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 * This project contains code licensed from the Apache Software Foundation under
 * the Apache License, Version 2.0 and original code from project contributors.
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 * Copyright (c) 2007 - 2008 fabric3 project contributors
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package org.sca4j.jpa.control;

import java.net.URI;
import javax.persistence.PersistenceContextType;

import org.osoa.sca.annotations.EagerInit;
import org.osoa.sca.annotations.Init;
import org.osoa.sca.annotations.Reference;

import org.sca4j.jpa.provision.PersistenceContextWireTargetDefinition;
import org.sca4j.jpa.scdl.PersistenceContextResource;
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 $Revision$ $Date$
 */
@EagerInit
public class PersistenceContextResourceWireGenerator implements ResourceWireGenerator {
    private final GeneratorRegistry registry;

    public PersistenceContextResourceWireGenerator(@Reference GeneratorRegistry registry) {
        this.registry = registry;
    }

    @Init
    public void start() {
        registry.register(PersistenceContextResource.class, this);
    }

    public PersistenceContextWireTargetDefinition generateWireTargetDefinition(LogicalResource logicalResource)
            throws GenerationException {
        URI classLoaderUri = logicalResource.getParent().getClassLoaderId();
        PersistenceContextResource resource = logicalResource.getResourceDefinition();
        String unitName = resource.getUnitName();
        boolean multiThreaded = resource.isMultiThreaded();
        boolean extended = PersistenceContextType.EXTENDED == resource.getType();
        PersistenceContextWireTargetDefinition definition = new PersistenceContextWireTargetDefinition();
        definition.setUnitName(unitName);
        definition.setOptimizable(true);
        definition.setExtended(extended);
        definition.setClassLoaderId(classLoaderUri);
        definition.setMultiThreaded(multiThreaded);
        return definition;
    }

}