Apache Qpid - AMQP Messaging for Java JMS, C++, Python, Ruby, and .NET | Apache Qpid Documentation |
00001 #ifndef QPID_FRAMING_AMQBODY_H 00002 #define QPID_FRAMING_AMQBODY_H 00003 00004 /* 00005 * 00006 * Licensed to the Apache Software Foundation (ASF) under one 00007 * or more contributor license agreements. See the NOTICE file 00008 * distributed with this work for additional information 00009 * regarding copyright ownership. The ASF licenses this file 00010 * to you under the Apache License, Version 2.0 (the 00011 * "License"); you may not use this file except in compliance 00012 * with the License. You may obtain a copy of the License at 00013 * 00014 * http://www.apache.org/licenses/LICENSE-2.0 00015 * 00016 * Unless required by applicable law or agreed to in writing, 00017 * software distributed under the License is distributed on an 00018 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 00019 * KIND, either express or implied. See the License for the 00020 * specific language governing permissions and limitations 00021 * under the License. 00022 * 00023 */ 00024 #include "qpid/framing/amqp_types.h" 00025 #include "qpid/RefCounted.h" 00026 #include "qpid/framing/BodyFactory.h" 00027 #include <boost/intrusive_ptr.hpp> 00028 #include <ostream> 00029 00030 namespace qpid { 00031 namespace framing { 00032 00033 class Buffer; 00034 00035 class AMQMethodBody; 00036 class AMQHeaderBody; 00037 class AMQContentBody; 00038 class AMQHeartbeatBody; 00039 00040 struct AMQBodyConstVisitor { 00041 virtual ~AMQBodyConstVisitor() {} 00042 virtual void visit(const AMQHeaderBody&) = 0; 00043 virtual void visit(const AMQContentBody&) = 0; 00044 virtual void visit(const AMQHeartbeatBody&) = 0; 00045 virtual void visit(const AMQMethodBody&) = 0; 00046 }; 00047 00048 class AMQBody : public RefCounted { 00049 public: 00050 AMQBody() {} 00051 virtual ~AMQBody(); 00052 00053 // Make AMQBody copyable even though RefCounted. 00054 AMQBody(const AMQBody&) : RefCounted() {} 00055 AMQBody& operator=(const AMQBody&) { return *this; } 00056 00057 virtual uint8_t type() const = 0; 00058 00059 virtual void encode(Buffer& buffer) const = 0; 00060 virtual void decode(Buffer& buffer, uint32_t=0) = 0; 00061 virtual uint32_t encodedSize() const = 0; 00062 00063 virtual void print(std::ostream& out) const = 0; 00064 virtual void accept(AMQBodyConstVisitor&) const = 0; 00065 00066 virtual AMQMethodBody* getMethod() { return 0; } 00067 virtual const AMQMethodBody* getMethod() const { return 0; } 00068 00070 static bool match(const AMQBody& , const AMQBody& ); 00071 virtual boost::intrusive_ptr<AMQBody> clone() const = 0; 00072 }; 00073 00074 std::ostream& operator<<(std::ostream& out, const AMQBody& body) ; 00075 00076 enum BodyTypes { 00077 METHOD_BODY = 1, 00078 HEADER_BODY = 2, 00079 CONTENT_BODY = 3, 00080 HEARTBEAT_BODY = 8 00081 }; 00082 00083 }} // namespace qpid::framing 00084 00085 #endif