/*
 * 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.das;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.ConstrainingType;
import org.apache.tuscany.sca.assembly.Implementation;
import org.apache.tuscany.sca.assembly.Property;
import org.apache.tuscany.sca.assembly.Reference;
import org.apache.tuscany.sca.assembly.Service;
import org.apache.tuscany.sca.data.engine.config.ConnectionInfo;
import org.apache.tuscany.sca.interfacedef.InvalidInterfaceException;
import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract;
import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceFactory;


/**
 * The model representing a sample DAS implementation in an SCA assembly model.
 * 
 * @version $Rev$ $Date$
 */
public class DASImplementation implements Implementation {

    private String dasConfig;
    private String dataAccessType;
    
    private ConnectionInfo connectionInfo;
    
    private boolean unresolved;
    private List<Service> services = new ArrayList<Service>();

    /**
     * Constructs a new DAS implementation.
     */
    public DASImplementation(AssemblyFactory assemblyFactory,
                              JavaInterfaceFactory javaFactory) {

        // DAS implementation always provide a single service exposing
        // the DAS interface, and have no references and properties
        Service dasService = null;
        dasService = assemblyFactory.createService();
        dasService.setName("DAS");
        JavaInterface javaInterface;
        try {
            javaInterface = javaFactory.createJavaInterface(DAS.class);
        } catch (InvalidInterfaceException e) {
            throw new IllegalArgumentException(e);
        }
        JavaInterfaceContract interfaceContract = javaFactory.createJavaInterfaceContract();
        interfaceContract.setInterface(javaInterface);
        dasService.setInterfaceContract(interfaceContract);
        
        services.add(dasService);
    }

    /* DAS Model Information */
    
    public String getConfig() {
        return this.dasConfig;
    }

    public void setConfig(String config) {
        this.dasConfig = config;
    }
    
    public String getDataAccessType() {
        return this.dataAccessType;
    }
    
    public void setDataAccessType (String dataAccessType) {
        this.dataAccessType = dataAccessType;
    }
    
    public ConnectionInfo getConnectionInfo() {
        return this.connectionInfo;
    }

    public void setConnectionInfo(ConnectionInfo connectionInfo) {
        this.connectionInfo = connectionInfo;
    }

    /* SCA Model Information */

	public ConstrainingType getConstrainingType() {
		// DAS implementation does not support constrainingTypes
		return null;
	}

	public List<Property> getProperties() {
		// DAS implementation does not support properties
        return Collections.emptyList();
	}

	public List<Reference> getReferences() {
		// DAS implementation does not support references
        return Collections.emptyList();
	}

	public List<Service> getServices() {
        return services;
	}

	public String getURI() {
		// DAS implementation does not have a URI
        return null;
	}
	
	public boolean isUnresolved() {
        return unresolved;
    }

	public void setConstrainingType(ConstrainingType constrainingType) {
		// DAS implementation does not support constrainingTypes
	}

	public void setURI(String uri) {
		// DAS implementation does not have a URI
		
	}

	public void setUnresolved(boolean undefined) {
        this.unresolved = undefined;
    }
    
}