org.jvnet.hk2.external.generator.ServiceLocatorGeneratorImpl Maven / Gradle / Ivy

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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2012 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
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 * GPL Classpath Exception:
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 *
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package org.jvnet.hk2.external.generator;

import javax.inject.Singleton;

import org.glassfish.hk2.api.ClassAnalyzer;
import org.glassfish.hk2.api.DynamicConfigurationService;
import org.glassfish.hk2.api.ServiceLocator;
import org.glassfish.hk2.extension.ServiceLocatorGenerator;
import org.glassfish.hk2.utilities.BuilderHelper;
import org.jvnet.hk2.internal.DefaultClassAnalyzer;
import org.jvnet.hk2.internal.DynamicConfigurationImpl;
import org.jvnet.hk2.internal.DynamicConfigurationServiceImpl;
import org.jvnet.hk2.internal.ServiceLocatorImpl;
import org.jvnet.hk2.internal.Utilities;

/**
 * @author jwells
 *
 */
public class ServiceLocatorGeneratorImpl implements ServiceLocatorGenerator {
    private ServiceLocatorImpl initialize(String name, ServiceLocator parent) {
        if (parent != null && !(parent instanceof ServiceLocatorImpl)) {
            throw new AssertionError("parent must be a " + ServiceLocatorImpl.class.getName() +
                    " instead it is a " + parent.getClass().getName());
        }
        
        ServiceLocatorImpl sli = new ServiceLocatorImpl(name, (ServiceLocatorImpl) parent);
        
        DynamicConfigurationImpl dci = new DynamicConfigurationImpl(sli);
        
        // The service locator itself
        dci.bind(Utilities.getLocatorDescriptor(sli));
        
        // The injection resolver for three thirty
        dci.addActiveDescriptor(Utilities.getThreeThirtyDescriptor(sli));
        
        // The dynamic configuration utility
        dci.bind(BuilderHelper.link(DynamicConfigurationServiceImpl.class, false).
                to(DynamicConfigurationService.class).
                in(Singleton.class.getName()).
                localOnly().
                build());
        
        dci.bind(BuilderHelper.createConstantDescriptor(
                new DefaultClassAnalyzer(sli)));
        
        dci.commit();
        
        return sli;
    }

    /* (non-Javadoc)
     * @see org.glassfish.hk2.extension.ServiceLocatorGenerator#create(java.lang.String, org.glassfish.hk2.api.Module)
     */
    @Override
    public ServiceLocator create(String name, ServiceLocator parent) {
        ServiceLocatorImpl retVal = initialize(name, parent);
        
        return retVal;
    }

}