19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2007 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 19b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackbornimport java.io.PrintWriter; 204887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkeyimport java.lang.reflect.Field; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.reflect.InvocationTargetException; 224887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkeyimport java.lang.reflect.Method; 234887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkeyimport java.lang.reflect.Modifier; 24cb64d430627b71221c588ef5f23599dd34a89ee9Elliott Hughesimport java.util.Locale; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 27a0f8bc51aff98c2e23e73069e447f63397471a0aJesse Wilson * <p>Various utilities for debugging and logging.</p> 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class DebugUtils { 30a0f8bc51aff98c2e23e73069e447f63397471a0aJesse Wilson /** @hide */ public DebugUtils() {} 31a0f8bc51aff98c2e23e73069e447f63397471a0aJesse Wilson 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Filters objects against the <code>ANDROID_OBJECT_FILTER</code> 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * environment variable. This environment variable can filter objects 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * based on their class name and attribute values.</p> 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Here is the syntax for <code>ANDROID_OBJECT_FILTER</code>:</p> 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p><code>ClassName@attribute1=value1@attribute2=value2...</code></p> 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>Examples:</p> 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <ul> 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <li>Select TextView instances: <code>TextView</code></li> 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <li>Select TextView instances of text "Loading" and bottom offset of 22: 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <code>TextView@text=Loading.*@bottom=22</code></li> 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </ul> 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>The class name and the values are regular expressions.</p> 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>This class is useful for debugging and logging purpose:</p> 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <pre> 5234f1ca7b79ff678a651aea4b82e032b798506b37Dave Bort * if (DEBUG) { 5334f1ca7b79ff678a651aea4b82e032b798506b37Dave Bort * if (DebugUtils.isObjectSelected(childView) && LOGV_ENABLED) { 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Log.v(TAG, "Object " + childView + " logged!"); 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * } 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * } 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * </pre> 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p><strong>NOTE</strong>: This method is very expensive as it relies 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * heavily on regular expressions and reflection. Calls to this method 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * should always be stripped out of the release binaries and avoided 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * as much as possible in debug mode.</p> 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param object any object to match against the ANDROID_OBJECT_FILTER 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * environement variable 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if object is selected by the ANDROID_OBJECT_FILTER 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * environment variable, false otherwise 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static boolean isObjectSelected(Object object) { 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean match = false; 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String s = System.getenv("ANDROID_OBJECT_FILTER"); 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (s != null && s.length() > 0) { 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String[] selectors = s.split("@"); 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // first selector == class name 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (object.getClass().getSimpleName().matches(selectors[0])) { 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // check potential attributes 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 1; i < selectors.length; i++) { 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String[] pair = selectors[i].split("="); 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Class<?> klass = object.getClass(); 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Method declaredMethod = null; 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Class<?> parent = klass; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project do { 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project declaredMethod = parent.getDeclaredMethod("get" + 85cb64d430627b71221c588ef5f23599dd34a89ee9Elliott Hughes pair[0].substring(0, 1).toUpperCase(Locale.ROOT) + 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pair[0].substring(1), 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (Class[]) null); 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } while ((parent = klass.getSuperclass()) != null && 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project declaredMethod == null); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (declaredMethod != null) { 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object value = declaredMethod 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project .invoke(object, (Object[])null); 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project match |= (value != null ? 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project value.toString() : "null").matches(pair[1]); 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (NoSuchMethodException e) { 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.printStackTrace(); 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IllegalAccessException e) { 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.printStackTrace(); 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (InvocationTargetException e) { 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project e.printStackTrace(); 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 110a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn /** @hide */ 111a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn public static void buildShortClassTag(Object cls, StringBuilder out) { 112a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (cls == null) { 113a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn out.append("null"); 114a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn } else { 115a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn String simpleName = cls.getClass().getSimpleName(); 116a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (simpleName == null || simpleName.isEmpty()) { 117a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn simpleName = cls.getClass().getName(); 118a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn int end = simpleName.lastIndexOf('.'); 119a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn if (end > 0) { 120a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn simpleName = simpleName.substring(end+1); 121a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn } 122a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn } 123a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn out.append(simpleName); 124a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn out.append('{'); 125a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn out.append(Integer.toHexString(System.identityHashCode(cls))); 126a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn } 127a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn } 128a2ea747faaf5fcd437afbaaf4085cfc29e7c16b8Dianne Hackborn 129b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn /** @hide */ 130b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn public static void printSizeValue(PrintWriter pw, long number) { 131b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn float result = number; 132b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn String suffix = ""; 133b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (result > 900) { 134b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn suffix = "KB"; 135b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn result = result / 1024; 136b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 137b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (result > 900) { 138b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn suffix = "MB"; 139b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn result = result / 1024; 140b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 141b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (result > 900) { 142b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn suffix = "GB"; 143b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn result = result / 1024; 144b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 145b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (result > 900) { 146b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn suffix = "TB"; 147b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn result = result / 1024; 148b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 149b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (result > 900) { 150b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn suffix = "PB"; 151b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn result = result / 1024; 152b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 153b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn String value; 154b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (result < 1) { 155b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn value = String.format("%.2f", result); 156b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } else if (result < 10) { 157b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn value = String.format("%.1f", result); 158b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } else if (result < 100) { 159b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn value = String.format("%.0f", result); 160b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } else { 161b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn value = String.format("%.0f", result); 162b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 163b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn pw.print(value); 164b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn pw.print(suffix); 165b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 166b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn 167b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn /** @hide */ 168b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn public static String sizeValueToString(long number, StringBuilder outBuilder) { 169b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (outBuilder == null) { 170b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn outBuilder = new StringBuilder(32); 171b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 172b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn float result = number; 173b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn String suffix = ""; 174b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (result > 900) { 175b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn suffix = "KB"; 176b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn result = result / 1024; 177b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 178b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (result > 900) { 179b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn suffix = "MB"; 180b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn result = result / 1024; 181b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 182b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (result > 900) { 183b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn suffix = "GB"; 184b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn result = result / 1024; 185b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 186b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (result > 900) { 187b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn suffix = "TB"; 188b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn result = result / 1024; 189b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 190b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (result > 900) { 191b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn suffix = "PB"; 192b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn result = result / 1024; 193b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 194b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn String value; 195b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn if (result < 1) { 196b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn value = String.format("%.2f", result); 197b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } else if (result < 10) { 198b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn value = String.format("%.1f", result); 199b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } else if (result < 100) { 200b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn value = String.format("%.0f", result); 201b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } else { 202b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn value = String.format("%.0f", result); 203b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 204b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn outBuilder.append(value); 205b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn outBuilder.append(suffix); 206b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn return outBuilder.toString(); 207b9a5e4ad30c9add140fd13491419ae66e947809dDianne Hackborn } 2084887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey 2094887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey /** 2104887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey * Use prefixed constants (static final values) on given class to turn value 2114887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey * into human-readable string. 2124887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey * 2134887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey * @hide 2144887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey */ 2154887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey public static String valueToString(Class<?> clazz, String prefix, int value) { 2164887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey for (Field field : clazz.getDeclaredFields()) { 2174887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey final int modifiers = field.getModifiers(); 2184887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey if (Modifier.isStatic(modifiers) && Modifier.isFinal(modifiers) 2194887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey && field.getType().equals(int.class) && field.getName().startsWith(prefix)) { 2204887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey try { 2214887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey if (value == field.getInt(null)) { 2224887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey return field.getName().substring(prefix.length()); 2234887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } 2244887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } catch (IllegalAccessException ignored) { 2254887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } 2264887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } 2274887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } 2284887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey return Integer.toString(value); 2294887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } 2304887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey 2314887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey /** 2324887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey * Use prefixed constants (static final values) on given class to turn flags 2334887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey * into human-readable string. 2344887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey * 2354887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey * @hide 2364887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey */ 2374887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey public static String flagsToString(Class<?> clazz, String prefix, int flags) { 2384887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey final StringBuilder res = new StringBuilder(); 2394887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey 2404887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey for (Field field : clazz.getDeclaredFields()) { 2414887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey final int modifiers = field.getModifiers(); 2424887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey if (Modifier.isStatic(modifiers) && Modifier.isFinal(modifiers) 2434887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey && field.getType().equals(int.class) && field.getName().startsWith(prefix)) { 2444887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey try { 2454887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey final int value = field.getInt(null); 2464887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey if ((flags & value) != 0) { 2474887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey flags &= ~value; 2484887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey res.append(field.getName().substring(prefix.length())).append('|'); 2494887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } 2504887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } catch (IllegalAccessException ignored) { 2514887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } 2524887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } 2534887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } 2544887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey if (flags != 0 || res.length() == 0) { 2554887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey res.append(Integer.toHexString(flags)); 2564887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } else { 2574887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey res.deleteCharAt(res.length() - 1); 2584887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } 2594887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey return res.toString(); 2604887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey } 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 262