org.apache.poi.hpsf.examples.ReadTitle Maven / Gradle / Ivy
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package org.apache.poi.hpsf.examples;
import java.io.FileInputStream;
import java.io.IOException;
import org.apache.poi.hpsf.PropertySetFactory;
import org.apache.poi.hpsf.SummaryInformation;
import org.apache.poi.poifs.eventfilesystem.POIFSReader;
import org.apache.poi.poifs.eventfilesystem.POIFSReaderEvent;
import org.apache.poi.poifs.eventfilesystem.POIFSReaderListener;
/**
* Sample application showing how to read a OLE 2 document's
* title. 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 ReadTitle
{
/**
* Runs the example program.
*
* @param args Command-line arguments. The first command-line argument must
* be the name of a POI filesystem to read.
* @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();
r.registerListener(new MyPOIFSReaderListener(),
"\005SummaryInformation");
r.read(new FileInputStream(filename));
}
static class MyPOIFSReaderListener implements POIFSReaderListener
{
public void processPOIFSReaderEvent(final POIFSReaderEvent event)
{
SummaryInformation si = null;
try
{
si = (SummaryInformation)
PropertySetFactory.create(event.getStream());
}
catch (Exception ex)
{
throw new RuntimeException
("Property set stream \"" +
event.getPath() + event.getName() + "\": " + ex);
}
final String title = si.getTitle();
if (title != null)
System.out.println("Title: \"" + title + "\"");
else
System.out.println("Document has no title.");
}
}
}