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Diffstat (limited to 'extensions/source/logging/loghandler.hxx')
| -rw-r--r-- | extensions/source/logging/loghandler.hxx | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/extensions/source/logging/loghandler.hxx b/extensions/source/logging/loghandler.hxx new file mode 100644 index 0000000000..02f4fb7737 --- /dev/null +++ b/extensions/source/logging/loghandler.hxx @@ -0,0 +1,142 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * 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 . + */ + +#pragma once + +#include <sal/config.h> + +#include <string_view> + +#include <com/sun/star/logging/XLogFormatter.hpp> +#include <com/sun/star/uno/XComponentContext.hpp> +#include <com/sun/star/logging/LogRecord.hpp> + +#include <comphelper/namedvaluecollection.hxx> +#include <cppuhelper/interfacecontainer.hxx> +#include <rtl/string.hxx> + + +namespace logging +{ + + class LogHandlerHelper + { + private: + // <attributes> + rtl_TextEncoding m_eEncoding; + sal_Int32 m_nLevel; + css::uno::Reference< css::logging::XLogFormatter > + m_xFormatter; + // <//attributes> + + css::uno::Reference< css::uno::XComponentContext > + m_xContext; + ::osl::Mutex& m_rMutex; + ::cppu::OBroadcastHelper& m_rBHelper; + bool m_bInitialized; + + public: + LogHandlerHelper( + const css::uno::Reference< css::uno::XComponentContext >& _rxContext, + ::osl::Mutex& _rMutex, + ::cppu::OBroadcastHelper& _rBHelper + ); + + public: + void setIsInitialized() { m_bInitialized = true; } + + bool getEncoding( OUString& _out_rEncoding ) const; + bool setEncoding( std::u16string_view _rEncoding ); + + rtl_TextEncoding + getTextEncoding() const { return m_eEncoding; } + + const css::uno::Reference< css::logging::XLogFormatter >& + getFormatter() const { return m_xFormatter; } + void + setFormatter( const css::uno::Reference< css::logging::XLogFormatter >& _rxFormatter ) + { + m_xFormatter = _rxFormatter; + } + + sal_Int32 + getLevel() const { return m_nLevel; } + void + setLevel( const sal_Int32 _nLevel ) + { + m_nLevel = _nLevel; + } + + /** prepares implementation of a public accessible method of a log handler + + <code>enterMethod</code> does the following things: + <ul><li>It acquires the mutex given in the constructor.</li> + <li>It checks whether the component is already initialized, and throws an exception if not os.</li> + <li>It checks whether the component is already disposed, and throws an exception if not os.</li> + <li>It creates a default formatter (PlainTextFormatter), if no formatter exists at this time.</li> + </ul> + */ + void enterMethod(); + + /** formats a record for publishing it + + The method first checks whether the records log level is greater or equal our own + log level. If not, <FALSE/> is returned. + + Second, our formatter is used to create a unicode string from the log record. If an error occurs + during this, e.g. if the formatter is <NULL/> or throws an exception during formatting, + <FALSE/> is returned. + + Finally, the unicode string is encoded into a byte string, using our encoding setting. Then, + <TRUE/> is returned. + */ + bool formatForPublishing( const css::logging::LogRecord& _rRecord, OString& _out_rEntry ) const; + + /** retrieves our formatter's heading, encoded with our encoding + + @return <TRUE/> in case of success, <FALSE/> if any error occurred + */ + bool getEncodedHead( OString& _out_rHead ) const; + + /** retrieves our formatter's tail, encoded with our encoding + + @return <TRUE/> in case of success, <FALSE/> if any error occurred + */ + bool getEncodedTail( OString& _out_rTail ) const; + + /** initializes the instance from a collection of named settings + + The recognized named settings are <code>Encoding</code>, <code>Formatter</code>, and <code>Level</code>, + which initialize the respective attributes. + + Settings which are recognized are remove from the given collection. This allows + the caller to determine whether or not the collection contained any unsupported + items, and react appropriately. + + @throws IllegalArgumentException + if one of the values in the collection is of wrong type. + */ + void initFromSettings( const ::comphelper::NamedValueCollection& _rSettings ); + }; + + +} // namespace logging + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |