org/objectweb/proactive/core/body/request/BodyRequest.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.body.request;

import java.lang.reflect.TypeVariable;
import java.util.Map;

import org.objectweb.proactive.Body;
import org.objectweb.proactive.core.body.UniversalBody;
import org.objectweb.proactive.core.body.message.MessageImpl;
import org.objectweb.proactive.core.body.reply.Reply;
import org.objectweb.proactive.core.exceptions.proxy.ProxyNonFunctionalException;
import org.objectweb.proactive.core.mop.MethodCall;
import org.objectweb.proactive.core.mop.MethodCallExecutionFailedException;
import org.objectweb.proactive.ext.security.ProActiveSecurityManager;


public class BodyRequest extends MessageImpl implements Request,
    java.io.Serializable {
    protected MethodCall methodCall;
    protected boolean isPriority;
        protected boolean isNFRequest;
        protected int nfRequestPriority;

    //
    // -- CONSTRUCTORS -----------------------------------------------
    //
        public BodyRequest(Body targetBody, String methodName,
                        Class[] paramClasses, Object[] params, boolean isPriority)
        throws NoSuchMethodException {
                super(null, 0, true, methodName);
                if (paramClasses == null) {
                        paramClasses = new Class[params.length];
                        for (int i = 0; i < params.length; i++) {
                                paramClasses[i] = params[i].getClass();
                        }
                }
                methodCall = MethodCall.getMethodCall(targetBody.getClass().getMethod(methodName,
                                paramClasses), params, (Map<TypeVariable, Class>)null);
                this.isPriority = isPriority;
        }

        //Non functional BodyRequests constructor
    public BodyRequest(Body targetBody, String methodName,
                Class[] paramClasses, Object[] params, boolean isNFRequest, int nfRequestPriority)
    throws NoSuchMethodException {
        super(null, 0, true, methodName);
        if (paramClasses == null) {
                paramClasses = new Class[params.length];
                for (int i = 0; i < params.length; i++) {
                        paramClasses[i] = params[i].getClass();
                }
        }
        methodCall = MethodCall.getMethodCall(targetBody.getClass().getMethod(methodName,
                        paramClasses), params, (Map<TypeVariable, Class>)null);
        
        this.isNFRequest = isNFRequest;
        this.nfRequestPriority = nfRequestPriority;
    }
    
    // SECURITY
    public boolean isCiphered() {
        return false;
    }

    public boolean decrypt(ProActiveSecurityManager psm) {
        return true;
    }

    /* (non-Javadoc)
     * @see org.objectweb.proactive.core.body.request.Request#getSessionId()
     */
    public long getSessionId() {
        return 0;
    }

    public boolean crypt(ProActiveSecurityManager psm,
        UniversalBody destinationBody) {
        return true;
    }

    //
    // -- PUBLIC METHODS -----------------------------------------------
    //
    //
    // -- Implements Request -----------------------------------------------
    //
    public int send(UniversalBody destinationBody) throws java.io.IOException {
        int ftres;
        if (!(destinationBody instanceof Body)) {
            throw new java.io.IOException(
                "The destination body is not a local body");
        }
        if (!isPriority) {
            ftres = ((Body) destinationBody).getRequestQueue().add(this);
        } else {
            ftres = ((Body) destinationBody).getRequestQueue().addToFront(this);
        }
        return ftres;
    }

    public Reply serve(Body targetBody) throws ServeException {
        serveInternal(targetBody);
        return null;
    }

    public Reply serveAlternate(Body targetBody, ProxyNonFunctionalException nfe) {
        return null;
    }

    public boolean isOneWay() {
        return true;
    }

    public boolean hasBeenForwarded() {
        return false;
    }

    public void resetSendCounter() {
    }

    public UniversalBody getSender() {
        return null;
    }

    public Object getParameter(int index) {
        return methodCall.getParameter(index);
    }

    public MethodCall getMethodCall() {
        return methodCall;
    }

    public void notifyReception(UniversalBody bodyReceiver)
        throws java.io.IOException {
    }

    //
    // -- PROTECTED METHODS -----------------------------------------------
    //
    protected void serveInternal(Body targetBody) throws ServeException {
        try {
            methodCall.execute(targetBody);
        } catch (MethodCallExecutionFailedException e) {
            throw new ServeException("serve method " + methodCall.getName() +
                " failed", e);
        } catch (java.lang.reflect.InvocationTargetException e) {
            e.printStackTrace();
        }
    }
    
    
    //
    // -- METHODS DEALING WITH NON FUNCTIONAL REQUESTS
    //
    
        public boolean isFunctionalRequest() {
                return this.isNFRequest;
        }

        public void setFunctionalRequest(boolean isFunctionalRequest) {
           this.isNFRequest = isFunctionalRequest; 
        }

        public void setNFRequestPriority(int nfReqPriority) {
                this.nfRequestPriority = nfReqPriority;
        }

        public int getNFRequestPriority() {
                return this.nfRequestPriority;
        }
}

---