| /* |
| * |
| * 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 "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::TYPE_NAME("amq.failover"); |
| |
| FailoverExchange::FailoverExchange(management::Manageable* parent) : Exchange(TYPE_NAME, parent) { |
| if (mgmtExchange != 0) |
| mgmtExchange->set_type(TYPE_NAME); |
| } |
| |
| |
| void FailoverExchange::setUrls(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 TYPE_NAME; } |
| |
| 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 " << TYPE_NAME << " ignoring"); |
| } |
| |
| void FailoverExchange::sendUpdate(const Queue::shared_ptr& queue) { |
| // Called with lock held. |
| if (urls.empty()) return; |
| framing::Array array(0x95); // FIXME aconway 2008-10-06: Array is unusable like this. Need type constants or better mapping. |
| 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, TYPE_NAME, 1, 0)); |
| command.setLastSegment(false); |
| msg->getFrames().append(command); |
| AMQHeaderBody header; |
| header.get<MessageProperties>(true)->setContentLength(0); |
| header.get<MessageProperties>(true)->getApplicationHeaders().setArray(TYPE_NAME, array); |
| AMQFrame headerFrame(header); |
| headerFrame.setFirstSegment(false); |
| msg->getFrames().append(headerFrame); |
| DeliverableMessage(msg).deliverTo(queue); |
| } |
| |
| }} // namespace cluster |