Class FilteringEventListener

java.lang.Object
org.apache.xmlgraphics.ps.dsc.FilteringEventListener
All Implemented Interfaces:
DSCListener

public class FilteringEventListener extends Object implements DSCListener
DSCListener implementation that filters certain DSC events.
  • Constructor Details

    • FilteringEventListener

      public FilteringEventListener(DSCFilter filter)
      Main constructor.
      Parameters:
      filter - the filter
  • Method Details

    • processEvent

      public void processEvent(DSCEvent event, DSCParser parser) throws IOException, DSCException
      Called for each DSC event. You can call methods on the DSC parser to skip comments, for example. But implementations need to be good citizens and take into account that multiple listeners can be active at the same time and that they might interfere with other listeners. When returning from the call, state information such as filters should be restored.
      Specified by:
      processEvent in interface DSCListener
      Parameters:
      event - the DSC event
      parser - the DSC parser
      Throws:
      IOException - if an I/O error occurs
      DSCException - if a DSC-specific error occurs