKSTYLE:OFF 054 System.out.println(formatedDate + ' ' + logMessage); 055 // CHECKSTYLE:ON 056 } 057 058 @Override 059 protected void log(String logMessage, Throwable throwable) { 060 StringWriter sw = new StringWriter(); 061 PrintWriter pw = new PrintWriter(sw); 062 // CHECKSTYLE:OFF 063 throwable.printStackTrace(pw); 064 // CHECKSTYLE:ON 065 log(logMessage + sw); 066 } 067 068}