interactive/xfa
Extract XFA (XML Forms Architecture) data.
Download Java Code Show Output Show Input PDF
import java.io.IOException;
import com.pdflib.pCOS;
import com.pdflib.pCOSException;
import com.pdflib.cookbook.pcos.pcos_cookbook_example;
/**
* Extract XFA (XML Forms Architecture) data.
* <p>
* Required software: pCOS interface 3 (pCOS 3.x, PDFlib+PDI/PPS 7.x, TET 2.2,
* PLOP 3.x) <br>
* Required data: PDF document
*
* @version $Id: xfa.java,v 1.5 2010/09/27 13:24:25 stm Exp $
*/
public class xfa extends pcos_cookbook_example {
/* This is where the data files are. Adjust as necessary. */
private final static String SEARCH_PATH = "../input";
private final static String KEY = "/Root/AcroForm/XFA";
public void example_code(pCOS p, String filename) throws pCOSException,
/* Open the PDF document */
int doc = p.open_document(filename, "");
if (doc == -1)
throw new Exception("Error: " + p.get_errmsg());
System.out.println("File name: " + p.pcos_get_string(doc, "filename"));
String objtype = p.pcos_get_string(doc, "type:" + KEY);
if (objtype.equals("null")) {
System.out.println("No XFA data found");
}
else if (objtype.equals("stream")) {
System.out.println("XFA data is contained in a single stream");
byte[] contents = p.pcos_get_stream(doc, "", KEY);
write_xfa_data(contents);
}
else if (objtype.equals("array")) {
int length = (int) p.pcos_get_number(doc, "length:" + KEY);
System.out.println("XFA data is contained in " + (length / 2)
+ " separate streams");
/*
* every second entry in the array contains a portion of the XFA
* data
*/
for (int i = 1; i < length; i += 2) {
byte[] contents = p.pcos_get_stream(doc, "", KEY + "[" + i
+ "]");
write_xfa_data(contents);
}
}
p.close_document(doc);
}
private void write_xfa_data(byte[] contents) {
if (contents != null && contents.length > 0) {
try {
System.out.write(contents);
}
catch (IOException e) {
System.err.println("IOException occurred:");
System.err.println(e.getMessage());
}
}
}
public xfa(String[] argv, String readable_name, String search_path,
String full_rcs_file_name, String revision) {
super(argv, readable_name, search_path, full_rcs_file_name, revision);
}
public static void main(String[] argv) {
xfa example = new xfa(argv, "XFA", SEARCH_PATH,
"$RCSfile: xfa.java,v $", "$Revision: 1.5 $");
example.execute();
}
}