/home/aconway/svn/qpid/cpp/src/qpid/broker/TopicExchange.h

00001 /*
00002  *
00003  * Licensed to the Apache Software Foundation (ASF) under one
00004  * or more contributor license agreements.  See the NOTICE file
00005  * distributed with this work for additional information
00006  * regarding copyright ownership.  The ASF licenses this file
00007  * to you under the Apache License, Version 2.0 (the
00008  * "License"); you may not use this file except in compliance
00009  * with the License.  You may obtain a copy of the License at
00010  * 
00011  *   http://www.apache.org/licenses/LICENSE-2.0
00012  * 
00013  * Unless required by applicable law or agreed to in writing,
00014  * software distributed under the License is distributed on an
00015  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
00016  * KIND, either express or implied.  See the License for the
00017  * specific language governing permissions and limitations
00018  * under the License.
00019  *
00020  */
00021 #ifndef _TopicExchange_
00022 #define _TopicExchange_
00023 
00024 #include <map>
00025 #include <vector>
00026 #include "BrokerExchange.h"
00027 #include "qpid/framing/FieldTable.h"
00028 #include "BrokerMessage.h"
00029 #include "qpid/sys/Monitor.h"
00030 #include "BrokerQueue.h"
00031 
00032 namespace qpid {
00033 namespace broker {
00034 
00036 class Tokens : public std::vector<std::string> {
00037   public:
00038     Tokens() {};
00039     // Default copy, assign, dtor are sufficient.
00040 
00042     Tokens(const std::string& s) { operator=(s); }
00044     Tokens & operator=(const std::string& s);
00045     
00046   private:
00047     size_t hash;
00048 };
00049 
00050         
00056 class TopicPattern : public Tokens
00057 {
00058   public:
00059     TopicPattern() {}
00060     // Default copy, assign, dtor are sufficient.
00061     TopicPattern(const Tokens& tokens) { operator=(tokens); }
00062     TopicPattern(const std::string& str) { operator=(str); }
00063     TopicPattern& operator=(const Tokens&);
00064     TopicPattern& operator=(const std::string& str) { return operator=(Tokens(str)); }
00065     
00067     bool match(const std::string& topic) { return match(Tokens(topic)); }
00068     bool match(const Tokens& topic) const;
00069 
00070   private:
00071     void normalize();
00072 };
00073 
00074 class TopicExchange : public virtual Exchange{
00075     typedef std::map<TopicPattern, Queue::vector> BindingMap;
00076     BindingMap bindings;
00077     qpid::sys::Mutex lock;
00078 
00079   public:
00080     static const std::string typeName;
00081 
00082     TopicExchange(const string& name);
00083 
00084     virtual std::string getType(){ return typeName; }            
00085         
00086     virtual void bind(Queue::shared_ptr queue, const string& routingKey, const qpid::framing::FieldTable* args);
00087 
00088     virtual void unbind(Queue::shared_ptr queue, const string& routingKey, const qpid::framing::FieldTable* args);
00089 
00090     virtual void route(Deliverable& msg, const string& routingKey, const qpid::framing::FieldTable* args);
00091 
00092     virtual ~TopicExchange();
00093 };
00094 
00095 
00096 
00097 }
00098 }
00099 
00100 #endif

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