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#ifndef QPID_AMQP_0_10_UNKNOWNTYPE_H
#define QPID_AMQP_0_10_UNKNOWNTYPE_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 "qpid/sys/IntegerTypes.h"
#include <vector>
#include <iosfwd>
namespace qpid {
namespace amqp_0_10 {
/** Encode/decode an unknown type based on typecode. */
class UnknownType {
public:
UnknownType(uint8_t code=0);
uint8_t getCode() const { return code; }
/** Size of fixed type or 0 if not fixed/0-length. -1 invalid */
int fixed() const;
/** Bytes in size type for variable width. -1 invalid */
int variable() const;
typedef std::vector<char>::const_iterator const_iterator;
const_iterator begin() const { return data.begin(); }
const_iterator end() const { return data.end(); }
size_t size() const { return data.size(); }
template <class S> void serialize(S& s) { s.split(*this); }
template <class S> void encode(S& s) const;
template <class S> void decode(S& s);
private:
uint8_t code;
struct Width { int fixed; int variable; };
static Width WidthTable[16];
std::vector<char> data;
};
template <class S> void UnknownType::encode(S& s) const {
switch (variable()) {
case 0: break;
case 1: s(uint8_t(data.size())); break;
case 2: s(uint16_t(data.size())); break;
case 4: s(uint32_t(data.size())); break;
}
s(data.begin(), data.end());
}
template <class S> void UnknownType::decode(S& s) {
uint32_t s8;
uint32_t s16;
uint32_t s32;
switch (variable()) {
case 0: break;
case 1: s(s8); data.resize(s8); break;
case 2: s(s16); data.resize(s16); break;
case 4: s(s32); data.resize(s32); break;
}
s(data.begin(), data.end());
}
inline uint8_t codeFor(const UnknownType& u) { return u.getCode(); }
std::ostream& operator<<(std::ostream&, const UnknownType&);
}} // namespace qpid::amqp_0_10
#endif /*!QPID_AMQP_0_10_UNKNOWNTYPE_H*/
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