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Cluster.h
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Cluster.h
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/* -*- C++ -*-; c-basic-offset: 4; indent-tabs-mode: nil */
/*!
* @file Cluster.h
* @brief Interface definition file for Cluster
*/
/* Copyright (c) 2009 Webroot Software, Inc.
*
* Licensed 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.
*/
#ifndef CLUSTER_H
#define CLUSTER_H
#include "Node.h"
#include <string>
#include <map>
#include <list>
#include <boost/shared_ptr.hpp>
#include <expat.h>
#include <sstream>
namespace Voldemort {
using namespace boost;
class Cluster;
/**
* Represent a Voldemort cluster configuration
*/
class Cluster
{
public:
/**
* Construct a new Cluster object from an XML string
*
* @param clusterXml the Xml string
*/
explicit Cluster(const std::string clusterXml);
~Cluster() {}
/**
* Get the specified node by node ID
*
* @param nodeId the node Id
* @return pointer to the node
*/
boost::shared_ptr<Node>& getNodeById(int nodeId);
/**
* Get the number of nodes
*
* @return the number of nodes
*/
int getNodeCount() { return nodesById.size(); }
/**
* Type used for node map
*/
typedef std::map<int, boost::shared_ptr<Node> > nodeMap;
/**
* Get the node map
*
* @return the node map
*/
const nodeMap* getNodeMap()
{ return &nodesById; }
/**
* Stream insertion operator for cluster
*
* @param output the stream
* @param cluster the cluster object
* @return the stream
*/
friend std::ostream& operator<<(std::ostream& output, const Cluster& cluster);
private:
static void startElement(void* data, const XML_Char*el, const XML_Char **attr);
static void endElement(void* data, const XML_Char *el);
static void charData(void* data, const XML_Char *s, int len);
std::string name;
int numberOfTags;
std::map<int, boost::shared_ptr<Node> > nodesById;
int state;
std::stringstream buffer;
boost::shared_ptr<Node> curNode;
};
} /* namespace Voldemort */
#endif /* CLUSTER_H */