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/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* Licensed 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.
*
*/
#ifndef _TopicExchange_
#define _TopicExchange_
#include <map>
#include <vector>
#include "qpid/broker/Exchange.h"
#include "qpid/framing/FieldTable.h"
#include "qpid/broker/Message.h"
#include "qpid/concurrent/MonitorImpl.h"
#include "qpid/broker/Queue.h"
namespace qpid {
namespace broker {
/** A vector of string tokens */
class Tokens : public std::vector<std::string> {
public:
Tokens() {};
// Default copy, assign, dtor are sufficient.
/** Tokenize s, provides automatic conversion of string to Tokens */
Tokens(const std::string& s) { operator=(s); }
/** Tokenizing assignment operator s */
Tokens & operator=(const std::string& s);
private:
size_t hash;
};
/**
* Tokens that have been normalized as a pattern and can be matched
* with topic Tokens. Normalized meands all sequences of mixed * and
* # are reduced to a series of * followed by at most one #.
*/
class TopicPattern : public Tokens
{
public:
TopicPattern() {}
// Default copy, assign, dtor are sufficient.
TopicPattern(const Tokens& tokens) { operator=(tokens); }
TopicPattern(const std::string& str) { operator=(str); }
TopicPattern& operator=(const Tokens&);
TopicPattern& operator=(const std::string& str) { return operator=(Tokens(str)); }
/** Match a topic */
bool match(const std::string& topic) { return match(Tokens(topic)); }
bool match(const Tokens& topic) const;
private:
void normalize();
};
class TopicExchange : public virtual Exchange{
typedef std::map<TopicPattern, Queue::vector> BindingMap;
BindingMap bindings;
qpid::concurrent::MonitorImpl lock;
public:
static const std::string typeName;
TopicExchange(const string& name);
virtual std::string getType(){ return typeName; }
virtual void bind(Queue::shared_ptr queue, const string& routingKey, qpid::framing::FieldTable* args);
virtual void unbind(Queue::shared_ptr queue, const string& routingKey, qpid::framing::FieldTable* args);
virtual void route(Deliverable& msg, const string& routingKey, qpid::framing::FieldTable* args);
virtual ~TopicExchange();
};
}
}
#endif
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