PathClassLoader.java

11

11

PathClassLoader

    /**
     * Finds a class. This method is called by {@code loadClass()} after the
     * parent ClassLoader has failed to find a loaded class of the same name.
     *
     * @param name
     *            The "binary name" of the class to search for, in a
     *            human-readable form like "java.lang.String" or
     *            "java.net.URLClassLoader$3$1".
     * @return the {@link Class} object representing the class
     * @throws ClassNotFoundException
     *             if the class cannot be found
     */
    @Override
    protected Class<?> findClass(String name) throws ClassNotFoundException
    {
        //System.out.println("PathClassLoader " + this + ": findClass '" + name + "'");

        byte[] data = null;
        int length = mPaths.length;

        for (int i = 0; i < length; i++) {
            //System.out.println("My path is: " + mPaths[i]);

            if (mDexs[i] != null) {
                Class clazz = mDexs[i].loadClassBinaryName(name, this);
                if (clazz != null)
                    return clazz;
            } else if (mZips[i] != null) {
                String fileName = name.replace('.', '/') + ".class";
                data = loadFromArchive(mZips[i], fileName);
            } else {
                File pathFile = mFiles[i];
                if (pathFile.isDirectory()) {
                    String fileName =
                        mPaths[i] + "/" + name.replace('.', '/') + ".class";
                    data = loadFromDirectory(fileName);
                } else {
                    //System.out.println("PathClassLoader: can't find '"
                    //    + mPaths[i] + "'");
                }

            }

            /* --this doesn't work in current version of Dalvik--
            if (data != null) {
                System.out.println("--- Found class " + name
                    + " in zip[" + i + "] '" + mZips[i].getName() + "'");
                int dotIndex = name.lastIndexOf('.');
                if (dotIndex != -1) {
                    String packageName = name.substring(0, dotIndex);
                    synchronized (this) {
                        Package packageObj = getPackage(packageName);
                        if (packageObj == null) {
                            definePackage(packageName, null, null,
                                    null, null, null, null, null);
                        }
                    }
                }

                return defineClass(name, data, 0, data.length);
            }
            */
        }

        throw new ClassNotFoundException(name + " in loader " + this);
    }