com.netflix.genie.web.agent.services.impl.AgentConfigurationServiceImpl Maven / Gradle / Ivy
/*
*
* Copyright 2020 Netflix, 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 com.netflix.genie.web.agent.services.impl;
import com.google.common.collect.Sets;
import com.netflix.genie.common.internal.util.PropertiesMapCache;
import com.netflix.genie.web.agent.services.AgentConfigurationService;
import com.netflix.genie.web.properties.AgentConfigurationProperties;
import com.netflix.genie.web.util.MetricsUtils;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Tag;
import lombok.extern.slf4j.Slf4j;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
/**
* This implementation of {@link AgentConfigurationService} forwards properties set on the server that match a given
* set of regular expressions, plus any additional ones specified in configuration.
* It utilizes a cache to avoid recomputing the set of properties and values for every request.
*
* @author mprimi
* @since 4.0.0
*/
@Slf4j
public class AgentConfigurationServiceImpl implements AgentConfigurationService {
private static final String RELOAD_PROPERTIES_TIMER = "genie.services.agentConfiguration.reloadProperties.timer";
private static final String PROPERTIES_COUNT_TAG = "numProperties";
private final AgentConfigurationProperties agentConfigurationProperties;
private final MeterRegistry registry;
private final PropertiesMapCache propertiesMapCache;
/**
* Constructor.
*
* @param agentConfigurationProperties the properties
* @param propertyMapCache the property map cache
* @param registry the metrics registry
*/
public AgentConfigurationServiceImpl(
final AgentConfigurationProperties agentConfigurationProperties,
final PropertiesMapCache propertyMapCache,
final MeterRegistry registry
) {
this.agentConfigurationProperties = agentConfigurationProperties;
this.propertiesMapCache = propertyMapCache;
this.registry = registry;
}
/**
* {@inheritDoc}
*/
@Override
public Map getAgentProperties() {
final Set tags = Sets.newHashSet();
final long start = System.nanoTime();
try {
final Map propertiesMap = this.propertiesMapCache.get();
tags.add(Tag.of(PROPERTIES_COUNT_TAG, String.valueOf(propertiesMap.size())));
MetricsUtils.addSuccessTags(tags);
return propertiesMap;
} catch (Throwable t) {
MetricsUtils.addFailureTagsWithException(tags, t);
throw t;
} finally {
final long end = System.nanoTime();
this.registry.timer(RELOAD_PROPERTIES_TIMER, tags).record(end - start, TimeUnit.NANOSECONDS);
}
}
}