/*
* 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.
*/
package org.apache.commons.proxy.provider.remoting;
import org.apache.commons.proxy.ObjectProvider;
import org.apache.commons.proxy.exception.ObjectProviderException;
import java.rmi.NotBoundException;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.RMIClientSocketFactory;
/**
* Provides an object by looking it up in an RMI registry.
*
* @author James Carman
* @since 1.0
*/
public class RmiProvider implements ObjectProvider
{
//----------------------------------------------------------------------------------------------------------------------
// Fields
//----------------------------------------------------------------------------------------------------------------------
private String host = "localhost";
private int port = Registry.REGISTRY_PORT;
private RMIClientSocketFactory clientSocketFactory;
private String name;
//----------------------------------------------------------------------------------------------------------------------
// Constructors
//----------------------------------------------------------------------------------------------------------------------
public RmiProvider()
{
}
public RmiProvider( String name )
{
setName( name );
}
public RmiProvider( String host, String name )
{
setHost( host );
setName( name );
}
public RmiProvider( String host, int port, String name )
{
setHost( host );
setName( name );
setPort( port );
}
public RmiProvider( String host, int port, RMIClientSocketFactory clientSocketFactory, String name )
{
setHost( host );
setPort( port );
setClientSocketFactory( clientSocketFactory );
setName( name );
}
//----------------------------------------------------------------------------------------------------------------------
// ObjectProvider Implementation
//----------------------------------------------------------------------------------------------------------------------
public Object getObject()
{
Registry reg = null;
try
{
reg = getRegistry();
return reg.lookup( name );
}
catch( NotBoundException e )
{
throw new ObjectProviderException( "Name " + name + " not found in registry at " + host + ":" + port + ".",
e );
}
catch( RemoteException e )
{
throw new ObjectProviderException(
"Unable to lookup service named " + name + " in registry at " + host + ":" + port + ".", e );
}
}
//----------------------------------------------------------------------------------------------------------------------
// Getter/Setter Methods
//----------------------------------------------------------------------------------------------------------------------
public void setName( String name )
{
this.name = name;
}
public void setClientSocketFactory( RMIClientSocketFactory clientSocketFactory )
{
this.clientSocketFactory = clientSocketFactory;
}
public void setHost( String host )
{
this.host = host;
}
public void setPort( int port )
{
this.port = port;
}
//----------------------------------------------------------------------------------------------------------------------
// Other Methods
//----------------------------------------------------------------------------------------------------------------------
private Registry getRegistry()
{
try
{
if( clientSocketFactory != null )
{
return LocateRegistry.getRegistry( host, port, clientSocketFactory );
}
else
{
return LocateRegistry.getRegistry( host, port );
}
}
catch( RemoteException e )
{
throw new ObjectProviderException( "Unable to locate registry at " + host + ":" + port + ".", e );
}
}
}