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#ifndef QPID_AMQP_DECODER_H
#define QPID_AMQP_DECODER_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 "qpid/CommonImportExport.h"
#include <map>
#include <string>
#include <stddef.h>
namespace qpid {
namespace types {
class Uuid;
class Variant;
}
namespace amqp {
struct CharSequence;
struct Constructor;
struct Descriptor;
class Reader;
/**
* Class to assist in decoding an AMQP encoded data-stream.
*/
class Decoder
{
public:
QPID_COMMON_EXTERN Decoder(const char*, size_t);
QPID_COMMON_EXTERN size_t available();
QPID_COMMON_EXTERN uint8_t readCode();
QPID_COMMON_EXTERN bool readBoolean();
QPID_COMMON_EXTERN uint8_t readUByte();
QPID_COMMON_EXTERN uint16_t readUShort();
QPID_COMMON_EXTERN uint32_t readUInt();
QPID_COMMON_EXTERN uint64_t readULong();
QPID_COMMON_EXTERN int8_t readByte();
QPID_COMMON_EXTERN int16_t readShort();
QPID_COMMON_EXTERN int32_t readInt();
QPID_COMMON_EXTERN int64_t readLong();
QPID_COMMON_EXTERN float readFloat();
QPID_COMMON_EXTERN double readDouble();
QPID_COMMON_EXTERN qpid::types::Uuid readUuid();
QPID_COMMON_EXTERN CharSequence readSequence8();
QPID_COMMON_EXTERN CharSequence readSequence32();
QPID_COMMON_EXTERN Descriptor readDescriptor();
QPID_COMMON_EXTERN void read(Reader& reader);
QPID_COMMON_EXTERN void readMap(std::map<std::string, qpid::types::Variant>&);
QPID_COMMON_EXTERN std::map<std::string, qpid::types::Variant> readMap();
QPID_COMMON_EXTERN void advance(size_t);
QPID_COMMON_EXTERN size_t getPosition() const;
QPID_COMMON_EXTERN void resetSize(size_t size);
QPID_COMMON_EXTERN size_t getSize() const;
private:
const char* const start;
size_t size;
size_t position;
size_t current;
void readOne(Reader& reader);
void readValue(Reader& reader, uint8_t code, const Descriptor* descriptor);
void readList(Reader& reader, uint32_t size, uint32_t count, const Descriptor* descriptor);
void readMap(Reader& reader, uint32_t size, uint32_t count, const Descriptor* descriptor);
void readArray(Reader& reader, uint32_t size, uint32_t count, const Descriptor* descriptor);
void readList8(Reader& reader, const Descriptor* descriptor);
void readList32(Reader& reader, const Descriptor* descriptor);
void readMap8(Reader& reader, const Descriptor* descriptor);
void readMap32(Reader& reader, const Descriptor* descriptor);
void readArray8(Reader& reader, const Descriptor* descriptor);
void readArray32(Reader& reader, const Descriptor* descriptor);
CharSequence readRawUuid();
Constructor readConstructor();
const char* data();
CharSequence getCurrent(size_t remaining) const;
};
}} // namespace qpid::amqp
#endif /*!QPID_AMQP_DECODER_H*/
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