/*
* 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.beam.runners.spark.translation;
import java.io.Closeable;
import java.io.IOException;
import org.apache.beam.runners.core.DoFnRunner;
import org.apache.beam.runners.core.metrics.MetricsContainerImpl;
import org.apache.beam.runners.core.metrics.MetricsContainerStepMap;
import org.apache.beam.sdk.metrics.MetricsContainer;
import org.apache.beam.sdk.metrics.MetricsEnvironment;
import org.apache.beam.sdk.state.TimeDomain;
import org.apache.beam.sdk.transforms.windowing.BoundedWindow;
import org.apache.beam.sdk.util.WindowedValue;
import org.apache.spark.Accumulator;
import org.joda.time.Instant;
/**
* DoFnRunner decorator which registers {@link MetricsContainerImpl}.
*/
class DoFnRunnerWithMetrics<InputT, OutputT> implements DoFnRunner<InputT, OutputT> {
private final DoFnRunner<InputT, OutputT> delegate;
private final String stepName;
private final Accumulator<MetricsContainerStepMap> metricsAccum;
DoFnRunnerWithMetrics(
String stepName,
DoFnRunner<InputT, OutputT> delegate,
Accumulator<MetricsContainerStepMap> metricsAccum) {
this.delegate = delegate;
this.stepName = stepName;
this.metricsAccum = metricsAccum;
}
@Override
public void startBundle() {
try (Closeable ignored = MetricsEnvironment.scopedMetricsContainer(metricsContainer())) {
delegate.startBundle();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Override
public void processElement(final WindowedValue<InputT> elem) {
try (Closeable ignored = MetricsEnvironment.scopedMetricsContainer(metricsContainer())) {
delegate.processElement(elem);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Override
public void onTimer(final String timerId, final BoundedWindow window, final Instant timestamp,
final TimeDomain timeDomain) {
try (Closeable ignored = MetricsEnvironment.scopedMetricsContainer(metricsContainer())) {
delegate.onTimer(timerId, window, timestamp, timeDomain);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Override
public void finishBundle() {
try (Closeable ignored = MetricsEnvironment.scopedMetricsContainer(metricsContainer())) {
delegate.finishBundle();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
private MetricsContainer metricsContainer() {
return metricsAccum.localValue().getContainer(stepName);
}
}