Package com.clumd.projects.java_common_utils.base_enhancements

Class ObjectInputStreamWithClassLoader

java.lang.Object

java.io.InputStream

java.io.ObjectInputStream

com.clumd.projects.java_common_utils.base_enhancements.ObjectInputStreamWithClassLoader

All Implemented Interfaces:

Closeable, DataInput, ObjectInput, ObjectStreamConstants, AutoCloseable

public class ObjectInputStreamWithClassLoader
extends ObjectInputStream

This is used to point to a provided custom classloader as the first point of contact for loading new objects over a connection. It also allows the caller to provide a custom overridden set of objects expected to be read from the InputStream when initialising

Nested Class Summary

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

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, SERIAL_FILTER_PERMISSION, 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

Constructors

Constructor	Description
ObjectInputStreamWithClassLoader(@NonNull InputStream in, @NonNull URLClassLoader customLoader)	Custom constructor to include the classloader for the stream.

Method Summary

Modifier and Type	Method	Description
protected Class<?>	resolveClass(ObjectStreamClass deserializedClassDescription)	Overridden to point to the custom classloader first.

Methods inherited from class java.io.ObjectInputStream

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

Methods inherited from class java.io.InputStream

mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, reset, skip, skipNBytes, transferTo

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 Details

ObjectInputStreamWithClassLoader

public ObjectInputStreamWithClassLoader(@NonNull
 @NonNull InputStream in,
 @NonNull
 @NonNull URLClassLoader customLoader)
                                 throws IOException

Custom constructor to include the classloader for the stream.

Parameters:

in - The inputStream as normal

customLoader - The Custom Class loader to try first for all objects received over this stream.

Throws:

IOException - Thrown as per super's specification

Method Details

resolveClass

protected Class<?> resolveClass(ObjectStreamClass deserializedClassDescription)
                         throws ClassNotFoundException

Overridden to point to the custom classloader first.

Overrides:

resolveClass in class ObjectInputStream

Parameters:

deserializedClassDescription - As normal

Returns:

As normal

Throws:

ClassNotFoundException - as normal.