EventLogTags.java revision 9066cfe9886ac131c34d59ed0e2d287b0e3c0087
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.util; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.BufferedReader; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.FileReader; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.HashMap; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.regex.Matcher; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.regex.Pattern; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** Parsed representation of /etc/event-log-tags. */ 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class EventLogTags { 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final static String TAG = "EventLogTags"; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final static String TAGS_FILE = "/etc/event-log-tags"; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class Description { 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final int mTag; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final String mName; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Parse parameter descriptions when anyone has a use for them. 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Description(int tag, String name) { 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTag = tag; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mName = name; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final static Pattern COMMENT_PATTERN = Pattern.compile( 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "^\\s*(#.*)?$"); 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final static Pattern TAG_PATTERN = Pattern.compile( 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "^\\s*(\\d+)\\s+(\\w+)\\s*(\\(.*\\))?\\s*$"); 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final HashMap<String, Description> mNameMap = 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new HashMap<String, Description>(); 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final HashMap<Integer, Description> mTagMap = 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new HashMap<Integer, Description>(); 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public EventLogTags() throws IOException { 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(new BufferedReader(new FileReader(TAGS_FILE), 256)); 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public EventLogTags(BufferedReader input) throws IOException { 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String line; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while ((line = input.readLine()) != null) { 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matcher m = COMMENT_PATTERN.matcher(line); 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (m.matches()) continue; 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project m = TAG_PATTERN.matcher(line); 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (m.matches()) { 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tag = Integer.parseInt(m.group(1)); 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Description d = new Description(tag, m.group(2)); 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNameMap.put(d.mName, d); 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTagMap.put(d.mTag, d); 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (NumberFormatException e) { 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Error in event log tags entry: " + line, e); 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(TAG, "Can't parse event log tags entry: " + line); 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Description get(String name) { 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mNameMap.get(name); 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Description get(int tag) { 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTagMap.get(tag); 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 91