1 | // |
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2 | // FormattingChannel.h |
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3 | // |
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4 | // $Id: //poco/1.3/Foundation/include/Poco/FormattingChannel.h#1 $ |
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5 | // |
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6 | // Library: Foundation |
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7 | // Package: Logging |
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8 | // Module: Formatter |
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9 | // |
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10 | // Definition of the FormattingChannel class. |
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11 | // |
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12 | // Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH. |
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13 | // and Contributors. |
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14 | // |
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15 | // Permission is hereby granted, free of charge, to any person or organization |
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16 | // obtaining a copy of the software and accompanying documentation covered by |
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17 | // this license (the "Software") to use, reproduce, display, distribute, |
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18 | // execute, and transmit the Software, and to prepare derivative works of the |
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19 | // Software, and to permit third-parties to whom the Software is furnished to |
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20 | // do so, all subject to the following: |
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21 | // |
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22 | // The copyright notices in the Software and this entire statement, including |
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23 | // the above license grant, this restriction and the following disclaimer, |
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24 | // must be included in all copies of the Software, in whole or in part, and |
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25 | // all derivative works of the Software, unless such copies or derivative |
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26 | // works are solely in the form of machine-executable object code generated by |
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27 | // a source language processor. |
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28 | // |
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29 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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30 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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31 | // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT |
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32 | // SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE |
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33 | // FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, |
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34 | // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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35 | // DEALINGS IN THE SOFTWARE. |
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36 | // |
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37 | |
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38 | |
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39 | #ifndef Foundation_FormattingChannel_INCLUDED |
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40 | #define Foundation_FormattingChannel_INCLUDED |
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41 | |
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42 | |
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43 | #include "Poco/Foundation.h" |
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44 | #include "Poco/Channel.h" |
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45 | |
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46 | |
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47 | namespace Poco { |
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48 | |
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49 | |
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50 | class Formatter; |
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51 | |
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52 | |
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53 | class Foundation_API FormattingChannel: public Channel |
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54 | /// The FormattingChannel is a filter channel that routes |
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55 | /// a Message through a Formatter before passing it on |
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56 | /// to the destination channel. |
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57 | { |
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58 | public: |
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59 | FormattingChannel(); |
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60 | /// Creates a FormattingChannel. |
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61 | |
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62 | FormattingChannel(Formatter* pFormatter); |
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63 | /// Creates a FormattingChannel and attaches a Formatter. |
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64 | |
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65 | FormattingChannel(Formatter* pFormatter, Channel* pChannel); |
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66 | /// Creates a FormattingChannel and attaches a Formatter |
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67 | /// and a Channel. |
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68 | |
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69 | void setFormatter(Formatter* pFormatter); |
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70 | /// Sets the Formatter used to format the messages |
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71 | /// before they are passed on. If null, the message |
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72 | /// is passed on unmodified. |
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73 | |
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74 | Formatter* getFormatter() const; |
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75 | /// Returns the Formatter used to format messages, |
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76 | /// which may be null. |
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77 | |
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78 | void setChannel(Channel* pChannel); |
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79 | /// Sets the destination channel to which the formatted |
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80 | /// messages are passed on. |
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81 | |
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82 | Channel* getChannel() const; |
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83 | /// Returns the channel to which the formatted |
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84 | /// messages are passed on. |
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85 | |
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86 | void log(const Message& msg); |
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87 | /// Formats the given Message using the Formatter and |
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88 | /// passes the formatted message on to the destination |
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89 | /// Channel. |
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90 | |
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91 | void setProperty(const std::string& name, const std::string& value); |
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92 | /// Sets or changes a configuration property. |
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93 | /// |
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94 | /// Only the "channel" and "formatter" properties are supported, which allow |
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95 | /// setting the target channel and formatter, respectively, via the LoggingRegistry. |
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96 | /// The "channel" and "formatter" properties are set-only. |
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97 | /// |
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98 | /// Unsupported properties are passed to the attached Channel. |
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99 | |
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100 | void open(); |
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101 | /// Opens the attached channel. |
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102 | |
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103 | void close(); |
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104 | /// Closes the attached channel. |
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105 | |
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106 | protected: |
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107 | ~FormattingChannel(); |
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108 | |
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109 | private: |
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110 | Formatter* _pFormatter; |
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111 | Channel* _pChannel; |
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112 | }; |
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113 | |
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114 | |
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115 | } // namespace Poco |
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116 | |
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117 | |
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118 | #endif // Foundation_FormattingChannel_INCLUDED |
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