org/objectweb/proactive/core/component/type/ProActiveInterfaceTypeImpl.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.type;

import java.io.Serializable;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;

import org.apache.log4j.Logger;
import org.objectweb.fractal.api.Type;
import org.objectweb.fractal.api.type.InterfaceType;
import org.objectweb.proactive.core.ProActiveRuntimeException;
import org.objectweb.proactive.core.util.log.Loggers;
import org.objectweb.proactive.core.util.log.ProActiveLogger;


public class ProActiveInterfaceTypeImpl implements ProActiveInterfaceType, Serializable {
    protected static Logger logger = ProActiveLogger.getLogger(Loggers.COMPONENTS);
    private String name;

    private String signature;
    private boolean isClient;
    private boolean isOptional;
    private String cardinality;

    public ProActiveInterfaceTypeImpl() {
        super();
    }

    public ProActiveInterfaceTypeImpl(final InterfaceType itfType) {
        this.name = itfType.getFcItfName();
        this.signature = itfType.getFcItfSignature();
        this.isClient = itfType.isFcClientItf();
        this.isOptional = itfType.isFcOptionalItf();
        if(itfType.isFcCollectionItf()) {
            cardinality = ProActiveTypeFactory.COLLECTION_CARDINALITY;
        } else {
            cardinality = ProActiveTypeFactory.SINGLETON_CARDINALITY;
        }
    }
    
    public ProActiveInterfaceTypeImpl(String name, String signature,
        boolean isClient, boolean isOptional, String cardinality) {
        this.name = name;
        this.signature = signature;
        this.isClient = isClient;
        this.isOptional = isOptional;
        this.cardinality = cardinality;
        checkMethodsSignatures(signature, cardinality);
    }
    
    
    private boolean checkMethodsSignatures(String signature, String cardinality) {
        try {
        if (ProActiveTypeFactory.MULTICAST_CARDINALITY.equals(cardinality)) {
            Class c = Class.forName(signature);
            Method[] methods = c.getMethods();
            for (Method m : methods) {
                if (!(m.getGenericReturnType() instanceof ParameterizedType) && !(Void.TYPE ==m.getReturnType())) {
                    throw new ProActiveRuntimeException("methods of a multicast interface must return parameterized types or void, " +
                            "which is not the case for method " + m.toString() + " in interface " + signature);
                }
            }
        }
        } catch (ClassNotFoundException e) {
            throw new ProActiveRuntimeException("cannot find interface defined in component interface signature : " + e.getMessage());
        }
        return true;
    }



    // -------------------------------------------------------------------------
    // Implementation of the InterfaceType interface
    // -------------------------------------------------------------------------

    public String getFcItfName() {
        return name;
    }

    public String getFcItfSignature() {
        return signature;
    }

    public boolean isFcClientItf() {
        return isClient;
    }

    public boolean isFcOptionalItf() {
        return isOptional;
    }

    public boolean isFcSubTypeOf(final Type type) {
        throw new RuntimeException("Not yet implemented.");
    }

    public String getFcCardinality() {
        return cardinality;
    }
    
    public boolean isFcCollective() {
        return (ProActiveTypeFactory.GATHER_CARDINALITY.equals(cardinality)
                 || (ProActiveTypeFactory.MULTICAST_CARDINALITY.equals(cardinality)));
    }

    public boolean isFcGathercastItf() {
        return ProActiveTypeFactory.GATHER_CARDINALITY.equals(cardinality);
    }

    public boolean isFcMulticastItf() {
        return ProActiveTypeFactory.MULTICAST_CARDINALITY.equals(cardinality);
    }

    public boolean isFcSingletonItf() {
        return ProActiveTypeFactory.SINGLETON_CARDINALITY.equals(cardinality);
    }
    
    /*
     * @see org.objectweb.fractal.api.type.InterfaceType#isFcCollectionItf()
     */
    public boolean isFcCollectionItf() {
        return ProActiveTypeFactory.COLLECTION_CARDINALITY.equals(cardinality);
    }


}

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