Is there a way to deserialize the java object via python

Question

I stored the java object in hbase (i.e) Let's say I have an object 'User' with 3 parameters like firstname, middlename and lastname. I used the following code for serialization in java

Object object = (object) user;    
byte[] byteData = SerializationUtils.serialize((Serializable) object);

and stored in hbase like 'storing complete object (in byte[] format of above) in the Value portion of the KeyValue pair'

It is stored in hbase like (Example)

column=container:container, timestamp=1480016194005, value=\xAC\xED\x00\x05sr\x00&com.test.container\x07\x89\x83\xFA\x7F\xD0F\xA5\x02\x00\x08I\x00\x07classIdJ\x00\x14dateTimeInLongFormatZ\x00\x04rootZ\x00\x09undefinedL\x00\x03keyt\x00\x12Ljava/lang/String;L\x00\x04modeq\x00~\x00\x01L\x00\x04nameq\x00~\x00\x01L\x00\x06userIdq\x00~\x00\x01xp\x00\x00\x00\x02\x00\x00\x01X\x967\xBA\xF0\x00\x00t\x00\x1Econtainer_393_5639181044834024t\x00\x06expandt\x00\x02ert\x00\x08testadmin

when I try to retrieve the data, I used the following deserialization in java and converted back to object of readable format

object = SerializationUtils.deserialize(bytes);

I would like to retrieve the data stored in java format via happybase using python and I achieved it and received the data as available in hbase like

It is stored in hbase like (Example)

column=container:container, timestamp=1480016194005, value=\xAC\xED\x00\x05sr\x00&com.test.container\x07\x89\x83\xFA\x7F\xD0F\xA5\x02\x00\x08I\x00\x07classIdJ\x00\x14dateTimeInLongFormatZ\x00\x04rootZ\x00\x09undefinedL\x00\x03keyt\x00\x12Ljava/lang/String;L\x00\x04modeq\x00~\x00\x01L\x00\x04nameq\x00~\x00\x01L\x00\x06userIdq\x00~\x00\x01xp\x00\x00\x00\x02\x00\x00\x01X\x967\xBA\xF0\x00\x00t\x00\x1Econtainer_393_5639181044834024t\x00\x06expandt\x00\x02ert\x00\x08testadmin

Is there a way to deserialize the java object via python

Thanks Much

Hari

Short answer: if you're asking this question then no. Longer answer: the Java binary serialization format is well specified so you could write code in Python, or any language, to read the data. But you obviously cannot create the same behaviour in Python code an in Java code so whilst you can read the data from the serialized format, you cannot read the behaviour. — Boris the Spider

Dennis Ich Dennis Ich · Accepted Answer · 2016-11-25T16:42:28

There is a Python library for that:

https://pypi.python.org/pypi/javaobj-py3/

Usage seems pretty easy with:

import javaobj
jobj = self.read_file("obj5.ser")
pobj = javaobj.loads(jobj)
print(pobj)

Is there a way to deserialize the java object via python

1 Answers