| /** |
| * 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.hadoop.contrib.failmon; |
| |
| import java.net.InetAddress; |
| import java.util.Calendar; |
| |
| /********************************************************** |
| * Objects of this class parse the /proc/cpuinfo file to |
| * gather information about present processors in the system. |
| * |
| **********************************************************/ |
| |
| |
| public class CPUParser extends ShellParser { |
| |
| /** |
| * Constructs a CPUParser |
| */ |
| public CPUParser() { |
| super(); |
| } |
| |
| /** |
| * Reads and parses /proc/cpuinfo and creates an appropriate |
| * EventRecord that holds the desirable information. |
| * |
| * @param s unused parameter |
| * |
| * @return the EventRecord created |
| */ |
| public EventRecord query(String s) throws Exception { |
| CharSequence sb = Environment.runCommandGeneric("cat /proc/cpuinfo"); |
| EventRecord retval = new EventRecord(InetAddress.getLocalHost() |
| .getCanonicalHostName(), InetAddress.getAllByName(InetAddress.getLocalHost() |
| .getHostName()), Calendar.getInstance(), "CPU", "Unknown", "CPU", "-"); |
| |
| retval.set("processors", findAll("\\s*processor\\s*:\\s*(\\d+)", sb |
| .toString(), 1, ", ")); |
| |
| retval.set("model name", findPattern("\\s*model name\\s*:\\s*(.+)", sb |
| .toString(), 1)); |
| |
| retval.set("frequency", findAll("\\s*cpu\\s*MHz\\s*:\\s*(\\d+)", sb |
| .toString(), 1, ", ")); |
| |
| retval.set("physical id", findAll("\\s*physical\\s*id\\s*:\\s*(\\d+)", sb |
| .toString(), 1, ", ")); |
| |
| retval.set("core id", findAll("\\s*core\\s*id\\s*:\\s*(\\d+)", sb |
| .toString(), 1, ", ")); |
| |
| return retval; |
| } |
| |
| /** |
| * Invokes query() to do the parsing and handles parsing errors. |
| * |
| * @return an array of EventRecords that holds one element that represents |
| * the current state of /proc/cpuinfo |
| */ |
| |
| public EventRecord[] monitor() { |
| |
| EventRecord[] recs = new EventRecord[1]; |
| |
| try { |
| recs[0] = query(null); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| |
| return recs; |
| } |
| |
| /** |
| * Return a String with information about this class |
| * |
| * @return A String describing this class |
| */ |
| public String getInfo() { |
| return ("CPU Info parser"); |
| } |
| |
| } |