Mercurial > hg > blitz_stable

annotate src/com/go/trove/log/LogScribe.java @ 27:511648fa4d64 Version 2.1

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Version to 2.1
author Dan Creswell <dan.creswell@gmail.com>
date Mon, 04 Jan 2010 13:00:40 +0000
parents 3dc0c5604566
children
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1 /* ====================================================================
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2 * Trove - Copyright (c) 1997-2000 Walt Disney Internet Group
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3 * ====================================================================
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4 * The Tea Software License, Version 1.1
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5 *
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6 * Copyright (c) 2000 Walt Disney Internet Group. All rights reserved.
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7 *
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions
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10 * are met:
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11 *
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12 * 1. Redistributions of source code must retain the above copyright
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13 * notice, this list of conditions and the following disclaimer.
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14 *
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15 * 2. Redistributions in binary form must reproduce the above copyright
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16 * notice, this list of conditions and the following disclaimer in
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17 * the documentation and/or other materials provided with the
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18 * distribution.
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19 *
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20 * 3. The end-user documentation included with the redistribution,
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21 * if any, must include the following acknowledgment:
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22 * "This product includes software developed by the
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23 * Walt Disney Internet Group (http://opensource.go.com/)."
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24 * Alternately, this acknowledgment may appear in the software itself,
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25 * if and wherever such third-party acknowledgments normally appear.
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26 *
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27 * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must
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28 * not be used to endorse or promote products derived from this
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29 * software without prior written permission. For written
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30 * permission, please contact opensource@dig.com.
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31 *
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32 * 5. Products derived from this software may not be called "Tea",
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33 * "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet",
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34 * "Kettle", "Trove" or "BeanDoc" appear in their name, without prior
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35 * written permission of the Walt Disney Internet Group.
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36 *
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37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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40 * DISCLAIMED. IN NO EVENT SHALL THE WALT DISNEY INTERNET GROUP OR ITS
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41 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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42 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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43 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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44 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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45 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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46 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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47 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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48 * ====================================================================
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49 *
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50 * For more information about Tea, please see http://opensource.go.com/.
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51 */
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52
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53 package com.go.trove.log;
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54
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55 import java.io.*;
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56 import java.text.*;
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57 import java.util.TimeZone;
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58 import com.go.trove.util.FastDateFormat;
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59
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60 /******************************************************************************
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61 * LogScribe is a LogListener that writes log messages to a PrintWriter. Each
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62 * message is printed to a line that is prepended with other LogEvent
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63 * information. The default prepend format is as follows:
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64 *
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65 * <pre>
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66 * [event type code],[date & time],[thread name],[log source name]>[one space]
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67 * </pre>
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68 *
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69 * The event type codes are <tt>" D", " I", "*W" and "*E"</tt> for debug,
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70 * info, warn and error, respectively. The default date format looks like
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71 * this: <tt>"1999/06/08 18:08:34.067 PDT"</tt>. If there is no log source, or
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72 * it has no name, it is omitted from the prepend. Here is a sample line that
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73 * is written out:
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74 *
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75 * <pre>
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76 * I,1999/06/08 18:08:34.67 PDT,main> Started Transaction Manager
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77 * </pre>
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78 *
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79 * @author Brian S O'Neill
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80 * @version
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81 * <!--$$Revision: 1.1 $-->, <!--$$JustDate:--> 01/07/02 <!-- $-->
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82 */
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83 public class LogScribe implements LogListener {
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84 private PrintWriter mWriter;
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85 private DateFormat mSlowFormat;
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86 private FastDateFormat mFastFormat;
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87
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88 private boolean mShowThread = true;
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89 private boolean mShowSourceName = true;
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90
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91 public LogScribe(PrintWriter writer) {
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92 this(writer, (FastDateFormat)null);
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93 }
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94
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95 public LogScribe(PrintWriter writer, DateFormat format) {
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96 mWriter = writer;
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97 mSlowFormat = format;
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98 if (format == null) {
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99 mFastFormat =
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100 FastDateFormat.getInstance("yyyy/MM/dd HH:mm:ss.SSS z");
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101 }
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102 else if (format instanceof SimpleDateFormat) {
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103 SimpleDateFormat simple = (SimpleDateFormat)format;
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104 String pattern = simple.toPattern();
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105 TimeZone timeZone = simple.getTimeZone();
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106 DateFormatSymbols symbols = simple.getDateFormatSymbols();
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107 mFastFormat =
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108 FastDateFormat.getInstance(pattern, timeZone, null, symbols);
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109 }
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110 }
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111
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112 public LogScribe(PrintWriter writer, FastDateFormat format) {
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113 mWriter = writer;
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114 mSlowFormat = null;
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115 if (format == null) {
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116 format = FastDateFormat.getInstance("yyyy/MM/dd HH:mm:ss.SSS z");
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117 }
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118 mFastFormat = format;
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119 }
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120
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121 public void logMessage(LogEvent e) {
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122 String message = e.getMessage();
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123 if (message != null) {
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124 synchronized (mWriter) {
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125 mWriter.print(createPrepend(e));
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126 mWriter.println(message);
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127 mWriter.flush();
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128 }
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129 }
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130 }
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Dan Creswell <dan.creswell@gmail.com>
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131
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Dan Creswell <dan.creswell@gmail.com>
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132 public void logException(LogEvent e) {
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Dan Creswell <dan.creswell@gmail.com>
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133 Throwable t = e.getException();
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Dan Creswell <dan.creswell@gmail.com>
parents:
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134
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Dan Creswell <dan.creswell@gmail.com>
parents:
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135 if (t == null) {
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Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
136 logMessage(e);
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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137 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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138 else {
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Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
139 synchronized (mWriter) {
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Dan Creswell <dan.creswell@gmail.com>
parents:
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140 mWriter.print(createPrepend(e));
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Dan Creswell <dan.creswell@gmail.com>
parents:
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141 t.printStackTrace(mWriter);
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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142 mWriter.flush();
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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143 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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144 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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145 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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146
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Dan Creswell <dan.creswell@gmail.com>
parents:
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147 /**
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Dan Creswell <dan.creswell@gmail.com>
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148 * The showing of the event thread name is on by default.
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Dan Creswell <dan.creswell@gmail.com>
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149 */
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Dan Creswell <dan.creswell@gmail.com>
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150 public boolean isShowThreadEnabled() {
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Dan Creswell <dan.creswell@gmail.com>
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151 return mShowThread;
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Dan Creswell <dan.creswell@gmail.com>
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152 }
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Dan Creswell <dan.creswell@gmail.com>
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153
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Dan Creswell <dan.creswell@gmail.com>
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154 public void setShowThreadEnabled(boolean enabled) {
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Dan Creswell <dan.creswell@gmail.com>
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155 mShowThread = enabled;
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Dan Creswell <dan.creswell@gmail.com>
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156 }
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Dan Creswell <dan.creswell@gmail.com>
parents:
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157
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Dan Creswell <dan.creswell@gmail.com>
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158 /**
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Dan Creswell <dan.creswell@gmail.com>
parents:
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159 * The showing of the event source name is on by default.
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Dan Creswell <dan.creswell@gmail.com>
parents:
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160 */
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Dan Creswell <dan.creswell@gmail.com>
parents:
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161 public boolean isShowSourceEnabled() {
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Dan Creswell <dan.creswell@gmail.com>
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162 return mShowSourceName;
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Dan Creswell <dan.creswell@gmail.com>
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163 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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164
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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165 public void setShowSourceEnabled(boolean enabled) {
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Dan Creswell <dan.creswell@gmail.com>
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166 mShowSourceName = enabled;
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Dan Creswell <dan.creswell@gmail.com>
parents:
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167 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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168
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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169 /**
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Dan Creswell <dan.creswell@gmail.com>
parents:
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170 * Creates the default line prepend for a message.
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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171 */
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Dan Creswell <dan.creswell@gmail.com>
parents:
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172 protected String createPrepend(LogEvent e) {
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Dan Creswell <dan.creswell@gmail.com>
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173 StringBuffer pre = new StringBuffer(80);
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Dan Creswell <dan.creswell@gmail.com>
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174
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Dan Creswell <dan.creswell@gmail.com>
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175 String code = "??";
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Dan Creswell <dan.creswell@gmail.com>
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176 switch (e.getType()) {
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Dan Creswell <dan.creswell@gmail.com>
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177 case LogEvent.DEBUG_TYPE:
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Dan Creswell <dan.creswell@gmail.com>
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178 code = " D";
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Dan Creswell <dan.creswell@gmail.com>
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179 break;
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Dan Creswell <dan.creswell@gmail.com>
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180 case LogEvent.INFO_TYPE:
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Dan Creswell <dan.creswell@gmail.com>
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181 code = " I";
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Dan Creswell <dan.creswell@gmail.com>
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182 break;
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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183 case LogEvent.WARN_TYPE:
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Dan Creswell <dan.creswell@gmail.com>
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184 code = "*W";
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Dan Creswell <dan.creswell@gmail.com>
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185 break;
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
186 case LogEvent.ERROR_TYPE:
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Dan Creswell <dan.creswell@gmail.com>
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187 code = "*E";
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Dan Creswell <dan.creswell@gmail.com>
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188 break;
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Dan Creswell <dan.creswell@gmail.com>
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189 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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190
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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191 pre.append(code);
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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192 pre.append(',');
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
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193 if (mFastFormat != null) {
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Dan Creswell <dan.creswell@gmail.com>
parents:
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194 pre.append(mFastFormat.format(e.getTimestamp()));
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Dan Creswell <dan.creswell@gmail.com>
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195 }
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Dan Creswell <dan.creswell@gmail.com>
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196 else {
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Dan Creswell <dan.creswell@gmail.com>
parents:
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197 synchronized (mSlowFormat) {
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Dan Creswell <dan.creswell@gmail.com>
parents:
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198 pre.append(mSlowFormat.format(e.getTimestamp()));
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Dan Creswell <dan.creswell@gmail.com>
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199 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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200 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
201
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
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202 if (isShowThreadEnabled()) {
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
203 pre.append(',');
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
204 pre.append(e.getThreadName());
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
205 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
206
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
207 if (isShowSourceEnabled()) {
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
208 Log source = e.getLogSource();
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
209 if (source != null) {
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Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
210 String sourceName = source.getName();
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
211 if (sourceName != null) {
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
212 pre.append(',');
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
213 pre.append(sourceName);
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
214 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
215 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
216 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
217
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
218 pre.append('>');
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
219 pre.append(' ');
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
220
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
221 return pre.toString();
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
222 }
3dc0c5604566 Initial checkin of blitz 2.0 fcs - no installer yet.
Dan Creswell <dan.creswell@gmail.com>
parents:
diff changeset
223 }