/*
* 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.aggregators.metrics.sink;
import com.codahale.metrics.MetricFilter;
import com.codahale.metrics.MetricRegistry;
import com.google.common.base.Predicates;
import com.google.common.collect.Iterables;
import java.util.Properties;
import org.apache.beam.runners.spark.metrics.WithMetricsSupport;
import org.apache.spark.metrics.sink.Sink;
/**
* An in-memory {@link Sink} implementation for tests.
*/
public class InMemoryMetrics implements Sink {
private static WithMetricsSupport extendedMetricsRegistry;
private static MetricRegistry internalMetricRegistry;
@SuppressWarnings("UnusedParameters")
public InMemoryMetrics(final Properties properties,
final MetricRegistry metricRegistry,
final org.apache.spark.SecurityManager securityMgr) {
extendedMetricsRegistry = WithMetricsSupport.forRegistry(metricRegistry);
internalMetricRegistry = metricRegistry;
}
@SuppressWarnings({"unchecked", "WeakerAccess"})
public static <T> T valueOf(final String name) {
final T retVal;
// this might fail in case we have multiple aggregators with the same suffix after
// the last dot, but it should be good enough for tests.
if (extendedMetricsRegistry != null
&& Iterables.any(extendedMetricsRegistry.getGauges().keySet(),
Predicates.containsPattern(name + "$"))) {
String key =
Iterables.find(extendedMetricsRegistry.getGauges().keySet(),
Predicates.containsPattern(name + "$"));
retVal = (T) extendedMetricsRegistry.getGauges().get(key).getValue();
} else {
retVal = null;
}
return retVal;
}
@SuppressWarnings("WeakerAccess")
public static void clearAll() {
if (internalMetricRegistry != null) {
internalMetricRegistry.removeMatching(MetricFilter.ALL);
}
}
@Override
public void start() {
}
@Override
public void stop() {
}
@Override
public void report() {
}
}