1 /* 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 package sun.hotspot.cpuinfo; 26 27 import java.util.List; 28 import java.util.ArrayList; 29 import java.util.Arrays; 30 import java.util.Collections; 31 import java.util.regex.Pattern; 32 import java.util.regex.Matcher; 33 34 public class CPUInfo { 35 36 private List<String> features; 37 private String additionalCPUInfo = ""; 38 39 private static final Pattern additionalCPUInfoRE = 40 Pattern.compile("([^(]*\\([^)]*\\)[^,]*),\\s*"); 41 42 /** 43 * Gather information about CPU from a string containing 44 * CPU features. 45 * 46 * @param cpuFeaturesString The string with CPU features. 47 */ 48 public CPUInfo(String cpuFeaturesString) { 49 Matcher matcher = additionalCPUInfoRE.matcher(cpuFeaturesString); 50 if (matcher.find()) { 51 additionalCPUInfo = matcher.group(1); 52 } 53 String splittedFeatures[] = matcher.replaceAll("").split("(, )| "); 54 55 features = Collections.unmodifiableList(Arrays. 56 asList(splittedFeatures)); 57 } 58 59 /** 60 * Get additional information about CPU. 61 * For example, on X86 in will be family/model/stepping 62 * and number of cores. 63 * 64 * @return additional CPU info 65 */ 66 public String getAdditionalCPUInfo() { 67 return additionalCPUInfo; 68 } 69 70 /** 71 * Get all known features supported by CPU. 72 * 73 * @return unmodifiable list with names of all known features 74 * supported by CPU. 75 */ 76 public List<String> getFeatures() { 77 return features; 78 } 79 80 /** 81 * Check if some feature is supported by CPU. 82 * 83 * @param feature Name of feature to be tested. 84 * @return <b>true</b> if tested feature is supported by CPU. 85 */ 86 public boolean hasFeature(String feature) { 87 return features.contains(feature.toLowerCase()); 88 } 89 }