| /* |
| * 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.lang.management.ManagementFactory; |
| import java.lang.management.OperatingSystemMXBean; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Modifier; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| |
| import org.apache.uima.ducc.common.agent.metrics.memory.DuccNodeMemory; |
| import org.apache.uima.ducc.common.agent.metrics.memory.NodeMemory; |
| |
| public class DefaultNodeMemoryCollector implements CallableMemoryCollector { |
| // private static final String TOTAL_MEMORY_SIZE="getTotalPhysicalMemorySize"; |
| private static final String FREE_PHYSICAL_MEMORY_SIZE = "getFreePhysicalMemorySize"; |
| |
| private static final String FREE_SWAP_MEMORY_SIZE = "getFreeSwapSpaceSize"; |
| |
| private static final String TOTAL_SWAP_SPACE_SIZE = "getTotalSwapSpaceSize"; |
| |
| private long fakeMemorySize = -1; |
| |
| public DefaultNodeMemoryCollector() { |
| String tmp; |
| if ((tmp = System.getProperty("ducc.agent.node.metrics.fake.memory.size")) != null) { |
| try { |
| fakeMemorySize = Long.parseLong(tmp); |
| } catch (NumberFormatException e) { |
| e.printStackTrace(); |
| } |
| } |
| } |
| |
| public NodeMemory call() throws Exception { |
| return collect(); |
| } |
| |
| private void setMetric(String metricName, long metricValue, DuccNodeMemory nodeMemory) { |
| try { |
| if (fakeMemorySize != -1) { |
| nodeMemory.setMemTotal(fakeMemorySize); |
| } else { |
| nodeMemory.setMemTotal(Runtime.getRuntime().totalMemory()); |
| } |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| if (metricName.equalsIgnoreCase(FREE_PHYSICAL_MEMORY_SIZE)) { |
| if (fakeMemorySize != -1) { // UIMA-4114 |
| nodeMemory.setMemFree(fakeMemorySize); |
| } else { |
| nodeMemory.setMemFree(metricValue); |
| } |
| } else if (metricName.equalsIgnoreCase(FREE_SWAP_MEMORY_SIZE)) { |
| nodeMemory.setSwapFree(metricValue); |
| } else if (metricName.equalsIgnoreCase(TOTAL_SWAP_SPACE_SIZE)) { |
| nodeMemory.setSwapTotal(metricValue); |
| } |
| } |
| |
| private DuccNodeMemory collect() { |
| DuccNodeMemory nodeMemory = new DuccNodeMemory(); |
| OperatingSystemMXBean operatingSystemMXBean = ManagementFactory.getOperatingSystemMXBean(); |
| for (Method method : operatingSystemMXBean.getClass().getDeclaredMethods()) { |
| method.setAccessible(true); |
| if (method.getName().startsWith("get") && Modifier.isPublic(method.getModifiers())) { |
| Long value; |
| try { |
| value = (Long) method.invoke(operatingSystemMXBean); |
| } catch (Exception e) { |
| value = 0L; |
| } // try |
| setMetric(method.getName(), value, nodeMemory); |
| } // if |
| } // for |
| return nodeMemory; |
| } |
| |
| public static void main(String[] args) { |
| try { |
| DefaultNodeMemoryCollector collector = new DefaultNodeMemoryCollector(); |
| ExecutorService pool = Executors.newFixedThreadPool(1); |
| Future<NodeMemory> nmiFuture = pool.submit(collector); |
| NodeMemory nodeMemory = nmiFuture.get(); |
| System.out.println("Total Memory:" + nodeMemory.getMemTotal()); |
| System.out.println("Total Free Memory:" + nodeMemory.getMemFree()); |
| System.out.println("Total Swap Space Size:" + nodeMemory.getSwapTotal()); |
| System.out.println("Total Free Swap Space Size:" + nodeMemory.getSwapFree()); |
| |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| } |