| /* |
| * Copyright (c) 1998, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.io.*; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Modifier; |
| import java.lang.reflect.InvocationTargetException; |
| import java.security.*; |
| |
| class XObjectInputStream extends AbstractObjectInputStream { |
| |
| XObjectInputStream(InputStream in) |
| throws IOException, StreamCorruptedException |
| { |
| super(in); |
| dis = new DataInputStream(in); |
| } |
| |
| public final void defaultReadObject() |
| throws IOException, ClassNotFoundException, NotActiveException |
| { |
| } |
| |
| protected final Object readObjectOverride() |
| throws OptionalDataException, ClassNotFoundException, IOException { |
| |
| Object readResult = null; |
| Object prevObject = currentObject; |
| Class prevDesc = currentClassDescriptor; |
| |
| boolean NotImplemented = true; |
| if (NotImplemented) |
| throw new IOException("readObjectOverride not implemented"); |
| |
| try { |
| currentObject = null; |
| |
| //Read in class of object to currentDescriptor |
| String className = dis.readUTF(); |
| currentClassDescriptor = Class.forName(className); |
| |
| try { |
| //currentObject = Allocate a new instance of the class |
| currentObject = |
| allocateNewObject(currentClassDescriptor, |
| currentClassDescriptor); |
| } catch (InstantiationException e) { |
| throw new InvalidClassException(currentClassDescriptor.getName(), |
| e.getMessage()); |
| } catch (IllegalAccessException e) { |
| throw new InvalidClassException(currentClassDescriptor.getName(), |
| e.getMessage()); |
| } |
| |
| //if currentDescriptor.isAssignable(Externalizable.class) { |
| // Object[] argList = {this}; |
| // InvokeMethod(currentObject, readExternalMethod, argList); |
| //} else { |
| // Does currentDescriptor have a readObject method |
| // if it does |
| // invokeMethod(this, readObjectMethod, {this}); |
| // else |
| // defaultReadObject(); |
| //} |
| // check for replacement on currentObject. |
| // if toplevel readobject |
| // doObjectValidations. |
| |
| } finally { |
| readResult = currentObject; |
| currentObject = prevObject; |
| } |
| return readResult; |
| } |
| |
| public ObjectInputStream.GetField readFields() |
| throws IOException, ClassNotFoundException, NotActiveException { |
| throw new Error("not implememted"); |
| } |
| |
| public synchronized void registerValidation(ObjectInputValidation obj, |
| int prio) |
| throws NotActiveException, InvalidObjectException { |
| } |
| |
| public int read() throws IOException { |
| return dis.read(); |
| } |
| |
| public int read(byte[] data, int offset, int length) throws IOException { |
| return dis.read(data, offset, length); |
| } |
| |
| public int available() throws IOException { |
| return in.available(); |
| } |
| |
| public boolean readBoolean() throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| |
| public byte readByte() throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public int readUnsignedByte() throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public short readShort() throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public int readUnsignedShort() throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public char readChar() throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public int readInt() throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public long readLong() throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public float readFloat() throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public double readDouble() throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public void readFully(byte[] data) throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public void readFully(byte[] data, int offset, int size) throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public int skipBytes(int len) throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public String readLine() throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| public String readUTF() throws IOException { |
| throw new IOException("Not Implemented"); |
| } |
| |
| public void close() throws IOException { |
| in.close(); |
| } |
| /**********************************************************/ |
| |
| /** |
| * Provide access to the persistent fields read from the input stream. |
| */ |
| |
| public static class InternalGetField extends ObjectInputStream.GetField { |
| |
| /** |
| * Get the ObjectStreamClass that describes the fields in the stream. |
| */ |
| public ObjectStreamClass getObjectStreamClass() { |
| throw new Error("not implemented"); |
| } |
| |
| /** |
| * Return true if the named field is defaulted and has no value |
| * in this stream. |
| */ |
| public boolean defaulted(String name) |
| throws IOException, IllegalArgumentException |
| { |
| throw new Error("not implemented"); |
| //ObjectStreamField field = checkField(name, null); |
| } |
| |
| public boolean get(String name, boolean defvalue) |
| throws IOException, IllegalArgumentException { |
| throw new Error("not implemented"); |
| } |
| |
| public char get(String name, char defvalue) |
| throws IOException, IllegalArgumentException { |
| throw new Error("not implemented"); |
| } |
| |
| public byte get(String name, byte defvalue) |
| throws IOException, IllegalArgumentException { |
| throw new Error("not implemented"); |
| } |
| |
| public short get(String name, short defvalue) |
| throws IOException, IllegalArgumentException { |
| throw new Error("not implemented"); |
| } |
| |
| public int get(String name, int defvalue) |
| throws IOException, IllegalArgumentException { |
| throw new Error("not implemented"); |
| } |
| |
| public long get(String name, long defvalue) |
| throws IOException, IllegalArgumentException { |
| throw new Error("not implemented"); |
| } |
| |
| public float get(String name, float defvalue) |
| throws IOException, IllegalArgumentException { |
| throw new Error("not implemented"); |
| } |
| |
| public double get(String name, double defvalue) |
| throws IOException, IllegalArgumentException { |
| throw new Error("not implemented"); |
| } |
| |
| public Object get(String name, Object defvalue) |
| throws IOException, IllegalArgumentException { |
| throw new Error("not implemented"); |
| } |
| |
| public void read(ObjectInputStream in) |
| throws IOException, ClassNotFoundException { |
| } |
| } |
| |
| private Object currentObject; |
| private Class currentClassDescriptor; |
| |
| |
| |
| /****************************************************************/ |
| |
| /* CODE LIFTED FROM ObjectStreamClass constuctor. |
| * ObjectStreamClass.readObjectMethod is private. |
| * |
| * Look for the readObject method |
| * Set the accessible flag on it here. ObjectOutputStream |
| * will call it as necessary. |
| */ |
| public static Method getReadObjectMethod(final Class cl) { |
| |
| Method readObjectMethod = (Method) |
| java.security.AccessController.doPrivileged |
| (new java.security.PrivilegedAction() { |
| public Object run() { |
| Method m = null; |
| try { |
| Class[] args = {ObjectInputStream.class}; |
| m = cl.getDeclaredMethod("readObject", args); |
| int mods = m.getModifiers(); |
| // Method must be private and non-static |
| if (!Modifier.isPrivate(mods) || |
| Modifier.isStatic(mods)) { |
| m = null; |
| } else { |
| m.setAccessible(true); |
| } |
| } catch (NoSuchMethodException e) { |
| m = null; |
| } |
| return m; |
| } |
| }); |
| return readObjectMethod; |
| } |
| |
| /*************************************************************/ |
| |
| /* taken verbatim from ObjectInputStream. */ |
| private static void invokeMethod(final Object obj, final Method m, |
| final Object[] argList) |
| throws IOException |
| { |
| try { |
| java.security.AccessController.doPrivileged |
| (new java.security.PrivilegedExceptionAction() { |
| public Object run() throws InvocationTargetException, |
| java.lang.IllegalAccessException { |
| m.invoke(obj, argList); |
| return null; |
| } |
| }); |
| } catch (java.security.PrivilegedActionException e) { |
| Exception ex = e.getException(); |
| if (ex instanceof InvocationTargetException) { |
| Throwable t = |
| ((InvocationTargetException)ex).getTargetException(); |
| if (t instanceof IOException) |
| throw (IOException)t; |
| else if (t instanceof RuntimeException) |
| throw (RuntimeException) t; |
| else if (t instanceof Error) |
| throw (Error) t; |
| else |
| throw new Error("interal error"); |
| } else { |
| // IllegalAccessException cannot happen |
| } |
| } |
| } |
| |
| protected boolean enableResolveObject(boolean enable) |
| throws SecurityException |
| { |
| throw new Error("To be implemented"); |
| } |
| |
| private DataInputStream dis; |
| }; |