/*
* 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.stratos.cartridge.agent.statistics.publisher;
import com.sun.management.OperatingSystemMXBean;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.stratos.cartridge.agent.config.CartridgeAgentConfiguration;
import org.apache.stratos.cartridge.agent.util.CartridgeAgentUtils;
import java.lang.management.ManagementFactory;
/**
* Health statistics reader.
*/
public class HealthStatisticsReader {
private static final int MB = 1024 * 1024;
private static final Log log = LogFactory.getLog(HealthStatisticsReader.class);
public static double getMemoryConsumption() {
OperatingSystemMXBean osBean = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
double totalMemory = (double)(osBean.getTotalPhysicalMemorySize()/ MB);
double usedMemory = (double)((totalMemory - (osBean.getFreePhysicalMemorySize() / MB) ));
if(log.isDebugEnabled()) {
log.debug("Calculating memory consumption: [totalMemory] "+totalMemory+" [usedMemory] "+usedMemory);
}
double memoryConsumption = (usedMemory / totalMemory) * 100;
if(log.isDebugEnabled()) {
log.debug("Calculating memory consumption: [percentage] "+memoryConsumption);
}
return memoryConsumption;
}
public static double getLoadAverage() {
double loadAvg = (double)ManagementFactory.getOperatingSystemMXBean().getSystemLoadAverage();
// assume system cores = available cores to JVM
int cores = ManagementFactory.getOperatingSystemMXBean().getAvailableProcessors();
if(log.isDebugEnabled()) {
log.debug("Calculating load average consumption: [loadAverage] "+loadAvg+" [cores] "+cores);
}
double loadAvgPercentage = (loadAvg/cores) * 100;
if(log.isDebugEnabled()) {
log.debug("Calculating load average consumption: [percentage] "+loadAvgPercentage);
}
return loadAvgPercentage;
}
public static boolean allPortsActive() {
return CartridgeAgentUtils.checkPortsActive(CartridgeAgentConfiguration.getInstance().getListenAddress(),
CartridgeAgentConfiguration.getInstance().getPorts());
}
}