/*
* Copyright © 2015 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.etl.realtime;
import co.cask.cdap.etl.api.PipelineConfigurer;
import co.cask.cdap.etl.api.realtime.DataWriter;
import co.cask.cdap.etl.api.realtime.RealtimeContext;
import co.cask.cdap.etl.api.realtime.RealtimeSink;
import co.cask.cdap.etl.log.LogContext;
import java.util.concurrent.Callable;
/**
* Wrapper around {@link RealtimeSink} that makes sure logging is set up correctly.
*
* @param <I> the input type
*/
public class LoggedRealtimeSink<I> extends RealtimeSink<I> {
private final String name;
private final RealtimeSink<I> realtimeSink;
public LoggedRealtimeSink(String name, RealtimeSink<I> realtimeSink) {
this.name = name;
this.realtimeSink = realtimeSink;
}
@Override
public int write(final Iterable<I> objects, final DataWriter dataWriter) throws Exception {
return LogContext.run(new Callable<Integer>() {
@Override
public Integer call() throws Exception {
return realtimeSink.write(objects, dataWriter);
}
}, name);
}
@Override
public void configurePipeline(final PipelineConfigurer pipelineConfigurer) {
LogContext.runUnchecked(new Callable<Void>() {
@Override
public Void call() {
realtimeSink.configurePipeline(pipelineConfigurer);
return null;
}
}, name);
}
@Override
public void initialize(final RealtimeContext context) throws Exception {
LogContext.run(new Callable<Void>() {
@Override
public Void call() throws Exception {
realtimeSink.initialize(context);
return null;
}
}, name);
}
@Override
public void destroy() {
LogContext.runUnchecked(new Callable<Void>() {
@Override
public Void call() throws Exception {
realtimeSink.destroy();
return null;
}
}, name);
}
}