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Diffstat (limited to 'cpp/lib/broker/TopicExchange.h')
-rw-r--r-- | cpp/lib/broker/TopicExchange.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/cpp/lib/broker/TopicExchange.h b/cpp/lib/broker/TopicExchange.h new file mode 100644 index 0000000000..fa0c86863a --- /dev/null +++ b/cpp/lib/broker/TopicExchange.h @@ -0,0 +1,100 @@ +/* + * + * 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 <BrokerExchange.h> +#include <FieldTable.h> +#include <BrokerMessage.h> +#include <sys/Monitor.h> +#include <BrokerQueue.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::sys::Mutex 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, const qpid::framing::FieldTable* args); + + virtual void unbind(Queue::shared_ptr queue, const string& routingKey, const qpid::framing::FieldTable* args); + + virtual void route(Deliverable& msg, const string& routingKey, const qpid::framing::FieldTable* args); + + virtual ~TopicExchange(); +}; + + + +} +} + +#endif |