stack/core/src/main/java/org/apache/usergrid/persistence/PersistenceModule.java

/*
 * 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.usergrid.persistence;


import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.ListableBeanFactory;
import org.springframework.context.ApplicationContext;


import com.google.inject.AbstractModule;
import com.google.inject.Provider;
import com.google.inject.spring.SpringIntegration;


/**
 * Replacement for configuration of our spring modules with guice
 */
public class PersistenceModule extends AbstractModule {



    private final ApplicationContext applicationContext;

    public PersistenceModule( final ApplicationContext applicationContext ) {

        this.applicationContext = applicationContext;
    }




    @Override
    protected void configure() {

        //bind the application context to our guice instance

        final BeanFactory beanFactory = applicationContext.getAutowireCapableBeanFactory();
        bind( BeanFactory.class).toInstance( beanFactory);

        //create our bridge and put the EMF into guice.  Ultimately all spring needs removed and we need to just use guice

        final Provider<EntityManagerFactory> emfProvider = SpringIntegration.fromSpring( EntityManagerFactory.class, "entityManagerFactory" );

        bind( EntityManagerFactory.class ).toProvider(  emfProvider );
    }


}