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author | Robert Gemmell <robbie@apache.org> | 2015-06-25 10:22:51 +0000 |
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committer | Robert Gemmell <robbie@apache.org> | 2015-06-25 10:22:51 +0000 |
commit | 32ae758bc2e8fd962b66a4ab6341b14009f1907e (patch) | |
tree | 2f4d8174813284a6ea58bb6b7f6520aa92287476 /qpid/cpp/src/qpid/amqp/Decoder.h | |
parent | 116d91ad7825a98af36a869fc751206fbce0c59f (diff) | |
parent | f7e896076143de4572b4f1f67ef0765125f2498d (diff) | |
download | qpid-python-32ae758bc2e8fd962b66a4ab6341b14009f1907e.tar.gz |
NO-JIRA: create branch for qpid-cpp 0.34 RC process
git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/qpid-cpp-0.34-rc@1687469 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'qpid/cpp/src/qpid/amqp/Decoder.h')
-rw-r--r-- | qpid/cpp/src/qpid/amqp/Decoder.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/amqp/Decoder.h b/qpid/cpp/src/qpid/amqp/Decoder.h new file mode 100644 index 0000000000..a78518be2b --- /dev/null +++ b/qpid/cpp/src/qpid/amqp/Decoder.h @@ -0,0 +1,100 @@ +#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*/ |