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1 /*******************************************************************************
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2
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3 copyright: Copyright (c) 2004 Kris Bell. All rights reserved
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4
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5 license: BSD style: $(LICENSE)
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6
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7 version: Initial release: May 2004
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8
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9 author: Kris
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10
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11 *******************************************************************************/
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12
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13 module tango.util.log.FileAppender;
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14
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15 private import tango.util.log.Appender;
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16
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17 private import tango.io.Buffer,
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18 tango.io.FileConst,
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19 tango.io.FileConduit;
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20
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21 private import tango.io.model.IConduit;
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22
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23 /*******************************************************************************
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24
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25 Append log messages to a file. This basic version has no rollover
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26 support, so it just keeps on adding to the file. There's also a
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27 RollingFileAppender that may suit your needs.
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28
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29 *******************************************************************************/
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30
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31 public class FileAppender : Appender
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32 {
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33 private Mask mask;
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34 private Buffer buffer;
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35 private IConduit conduit_;
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36
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37 /***********************************************************************
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38
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39 ***********************************************************************/
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40
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41 protected this ()
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42 {
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43 }
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44
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45 /***********************************************************************
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46
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47 Create a basic FileAppender to a file with the specified
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48 path.
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49
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50 ***********************************************************************/
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51
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52 this (FilePath fp, EventLayout layout = null)
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53 {
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54 // Get a unique fingerprint for this instance
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55 mask = register (fp.toString);
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56
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57 // make it shareable for read
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58 auto style = FileConduit.WriteAppending;
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59 style.share = FileConduit.Share.Read;
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60 setConduit (new FileConduit (fp, style));
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61
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62 setLayout (layout);
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63 }
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64
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65 /***********************************************************************
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66
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67 Create a basic FileAppender to a file with the specified
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68 path, and with the given EventLayout
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69
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70 ***********************************************************************/
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71
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72 this (char[] fp, EventLayout layout = null)
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73 {
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74 this (new FilePath (fp), layout);
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75 }
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76
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77 /***********************************************************************
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78
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79 Return the conduit
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80
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81 ***********************************************************************/
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82
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83 IConduit conduit ()
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84 {
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85 return conduit_;
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86 }
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87
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88 /***********************************************************************
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89
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90 Set the conduit
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91
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92 ***********************************************************************/
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93
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94 protected Buffer setConduit (IConduit conduit)
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95 {
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96 // create a new buffer upon this conduit
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97 conduit_ = conduit;
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98 return (buffer = new Buffer(conduit));
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99 }
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100
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101 /***********************************************************************
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102
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103 Return the fingerprint for this class
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104
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105 ***********************************************************************/
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106
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107 Mask getMask ()
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108 {
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109 return mask;
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110 }
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111
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112 /***********************************************************************
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113
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114 Return the name of this class
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115
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116 ***********************************************************************/
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117
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118 char[] getName ()
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119 {
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120 return this.classinfo.name;
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121 }
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122
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123 /***********************************************************************
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124
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125 Append an event to the output.
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126
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127 ***********************************************************************/
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128
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129 synchronized void append (Event event)
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130 {
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131 auto layout = getLayout;
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132 buffer.append (layout.header (event));
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133 buffer.append (layout.content (event));
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134 buffer.append (layout.footer (event))
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135 .append (FileConst.NewlineString)
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136 .flush ();
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137 }
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138
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139 /***********************************************************************
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140
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141 Close the file associated with this Appender
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142
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143 ***********************************************************************/
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144
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145 synchronized void close ()
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146 {
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147 if (conduit_)
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148 {
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149 conduit_.detach;
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150 conduit_ = null;
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151 }
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152 }
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153 }
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154
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155
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