org.apache.catalina.cluster.session
Class ReplicationStream

java.lang.Object
  java.io.InputStream
      java.io.ObjectInputStream
          org.apache.catalina.cluster.session.ReplicationStream

All Implemented Interfaces:

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

public final class ReplicationStream

extends java.io.ObjectInputStream

Custom subclass of ObjectInputStream that loads from the class loader for this web application. This allows classes defined only with the web application to be found correctly.

Version:

$Id: ReplicationStream.java 1158254 2011-08-16 13:03:26Z markt $

Author:

Craig R. McClanahan, Bip Thelin

Nested Class Summary

Nested classes 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_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_EXCEPTION, TC_LONGSTRING, TC_MAX, TC_NULL, TC_OBJECT, TC_PROXYCLASSDESC, TC_REFERENCE, TC_RESET, TC_STRING

Constructor Summary

ReplicationStream(java.io.InputStream stream, java.lang.ClassLoader classLoader)
Construct a new instance of CustomObjectInputStream

Method Summary

java.lang.Class	findReplicationClass(java.lang.String name)
java.lang.Class	findWebappClass(java.lang.String name)
java.lang.Class	resolveClass(java.io.ObjectStreamClass classDesc) Load the local class equivalent of the specified stream class description, by using the class loader assigned to this Context.
protected java.lang.Class	resolveProxyClass(java.lang.String[] interfaces) ObjectInputStream.resolveProxyClass has some funky way of using the incorrect class loader to resolve proxy classes, let's do it our way instead

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, resolveObject, 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

ReplicationStream

public ReplicationStream(java.io.InputStream stream,
                         java.lang.ClassLoader classLoader)
                  throws java.io.IOException

Construct a new instance of CustomObjectInputStream

Parameters:

stream - The input stream we will read from

classLoader - The class loader used to instantiate objects

Throws:

java.io.IOException - if an input/output error occurs

Method Detail

resolveClass

public java.lang.Class resolveClass(java.io.ObjectStreamClass classDesc)
                             throws java.lang.ClassNotFoundException,
                                    java.io.IOException

Load the local class equivalent of the specified stream class description, by using the class loader assigned to this Context.

Parameters:

classDesc - Class description from the input stream

Throws:

java.lang.ClassNotFoundException - if this class cannot be found

java.io.IOException - if an input/output error occurs

resolveProxyClass

protected java.lang.Class resolveProxyClass(java.lang.String[] interfaces)
                                     throws java.io.IOException,
                                            java.lang.ClassNotFoundException

ObjectInputStream.resolveProxyClass has some funky way of using the incorrect class loader to resolve proxy classes, let's do it our way instead

Throws:

java.io.IOException

java.lang.ClassNotFoundException

findReplicationClass

public java.lang.Class findReplicationClass(java.lang.String name)
                                     throws java.lang.ClassNotFoundException,
                                            java.io.IOException

Throws:

java.lang.ClassNotFoundException

java.io.IOException

findWebappClass

public java.lang.Class findWebappClass(java.lang.String name)
                                throws java.lang.ClassNotFoundException,
                                       java.io.IOException

Throws:

java.lang.ClassNotFoundException

java.io.IOException