java - How to read same XML file more times using XMLStreamReader -

i read xml file in 3 phases , in each phase, interested in different elements, based on input parameters.

what best approach read 1 xml file more times using xmlstreamreader?

xmlinputfactory = xmlinputfactory.newinstance();     try {         xmlstreamreader streamreader xmlinputfactory.createxmlstreamreader(inputstream);   try {         while (streamreader .hasnext()) { 

where inputstream fileinputstream instance

at moment, either stream closed exception or streamreader.hasnext() false when start second phase reading.

load file memory , use bytearrayinputstream

file f = ...; int len = (int)f.length(); // careful: if life on 4 gigs won't work byte myxml[] = new byte[]; fileinputstream fis = new fileinputstream(f); int read = fis.read(f); // not guarenteed read bytes, in experience, reads bytes if (read != len) throw runtimeexcption("didn't read everything");  // can create many xmlstreamreaders want      try {         xmlstreamreader streamreader xmlinputfactory.createxmlstreamreader(new bytearrayinputstream(buf));