| /* |
| * |
| * 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.qpid.info; |
| |
| import java.net.InetAddress; |
| import java.net.UnknownHostException; |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Properties; |
| import java.util.TreeMap; |
| import java.util.Map.Entry; |
| |
| /** |
| * Collector for system specific information |
| */ |
| public class SystemInfo |
| { |
| |
| private static Map<String, String> sysInfoMap = new TreeMap<String, String>(); |
| |
| private static final List<String> sysProps = Arrays.asList( |
| "java.class.path", "java.home", "java.vm.name", "java.vm.vendor", |
| "java.vm.version", "java.class.version", "java.runtime.version", |
| "os.arch", "os.name", "os.version", "sun.arch.data.model", |
| "user.home", "user.dir", "user.name", "user.timezone"); |
| |
| /** |
| * getInfo collects all the properties specified in sysprops list |
| * @return A Map<String,String> |
| */ |
| public static Map<String, String> getInfo() |
| { |
| |
| // Get the hostname |
| try |
| { |
| InetAddress addr = InetAddress.getLocalHost(); |
| String hostname = addr.getHostName(); |
| sysInfoMap.put("hostname", hostname); |
| sysInfoMap.put("ip", addr.getHostAddress()); |
| } |
| catch (UnknownHostException e) |
| { |
| // drop everything to be silent |
| } |
| // Get the runtime info |
| sysInfoMap.put("CPUCores", Runtime.getRuntime().availableProcessors() |
| + ""); |
| sysInfoMap.put("Maximum_Memory", Runtime.getRuntime().maxMemory() + ""); |
| sysInfoMap.put("Free_Memory", Runtime.getRuntime().freeMemory() + ""); |
| |
| // Gather the selected system props |
| Properties sysprops = System.getProperties(); |
| String propName; |
| for (Iterator<Entry<Object, Object>> it = sysprops.entrySet() |
| .iterator(); it.hasNext();) |
| { |
| Entry<Object, Object> en = it.next(); |
| propName = en.getKey().toString(); |
| if (sysProps.indexOf(propName) >= 0) |
| { |
| sysInfoMap.put(propName, en.getValue().toString()); |
| } |
| } |
| |
| return sysInfoMap; |
| |
| } |
| |
| } |