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/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2012, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.jboss.as.ejb3.context;

import javax.ejb.EJBContext;

import org.jboss.as.ee.component.InjectionSource;
import org.jboss.as.ee.component.deployers.EEResourceReferenceProcessor;
import org.jboss.as.naming.ManagedReference;
import org.jboss.as.naming.ManagedReferenceFactory;
import org.jboss.as.server.deployment.DeploymentPhaseContext;
import org.jboss.as.server.deployment.DeploymentUnitProcessingException;
import org.jboss.msc.inject.Injector;
import org.jboss.msc.service.ServiceBuilder;

/**
 * Handler for EjbContext JNDI bindings
 *
 * @author Stuart Douglas
 */
public class EjbContextResourceReferenceProcessor implements EEResourceReferenceProcessor {

    private final Class type;

    public EjbContextResourceReferenceProcessor(final Class type) {
        this.type = type;
    }

    @Override
    public String getResourceReferenceType() {
        return type.getName();
    }

    @Override
    public InjectionSource getResourceReferenceBindingSource() throws DeploymentUnitProcessingException {
        return new EjbContextInjectionSource();
    }

    private static final ManagedReference ejbContextManagedReference = new ManagedReference() {
        public void release() {
        }

        public Object getInstance() {
            return CurrentInvocationContext.getEjbContext();
        }
    };

    private static final ManagedReferenceFactory ejbContextManagedReferenceFactory = new ManagedReferenceFactory() {
        public ManagedReference getReference() {
            return ejbContextManagedReference;
        }
    };

    private static class EjbContextInjectionSource extends InjectionSource {

        @Override
        public void getResourceValue(final ResolutionContext resolutionContext, final ServiceBuilder serviceBuilder, final DeploymentPhaseContext phaseContext, final Injector injector) throws DeploymentUnitProcessingException {
            injector.inject(ejbContextManagedReferenceFactory);
        }

        public boolean equals(Object other) {
            return other instanceof EjbContextInjectionSource;
        }

        public int hashCode() {
            return 45647;
        }
    }
}