/*
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* Copyright 1999-2019 Seata.io Group.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package io.seata.server.metrics;
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import io.seata.config.ConfigurationFactory;
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import io.seata.core.constants.ConfigurationKeys;
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import io.seata.metrics.exporter.Exporter;
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import io.seata.metrics.exporter.ExporterFactory;
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import io.seata.metrics.registry.Registry;
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import io.seata.metrics.registry.RegistryFactory;
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import io.seata.server.event.EventBusManager;
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import java.util.List;
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import static io.seata.common.DefaultValues.DEFAULT_METRICS_ENABLED;
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/**
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* Metrics manager for init
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*
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* @author zhengyangyong
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*/
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public class MetricsManager {
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private static class SingletonHolder {
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private static MetricsManager INSTANCE = new MetricsManager();
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}
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public static final MetricsManager get() {
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return SingletonHolder.INSTANCE;
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}
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private Registry registry;
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public Registry getRegistry() {
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return registry;
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}
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public void init() {
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boolean enabled = ConfigurationFactory.getInstance().getBoolean(
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ConfigurationKeys.METRICS_PREFIX + ConfigurationKeys.METRICS_ENABLED, DEFAULT_METRICS_ENABLED);
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if (enabled) {
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registry = RegistryFactory.getInstance();
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if (registry != null) {
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List<Exporter> exporters = ExporterFactory.getInstanceList();
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//only at least one metrics exporter implement had imported in pom then need register MetricsSubscriber
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if (exporters.size() != 0) {
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exporters.forEach(exporter -> exporter.setRegistry(registry));
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EventBusManager.get().register(new MetricsSubscriber(registry));
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}
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}
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}
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}
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}
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