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/*
*
* 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.
*
*/
#ifndef _TopicExchange_
#define _TopicExchange_
#include <map>
#include <vector>
#include "BrokerImportExport.h"
#include "Exchange.h"
#include "qpid/framing/FieldTable.h"
#include "qpid/sys/Monitor.h"
#include "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 */
QPID_BROKER_EXTERN Tokens & operator=(const std::string& s);
void key(std::string& key) const;
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); }
QPID_BROKER_EXTERN 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)); }
QPID_BROKER_EXTERN bool match(const Tokens& topic) const;
private:
void normalize();
};
class TopicExchange : public virtual Exchange {
struct BoundKey {
Binding::vector bindingVector;
FedBinding fedBinding;
};
typedef std::map<TopicPattern, BoundKey> BindingMap;
BindingMap bindings;
qpid::sys::RWlock lock;
bool isBound(Queue::shared_ptr queue, TopicPattern& pattern);
public:
static const std::string typeName;
QPID_BROKER_EXTERN TopicExchange(const string& name,
management::Manageable* parent = 0, Broker* broker = 0);
QPID_BROKER_EXTERN TopicExchange(const string& _name,
bool _durable,
const qpid::framing::FieldTable& _args,
management::Manageable* parent = 0, Broker* broker = 0);
virtual std::string getType() const { return typeName; }
QPID_BROKER_EXTERN virtual bool bind(Queue::shared_ptr queue,
const string& routingKey,
const qpid::framing::FieldTable* args);
virtual bool unbind(Queue::shared_ptr queue, const string& routingKey, const qpid::framing::FieldTable* args);
QPID_BROKER_EXTERN virtual void route(Deliverable& msg,
const string& routingKey,
const qpid::framing::FieldTable* args);
QPID_BROKER_EXTERN virtual bool isBound(Queue::shared_ptr queue,
const string* const routingKey,
const qpid::framing::FieldTable* const args);
QPID_BROKER_EXTERN virtual ~TopicExchange();
virtual bool supportsDynamicBinding() { return true; }
};
}
}
#endif
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