jgroup.relacs.rmi
Class MarshalInputStream

java.lang.Object
  java.io.InputStream
      java.io.ObjectInputStream
          jgroup.relacs.rmi.MarshalInputStream

All Implemented Interfaces:

java.io.Closeable, java.io.DataInput, java.io.ObjectInput, java.io.ObjectStreamConstants

public class MarshalInputStream
extends java.io.ObjectInputStream

This class overrides the replaceObject method to replace each exported remote object with its corresponding stub instance. This is obtained by using the java.rmi.MarshalledObject class, that contains a byte stream with the serialized representation of an object given to its constructor. The contained object is serialized and deserialized with the same serialization semantics used for marshaling and unmarshaling parameters and return values of RMI calls.

Since:

Jgroup 0.8

Author:

Alberto Montresor

Nested Class Summary

Nested classes/interfaces inherited from class java.io.ObjectInputStream

java.io.ObjectInputStream.GetField

Field Summary

Fields inherited from interface java.io.ObjectStreamConstants

baseWireHandle, PROTOCOL_VERSION_1, PROTOCOL_VERSION_2, SC_BLOCK_DATA, SC_ENUM, SC_EXTERNALIZABLE, SC_SERIALIZABLE, SC_WRITE_METHOD, STREAM_MAGIC, STREAM_VERSION, SUBCLASS_IMPLEMENTATION_PERMISSION, SUBSTITUTION_PERMISSION, TC_ARRAY, TC_BASE, TC_BLOCKDATA, TC_BLOCKDATALONG, TC_CLASS, TC_CLASSDESC, TC_ENDBLOCKDATA, TC_ENUM, TC_EXCEPTION, TC_LONGSTRING, TC_MAX, TC_NULL, TC_OBJECT, TC_PROXYCLASSDESC, TC_REFERENCE, TC_RESET, TC_STRING

Constructor Summary

protected	MarshalInputStream() Provide a way for subclasses that are completely reimplementing MarshalInputStream to not have to allocate private data just used by this implementation of ObjectInputStream.
	MarshalInputStream(java.io.InputStream out)

Method Summary

protected java.lang.Object

resolveObject(java.lang.Object obj) If the specified object is a marshalled object, extracts the contained object from it.

Methods inherited from class java.io.ObjectInputStream

available, close, defaultReadObject, enableResolveObject, read, read, readBoolean, readByte, readChar, readClassDescriptor, readDouble, readFields, readFloat, readFully, readFully, readInt, readLine, readLong, readObject, readObjectOverride, readShort, readStreamHeader, readUnshared, readUnsignedByte, readUnsignedShort, readUTF, registerValidation, resolveClass, resolveProxyClass, skipBytes

Methods inherited from class java.io.InputStream

mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.io.ObjectInput

read, skip

Constructor Detail

MarshalInputStream

protected MarshalInputStream()
                      throws java.io.IOException

Provide a way for subclasses that are completely reimplementing MarshalInputStream to not have to allocate private data just used by this implementation of ObjectInputStream.

If there is a security manager installed, this method first calls the security manager's checkPermission method with a SerializablePermission("enableSubclassImplementation") permission to ensure it's ok to enable subclassing.

Throws:

java.io.IOException - Thrown if not called by a subclass.

java.lang.SecurityException - if a security manager exists and its checkPermission method denies enabling subclassing.

MarshalInputStream

public MarshalInputStream(java.io.InputStream out)
                   throws java.io.IOException

Throws:

java.io.IOException

Method Detail

resolveObject

protected java.lang.Object resolveObject(java.lang.Object obj)
                                  throws java.io.IOException

If the specified object is a marshalled object, extracts the contained object from it.

Overrides:

resolveObject in class java.io.ObjectInputStream

Throws:

java.io.IOException