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/*
 * 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.client.rmi;

import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Proxy;
import java.net.URI;

import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.UtilityExtensionPoint;
import org.apache.tuscany.sca.runtime.DomainRegistryFactory;
import org.apache.tuscany.sca.runtime.EndpointRegistry;
import org.oasisopen.sca.NoSuchDomainException;
import org.oasisopen.sca.NoSuchServiceException;
import org.oasisopen.sca.client.SCAClientFactory;

public class SCAClientFactoryImpl extends SCAClientFactory {

    private EndpointRegistry endpointRegistry;
    private ExtensionPointRegistry extensionsRegistry;

    public SCAClientFactoryImpl(URI domainURI) {
        super(domainURI);

        this.extensionsRegistry = new DefaultExtensionPointRegistry();
        UtilityExtensionPoint utilities = extensionsRegistry.getExtensionPoint(UtilityExtensionPoint.class);
        DomainRegistryFactory domainRegistryFactory = utilities.getUtility(DomainRegistryFactory.class);
        this.endpointRegistry = domainRegistryFactory.getEndpointRegistry(getDomainURI().toString(), getDomainName());

        try {
            // TODO: wait a mo for the endpoint registry to replicate
            Thread.sleep(5000);
        } catch (InterruptedException e) {
        }
    }

    @Override
    @SuppressWarnings("unchecked")
    public <T> T getService(Class<T> serviceInterface, String serviceName) throws NoSuchServiceException, NoSuchDomainException {
        InvocationHandler handler = new SCAClientProxyHandler(serviceName, extensionsRegistry, endpointRegistry);
        return (T)Proxy.newProxyInstance(serviceInterface.getClassLoader(), new Class[] {serviceInterface}, handler);
    }
    
    private String getDomainName() {
        String uri = getDomainURI().toString();
        int i = uri.indexOf(":");
        if (i > -1 && uri.charAt(i+1) != '/') {
            uri = uri.replaceFirst(":", ":/");
        }
        if (i > -1 && uri.charAt(i+2) != '/') {
            uri = uri.replaceFirst(":/", "://");
        }
        return URI.create(uri).getHost();
    }
    
    public void stop() {
        extensionsRegistry.stop();
    }

    public EndpointRegistry getEndpointRegistry() {
        return endpointRegistry;
    }

    public ExtensionPointRegistry getExtensionsRegistry() {
        return extensionsRegistry;
    }
}