/usr/include/log4cxx/appender.h is in liblog4cxx-dev 0.10.0-10ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 | /*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _LOG4CXX_APPENDER_H
#define _LOG4CXX_APPENDER_H
#if defined(_MSC_VER)
#pragma warning ( push )
#pragma warning ( disable: 4231 4251 4275 4786 )
#endif
#include <log4cxx/spi/optionhandler.h>
#include <log4cxx/helpers/objectptr.h>
#include <log4cxx/helpers/object.h>
#include <vector>
namespace log4cxx
{
// Forward declarations
namespace spi
{
class LoggingEvent;
typedef helpers::ObjectPtrT<LoggingEvent> LoggingEventPtr;
class Filter;
typedef helpers::ObjectPtrT<Filter> FilterPtr;
class ErrorHandler;
typedef log4cxx::helpers::ObjectPtrT<ErrorHandler> ErrorHandlerPtr;
}
class Layout;
typedef log4cxx::helpers::ObjectPtrT<Layout> LayoutPtr;
/**
Implement this interface for your own strategies for outputting log
statements.
*/
class LOG4CXX_EXPORT Appender :
public virtual spi::OptionHandler
{
public:
DECLARE_ABSTRACT_LOG4CXX_OBJECT(Appender)
virtual ~Appender() {}
/**
Add a filter to the end of the filter list.
*/
virtual void addFilter(const spi::FilterPtr& newFilter) = 0;
/**
Returns the head Filter. The Filters are organized in a linked list
and so all Filters on this Appender are available through the result.
@return the head Filter or null, if no Filters are present
*/
virtual spi::FilterPtr getFilter() const = 0;
/**
Clear the list of filters by removing all the filters in it.
*/
virtual void clearFilters() = 0;
/**
Release any resources allocated within the appender such as file
handles, network connections, etc.
<p>It is a programming error to append to a closed appender.
*/
virtual void close() = 0;
/**
Log in <code>Appender</code> specific way. When appropriate,
Loggers will call the <code>doAppend</code> method of appender
implementations in order to log.
*/
virtual void doAppend(const spi::LoggingEventPtr& event,
log4cxx::helpers::Pool& pool) = 0;
/**
Get the name of this appender. The name uniquely identifies the
appender.
*/
virtual LogString getName() const = 0;
/**
Set the Layout for this appender.
*/
virtual void setLayout(const LayoutPtr& layout) = 0;
/**
Returns this appenders layout.
*/
virtual LayoutPtr getLayout() const = 0;
/**
Set the name of this appender. The name is used by other
components to identify this appender.
*/
virtual void setName(const LogString& name) = 0;
/**
Configurators call this method to determine if the appender
requires a layout. If this method returns <code>true</code>,
meaning that layout is required, then the configurator will
configure an layout using the configuration information at its
disposal. If this method returns <code>false</code>, meaning that
a layout is not required, then layout configuration will be
skipped even if there is available layout configuration
information at the disposal of the configurator..
<p>In the rather exceptional case, where the appender
implementation admits a layout but can also work without it, then
the appender should return <code>true</code>.
*/
virtual bool requiresLayout() const = 0;
};
LOG4CXX_PTR_DEF(Appender);
LOG4CXX_LIST_DEF(AppenderList, AppenderPtr);
}
#if defined(_MSC_VER)
#pragma warning ( pop )
#endif
#endif //_LOG4CXX_APPENDER_H
|