1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.loganalysis.parser; 17 18 import com.android.loganalysis.item.CpuInfoItem; 19 20 import java.util.List; 21 import java.util.regex.Matcher; 22 import java.util.regex.Pattern; 23 24 /** 25 * A {@link IParser} to handle the output of {@code cpuinfo}. 26 */ 27 public class CpuInfoParser implements IParser { 28 29 // Example: 30 // 0.1% 170/surfaceflinger: 0% user + 0% kernel 31 private static final Pattern USAGE_PREFIX = Pattern.compile( 32 "^ *\\+?(\\d+\\.?\\d*)\\% (\\d+)/([^ ]+): "); 33 34 /** 35 * {@inheritDoc} 36 */ 37 @Override 38 public CpuInfoItem parse(List<String> lines) { 39 CpuInfoItem item = new CpuInfoItem(); 40 for (String line : lines) { 41 Matcher m = USAGE_PREFIX.matcher(line); 42 if (!m.lookingAt()) continue; 43 44 if (m.groupCount() != 3) continue; 45 46 int pid = Integer.parseInt(m.group(2)); 47 double percent = Double.parseDouble(m.group(1)); 48 String name = m.group(3); 49 item.addRow(pid, percent, name); 50 } 51 52 return item; 53 } 54 } 55
