/*
Copyright (c) 2007 Health Market Science, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA
You can contact Health Market Science at info@healthmarketscience.com
or at the following address:
Health Market Science
2700 Horizon Drive
Suite 200
King of Prussia, PA 19406
*/
package com.healthmarketscience.rmiio.exporter;
import java.io.IOException;
import com.healthmarketscience.rmiio.RemoteOutputStream;
import static com.healthmarketscience.rmiio.exporter.RemoteStreamServerInvokerHelper.*;
/**
* Base RemoteOutputStream implementation which translates each method
* invocation into a call to the {@link #invoke} method in a manner compatible
* with the {@link RemoteStreamServerInvokerHelper} {@code invoke} method for
* a RemoteOutputStreamServer. This class may be useful for exporting remote
* stream servers in alternative RPC frameworks.
*
* @author James Ahlborn
*/
public abstract class RemoteOutputStreamClientProxy
implements RemoteOutputStream
{
public RemoteOutputStreamClientProxy() {
}
public boolean usingGZIPCompression()
throws IOException
{
return (Boolean)invoke(OUT_USING_COMPRESSION_METHOD);
}
public void close(boolean readSuccess)
throws IOException
{
invoke(OUT_CLOSE_METHOD, readSuccess);
}
public void flush()
throws IOException
{
invoke(OUT_FLUSH_METHOD);
}
public void writePacket(byte[] packet, int packetId)
throws IOException
{
invoke(OUT_WRITE_PACKET_METHOD, packet, packetId);
}
/**
* Invokes the given method name with the given parameters on the remote
* RemoteInputStreamServer and returns the results.
* @param methodCode the name of the method to invoke, one of the
* {@code RemoteStreamServerInvokerHelper.IN_*_METHOD}
* constants
* @param parameters parameters for the method invocation (may be
* {@code null} if the method takes no parameters)
* @return the result of the method call, (or {@code null} for void methods)
* @throws IOException if the remote server throws or there is a
* communication failure.
*/
protected abstract Object invoke(int methodCode, Object... parameters)
throws IOException;
}