/usr/include/log4cxx/helpers/charsetencoder.h is in liblog4cxx-dev 0.10.0-12.
This file is owned by root:root, with mode 0o644.
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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_HELPERS_CHARSETENCODER_H
#define _LOG4CXX_HELPERS_CHARSETENCODER_H
#include <log4cxx/helpers/objectimpl.h>
#include <log4cxx/helpers/pool.h>
namespace log4cxx
{
namespace helpers {
class ByteBuffer;
class CharsetEncoder;
LOG4CXX_PTR_DEF(CharsetEncoder);
/**
* An engine to transform LogStrings into bytes
* for the specific character set.
*/
class LOG4CXX_EXPORT CharsetEncoder : public ObjectImpl
{
public:
DECLARE_ABSTRACT_LOG4CXX_OBJECT(CharsetEncoder)
BEGIN_LOG4CXX_CAST_MAP()
LOG4CXX_CAST_ENTRY(CharsetEncoder)
END_LOG4CXX_CAST_MAP()
protected:
/**
* Protected constructor.
*/
CharsetEncoder();
public:
/**
* Destructor.
*/
virtual ~CharsetEncoder();
/**
* Get encoder for default charset.
*/
static CharsetEncoderPtr getDefaultEncoder();
/**
* Get encoder for specified character set.
* @param charset the following values should be recognized:
* "US-ASCII", "ISO-8859-1", "UTF-8",
* "UTF-16BE", "UTF-16LE".
* @return encoder.
* @throws IllegalArgumentException if encoding is not recognized.
*/
static CharsetEncoderPtr getEncoder(const LogString& charset);
/**
* Get encoder for UTF-8.
*/
static CharsetEncoderPtr getUTF8Encoder();
/**
* Encodes a string replacing unmappable
* characters with escape sequences.
*
*/
static void encode(CharsetEncoderPtr& enc,
const LogString& src,
LogString::const_iterator& iter,
ByteBuffer& dst);
/**
* Encodes as many characters from the input string as possible
* to the output buffer.
* @param in input string
* @param iter position in string to start.
* @param out output buffer.
* @return APR_SUCCESS unless a character can not be represented in
* the encoding.
*/
virtual log4cxx_status_t encode(const LogString& in,
LogString::const_iterator& iter,
ByteBuffer& out) = 0;
/**
* Resets any internal state.
*/
virtual void reset();
/**
* Flushes the encoder.
*/
virtual void flush(ByteBuffer& out);
/**
* Determines if the return value from encode indicates
* an unconvertable character.
*/
inline static bool isError(log4cxx_status_t stat) {
return (stat != 0);
}
private:
/**
* Private copy constructor.
*/
CharsetEncoder(const CharsetEncoder&);
/**
* Private assignment operator.
*/
CharsetEncoder& operator=(const CharsetEncoder&);
static CharsetEncoder* createDefaultEncoder();
};
} // namespace helpers
} //namespace log4cxx
#endif //_LOG4CXX_HELPERS_CHARSETENCODER_H
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