diff options
Diffstat (limited to 'eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/sdk/AndroidJarLoader.java')
| -rw-r--r-- | eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/sdk/AndroidJarLoader.java | 458 |
1 files changed, 0 insertions, 458 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/sdk/AndroidJarLoader.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/sdk/AndroidJarLoader.java deleted file mode 100644 index 754cedf79..000000000 --- a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/sdk/AndroidJarLoader.java +++ /dev/null @@ -1,458 +0,0 @@ -/* - * Copyright (C) 2007 The Android Open Source Project - * - * Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php - * - * 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.ide.eclipse.adt.internal.sdk; - -import com.android.SdkConstants; -import com.google.common.io.Closeables; - -import org.eclipse.core.runtime.IProgressMonitor; -import org.eclipse.core.runtime.SubMonitor; - -import java.io.FileInputStream; -import java.io.IOException; -import java.lang.reflect.Modifier; -import java.util.ArrayList; -import java.util.HashMap; -import java.util.zip.ZipEntry; -import java.util.zip.ZipInputStream; - -import javax.management.InvalidAttributeValueException; - -/** - * Custom class loader able to load a class from the SDK jar file. - */ -public class AndroidJarLoader extends ClassLoader implements IAndroidClassLoader { - - /** - * Wrapper around a {@link Class} to provide the methods of - * {@link IAndroidClassLoader.IClassDescriptor}. - */ - public final static class ClassWrapper implements IClassDescriptor { - private Class<?> mClass; - - public ClassWrapper(Class<?> clazz) { - mClass = clazz; - } - - @Override - public String getFullClassName() { - return mClass.getCanonicalName(); - } - - @Override - public IClassDescriptor[] getDeclaredClasses() { - Class<?>[] classes = mClass.getDeclaredClasses(); - IClassDescriptor[] iclasses = new IClassDescriptor[classes.length]; - for (int i = 0 ; i < classes.length ; i++) { - iclasses[i] = new ClassWrapper(classes[i]); - } - - return iclasses; - } - - @Override - public IClassDescriptor getEnclosingClass() { - return new ClassWrapper(mClass.getEnclosingClass()); - } - - @Override - public String getSimpleName() { - return mClass.getSimpleName(); - } - - @Override - public IClassDescriptor getSuperclass() { - return new ClassWrapper(mClass.getSuperclass()); - } - - @Override - public boolean equals(Object clazz) { - if (clazz instanceof ClassWrapper) { - return mClass.equals(((ClassWrapper)clazz).mClass); - } - return super.equals(clazz); - } - - @Override - public int hashCode() { - return mClass.hashCode(); - } - - - @Override - public boolean isInstantiable() { - int modifiers = mClass.getModifiers(); - return Modifier.isAbstract(modifiers) == false && Modifier.isPublic(modifiers) == true; - } - - public Class<?> wrappedClass() { - return mClass; - } - - } - - private String mOsFrameworkLocation; - - /** A cache for binary data extracted from the zip */ - private final HashMap<String, byte[]> mEntryCache = new HashMap<String, byte[]>(); - /** A cache for already defined Classes */ - private final HashMap<String, Class<?> > mClassCache = new HashMap<String, Class<?> >(); - - /** - * Creates the class loader by providing the os path to the framework jar archive - * - * @param osFrameworkLocation OS Path of the framework JAR file - */ - public AndroidJarLoader(String osFrameworkLocation) { - super(); - mOsFrameworkLocation = osFrameworkLocation; - } - - @Override - public String getSource() { - return mOsFrameworkLocation; - } - - /** - * Pre-loads all class binary data that belong to the given package by reading the archive - * once and caching them internally. - * <p/> - * This does not actually preload "classes", it just reads the unzipped bytes for a given - * class. To obtain a class, one must call {@link #findClass(String)} later. - * <p/> - * All classes which package name starts with "packageFilter" will be included and can be - * found later. - * <p/> - * May throw some exceptions if the framework JAR cannot be read. - * - * @param packageFilter The package that contains all the class data to preload, using a fully - * qualified binary name (.e.g "com.my.package."). The matching algorithm - * is simple "startsWith". Use an empty string to include everything. - * @param taskLabel An optional task name for the sub monitor. Can be null. - * @param monitor A progress monitor. Can be null. Caller is responsible for calling done. - * @throws IOException - * @throws InvalidAttributeValueException - * @throws ClassFormatError - */ - public void preLoadClasses(String packageFilter, String taskLabel, IProgressMonitor monitor) - throws IOException, InvalidAttributeValueException, ClassFormatError { - // Transform the package name into a zip entry path - String pathFilter = packageFilter.replaceAll("\\.", "/"); //$NON-NLS-1$ //$NON-NLS-2$ - - SubMonitor progress = SubMonitor.convert(monitor, taskLabel == null ? "" : taskLabel, 100); - - // create streams to read the intermediary archive - FileInputStream fis = new FileInputStream(mOsFrameworkLocation); - ZipInputStream zis = new ZipInputStream(fis); - ZipEntry entry; - while ((entry = zis.getNextEntry()) != null) { - // get the name of the entry. - String entryPath = entry.getName(); - - if (!entryPath.endsWith(SdkConstants.DOT_CLASS)) { - // only accept class files - continue; - } - - // check if it is part of the package to preload - if (pathFilter.length() > 0 && !entryPath.startsWith(pathFilter)) { - continue; - } - String className = entryPathToClassName(entryPath); - - if (!mEntryCache.containsKey(className)) { - long entrySize = entry.getSize(); - if (entrySize > Integer.MAX_VALUE) { - throw new InvalidAttributeValueException(); - } - byte[] data = readZipData(zis, (int)entrySize); - mEntryCache.put(className, data); - } - - // advance 5% of whatever is allocated on the progress bar - progress.setWorkRemaining(100); - progress.worked(5); - progress.subTask(String.format("Preload %1$s", className)); - } - } - - /** - * Finds and loads all classes that derive from a given set of super classes. - * <p/> - * As a side-effect this will load and cache most, if not all, classes in the input JAR file. - * - * @param packageFilter Base name of package of classes to find. - * Use an empty string to find everyting. - * @param superClasses The super classes of all the classes to find. - * @return An hash map which keys are the super classes looked for and which values are - * ArrayList of the classes found. The array lists are always created for all the - * valid keys, they are simply empty if no deriving class is found for a given - * super class. - * @throws IOException - * @throws InvalidAttributeValueException - * @throws ClassFormatError - */ - @SuppressWarnings("resource") // Eclipse doesn't understand Closeables.closeQuietly - @Override - public HashMap<String, ArrayList<IClassDescriptor>> findClassesDerivingFrom( - String packageFilter, - String[] superClasses) - throws IOException, InvalidAttributeValueException, ClassFormatError { - - packageFilter = packageFilter.replaceAll("\\.", "/"); //$NON-NLS-1$ //$NON-NLS-2$ - - HashMap<String, ArrayList<IClassDescriptor>> mClassesFound = - new HashMap<String, ArrayList<IClassDescriptor>>(); - - for (String className : superClasses) { - mClassesFound.put(className, new ArrayList<IClassDescriptor>()); - } - - // create streams to read the intermediary archive - FileInputStream fis = new FileInputStream(mOsFrameworkLocation); - ZipInputStream zis = new ZipInputStream(fis); - try { - ZipEntry entry; - while ((entry = zis.getNextEntry()) != null) { - // get the name of the entry and convert to a class binary name - String entryPath = entry.getName(); - if (!entryPath.endsWith(SdkConstants.DOT_CLASS)) { - // only accept class files - continue; - } - if (packageFilter.length() > 0 && !entryPath.startsWith(packageFilter)) { - // only accept stuff from the requested root package. - continue; - } - String className = entryPathToClassName(entryPath); - - Class<?> loaded_class = mClassCache.get(className); - if (loaded_class == null) { - byte[] data = mEntryCache.get(className); - if (data == null) { - // Get the class and cache it - long entrySize = entry.getSize(); - if (entrySize > Integer.MAX_VALUE) { - throw new InvalidAttributeValueException(); - } - data = readZipData(zis, (int)entrySize); - } - try { - loaded_class = defineAndCacheClass(className, data); - } catch (NoClassDefFoundError error) { - if (error.getMessage().startsWith("java/")) { - // Can't define these; we just need to stop - // iteration here - continue; - } - throw error; - } - } - - for (Class<?> superClass = loaded_class.getSuperclass(); - superClass != null; - superClass = superClass.getSuperclass()) { - String superName = superClass.getCanonicalName(); - if (mClassesFound.containsKey(superName)) { - mClassesFound.get(superName).add(new ClassWrapper(loaded_class)); - break; - } - } - } - } finally { - Closeables.closeQuietly(zis); - } - - return mClassesFound; - } - - /** Helper method that converts a Zip entry path into a corresponding - * Java full qualified binary class name. - * <p/> - * F.ex, this converts "com/my/package/Foo.class" into "com.my.package.Foo". - */ - private String entryPathToClassName(String entryPath) { - return entryPath.replaceFirst("\\.class$", "").replaceAll("[/\\\\]", "."); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ - } - - /** - * Finds the class with the specified binary name. - * - * {@inheritDoc} - */ - @Override - protected Class<?> findClass(String name) throws ClassNotFoundException { - try { - // try to find the class in the cache - Class<?> cached_class = mClassCache.get(name); - if (cached_class == ClassNotFoundException.class) { - // we already know we can't find this class, don't try again - throw new ClassNotFoundException(name); - } else if (cached_class != null) { - return cached_class; - } - - // if not found, look it up and cache it - byte[] data = loadClassData(name); - if (data != null) { - return defineAndCacheClass(name, data); - } else { - // if the class can't be found, record a CNFE class in the map so - // that we don't try to reload it next time - mClassCache.put(name, ClassNotFoundException.class); - throw new ClassNotFoundException(name); - } - } catch (ClassNotFoundException e) { - throw e; - } catch (Exception e) { - throw new ClassNotFoundException(e.getMessage()); - } - } - - /** - * Defines a class based on its binary data and caches the resulting class object. - * - * @param name The binary name of the class (i.e. package.class1$class2) - * @param data The binary data from the loader. - * @return The class defined - * @throws ClassFormatError if defineClass failed. - */ - private Class<?> defineAndCacheClass(String name, byte[] data) throws ClassFormatError { - Class<?> cached_class; - cached_class = defineClass(null, data, 0, data.length); - - if (cached_class != null) { - // Add new class to the cache class and remove it from the zip entry data cache - mClassCache.put(name, cached_class); - mEntryCache.remove(name); - } - return cached_class; - } - - /** - * Loads a class data from its binary name. - * <p/> - * This uses the class binary data that has been preloaded earlier by the preLoadClasses() - * method if possible. - * - * @param className the binary name - * @return an array of bytes representing the class data or null if not found - * @throws InvalidAttributeValueException - * @throws IOException - */ - private synchronized byte[] loadClassData(String className) - throws InvalidAttributeValueException, IOException { - - byte[] data = mEntryCache.get(className); - if (data != null) { - return data; - } - - // The name is a binary name. Something like "android.R", or "android.R$id". - // Make a path out of it. - String entryName = className.replaceAll("\\.", "/") + SdkConstants.DOT_CLASS; //$NON-NLS-1$ //$NON-NLS-2$ - - // create streams to read the intermediary archive - FileInputStream fis = new FileInputStream(mOsFrameworkLocation); - ZipInputStream zis = new ZipInputStream(fis); - try { - // loop on the entries of the intermediary package and put them in the final package. - ZipEntry entry; - - while ((entry = zis.getNextEntry()) != null) { - // get the name of the entry. - String currEntryName = entry.getName(); - - if (currEntryName.equals(entryName)) { - long entrySize = entry.getSize(); - if (entrySize > Integer.MAX_VALUE) { - throw new InvalidAttributeValueException(); - } - - data = readZipData(zis, (int)entrySize); - return data; - } - } - - return null; - } finally { - zis.close(); - } - } - - /** - * Reads data for the <em>current</em> entry from the zip input stream. - * - * @param zis The Zip input stream - * @param entrySize The entry size. -1 if unknown. - * @return The new data for the <em>current</em> entry. - * @throws IOException If ZipInputStream.read() fails. - */ - private byte[] readZipData(ZipInputStream zis, int entrySize) throws IOException { - int block_size = 1024; - int data_size = entrySize < 1 ? block_size : entrySize; - int offset = 0; - byte[] data = new byte[data_size]; - - while(zis.available() != 0) { - int count = zis.read(data, offset, data_size - offset); - if (count < 0) { // read data is done - break; - } - offset += count; - - if (entrySize >= 1 && offset >= entrySize) { // we know the size and we're done - break; - } - - // if we don't know the entry size and we're not done reading, - // expand the data buffer some more. - if (offset >= data_size) { - byte[] temp = new byte[data_size + block_size]; - System.arraycopy(data, 0, temp, 0, data_size); - data_size += block_size; - data = temp; - block_size *= 2; - } - } - - if (offset < data_size) { - // buffer was allocated too large, trim it - byte[] temp = new byte[offset]; - if (offset > 0) { - System.arraycopy(data, 0, temp, 0, offset); - } - data = temp; - } - - return data; - } - - /** - * Returns a {@link IAndroidClassLoader.IClassDescriptor} by its fully-qualified name. - * @param className the fully-qualified name of the class to return. - * @throws ClassNotFoundException - */ - @Override - public IClassDescriptor getClass(String className) throws ClassNotFoundException { - try { - return new ClassWrapper(loadClass(className)); - } catch (ClassNotFoundException e) { - throw e; // useful for debugging - } - } -} |