org.apache.poi.hpsf.examples.ReadCustomPropertySets Maven / Gradle / Ivy
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package org.apache.poi.hpsf.examples;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import org.apache.poi.hpsf.NoPropertySetStreamException;
import org.apache.poi.hpsf.Property;
import org.apache.poi.hpsf.PropertySet;
import org.apache.poi.hpsf.PropertySetFactory;
import org.apache.poi.hpsf.Section;
import org.apache.poi.poifs.eventfilesystem.POIFSReader;
import org.apache.poi.poifs.eventfilesystem.POIFSReaderEvent;
import org.apache.poi.poifs.eventfilesystem.POIFSReaderListener;
import org.apache.poi.util.HexDump;
/**
* Sample application showing how to read a document's custom property set.
* Call it with the document's file name as command-line parameter.
*
* Explanations can be found in the HPSF HOW-TO.
*
* @author Rainer Klute <[email protected]>
*/
public class ReadCustomPropertySets
{
/**
* Runs the example program.
*
* @param args Command-line arguments (unused).
* @throws IOException if any I/O exception occurs.
*/
public static void main(final String[] args)
throws IOException
{
final String filename = args[0];
POIFSReader r = new POIFSReader();
/* Register a listener for *all* documents. */
r.registerListener(new MyPOIFSReaderListener());
r.read(new FileInputStream(filename));
}
static class MyPOIFSReaderListener implements POIFSReaderListener
{
public void processPOIFSReaderEvent(final POIFSReaderEvent event)
{
PropertySet ps = null;
try
{
ps = PropertySetFactory.create(event.getStream());
}
catch (NoPropertySetStreamException ex)
{
out("No property set stream: \"" + event.getPath() +
event.getName() + "\"");
return;
}
catch (Exception ex)
{
throw new RuntimeException
("Property set stream \"" +
event.getPath() + event.getName() + "\": " + ex);
}
/* Print the name of the property set stream: */
out("Property set stream \"" + event.getPath() +
event.getName() + "\":");
/* Print the number of sections: */
final long sectionCount = ps.getSectionCount();
out(" No. of sections: " + sectionCount);
/* Print the list of sections: */
List sections = ps.getSections();
int nr = 0;
for (Iterator i = sections.iterator(); i.hasNext();)
{
/* Print a single section: */
Section sec = i.next();
out(" Section " + nr++ + ":");
String s = hex(sec.getFormatID().getBytes());
s = s.substring(0, s.length() - 1);
out(" Format ID: " + s);
/* Print the number of properties in this section. */
int propertyCount = sec.getPropertyCount();
out(" No. of properties: " + propertyCount);
/* Print the properties: */
Property[] properties = sec.getProperties();
for (int i2 = 0; i2 < properties.length; i2++)
{
/* Print a single property: */
Property p = properties[i2];
long id = p.getID();
long type = p.getType();
Object value = p.getValue();
out(" Property ID: " + id + ", type: " + type +
", value: " + value);
}
}
}
}
static void out(final String msg)
{
System.out.println(msg);
}
static String hex(final byte[] bytes)
{
return HexDump.dump(bytes, 0L, 0);
}
}