/*
* Copyright © 2016 Cask Data, Inc.
*
* Licensed 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 co.cask.cdap.data2.audit;
import co.cask.cdap.common.conf.CConfiguration;
import co.cask.cdap.common.conf.Constants;
import co.cask.cdap.common.runtime.RuntimeModule;
import com.google.inject.Inject;
import com.google.inject.Injector;
import com.google.inject.Module;
import com.google.inject.PrivateModule;
import com.google.inject.Provider;
import com.google.inject.Scopes;
import com.google.inject.Singleton;
/**
* Guice bindings for publishing audit.
*/
public class AuditModule extends RuntimeModule {
@Override
public Module getInMemoryModules() {
return new PrivateModule() {
@Override
protected void configure() {
bind(AuditPublisher.class).to(InMemoryAuditPublisher.class);
bind(InMemoryAuditPublisher.class).in(Singleton.class);
expose(AuditPublisher.class);
expose(InMemoryAuditPublisher.class);
}
};
}
@Override
public Module getStandaloneModules() {
return new PrivateModule() {
@Override
protected void configure() {
bind(AuditPublisher.class).toProvider(KafkaAuditPublisherProvider.class).in(Scopes.SINGLETON);
expose(AuditPublisher.class);
}
};
}
@Override
public Module getDistributedModules() {
return new PrivateModule() {
@Override
protected void configure() {
bind(AuditPublisher.class).toProvider(KafkaAuditPublisherProvider.class).in(Scopes.SINGLETON);
expose(AuditPublisher.class);
}
};
}
@SuppressWarnings("unused")
private static class KafkaAuditPublisherProvider implements Provider<AuditPublisher> {
private final Injector injector;
private final CConfiguration cConf;
@Inject
public KafkaAuditPublisherProvider(Injector injector, CConfiguration cConf) {
this.injector = injector;
this.cConf = cConf;
}
@Override
public AuditPublisher get() {
if (cConf.getBoolean(Constants.Audit.ENABLED, false)) {
return injector.getInstance(KafkaAuditPublisher.class);
}
return injector.getInstance(NoOpAuditPublisher.class);
}
}
}