| /* |
| * 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.uima.ducc.agent.metrics.collectors; |
| |
| import java.io.BufferedReader; |
| import java.io.InputStreamReader; |
| import java.lang.management.ManagementFactory; |
| import java.lang.management.OperatingSystemMXBean; |
| import java.util.concurrent.Callable; |
| |
| import org.apache.uima.ducc.common.node.metrics.NodeCpuInfo; |
| |
| public class NodeCpuCollector implements Callable<NodeCpuInfo> { |
| |
| public NodeCpuInfo call() throws Exception { |
| OperatingSystemMXBean osBean = ManagementFactory.getOperatingSystemMXBean(); |
| return new NodeCpuInfo(osBean.getAvailableProcessors(), String.valueOf(getCPULoad())); |
| } |
| |
| private double getCPULoad() throws Exception { |
| double cpu = 0.0; |
| InputStreamReader in = null; |
| String[] command = { "/bin/sh", "-c", |
| "/bin/grep 'cpu' /proc/stat | /bin/awk '{usage=($2+$4)*100/($2+$4+$5)} END {print usage}'" }; |
| try { |
| ProcessBuilder pb = new ProcessBuilder(); |
| pb.command(command); |
| |
| pb.redirectErrorStream(true); |
| Process swapCollectorProcess = pb.start(); |
| in = new InputStreamReader(swapCollectorProcess.getInputStream()); |
| BufferedReader reader = new BufferedReader(in); |
| String line = null; |
| while ((line = reader.readLine()) != null) { |
| System.out.println(line); |
| try { |
| cpu = Double.parseDouble(line.trim()); |
| } catch (NumberFormatException e) { |
| cpu = 0; |
| e.printStackTrace(); |
| } |
| } |
| } catch (Exception e) { |
| throw e; |
| } finally { |
| if (in != null) { |
| try { |
| in.close(); |
| } catch (Exception e) { |
| } |
| |
| } |
| } |
| |
| return cpu; |
| } |
| } |