org/objectweb/proactive/core/group/ProcessForOneWayCall.java

/* 
 * ################################################################
 * 
 * ProActive: The Java(TM) library for Parallel, Distributed, 
 *            Concurrent computing with Security and Mobility
 * 
 * Copyright (C) 1997-2007 INRIA/University of Nice-Sophia Antipolis
 * Contact: proactive@objectweb.org
 * 
 * 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, or any later version.
 *  
 * 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
 *  
 *  Initial developer(s):               The ProActive Team
 *                        http://www.inria.fr/oasis/ProActive/contacts.html
 *  Contributor(s): 
 * 
 * ################################################################
 */ 
package org.objectweb.proactive.core.group;

import java.util.Vector;

import org.objectweb.proactive.Body;
import org.objectweb.proactive.core.body.LocalBodyStore;
import org.objectweb.proactive.core.body.proxy.UniversalBodyProxy;
import org.objectweb.proactive.core.component.ProActiveInterface;
import org.objectweb.proactive.core.component.representative.ProActiveComponentRepresentative;
import org.objectweb.proactive.core.mop.MethodCall;
import org.objectweb.proactive.core.mop.Proxy;
import org.objectweb.proactive.core.mop.StubObject;


public class ProcessForOneWayCall extends AbstractProcessForGroup
    implements Runnable {
    private int index;
    private MethodCall mc;
    private Body body;
    private ExceptionListException exceptionList;

    public ProcessForOneWayCall(ProxyForGroup proxyGroup, Vector memberList,
        int index, MethodCall mc, Body body,
        ExceptionListException exceptionList) {
        this.proxyGroup = proxyGroup;
        this.memberList = memberList;
        this.index = index;
        this.mc = mc;
        this.body = body;
        this.exceptionList = exceptionList;
    }

    public void run() {
        LocalBodyStore.getInstance().setCurrentThreadBody(body);
        Object object = null;

        // try-catch block added by AdC for P2P
        try {
            object = this.memberList.get(this.index);
        } catch (ArrayIndexOutOfBoundsException e) {
            return;
        }
        boolean objectIsLocal = false;

        /* only do the communication (reify) if the object is not an error nor an exception */
        if (!(object instanceof Throwable)) {
            try {
                if (object instanceof ProActiveComponentRepresentative) {
                    // delegate to the corresponding interface
                    Object target;
                    if (mc.getComponentMetadata().getComponentInterfaceName() == null) {
                        // a call on the Component interface
                        target = object;
                    } else {
                        target = ((ProActiveComponentRepresentative) object).getFcInterface(mc.getComponentMetadata()
                                                                                              .getComponentInterfaceName());
                    }
                    this.mc.execute(target);
                } else if (object instanceof ProActiveInterface) {
                    this.mc.execute(object);
                } else {
                    Proxy lastProxy = AbstractProcessForGroup.findLastProxy(object);
                    if (lastProxy instanceof UniversalBodyProxy) {
                        objectIsLocal = ((UniversalBodyProxy) lastProxy).isLocal();
                    }
                    if (lastProxy == null) {
                        // means we are dealing with a non-reified object (a standard Java Object)
                        this.mc.execute(object);
                    } else if (objectIsLocal) {
                        if (!(mc instanceof MethodCallControlForGroup)) {
                                                        ((StubObject) object).getProxy().reify(
                                                                        new MethodCall(this.mc));
                                                } else {
                                                        ((StubObject) object).getProxy().reify(this.mc);
                                                }
                                        } else {
                                                ((StubObject) object).getProxy().reify(this.mc);
                                        }
                }
            } catch (Throwable e) {
                e.printStackTrace();
                this.exceptionList.add(new ExceptionInGroup(object, this.index,
                        e.fillInStackTrace()));
            }
        }
    }
}

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