CPUParser.java
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上传日期:2018-01-08
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文件大小:3k
- /**
- * 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 {
- StringBuffer sb = Environment.runCommand("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");
- }
- }