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Diffstat (limited to 'qpid/cpp/src/qpid/broker/MessageInterceptor.h')
-rw-r--r-- | qpid/cpp/src/qpid/broker/MessageInterceptor.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/broker/MessageInterceptor.h b/qpid/cpp/src/qpid/broker/MessageInterceptor.h new file mode 100644 index 0000000000..3ada86b6f7 --- /dev/null +++ b/qpid/cpp/src/qpid/broker/MessageInterceptor.h @@ -0,0 +1,58 @@ +#ifndef QPID_BROKER_MESSAGEINTERCEPTOR_H +#define QPID_BROKER_MESSAGEINTERCEPTOR_H + +/* + * + * 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. + * + */ + +#include "Observers.h" + +namespace qpid { +namespace broker { + +class Message; + +/** + * Interface for classes that want to modify a message as it is processed by the queue. + */ +class MessageInterceptor +{ + public: + virtual ~MessageInterceptor() {} + + /** Modify a message before it is recorded in durable store */ + virtual void record(Message&) {} + /** Modify a message as it is being published onto the queue. */ + virtual void publish(Message&) {} +}; + +class MessageInterceptors : public Observers<MessageInterceptor> { + public: + void record(Message& m) { + each(boost::bind(&MessageInterceptor::record, _1, boost::ref(m))); + } + void publish(Message& m) { + each(boost::bind(&MessageInterceptor::publish, _1, boost::ref(m))); + } +}; + +}} // namespace qpid::broker + +#endif /*!QPID_BROKER_MESSAGEINTERCEPTOR_H*/ |