/*
* 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.shindig.social.opensocial.jpa.spi;
import com.google.inject.AbstractModule;
import com.google.inject.CreationException;
import com.google.inject.Scopes;
import com.google.inject.name.Names;
import com.google.inject.spi.Message;
import org.apache.commons.io.IOUtils;
import org.apache.shindig.social.opensocial.jpa.eclipselink.EclipseEntityManagerProvider;
import org.apache.shindig.social.opensocial.spi.ActivityService;
import org.apache.shindig.social.opensocial.spi.AppDataService;
import org.apache.shindig.social.opensocial.spi.PersonService;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.Properties;
import javax.persistence.EntityManager;
/**
*
*/
public class JPASocialModule extends AbstractModule {
private final static String DEFAULT_PROPERTIES = "socialjpa.properties";
private Properties properties;
private EntityManager entityManager;
/**
*
*/
public JPASocialModule() {
this(null);
}
/**
*
*/
public JPASocialModule(EntityManager entityManager) {
this.entityManager = entityManager;
InputStream is = null;
try {
is = this.getClass().getClassLoader().getResourceAsStream(DEFAULT_PROPERTIES);
if (is == null) {
System.err.println("Cant loacate properties");
throw new IOException("Failed to open " + DEFAULT_PROPERTIES);
}
properties = new Properties();
properties.load(is);
} catch (IOException e) {
throw new CreationException(Arrays.asList(new Message(
"Unable to load properties: " + DEFAULT_PROPERTIES)));
} finally {
IOUtils.closeQuietly( is );
}
}
/**
* {@inheritDoc}
*
* @see com.google.inject.AbstractModule#configure()
*/
@Override
protected void configure() {
Names.bindProperties(this.binder(), properties);
if (entityManager == null) {
bind(EntityManager.class).toProvider(EclipseEntityManagerProvider.class)
.in(Scopes.SINGLETON);
} else {
bind(EntityManager.class).toInstance(this.entityManager);
}
bind(ActivityService.class).to(ActivityServiceDb.class)
.in(Scopes.SINGLETON);
bind(PersonService.class).to(PersonServiceDb.class).in(Scopes.SINGLETON);
bind(AppDataService.class).to(AppDataServiceDb.class).in(Scopes.SINGLETON);
}
}