Direct.java

// **********************************************************************
//
// Copyright (c) 2003-2010 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 abstract class Direct implements Ice.Request
{
    public abstract Ice.DispatchStatus run(Ice.Object target);

    public final boolean isCollocated()
    {
        return true;
    }

    public final Ice.Current getCurrent()
    {
        return _current;
    }


    public
    Direct(Ice.Current current) throws Ice.UserException
    {
        _current = current;

        Ice.ObjectAdapterI adapter = (Ice.ObjectAdapterI)_current.adapter;
        assert(adapter != null);
        
        //
        // Must call incDirectCount() first, because it checks for
        // adapter deactivation, and prevents deactivation completion
        // until decDirectCount() is called. This is important,
        // because getServantManager() may not be called afer
        // deactivation completion.
        //
        adapter.incDirectCount();

        ServantManager servantManager = adapter.getServantManager();
        assert(servantManager != null);

        _servant = servantManager.findServant(_current.id, _current.facet);
        if(_servant == null)
        {
            _locator = servantManager.findServantLocator(_current.id.category);
            if(_locator == null && _current.id.category.length() > 0)
            {
                _locator = servantManager.findServantLocator("");
            }
            if(_locator != null)
            {
                _cookie = new Ice.LocalObjectHolder(); // Lazy creation.
                try
                {
                    _servant = _locator.locate(_current, _cookie);
                }
                catch(Ice.UserException ex)
                {
                    adapter.decDirectCount();
                    throw ex;
                }
                catch(java.lang.RuntimeException ex)
                {
                    adapter.decDirectCount();
                    throw ex;
                }
            }
        }

        if(_servant == null)
        {
            adapter.decDirectCount();
            if(servantManager != null && servantManager.hasServant(_current.id))
            {
                Ice.FacetNotExistException ex = new Ice.FacetNotExistException();
                ex.id = _current.id;
                ex.facet = _current.facet;
                ex.operation = _current.operation;
                throw ex;
            }
            else
            {
                Ice.ObjectNotExistException ex = new Ice.ObjectNotExistException();
                ex.id = _current.id;
                ex.facet = _current.facet;
                ex.operation = _current.operation;
                throw ex;
            }
        }
    }

    public void
    destroy() throws Ice.UserException
    {
        Ice.ObjectAdapterI adapter = (Ice.ObjectAdapterI)_current.adapter;
        assert(adapter != null);
        
        try
        {
            if(_locator != null && _servant != null)
            {
                _locator.finished(_current, _servant, _cookie.value);
            }
        }
        finally
        {
            adapter.decDirectCount();
        }
    }

    public Ice.Object
    servant()
    {
        return _servant;
    }

    public void
    throwUserException() throws Ice.UserException
    {
        assert _userException != null;
        throw _userException;
    }

    public void 
    setUserException(Ice.UserException ex)
    {
        _userException = ex;
    }

    private final Ice.Current _current;
    private Ice.Object _servant;
    private Ice.UserException _userException;
    private Ice.ServantLocator _locator;
    private Ice.LocalObjectHolder _cookie;
}