public Path getPath() throws IOException {
        return getPath(-1);
    }
If the user created this TikaInputStream with a file,
the original file will be returned.  If not, the entire stream
will be spooled to a temporary file which will be deleted
upon the close of this TikaInputStream

@return
@throws IOException
tika-core/src/main/java/org/apache/tika/io/TikaInputStream.java