/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.tuscany.sca.implementation.spring;

import java.util.List;

import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.invocation.ExtensibleProxyFactory;
import org.apache.tuscany.sca.core.invocation.ProxyFactory;
import org.apache.tuscany.sca.core.invocation.ProxyFactoryExtensionPoint;
import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint;
import org.apache.tuscany.sca.databinding.TransformerExtensionPoint;
import org.apache.tuscany.sca.databinding.impl.MediatorImpl;
import org.apache.tuscany.sca.implementation.java.injection.JavaPropertyValueObjectFactory;
import org.apache.tuscany.sca.policy.util.PolicyHandlerDefinitionsLoader;
import org.apache.tuscany.sca.policy.util.PolicyHandlerTuple;
import org.apache.tuscany.sca.provider.ImplementationProvider;
import org.apache.tuscany.sca.provider.ImplementationProviderFactory;
import org.apache.tuscany.sca.runtime.RuntimeComponent;

/**
 * ImplementationProviderFactory for Spring implementation type
 * @version $Rev: 511195 $ $Date: 2007-02-24 02:29:46 +0000 (Sat, 24 Feb 2007) $ 
 *
 */
public class SpringImplementationProviderFactory implements ImplementationProviderFactory<SpringImplementation> {

    private ProxyFactory proxyFactory;
    private JavaPropertyValueObjectFactory propertyFactory;
    private List<PolicyHandlerTuple> policyHandlerClassNames = null;

    /**
     * Simple constructor
     *
     */
    public SpringImplementationProviderFactory(ExtensionPointRegistry extensionPoints) {
        super();
        
        ProxyFactoryExtensionPoint proxyFactories = extensionPoints.getExtensionPoint(ProxyFactoryExtensionPoint.class); 
        proxyFactory = new ExtensibleProxyFactory(proxyFactories); 

        // TODO: could the runtime have a default PropertyValueObjectFactory?
        DataBindingExtensionPoint dataBindings = extensionPoints.getExtensionPoint(DataBindingExtensionPoint.class);
        TransformerExtensionPoint transformers = extensionPoints.getExtensionPoint(TransformerExtensionPoint.class);
        MediatorImpl mediator = new MediatorImpl(dataBindings, transformers);
        propertyFactory = new JavaPropertyValueObjectFactory(mediator);
        
        policyHandlerClassNames = PolicyHandlerDefinitionsLoader.loadPolicyHandlerClassnames();
    }

    /**
     * Returns a SpringImplementationProvider for a given component and Spring implementation
     * @param component the component for which implementation instances are required
     * @param implementation the Spring implementation with details of the component
     * implementation
     * @return the SpringImplementationProvider for the specified component
     */
    public ImplementationProvider createImplementationProvider(RuntimeComponent component,
                                                               SpringImplementation implementation) {
        return new SpringImplementationProvider(component, 
                                                implementation, 
                                                proxyFactory, 
                                                propertyFactory, 
                                                policyHandlerClassNames);
    }

    /**
     * Returns the class of the Spring implementation
     */
    public Class<SpringImplementation> getModelType() {
        return SpringImplementation.class;
    }
} // end class SpringImplementationProviderFactory