Java: Reading XML file from a TCP stream without writing it to disk

Question

I would like to send a XML file from a server to client. The XML file has been generated by the XMLEncoder class and contains some persistent objects.

The client reads the XML file by using a XMLDecoder and storing the objects in a collection, but it's not necessary to write the file to disk. Is that possible? If so, how could it be done? Thanks.

Peter Lawrey · Accepted Answer · 2013-06-14 17:54:42Z

2

Is that possible? If so, how could it be done?

Read the data from the socket instead of reading from a File. XMLDecoder takes an InputStream which can be the socket.getInputSteam();

answered Jun 14, 2013 at 17:54

Peter Lawrey

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4 Comments

pmoleri Over a year ago

I would just add that it's recommendable to wrap the InputStream in a BufferedInputStream. new XMLDecoder(new BufferedInputStream(socket.getInputStream()));

user1812379 Over a year ago

Thank you :-) Then this is much easier than I was thinking.

raghav Over a year ago

@Peter I think XMLDecoder would only be able to read files encoded by XMLEncoder. We may not know what has been used on client side. So is there any other class that can take socket.getInputStream() to read XML directly?

Peter Lawrey Over a year ago

@raghav correct, I would expect XMLDecoder to only read a subset of XML. Note: this form of serialization isn't secure either so you have to trust the source of the data.

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