ReflectiveTie.java

/*
 * Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package org.jboss.com.sun.corba.se.impl.presentation.rmi;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.rmi.Remote;

import javax.rmi.CORBA.Tie;

import org.jboss.com.sun.corba.se.impl.logging.ORBUtilSystemException;
import org.jboss.com.sun.corba.se.spi.presentation.rmi.DynamicMethodMarshaller;
import org.jboss.com.sun.corba.se.spi.presentation.rmi.PresentationManager;
import org.omg.CORBA.SystemException;
import org.omg.CORBA.portable.ResponseHandler;
import org.omg.CORBA.portable.UnknownException;
import org.omg.CORBA_2_3.portable.InputStream;
import org.omg.CORBA_2_3.portable.OutputStream;
import org.omg.PortableServer.Servant;

public final class ReflectiveTie extends Servant implements Tie
{
    private Remote target = null;

    private PresentationManager pm;

    private PresentationManager.ClassData classData = null;

    private ORBUtilSystemException wrapper = null;

    public ReflectiveTie(PresentationManager pm, ORBUtilSystemException wrapper)
    {
        SecurityManager s = System.getSecurityManager();
        if (s != null)
        {
            s.checkPermission(new DynamicAccessPermission("access"));
        }
        this.pm = pm;
        this.wrapper = wrapper;
    }

    public String[] _all_interfaces(org.omg.PortableServer.POA poa, byte[] objectId)
    {
        return classData.getTypeIds();
    }

    public void setTarget(Remote target)
    {
        this.target = target;

        if (target == null)
        {
            classData = null;
        }
        else
        {
            Class<?> targetClass = target.getClass();
            classData = pm.getClassData(targetClass);
        }
    }

    public Remote getTarget()
    {
        return target;
    }

    public org.omg.CORBA.Object thisObject()
    {
        return _this_object();
    }

    public void deactivate()
    {
        try
        {
            _poa().deactivate_object(_poa().servant_to_id(this));
        }
        catch (org.omg.PortableServer.POAPackage.WrongPolicy exception)
        {
            // ignore
        }
        catch (org.omg.PortableServer.POAPackage.ObjectNotActive exception)
        {
            // ignore
        }
        catch (org.omg.PortableServer.POAPackage.ServantNotActive exception)
        {
            // ignore
        }
    }

    public org.omg.CORBA.ORB orb()
    {
        return _orb();
    }

    public void orb(org.omg.CORBA.ORB orb)
    {
        try
        {
            ((org.omg.CORBA_2_3.ORB) orb).set_delegate(this);
        }
        catch (ClassCastException e)
        {
            throw wrapper.badOrbForServant(e);
        }
    }

    public org.omg.CORBA.portable.OutputStream _invoke(String method, org.omg.CORBA.portable.InputStream _in,
            ResponseHandler reply)
    {
        Method javaMethod = null;
        DynamicMethodMarshaller dmm = null;

        try
        {
            InputStream in = (InputStream) _in;

            javaMethod = classData.getIDLNameTranslator().getMethod(method);
            if (javaMethod == null)
                throw wrapper.methodNotFoundInTie(method, target.getClass().getName());

            dmm = pm.getDynamicMethodMarshaller(javaMethod);

            Object[] args = dmm.readArguments(in);

            Object result = javaMethod.invoke(target, args);

            OutputStream os = (OutputStream) reply.createReply();

            dmm.writeResult(os, result);

            return os;
        }
        catch (IllegalAccessException ex)
        {
            throw wrapper.invocationErrorInReflectiveTie(ex, javaMethod.getName(), javaMethod.getDeclaringClass()
                    .getName());
        }
        catch (IllegalArgumentException ex)
        {
            throw wrapper.invocationErrorInReflectiveTie(ex, javaMethod.getName(), javaMethod.getDeclaringClass()
                    .getName());
        }
        catch (InvocationTargetException ex)
        {
            // Unwrap the actual exception so that it can be wrapped by an UnknownException or thrown if it is a system
            // exception.
            // This is expected in the server dispatcher code.
            Throwable thr = ex.getCause();
            if (thr instanceof SystemException)
                throw (SystemException) thr;
            else if ((thr instanceof Exception) && dmm.isDeclaredException(thr))
            {
                OutputStream os = (OutputStream) reply.createExceptionReply();
                dmm.writeException(os, (Exception) thr);
                return os;
            }
            else
                throw new UnknownException(thr);
        }
    }
}