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// **********************************************************************
//
// Copyright (c) 2003-2012 ZeroC, Inc. All rights reserved.
//
// This copy of Ice is licensed to you under the terms described in the
// ICE_LICENSE file included in this distribution.
//
// **********************************************************************
#include <IceStorm/FreezeDB/FreezeDB.h>
#include <IceStorm/FreezeDB/LLUMap.h>
#include <IceStorm/FreezeDB/SubscriberMap.h>
#include <sys/types.h>
#include <sys/stat.h>
using namespace IceStorm;
using namespace std;
extern "C"
{
ICE_DECLSPEC_EXPORT ::Ice::Plugin*
createFreezeDB(const Ice::CommunicatorPtr& communicator, const string& /*name*/, const Ice::StringSeq& /*args*/)
{
return new IceStorm::FreezeDBPlugin(communicator);
}
}
namespace
{
//
// Freeze wrappers for Freeze dictionaries
//
class FreezeLLUWrapper : public LLUWrapper
{
public:
FreezeLLUWrapper(const Freeze::ConnectionPtr& connection, const std::string& dbName) :
_llumap(connection, dbName)
{
}
virtual void
put(const IceStormElection::LogUpdate& llu)
{
try
{
LLUMap::iterator ci = _llumap.find("_manager");
if(ci == _llumap.end())
{
_llumap.put(LLUMap::value_type("_manager", llu));
}
else
{
ci.set(llu);
}
}
catch(const Freeze::DatabaseException& ex)
{
FreezeDB::throwDatabaseException(__FILE__, __LINE__, ex);
}
}
virtual IceStormElection::LogUpdate
get()
{
try
{
LLUMap::iterator ci = _llumap.find("_manager");
assert(ci != _llumap.end());
return ci->second;
}
catch(const Freeze::DatabaseException& ex)
{
FreezeDB::throwDatabaseException(__FILE__, __LINE__, ex);
return IceStormElection::LogUpdate(); // Keep the compiler happy.
}
}
private:
LLUMap _llumap;
};
class FreezeSubscribersWrapper : public FreezeDB::Wrapper<SubscriberMap, SubscriberRecordKey, SubscriberRecord>,
public SubscribersWrapper
{
public:
FreezeSubscribersWrapper(const Freeze::ConnectionPtr& connection, const std::string& dbName) :
FreezeDB::Wrapper<SubscriberMap, SubscriberRecordKey, SubscriberRecord>(connection, dbName)
{
}
void
eraseTopic(const Ice::Identity& topic)
{
try
{
SubscriberRecordKey key;
key.topic = topic;
SubscriberMap::iterator p = _dict.find(key);
while(p != _dict.end() && p->first.topic == key.topic)
{
_dict.erase(p++);
}
}
catch(const Freeze::DatabaseException& ex)
{
FreezeDB::throwDatabaseException(__FILE__, __LINE__, ex);
}
}
};
}
FreezeConnectionPool::FreezeConnectionPool(const Ice::CommunicatorPtr& communicator, const string& envName) :
FreezeDB::ConnectionPool(communicator, envName)
{
}
LLUWrapperPtr
FreezeConnectionPool::getLLU(const IceDB::DatabaseConnectionPtr& connection)
{
FreezeDB::DatabaseConnection* c = dynamic_cast<FreezeDB::DatabaseConnection*>(connection.get());
return new FreezeLLUWrapper(c->freezeConnection(), "llu");
}
SubscribersWrapperPtr
FreezeConnectionPool::getSubscribers(const IceDB::DatabaseConnectionPtr& connection)
{
FreezeDB::DatabaseConnection* c = dynamic_cast<FreezeDB::DatabaseConnection*>(connection.get());
// COMPILERFIX: GCC 4.4 w/ -O2 emits strict aliasing warnings
// without the follow temporary.
SubscribersWrapper* w = new FreezeSubscribersWrapper(c->freezeConnection(), "subscribers");
return w;
}
FreezeDBPlugin::FreezeDBPlugin(const Ice::CommunicatorPtr& communicator) : _communicator(communicator)
{
}
void
FreezeDBPlugin::initialize()
{
}
void
FreezeDBPlugin::destroy()
{
}
ConnectionPoolPtr
FreezeDBPlugin::getConnectionPool(const string& name)
{
return new FreezeConnectionPool(_communicator, name);
}
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