org/objectweb/proactive/core/component/Utils.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.component;

import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Iterator;

import org.objectweb.fractal.api.Component;
import org.objectweb.fractal.api.Interface;
import org.objectweb.fractal.api.NoSuchInterfaceException;
import org.objectweb.fractal.api.type.ComponentType;
import org.objectweb.fractal.api.type.InterfaceType;
import org.objectweb.proactive.core.component.type.ProActiveInterfaceType;
import org.objectweb.proactive.core.component.type.ProActiveTypeFactory;

public class Utils {

    public static String pertainsToACollectionInterface(String clientItfName,
        Component owner) {
        InterfaceType[] itfTypes = (((ComponentType) owner.getFcType()).getFcInterfaceTypes());
        for (int i = 0; i < itfTypes.length; i++) {
            if (itfTypes[i].isFcCollectionItf()) {
                if (clientItfName.startsWith(itfTypes[i].getFcItfName())) {
                    return itfTypes[i].getFcItfName();
                }
            }
        }
        return null;
    }

    public static InterfaceType getItfType(String itfName, Component owner) throws NoSuchInterfaceException {
        InterfaceType[] itfTypes = (((ComponentType) owner.getFcType()).getFcInterfaceTypes());
        for (int i = 0; i < itfTypes.length; i++) {
            if (itfTypes[i].isFcCollectionItf()) {
                if (itfName.startsWith(itfTypes[i].getFcItfName()) &&
                        !itfName.equals(itfTypes[i].getFcItfName())) {
                    return itfTypes[i];
                }
            } else {
                if (itfName.equals(itfTypes[i].getFcItfName())) {
                    return itfTypes[i];
                }
            }
        }
        return null;
    }

    public static boolean hasSingleCardinality(String itfName, Component owner) {
        Iterator it = Arrays.asList(owner.getFcInterfaces()).iterator();
        while (it.hasNext()) {
            ProActiveInterfaceType itfType = ((ProActiveInterfaceType) ((Interface) it.next()).getFcItfType());
            if (itfType.getFcItfName().equals(itfName) &&
                    itfType.isFcSingletonItf()) {
                return true;
            }
        }
        return false;
    }

    public static boolean isMulticastItf(String itfName, Component owner) {
        try {
            return ProActiveTypeFactory.MULTICAST_CARDINALITY.equals(getCardinality(
                    itfName, owner));
        } catch (NoSuchInterfaceException e) {
            return false;
        }
    }

    public static boolean isGathercastItf(Interface itf) {
        if (!(itf instanceof ProActiveInterface)) {
            return false;
        }
        return ((ProActiveInterfaceType) itf.getFcItfType()).isFcGathercastItf();
    }

    public static boolean isSingletonItf(String itfName, Component owner) {
        try {
            return ProActiveTypeFactory.SINGLETON_CARDINALITY.equals(getCardinality(
                    itfName, owner));
        } catch (NoSuchInterfaceException e) {
            return false;
        }
    }

    public static String getCardinality(String itfName, Component owner)
        throws NoSuchInterfaceException {
        InterfaceType[] itfTypes = ((ComponentType) owner.getFcType()).getFcInterfaceTypes();

        for (InterfaceType type : itfTypes) {
            if (type.getFcItfName().equals(itfName)) {
                return ((ProActiveInterfaceType) type).getFcCardinality();
            }
        }
        throw new NoSuchInterfaceException(itfName);
    }

    public static String getMethodSignatureWithoutReturnTypeAndModifiers(
        Method m) {
        String result = m.toString();
        result = result.substring(result.indexOf(m.getName()));
        return result;
    }

}

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