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/**
 * SCA4J
 * Copyright (c) 2009 - 2099 Service Symphony Ltd
 *
 * Licensed to you under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.  A copy of the license
 * is included in this distrubtion or you may obtain a copy at
 *
 *    http://www.opensource.org/licenses/apache2.0.php
 *
 * 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.
 *
 * This project contains code licensed from the Apache Software Foundation under
 * the Apache License, Version 2.0 and original code from project contributors.
 *
 *
 * Original Codehaus Header
 *
 * Copyright (c) 2007 - 2008 fabric3 project contributors
 *
 * Licensed to you under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.  A copy of the license
 * is included in this distrubtion or you may obtain a copy at
 *
 *    http://www.opensource.org/licenses/apache2.0.php
 *
 * 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.
 *
 * This project contains code licensed from the Apache Software Foundation under
 * the Apache License, Version 2.0 and original code from project contributors.
 *
 * Original Apache Header
 *
 * Copyright (c) 2005 - 2006 The Apache Software Foundation
 *
 * Apache Tuscany is an effort undergoing incubation at The Apache Software
 * Foundation (ASF), sponsored by the Apache Web Services PMC. Incubation is
 * required of all newly accepted projects until a further review indicates that
 * the infrastructure, communications, and decision making process have stabilized
 * in a manner consistent with other successful ASF projects. While incubation
 * status is not necessarily a reflection of the completeness or stability of the
 * code, it does indicate that the project has yet to be fully endorsed by the ASF.
 *
 * This product includes software developed by
 * The Apache Software Foundation (http://www.apache.org/).
 */
/*
 * 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.sca4j.resource.generator;

import java.net.URI;

import org.oasisopen.sca.annotation.EagerInit;
import org.oasisopen.sca.annotation.Init;
import org.oasisopen.sca.annotation.Reference;
import org.sca4j.resource.model.SystemSourcedResource;
import org.sca4j.resource.model.SystemSourcedWireTargetDefinition;
import org.sca4j.spi.generator.GenerationException;
import org.sca4j.spi.generator.GeneratorRegistry;
import org.sca4j.spi.generator.ResourceWireGenerator;
import org.sca4j.spi.model.instance.LogicalResource;

/**
 * @version $Revision$ $Date$
 */
@SuppressWarnings("unchecked")
@EagerInit
public class SystemSourcedResourceWireGenerator implements ResourceWireGenerator {

    private static final String SYSTEM_URI = "sca4j://runtime/";

    private GeneratorRegistry registry;

    /**
     * @param registry Injected registry.
     */
    @Reference
    public void setRegistry(@Reference GeneratorRegistry registry) {
        this.registry = registry;
    }

    /**
     * Registers with the registry.
     */
    @Init
    public void start() {
        registry.register(SystemSourcedResource.class, this);
    }

    public SystemSourcedWireTargetDefinition generateWireTargetDefinition(LogicalResource logicalResource)
            throws GenerationException {

        SystemSourcedResource resourceDefinition = logicalResource.getResourceDefinition();
        String mappedName = resourceDefinition.getMappedName();

        if (mappedName == null) {
            throw new MappedNameNotFoundException();
        }

        URI targetUri = URI.create(SYSTEM_URI + mappedName);

        SystemSourcedWireTargetDefinition wtd = new SystemSourcedWireTargetDefinition(resourceDefinition.getName(), resourceDefinition.getResourceType());
        wtd.setOptimizable(true);
        wtd.setUri(targetUri);

        return wtd;

    }

}