org.apache.poi.examples.hpsf.ReadCustomPropertySets Maven / Gradle / Ivy
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package org.apache.poi.examples.hpsf;
import java.io.File;
import java.io.IOException;
import java.util.List;
import org.apache.poi.hpsf.HPSFRuntimeException;
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;
/**
* 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.
*/
@SuppressWarnings({"java:S106","java:S4823"})
public final class ReadCustomPropertySets {
private 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(ReadCustomPropertySets::processPOIFSReaderEvent);
r.read(new File(filename));
}
public static void processPOIFSReaderEvent(final POIFSReaderEvent event) {
final String streamName = event.getPath() + event.getName();
PropertySet ps;
try {
ps = PropertySetFactory.create(event.getStream());
} catch (NoPropertySetStreamException ex) {
out("No property set stream: \"" + streamName + "\"");
return;
} catch (Exception ex) {
throw new HPSFRuntimeException("Property set stream \"" + streamName + "\": " + ex);
}
/* Print the name of the property set stream: */
out("Property set stream \"" + streamName + "\":");
/* 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 (Section sec : sections) {
/* Print a single section: */
out(" Section " + nr++ + ":");
String s = sec.getFormatID().toString();
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 (Property p : properties) {
/* Print a single property: */
long id = p.getID();
long type = p.getType();
Object value = p.getValue();
out(" Property ID: " + id + ", type: " + type +
", value: " + value);
}
}
}
private static void out(final String msg) {
System.out.println(msg);
}
}