org.apache.gobblin.util.eventbus.EventBusFactory Maven / Gradle / Ivy
/*
* 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.gobblin.util.eventbus;
import java.io.IOException;
import com.google.common.eventbus.EventBus;
import org.apache.gobblin.broker.ResourceInstance;
import org.apache.gobblin.broker.iface.ConfigView;
import org.apache.gobblin.broker.iface.NotConfiguredException;
import org.apache.gobblin.broker.iface.ScopeType;
import org.apache.gobblin.broker.iface.ScopedConfigView;
import org.apache.gobblin.broker.iface.SharedResourceFactory;
import org.apache.gobblin.broker.iface.SharedResourceFactoryResponse;
import org.apache.gobblin.broker.iface.SharedResourcesBroker;
/**
* A {@link SharedResourceFactory} for creating {@link EventBus} instances.
* @param
*/
public class EventBusFactory> implements SharedResourceFactory {
public static final String FACTORY_NAME = "eventbus";
@Override
public String getName() {
return FACTORY_NAME;
}
public static > EventBus get(String eventBusName, SharedResourcesBroker broker)
throws IOException {
try {
return broker.getSharedResource(new EventBusFactory(), new EventBusKey(eventBusName));
} catch (NotConfiguredException e) {
throw new IOException(e);
}
}
@Override
public SharedResourceFactoryResponse createResource(SharedResourcesBroker broker,
ScopedConfigView config) {
EventBusKey eventBusKey = config.getKey();
EventBus eventBus = new EventBus(eventBusKey.getSourceClassName());
return new ResourceInstance<>(eventBus);
}
@Override
public S getAutoScope(SharedResourcesBroker broker, ConfigView config) {
return broker.selfScope().getType().rootScope();
}
}