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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #ifndef LOGHANDLER_HXX
21 : #define LOGHANDLER_HXX
22 :
23 : #include <com/sun/star/logging/XLogFormatter.hpp>
24 : #include <com/sun/star/uno/XComponentContext.hpp>
25 : #include <com/sun/star/logging/LogRecord.hpp>
26 :
27 : #include <comphelper/namedvaluecollection.hxx>
28 : #include <cppuhelper/interfacecontainer.hxx>
29 : #include <rtl/string.hxx>
30 :
31 :
32 : namespace logging
33 : {
34 :
35 :
36 :
37 : //=
38 :
39 0 : class LogHandlerHelper
40 : {
41 : private:
42 : // <attributes>
43 : rtl_TextEncoding m_eEncoding;
44 : sal_Int32 m_nLevel;
45 : ::com::sun::star::uno::Reference< ::com::sun::star::logging::XLogFormatter >
46 : m_xFormatter;
47 : // <//attributes>
48 :
49 : ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >
50 : m_xContext;
51 : ::osl::Mutex& m_rMutex;
52 : ::cppu::OBroadcastHelper& m_rBHelper;
53 : bool m_bInitialized;
54 :
55 : public:
56 : LogHandlerHelper(
57 : const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext >& _rxContext,
58 : ::osl::Mutex& _rMutex,
59 : ::cppu::OBroadcastHelper& _rBHelper
60 : );
61 :
62 : public:
63 0 : bool getIsInitialized() const { return m_bInitialized; }
64 0 : void setIsInitialized() { m_bInitialized = true; }
65 :
66 : bool getEncoding( OUString& _out_rEncoding ) const;
67 : bool setEncoding( const OUString& _rEncoding );
68 :
69 : inline rtl_TextEncoding
70 0 : getTextEncoding() const { return m_eEncoding; }
71 :
72 : inline ::com::sun::star::uno::Reference< ::com::sun::star::logging::XLogFormatter >
73 0 : getFormatter() const { return m_xFormatter; }
74 : inline void
75 0 : setFormatter( const ::com::sun::star::uno::Reference< ::com::sun::star::logging::XLogFormatter >& _rxFormatter )
76 : {
77 0 : m_xFormatter = _rxFormatter;
78 0 : }
79 :
80 : inline sal_Int32
81 0 : getLevel() const { return m_nLevel; }
82 : inline void
83 0 : setLevel( const sal_Int32 _nLevel )
84 : {
85 0 : m_nLevel = _nLevel;
86 0 : }
87 :
88 : /** prepares implementation of an public accessible method of a log handler
89 :
90 : <code>enterMethod</code> does the following things:
91 : <ul><li>It acquires the mutex given in the constructor.</li>
92 : <li>It checks whether the component is already initialized, and throws an exception if not os.</li>
93 : <li>It checks whether the component is already disposed, and throws an exception if not os.</li>
94 : <li>It creates a default formatter (PlainTextFormatter), if no formatter exists at this time.</li>
95 : </ul>
96 : */
97 : void enterMethod();
98 :
99 : /** formats a record for publishing it
100 :
101 : The method first checks whether the records log level is greater or equal our own
102 : log level. If not, <FALSE/> is returned.
103 :
104 : Second, our formatter is used to create a unicode string from the log record. If an error occurs
105 : during this, e.g. if the formatter is <NULL/> or throws an exception during formatting,
106 : <FALSE/> is returned.
107 :
108 : Finally, the unicode string is encoded into a byte string, using our encoding setting. Then,
109 : <TRUE/> is returned.
110 : */
111 : bool formatForPublishing( const ::com::sun::star::logging::LogRecord& _rRecord, OString& _out_rEntry ) const;
112 :
113 : /** retrieves our formatter's heading, encoded with our encoding
114 :
115 : @return <TRUE/> in case of success, <FALSE/> if any error occurred
116 : */
117 : bool getEncodedHead( OString& _out_rHead ) const;
118 :
119 : /** retrieves our formatter's tail, encoded with our encoding
120 :
121 : @return <TRUE/> in case of success, <FALSE/> if any error occurred
122 : */
123 : bool getEncodedTail( OString& _out_rTail ) const;
124 :
125 : /** initializes the instance from a collection of named settings
126 :
127 : The recognized named settings are <code>Encoding</code>, <code>Formatter</code>, and <code>Level</code>,
128 : which initialize the respective attributes.
129 :
130 : Settings which are recognized are remove from the given collection. This allows
131 : the caller to determine whether or not the collection contained any unsupported
132 : items, and react appropriately.
133 :
134 : @throws IllegalArgumentException
135 : if one of the values in the collection is of wrong type.
136 : */
137 : void initFromSettings( const ::comphelper::NamedValueCollection& _rSettings );
138 : };
139 :
140 :
141 : } // namespace logging
142 :
143 :
144 : #endif // LOGHANDLER_HXX
145 :
146 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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