layout.h

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/*
 * 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_LAYOUT_H
#define _LOG4CXX_LAYOUT_H
 
#include <log4cxx/helpers/object.h>
#include <log4cxx/spi/optionhandler.h>
#include <log4cxx/spi/loggingevent.h>
 
 
namespace LOG4CXX_NS
{
class LOG4CXX_EXPORT Layout :
    public virtual spi::OptionHandler,
    public virtual helpers::Object
{
    public:
        DECLARE_ABSTRACT_LOG4CXX_OBJECT(Layout)
        BEGIN_LOG4CXX_CAST_MAP()
        LOG4CXX_CAST_ENTRY(Layout)
        LOG4CXX_CAST_ENTRY(spi::OptionHandler)
        END_LOG4CXX_CAST_MAP()
 
        virtual ~Layout();

        virtual void format(LogString& output,
            const spi::LoggingEventPtr& event, LOG4CXX_NS::helpers::Pool& pool) const = 0;

        virtual LogString getContentType() const;

        virtual void appendHeader(LogString& output, LOG4CXX_NS::helpers::Pool& p);

        virtual void appendFooter(LogString& output, LOG4CXX_NS::helpers::Pool& p);

        virtual bool ignoresThrowable() const = 0;
 
    protected:
        size_t getFormattedEventCharacterCount() const;
};
LOG4CXX_PTR_DEF(Layout);
}
 
#endif // _LOG4CXX_LAYOUT_H