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annotate src/org/tmatesoft/hg/internal/StreamLogFacility.java @ 357:dfb8405d996f

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Clean debug stacktraces
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Tue, 06 Dec 2011 19:47:01 +0100
parents 981f9f50bb6c
children 909306e412e2
rev   line source
295
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1 /*
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2 * Copyright (c) 2011 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.internal;
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18
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19 import java.io.PrintStream;
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20
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21 import org.tmatesoft.hg.util.LogFacility;
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22
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23 /**
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24 * Primitive implementation of {@link LogFacility} that directs all output to specified {@link PrintStream}.
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25 *
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26 * @author Artem Tikhomirov
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27 * @author TMate Software Ltd.
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28 */
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29 public class StreamLogFacility implements LogFacility {
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30
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31 private final boolean isDebug;
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32 private final boolean isInfo;
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33 protected final boolean timestamp;
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34 protected final PrintStream outStream;
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35
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36 public StreamLogFacility(boolean pringDebug, boolean printInfo, boolean needTimestamp, PrintStream out) {
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37 isDebug = pringDebug;
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38 isInfo = printInfo;
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39 timestamp = needTimestamp;
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40 outStream = out;
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41 }
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42
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43 public boolean isDebug() {
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44 return isDebug;
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45 }
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46
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47 public boolean isInfo() {
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48 return isInfo;
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49 }
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50
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51 public void debug(Class<?> src, String format, Object... args) {
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52 if (!isDebug) {
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53 return;
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54 }
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55 printf("DEBUG", src, format, args);
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56 }
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57
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58 public void info(Class<?> src, String format, Object... args) {
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59 if (!isInfo) {
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60 return;
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61 }
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62 printf("INFO", src, format, args);
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63 }
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64
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65 public void warn(Class<?> src, String format, Object... args) {
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66 printf("WARN", src, format, args);
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67 }
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68
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69 public void error(Class<?> src, String format, Object... args) {
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70 printf("ERROR", src, format, args);
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71 }
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72
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73 public void debug(Class<?> src, Throwable th, String message) {
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74 if (!isDebug) {
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75 return;
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76 }
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77 printf("DEBUG", src, th, message);
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78 }
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79
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80 public void info(Class<?> src, Throwable th, String message) {
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81 if (!isInfo) {
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82 return;
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83 }
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84 printf("INFO", src, th, message);
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85 }
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86
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87 public void warn(Class<?> src, Throwable th, String message) {
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88 printf("WARN", src, th, message);
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89 }
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90
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91 public void error(Class<?> src, Throwable th, String message) {
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92 printf("ERROR", src, th, message);
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93 }
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94
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95 protected void printf(String level, Class<?> src, String format, Object... args) {
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96 String msg = String.format(format, args);
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97 if (timestamp) {
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98 outStream.printf(isDebug ? "%tT.%1$tL " : "%tT ", System.currentTimeMillis());
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99 }
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100 if (isDebug) {
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101 String cn = src.getName();
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102 if (cn.startsWith("org.tmatesoft.hg.")) {
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103 cn = "oth." + cn.substring("org.tmatesoft.hg.".length());
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104 }
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105 outStream.printf("(%s) ", cn);
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106 }
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107 outStream.printf("%s: %s", level, msg);
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108 if (format.length() == 0 || format.charAt(format.length() - 1) != '\n') {
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109 outStream.println();
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110 }
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111 }
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112 protected void printf(String level, Class<?> src, Throwable th, String msg) {
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113 if (msg != null || timestamp || isDebug || th == null) {
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114 printf(level, src, msg == null ? "" : msg, (Object[]) null);
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115 }
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116 if (th != null) {
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117 if (isDebug || isInfo) {
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118 // full stack trace
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119 th.printStackTrace(outStream);
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120 } else {
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121 // just title of the exception
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122 outStream.printf("%s: %s\n", th.getClass().getName(), th.getMessage());
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123 }
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Artem Tikhomirov <tikhomirov.artem@gmail.com>
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124 }
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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125 }
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
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126
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
parents:
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127 // alternative to hardcore System.out where SessionContext is not available now (or ever)
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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128 public static LogFacility newDefault() {
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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129 return new StreamLogFacility(true, true, true, System.out);
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
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130 }
981f9f50bb6c Issue 11: Error log facility. SessionContext to share common facilities
Artem Tikhomirov <tikhomirov.artem@gmail.com>
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131 }