org.elasticsearch.monitor.fs.FsService Maven / Gradle / Ivy
/*
* Licensed to ElasticSearch and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. ElasticSearch 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.elasticsearch.monitor.fs;
import org.elasticsearch.common.component.AbstractComponent;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.unit.TimeValue;
/**
*/
public class FsService extends AbstractComponent {
private final FsProbe probe;
private final TimeValue refreshInterval;
private FsStats cachedStats;
@Inject
public FsService(Settings settings, FsProbe probe) {
super(settings);
this.probe = probe;
this.cachedStats = probe.stats();
this.refreshInterval = componentSettings.getAsTime("refresh_interval", TimeValue.timeValueSeconds(1));
logger.debug("Using probe [{}] with refresh_interval [{}]", probe, refreshInterval);
}
public synchronized FsStats stats() {
if ((System.currentTimeMillis() - cachedStats.getTimestamp()) > refreshInterval.millis()) {
cachedStats = probe.stats();
}
return cachedStats;
}
}