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annotate src/org/eclipse/jetty/util/log/Logger.java @ 804:9f5ba30722bb

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remove org.eclipse.jetty.util.ajax
author Franklin Schmidt <fschmidt@gmail.com>
date Wed, 07 Sep 2016 21:28:02 -0600
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1 //
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2 // ========================================================================
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
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4 // ------------------------------------------------------------------------
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5 // All rights reserved. This program and the accompanying materials
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6 // are made available under the terms of the Eclipse Public License v1.0
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7 // and Apache License v2.0 which accompanies this distribution.
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8 //
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9 // The Eclipse Public License is available at
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10 // http://www.eclipse.org/legal/epl-v10.html
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11 //
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12 // The Apache License v2.0 is available at
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13 // http://www.opensource.org/licenses/apache2.0.php
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14 //
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15 // You may elect to redistribute this code under either of these licenses.
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16 // ========================================================================
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17 //
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18
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19 package org.eclipse.jetty.util.log;
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20
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21 /**
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22 * A simple logging facade that is intended simply to capture the style of logging as used by Jetty.
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23 */
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24 public interface Logger
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25 {
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26 /**
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27 * @return the name of this logger
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28 */
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29 public String getName();
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30
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31 /**
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32 * Formats and logs at warn level.
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33 * @param msg the formatting string
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34 * @param args the optional arguments
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35 */
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36 public void warn(String msg, Object... args);
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37
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38 /**
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39 * Logs the given Throwable information at warn level
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40 * @param thrown the Throwable to log
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41 */
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42 public void warn(Throwable thrown);
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43
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44 /**
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45 * Logs the given message at warn level, with Throwable information.
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46 * @param msg the message to log
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47 * @param thrown the Throwable to log
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48 */
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49 public void warn(String msg, Throwable thrown);
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50
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51 /**
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52 * Formats and logs at info level.
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53 * @param msg the formatting string
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54 * @param args the optional arguments
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55 */
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56 public void info(String msg, Object... args);
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57
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58 /**
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59 * Logs the given Throwable information at info level
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60 * @param thrown the Throwable to log
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61 */
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62 public void info(Throwable thrown);
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63
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64 /**
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65 * Logs the given message at info level, with Throwable information.
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66 * @param msg the message to log
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67 * @param thrown the Throwable to log
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68 */
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69 public void info(String msg, Throwable thrown);
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70
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71 /**
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72 * @return whether the debug level is enabled
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73 */
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74 public boolean isDebugEnabled();
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75
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76 /**
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77 * Mutator used to turn debug on programmatically.
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78 * @param enabled whether to enable the debug level
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79 */
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80 public void setDebugEnabled(boolean enabled);
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81
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82 /**
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83 * Formats and logs at debug level.
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84 * @param msg the formatting string
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85 * @param args the optional arguments
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86 */
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87 public void debug(String msg, Object... args);
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88
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89 /**
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90 * Logs the given Throwable information at debug level
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91 * @param thrown the Throwable to log
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92 */
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93 public void debug(Throwable thrown);
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94
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95 /**
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96 * Logs the given message at debug level, with Throwable information.
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97 * @param msg the message to log
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98 * @param thrown the Throwable to log
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99 */
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100 public void debug(String msg, Throwable thrown);
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101
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102 /**
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103 * @param name the name of the logger
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104 * @return a logger with the given name
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105 */
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106 public Logger getLogger(String name);
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107
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108 /**
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109 * Ignore an exception.
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110 * <p>This should be used rather than an empty catch block.
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111 */
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112 public void ignore(Throwable ignored);
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113 }