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#ifndef QPID_CLUSTER_CLUSTERMAP_H
#define QPID_CLUSTER_CLUSTERMAP_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 "types.h"
#include "qpid/framing/ClusterUpdateBody.h"
#include "qpid/Url.h"
#include <boost/function.hpp>
#include <vector>
#include <deque>
#include <map>
#include <iosfwd>
namespace qpid {
namespace cluster {
// FIXME aconway 2008-09-15: rename cluster status?
/**
* Map of established cluster members and brain-dumps in progress.
* A dumper is an established member that is sending catch-up data.
* A dumpee is an aspiring member that is receiving catch-up data.
*/
class ClusterMap {
public:
typedef std::map<MemberId, Url> Members;
Members members;
MemberId dumper;
ClusterMap();
/** First member of the cluster in ID order, gets to perform one-off tasks. */
MemberId first() const;
/** Update for members leaving. */
void left(const cpg_address* addrs, size_t size);
/** Convert map contents to a cluster update body. */
framing::ClusterUpdateBody toControl() const;
/** Add a new member. */
void add(const MemberId& id, const Url& url);
/** Apply update delivered from clsuter. */
void update(const framing::FieldTable& members, uint64_t dumper);
bool isMember(const MemberId& id) const { return members.find(id) != members.end(); }
bool sendUpdate(const MemberId& id) const; // True if id should send an update.
std::vector<Url> memberUrls() const;
size_t size() const { return members.size(); }
private:
friend std::ostream& operator<<(std::ostream&, const ClusterMap&);
friend std::ostream& operator<<(std::ostream& o, const ClusterMap::Members::value_type& mv);
};
}} // namespace qpid::cluster
#endif /*!QPID_CLUSTER_CLUSTERMAP_H*/
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