| /* |
| * 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.dataflow.worker; |
| |
| import edu.umd.cs.findbugs.annotations.SuppressFBWarnings; |
| import org.apache.beam.runners.core.metrics.ExecutionStateTracker; |
| import org.apache.beam.sdk.metrics.Counter; |
| import org.apache.beam.sdk.metrics.Distribution; |
| import org.apache.beam.sdk.metrics.Gauge; |
| import org.apache.beam.sdk.metrics.MetricName; |
| import org.apache.beam.sdk.metrics.MetricsContainer; |
| import org.apache.beam.sdk.metrics.MetricsEnvironment; |
| |
| /** |
| * An implementation of {@link MetricsContainer} that reads the current execution state (tracked in |
| * a field) to determine the current step. This allows the {@link MetricsEnvironment} to only be |
| * updated once on entry to the entire stage, rather than in between every step. |
| */ |
| // not clear why the interface extends Serializable |
| // https://issues.apache.org/jira/browse/BEAM-6573 |
| @SuppressFBWarnings("SE_BAD_FIELD") |
| public class DataflowMetricsContainer implements MetricsContainer { |
| |
| private final ExecutionStateTracker executionStateTracker; |
| |
| public DataflowMetricsContainer(ExecutionStateTracker executionStateTracker) { |
| this.executionStateTracker = executionStateTracker; |
| } |
| |
| private MetricsContainer getCurrentContainer() { |
| DataflowOperationContext.DataflowExecutionState executionState = |
| (DataflowOperationContext.DataflowExecutionState) executionStateTracker.getCurrentState(); |
| return executionState.getMetricsContainer(); |
| } |
| |
| @Override |
| public Counter getCounter(MetricName metricName) { |
| return getCurrentContainer().getCounter(metricName); |
| } |
| |
| @Override |
| public Distribution getDistribution(MetricName metricName) { |
| return getCurrentContainer().getDistribution(metricName); |
| } |
| |
| @Override |
| public Gauge getGauge(MetricName metricName) { |
| return getCurrentContainer().getGauge(metricName); |
| } |
| } |