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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.
*
*/
#include "MemberHandler.h"
#include "Cluster.h"
#include "DumpClient.h"
#include "qpid/log/Statement.h"
#include "qpid/framing/ClusterUpdateBody.h"
#include "qpid/framing/enum.h"
namespace qpid {
namespace cluster {
using namespace sys;
using namespace framing;
MemberHandler::MemberHandler(Cluster& c) : ClusterHandler(c) {}
MemberHandler::~MemberHandler() {
if (dumpThread.id())
dumpThread.join(); // Join the last dumpthread.
}
void MemberHandler::configChange(
cpg_address */*current*/, int /*nCurrent*/,
cpg_address */*left*/, int /*nLeft*/,
cpg_address */*joined*/, int nJoined)
{
if (nJoined && cluster.map.sendUpdate(cluster.self)) // New members need update
cluster.mcastControl(cluster.map.toControl(), 0);
}
void MemberHandler::deliver(Event& e) {
cluster.connectionEventQueue.push(e);
}
void MemberHandler::update(const MemberId&, const framing::FieldTable& , uint64_t) {}
void MemberHandler::dumpRequest(const MemberId& dumpee, const std::string& urlStr) {
if (cluster.map.dumper) return; // dump in progress, ignore request.
cluster.map.dumper = cluster.map.first();
if (cluster.map.dumper != cluster.self) return;
QPID_LOG(info, cluster.self << " sending state dump to " << dumpee);
assert(!cluster.connectionEventQueue.isStopped()); // Not currently stalled.
cluster.stall();
if (dumpThread.id())
dumpThread.join(); // Join the previous dumpthread.
dumpThread = Thread(new DumpClient(Url(urlStr), cluster,
boost::bind(&MemberHandler::dumpSent, this),
boost::bind(&MemberHandler::dumpError, this, _1)));
}
void MemberHandler::ready(const MemberId& id, const std::string& url) {
cluster.map.ready(id, Url(url));
}
void MemberHandler::dumpSent() {
QPID_LOG(debug, "Finished sending state dump.");
Mutex::ScopedLock l(cluster.lock);
cluster.ready();
}
void MemberHandler::dumpError(const std::exception& e) {
QPID_LOG(error, "Error sending state dump from " << cluster.self << ": " << e.what());
dumpSent();
}
void MemberHandler::insert(const boost::intrusive_ptr<Connection>& c) {
if (c->isCatchUp()) // Not allowed in member mode
c->getBrokerConnection().close(execution::ERROR_CODE_ILLEGAL_STATE, "Not in catch-up mode.");
else
cluster.connections[c->getId()] = c;
}
void MemberHandler::catchUpClosed(const boost::intrusive_ptr<Connection>& c) {
QPID_LOG(warning, "Catch-up connection " << c << " closed in member mode");
assert(0);
}
}} // namespace qpid::cluster
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