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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.
//
// **********************************************************************
package Freeze;
public class ConnectionI implements Connection
{
public Transaction
beginTransaction()
{
if(_transaction != null)
{
throw new Freeze.TransactionAlreadyInProgressException();
}
closeAllIterators();
_transaction = new TransactionI(this);
return _transaction;
}
public Transaction
currentTransaction()
{
return _transaction;
}
public void
removeMapIndex(String mapName, String indexName)
{
if(_dbEnv == null)
{
throw new DatabaseException("Closed connection");
}
try
{
_dbEnv.getEnv().removeDatabase(dbTxn(), mapName + "." + indexName, null);
}
catch(com.sleepycat.db.DeadlockException dx)
{
throw new DeadlockException(errorPrefix() + dx.getMessage(), _transaction, dx);
}
catch(com.sleepycat.db.DatabaseException dx)
{
throw new DatabaseException(errorPrefix() + dx.getMessage(), dx);
}
catch(java.io.FileNotFoundException fne)
{
throw new IndexNotFoundException(mapName, indexName);
}
}
public void
close()
{
if(_transaction != null)
{
try
{
_transaction.rollback();
}
catch(Freeze.DatabaseException dx)
{
//
// Ignored
//
}
}
java.util.Iterator<Map> p = _mapList.iterator();
while(p.hasNext())
{
p.next().close();
}
if(_dbEnv != null)
{
try
{
_dbEnv.close();
}
finally
{
_dbEnv = null;
}
}
}
public Ice.Communicator
getCommunicator()
{
return _communicator;
}
public Ice.EncodingVersion
getEncoding()
{
return _encoding;
}
public String
getName()
{
return _envName;
}
protected void
finalize()
throws Throwable
{
try
{
if(_dbEnv != null)
{
_logger.warning("leaked Connection for DbEnv \"" + _envName + "\"");
}
}
catch(java.lang.Exception ex)
{
}
finally
{
super.finalize();
}
}
ConnectionI(SharedDbEnv dbEnv)
{
_dbEnv = dbEnv;
_communicator = dbEnv.getCommunicator();
_encoding = dbEnv.getEncoding();
_logger = _communicator.getLogger();
_envName = dbEnv.getEnvName();
_trace = _communicator.getProperties().getPropertyAsInt("Freeze.Trace.Map");
_txTrace = _communicator.getProperties().getPropertyAsInt("Freeze.Trace.Transaction");
Ice.Properties properties = _communicator.getProperties();
_deadlockWarning = properties.getPropertyAsInt("Freeze.Warn.Deadlocks") > 0;
}
ConnectionI(Ice.Communicator communicator, String envName, com.sleepycat.db.Environment dbEnv)
{
this(SharedDbEnv.get(communicator, envName, dbEnv));
}
public void
closeAllIterators()
{
java.util.Iterator<Map> p = _mapList.iterator();
while(p.hasNext())
{
p.next().closeAllIterators();
}
}
public java.util.Iterator
registerMap(Map map)
{
_mapList.addFirst(map);
java.util.Iterator<Map> p = _mapList.iterator();
p.next();
return p;
}
public void
unregisterMap(java.util.Iterator p)
{
p.remove();
}
void
clearTransaction()
{
_transaction = null;
}
public com.sleepycat.db.Transaction
dbTxn()
{
if(_transaction == null)
{
return null;
}
else
{
return _transaction.dbTxn();
}
}
public SharedDbEnv
dbEnv()
{
return _dbEnv;
}
public String
envName()
{
return _envName;
}
public Ice.Communicator
communicator()
{
return _communicator;
}
public final int
trace()
{
return _trace;
}
public final int
txTrace()
{
return _txTrace;
}
public final boolean
deadlockWarning()
{
return _deadlockWarning;
}
private String
errorPrefix()
{
return "DbEnv(\"" + _envName + "\"): ";
}
private Ice.Communicator _communicator;
private Ice.EncodingVersion _encoding;
private Ice.Logger _logger;
private SharedDbEnv _dbEnv;
private String _envName;
private TransactionI _transaction;
private LinkedList<Map> _mapList = new LinkedList<Map>();
private int _trace;
private int _txTrace;
private boolean _deadlockWarning;
}
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