| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed 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 com.android.loganalysis.parser; |
| |
| import com.android.loganalysis.item.CpuInfoItem; |
| |
| import java.util.List; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * A {@link IParser} to handle the output of {@code cpuinfo}. |
| */ |
| public class CpuInfoParser implements IParser { |
| |
| // Example: |
| // 0.1% 170/surfaceflinger: 0% user + 0% kernel |
| private static final Pattern USAGE_PREFIX = Pattern.compile( |
| "^ *\\+?(\\d+\\.?\\d*)\\% (\\d+)/([^ ]+): "); |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public CpuInfoItem parse(List<String> lines) { |
| CpuInfoItem item = new CpuInfoItem(); |
| for (String line : lines) { |
| Matcher m = USAGE_PREFIX.matcher(line); |
| if (!m.lookingAt()) continue; |
| |
| if (m.groupCount() != 3) continue; |
| |
| int pid = Integer.parseInt(m.group(2)); |
| double percent = Double.parseDouble(m.group(1)); |
| String name = m.group(3); |
| item.addRow(pid, percent, name); |
| } |
| |
| return item; |
| } |
| } |