diff options
Diffstat (limited to 'qpid/cpp/src/qpid/cluster/FailoverExchange.cpp')
-rw-r--r-- | qpid/cpp/src/qpid/cluster/FailoverExchange.cpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/qpid/cpp/src/qpid/cluster/FailoverExchange.cpp b/qpid/cpp/src/qpid/cluster/FailoverExchange.cpp new file mode 100644 index 0000000000..84232dac1b --- /dev/null +++ b/qpid/cpp/src/qpid/cluster/FailoverExchange.cpp @@ -0,0 +1,104 @@ +/* + * + * 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 "qpid/cluster/FailoverExchange.h" +#include "qpid/broker/Message.h" +#include "qpid/broker/DeliverableMessage.h" +#include "qpid/broker/Queue.h" +#include "qpid/framing/MessageProperties.h" +#include "qpid/framing/AMQFrame.h" +#include "qpid/framing/AMQHeaderBody.h" +#include "qpid/framing/MessageTransferBody.h" +#include "qpid/log/Statement.h" +#include "qpid/framing/Array.h" +#include <boost/bind.hpp> +#include <algorithm> + +namespace qpid { +namespace cluster { +using namespace std; + +using namespace broker; +using namespace framing; + +const string FailoverExchange::typeName("amq.failover"); + +FailoverExchange::FailoverExchange(management::Manageable* parent, Broker* b) : Exchange(typeName, parent, b ) { + if (mgmtExchange != 0) + mgmtExchange->set_type(typeName); +} + +void FailoverExchange::setUrls(const vector<Url>& u) { + Lock l(lock); + urls = u; +} + +void FailoverExchange::updateUrls(const vector<Url>& u) { + Lock l(lock); + urls=u; + if (urls.empty()) return; + std::for_each(queues.begin(), queues.end(), + boost::bind(&FailoverExchange::sendUpdate, this, _1)); +} + +string FailoverExchange::getType() const { return typeName; } + +bool FailoverExchange::bind(Queue::shared_ptr queue, const string&, const framing::FieldTable*) { + Lock l(lock); + sendUpdate(queue); + return queues.insert(queue).second; +} + +bool FailoverExchange::unbind(Queue::shared_ptr queue, const string&, const framing::FieldTable*) { + Lock l(lock); + return queues.erase(queue); +} + +bool FailoverExchange::isBound(Queue::shared_ptr queue, const string* const, const framing::FieldTable*) { + Lock l(lock); + return queues.find(queue) != queues.end(); +} + +void FailoverExchange::route(Deliverable&, const string& , const framing::FieldTable* ) { + QPID_LOG(warning, "Message received by exchange " << typeName << " ignoring"); +} + +void FailoverExchange::sendUpdate(const Queue::shared_ptr& queue) { + // Called with lock held. + if (urls.empty()) return; + framing::Array array(0x95); + for (Urls::const_iterator i = urls.begin(); i != urls.end(); ++i) + array.add(boost::shared_ptr<Str16Value>(new Str16Value(i->str()))); + const ProtocolVersion v; + boost::intrusive_ptr<Message> msg(new Message); + AMQFrame command(MessageTransferBody(v, typeName, 1, 0)); + command.setLastSegment(false); + msg->getFrames().append(command); + AMQHeaderBody header; + header.get<MessageProperties>(true)->setContentLength(0); + header.get<MessageProperties>(true)->getApplicationHeaders().setArray(typeName, array); + AMQFrame headerFrame(header); + headerFrame.setFirstSegment(false); + msg->getFrames().append(headerFrame); + DeliverableMessage(msg).deliverTo(queue); +} + + +}} // namespace cluster |