The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 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 | |
| 17 | package android.test; |
| 18 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 19 | import android.util.Log; |
| 20 | import com.google.android.collect.Maps; |
| 21 | import com.google.android.collect.Sets; |
| 22 | import dalvik.system.DexFile; |
| 23 | |
| 24 | import java.io.File; |
| 25 | import java.io.IOException; |
| 26 | import java.util.Enumeration; |
| 27 | import java.util.Map; |
| 28 | import java.util.Set; |
| 29 | import java.util.TreeSet; |
| 30 | import java.util.regex.Pattern; |
| 31 | import java.util.zip.ZipEntry; |
| 32 | import java.util.zip.ZipFile; |
| 33 | |
| 34 | /** |
| 35 | * Generate {@link ClassPathPackageInfo}s by scanning apk paths. |
| 36 | * |
| 37 | * {@hide} Not needed for 1.0 SDK. |
| 38 | */ |
| 39 | public class ClassPathPackageInfoSource { |
| 40 | |
| 41 | private static final String CLASS_EXTENSION = ".class"; |
| 42 | |
| 43 | private static final ClassLoader CLASS_LOADER |
| 44 | = ClassPathPackageInfoSource.class.getClassLoader(); |
| 45 | |
| 46 | private final SimpleCache<String, ClassPathPackageInfo> cache = |
| 47 | new SimpleCache<String, ClassPathPackageInfo>() { |
| 48 | @Override |
| 49 | protected ClassPathPackageInfo load(String pkgName) { |
| 50 | return createPackageInfo(pkgName); |
| 51 | } |
| 52 | }; |
| 53 | |
| 54 | // The class path of the running application |
| 55 | private final String[] classPath; |
| 56 | private static String[] apkPaths; |
| 57 | |
| 58 | // A cache of jar file contents |
| 59 | private final Map<File, Set<String>> jarFiles = Maps.newHashMap(); |
| 60 | private ClassLoader classLoader; |
| 61 | |
| 62 | ClassPathPackageInfoSource() { |
| 63 | classPath = getClassPath(); |
| 64 | } |
| 65 | |
| 66 | |
| 67 | public static void setApkPaths(String[] apkPaths) { |
| 68 | ClassPathPackageInfoSource.apkPaths = apkPaths; |
| 69 | } |
| 70 | |
| 71 | public ClassPathPackageInfo getPackageInfo(String pkgName) { |
| 72 | return cache.get(pkgName); |
| 73 | } |
| 74 | |
| 75 | private ClassPathPackageInfo createPackageInfo(String packageName) { |
| 76 | Set<String> subpackageNames = new TreeSet<String>(); |
| 77 | Set<String> classNames = new TreeSet<String>(); |
| 78 | Set<Class<?>> topLevelClasses = Sets.newHashSet(); |
| 79 | findClasses(packageName, classNames, subpackageNames); |
| 80 | for (String className : classNames) { |
| 81 | if (className.endsWith(".R") || className.endsWith(".Manifest")) { |
| 82 | // Don't try to load classes that are generated. They usually aren't in test apks. |
| 83 | continue; |
| 84 | } |
| 85 | |
| 86 | try { |
| 87 | // We get errors in the emulator if we don't use the caller's class loader. |
| 88 | topLevelClasses.add(Class.forName(className, false, |
| 89 | (classLoader != null) ? classLoader : CLASS_LOADER)); |
| 90 | } catch (ClassNotFoundException e) { |
| 91 | // Should not happen unless there is a generated class that is not included in |
| 92 | // the .apk. |
| 93 | Log.w("ClassPathPackageInfoSource", "Cannot load class. " |
| 94 | + "Make sure it is in your apk. Class name: '" + className |
| 95 | + "'. Message: " + e.getMessage(), e); |
| 96 | } |
| 97 | } |
| 98 | return new ClassPathPackageInfo(this, packageName, subpackageNames, |
| 99 | topLevelClasses); |
| 100 | } |
| 101 | |
| 102 | /** |
| 103 | * Finds all classes and sub packages that are below the packageName and |
| 104 | * add them to the respective sets. Searches the package on the whole class |
| 105 | * path. |
| 106 | */ |
| 107 | private void findClasses(String packageName, Set<String> classNames, |
| 108 | Set<String> subpackageNames) { |
| 109 | String packagePrefix = packageName + '.'; |
| 110 | String pathPrefix = packagePrefix.replace('.', '/'); |
| 111 | |
| 112 | for (String entryName : classPath) { |
| 113 | File classPathEntry = new File(entryName); |
| 114 | |
| 115 | // Forge may not have brought over every item in the classpath. Be |
| 116 | // polite and ignore missing entries. |
| 117 | if (classPathEntry.exists()) { |
| 118 | try { |
| 119 | if (entryName.endsWith(".apk")) { |
| 120 | findClassesInApk(entryName, packageName, classNames, subpackageNames); |
Brian Carlstrom | 08065b9 | 2011-04-01 15:49:41 -0700 | [diff] [blame] | 121 | } else { |
| 122 | // scan the directories that contain apk files. |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 123 | for (String apkPath : apkPaths) { |
| 124 | File file = new File(apkPath); |
| 125 | scanForApkFiles(file, packageName, classNames, subpackageNames); |
| 126 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 127 | } |
| 128 | } catch (IOException e) { |
| 129 | throw new AssertionError("Can't read classpath entry " + |
| 130 | entryName + ": " + e.getMessage()); |
| 131 | } |
| 132 | } |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | private void scanForApkFiles(File source, String packageName, |
| 137 | Set<String> classNames, Set<String> subpackageNames) throws IOException { |
| 138 | if (source.getPath().endsWith(".apk")) { |
| 139 | findClassesInApk(source.getPath(), packageName, classNames, subpackageNames); |
| 140 | } else { |
| 141 | File[] files = source.listFiles(); |
| 142 | if (files != null) { |
| 143 | for (File file : files) { |
| 144 | scanForApkFiles(file, packageName, classNames, subpackageNames); |
| 145 | } |
| 146 | } |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | /** |
| 151 | * Finds all classes and sub packages that are below the packageName and |
| 152 | * add them to the respective sets. Searches the package in a class directory. |
| 153 | */ |
| 154 | private void findClassesInDirectory(File classDir, |
| 155 | String packagePrefix, String pathPrefix, Set<String> classNames, |
| 156 | Set<String> subpackageNames) |
| 157 | throws IOException { |
| 158 | File directory = new File(classDir, pathPrefix); |
| 159 | |
| 160 | if (directory.exists()) { |
| 161 | for (File f : directory.listFiles()) { |
| 162 | String name = f.getName(); |
| 163 | if (name.endsWith(CLASS_EXTENSION) && isToplevelClass(name)) { |
| 164 | classNames.add(packagePrefix + getClassName(name)); |
| 165 | } else if (f.isDirectory()) { |
| 166 | subpackageNames.add(packagePrefix + name); |
| 167 | } |
| 168 | } |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | /** |
| 173 | * Finds all classes and sub packages that are below the packageName and |
| 174 | * add them to the respective sets. Searches the package in a single jar file. |
| 175 | */ |
| 176 | private void findClassesInJar(File jarFile, String pathPrefix, |
| 177 | Set<String> classNames, Set<String> subpackageNames) |
| 178 | throws IOException { |
| 179 | Set<String> entryNames = getJarEntries(jarFile); |
| 180 | // check if the Jar contains the package. |
| 181 | if (!entryNames.contains(pathPrefix)) { |
| 182 | return; |
| 183 | } |
| 184 | int prefixLength = pathPrefix.length(); |
| 185 | for (String entryName : entryNames) { |
| 186 | if (entryName.startsWith(pathPrefix)) { |
| 187 | if (entryName.endsWith(CLASS_EXTENSION)) { |
| 188 | // check if the class is in the package itself or in one of its |
| 189 | // subpackages. |
| 190 | int index = entryName.indexOf('/', prefixLength); |
| 191 | if (index >= 0) { |
| 192 | String p = entryName.substring(0, index).replace('/', '.'); |
| 193 | subpackageNames.add(p); |
| 194 | } else if (isToplevelClass(entryName)) { |
| 195 | classNames.add(getClassName(entryName).replace('/', '.')); |
| 196 | } |
| 197 | } |
| 198 | } |
| 199 | } |
| 200 | } |
| 201 | |
| 202 | /** |
| 203 | * Finds all classes and sub packages that are below the packageName and |
| 204 | * add them to the respective sets. Searches the package in a single apk file. |
| 205 | */ |
| 206 | private void findClassesInApk(String apkPath, String packageName, |
| 207 | Set<String> classNames, Set<String> subpackageNames) |
| 208 | throws IOException { |
| 209 | |
| 210 | DexFile dexFile = null; |
| 211 | try { |
| 212 | dexFile = new DexFile(apkPath); |
| 213 | Enumeration<String> apkClassNames = dexFile.entries(); |
| 214 | while (apkClassNames.hasMoreElements()) { |
| 215 | String className = apkClassNames.nextElement(); |
| 216 | |
| 217 | if (className.startsWith(packageName)) { |
Brett Chabot | 2c62f84 | 2009-03-31 17:07:19 -0700 | [diff] [blame] | 218 | String subPackageName = packageName; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 219 | int lastPackageSeparator = className.lastIndexOf('.'); |
Brett Chabot | 2c62f84 | 2009-03-31 17:07:19 -0700 | [diff] [blame] | 220 | if (lastPackageSeparator > 0) { |
| 221 | subPackageName = className.substring(0, lastPackageSeparator); |
| 222 | } |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 223 | if (subPackageName.length() > packageName.length()) { |
| 224 | subpackageNames.add(subPackageName); |
| 225 | } else if (isToplevelClass(className)) { |
| 226 | classNames.add(className); |
| 227 | } |
| 228 | } |
| 229 | } |
| 230 | } catch (IOException e) { |
Joe Onorato | 43a1765 | 2011-04-06 19:22:23 -0700 | [diff] [blame] | 231 | if (false) { |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 232 | Log.w("ClassPathPackageInfoSource", |
| 233 | "Error finding classes at apk path: " + apkPath, e); |
| 234 | } |
| 235 | } finally { |
| 236 | if (dexFile != null) { |
| 237 | // Todo: figure out why closing causes a dalvik error resulting in vm shutdown. |
| 238 | // dexFile.close(); |
| 239 | } |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | /** |
| 244 | * Gets the class and package entries from a Jar. |
| 245 | */ |
| 246 | private Set<String> getJarEntries(File jarFile) |
| 247 | throws IOException { |
| 248 | Set<String> entryNames = jarFiles.get(jarFile); |
| 249 | if (entryNames == null) { |
| 250 | entryNames = Sets.newHashSet(); |
| 251 | ZipFile zipFile = new ZipFile(jarFile); |
| 252 | Enumeration<? extends ZipEntry> entries = zipFile.entries(); |
| 253 | while (entries.hasMoreElements()) { |
| 254 | String entryName = entries.nextElement().getName(); |
| 255 | if (entryName.endsWith(CLASS_EXTENSION)) { |
| 256 | // add the entry name of the class |
| 257 | entryNames.add(entryName); |
| 258 | |
| 259 | // add the entry name of the classes package, i.e. the entry name of |
| 260 | // the directory that the class is in. Used to quickly skip jar files |
| 261 | // if they do not contain a certain package. |
| 262 | // |
| 263 | // Also add parent packages so that a JAR that contains |
| 264 | // pkg1/pkg2/Foo.class will be marked as containing pkg1/ in addition |
| 265 | // to pkg1/pkg2/ and pkg1/pkg2/Foo.class. We're still interested in |
| 266 | // JAR files that contains subpackages of a given package, even if |
| 267 | // an intermediate package contains no direct classes. |
| 268 | // |
| 269 | // Classes in the default package will cause a single package named |
| 270 | // "" to be added instead. |
| 271 | int lastIndex = entryName.lastIndexOf('/'); |
| 272 | do { |
| 273 | String packageName = entryName.substring(0, lastIndex + 1); |
| 274 | entryNames.add(packageName); |
| 275 | lastIndex = entryName.lastIndexOf('/', lastIndex - 1); |
| 276 | } while (lastIndex > 0); |
| 277 | } |
| 278 | } |
| 279 | jarFiles.put(jarFile, entryNames); |
| 280 | } |
| 281 | return entryNames; |
| 282 | } |
| 283 | |
| 284 | /** |
| 285 | * Checks if a given file name represents a toplevel class. |
| 286 | */ |
| 287 | private static boolean isToplevelClass(String fileName) { |
| 288 | return fileName.indexOf('$') < 0; |
| 289 | } |
| 290 | |
| 291 | /** |
| 292 | * Given the absolute path of a class file, return the class name. |
| 293 | */ |
| 294 | private static String getClassName(String className) { |
| 295 | int classNameEnd = className.length() - CLASS_EXTENSION.length(); |
| 296 | return className.substring(0, classNameEnd); |
| 297 | } |
| 298 | |
| 299 | /** |
| 300 | * Gets the class path from the System Property "java.class.path" and splits |
| 301 | * it up into the individual elements. |
| 302 | */ |
| 303 | private static String[] getClassPath() { |
| 304 | String classPath = System.getProperty("java.class.path"); |
| 305 | String separator = System.getProperty("path.separator", ":"); |
| 306 | return classPath.split(Pattern.quote(separator)); |
| 307 | } |
| 308 | |
| 309 | public void setClassLoader(ClassLoader classLoader) { |
| 310 | this.classLoader = classLoader; |
| 311 | } |
| 312 | } |