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#ifndef QPID_AMQP_MAPSIZECALCULATOR_H
#define QPID_AMQP_MAPSIZECALCULATOR_H
/*
*
* 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.
*
*/
#include "MapHandler.h"
#include <cstring>
namespace qpid {
namespace amqp {
struct Descriptor;
/**
* Utility to calculate the encoded size for map data
*/
class MapSizeCalculator : public MapHandler
{
public:
MapSizeCalculator();
void handleVoid(const CharSequence& key);
void handleBool(const CharSequence& key, bool value);
void handleUint8(const CharSequence& key, uint8_t value);
void handleUint16(const CharSequence& key, uint16_t value);
void handleUint32(const CharSequence& key, uint32_t value);
void handleUint64(const CharSequence& key, uint64_t value);
void handleInt8(const CharSequence& key, int8_t value);
void handleInt16(const CharSequence& key, int16_t value);
void handleInt32(const CharSequence& key, int32_t value);
void handleInt64(const CharSequence& key, int64_t value);
void handleFloat(const CharSequence& key, float value);
void handleDouble(const CharSequence& key, double value);
void handleString(const CharSequence& key, const CharSequence& value, const CharSequence& encoding);
/**
* @returns the encoded size of the map entries (i.e. does not
* include the count field, typecode or any other metadata for the
* map as a whole)
*/
size_t getSize() const;
size_t getCount() const;
/**
* @returns the total encoded size for a map containing the
* handled values (i.e. including the metadata for the map as a
* whole)
*/
size_t getTotalSizeRequired(const Descriptor* d=0) const;
private:
size_t size;
size_t count;
void handleKey(const CharSequence& key);
static size_t getEncodedSize(const CharSequence&);
};
}} // namespace qpid::amqp
#endif /*!QPID_AMQP_MAPSIZECALCULATOR_H*/
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