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path: root/java/src/IceInternal/ConnectionRequestHandler.java
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// **********************************************************************
//
// Copyright (c) 2003-2014 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 IceInternal;

public class ConnectionRequestHandler implements RequestHandler
{
    @Override
    public RequestHandler 
    connect()
    {
        assert(false); // This request handler is only created after connection binding.
        return null;
    }
    
    @Override
    public RequestHandler 
    update(RequestHandler previousHandler, RequestHandler newHandler)
    {
        try
        {
            if(previousHandler == this)
            {
                return newHandler;
            }
            else if(previousHandler.getConnection() == _connection)
            {
                //
                // If both request handlers point to the same connection, we also
                // update the request handler. See bug ICE-5489 for reasons why
                // this can be useful.
                //
                return newHandler;
            }
        }
        catch(Ice.Exception ex)
        {
            // Ignore
        }
        return this;
    }
    
    @Override
    public void
    prepareBatchRequest(BasicStream out)
        throws RetryException
    {
        _connection.prepareBatchRequest(out);
    }

    @Override
    public void
    finishBatchRequest(BasicStream out)
    {
        _connection.finishBatchRequest(out, _compress);
    }

    @Override
    public void
    abortBatchRequest()
    {
        _connection.abortBatchRequest();
    }

    @Override
    public int sendAsyncRequest(OutgoingAsyncBase out)
        throws RetryException
    {
        return out.send(_connection, _compress, _response);
    }

    @Override
    public void
    asyncRequestCanceled(OutgoingAsyncBase outgoingAsync, Ice.LocalException ex)
    {
        _connection.asyncRequestCanceled(outgoingAsync, ex);
    }

    @Override
    public Reference
    getReference()
    {
        return _reference;
    }

    @Override
    public Ice.ConnectionI
    getConnection()
    {
        return _connection;
    }

    @Override
    public Ice.ConnectionI
    waitForConnection()
    {
        return _connection;
    }

    public ConnectionRequestHandler(Reference ref, Ice.ConnectionI connection, boolean compress) 
    {
        _reference = ref;
        _response = _reference.getMode() == Reference.ModeTwoway;
        _connection = connection;
        _compress = compress;
    }

    private final Reference _reference;
    private final boolean _response;
    private final Ice.ConnectionI _connection;
    private final boolean _compress;

}