package org.autoplot.util; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.util.logging.Level; import org.das2.system.RequestProcessor; import org.das2.util.LoggerManager; import java.util.logging.Logger; /** * maybe a handy class to have something run later. * @author jbf */ public abstract class RunLaterListener implements PropertyChangeListener, Runnable { private static final Logger logger= LoggerManager.getLogger("autoplot.dom"); public interface PropertyChange { public void addPropertyChangeListener(String propertyName, PropertyChangeListener listener); public void addPropertyChangeListener(PropertyChangeListener listener); public void removePropertyChangeListener( PropertyChangeListener list ); public void removePropertyChangeListener( String propertyName, PropertyChangeListener list ); } PropertyChange node; String propertyName; boolean immediatelyAfter; int invocationCount=0; //private static int instanceCount=0; /** * * @param propertyName the property name we listen to. * @param node the object that we listen to. * @param immediatelyAfter run this on the change notification thread. If false, a new thread is used to run this. */ public RunLaterListener( String propertyName, PropertyChange node, boolean immediatelyAfter ) { //instanceCount++; this.node= node; this.propertyName= propertyName; this.immediatelyAfter= immediatelyAfter; if ( propertyName!=null ) { this.node.addPropertyChangeListener( propertyName, this ); } else { this.node.addPropertyChangeListener( this ); } } @Override public void propertyChange(PropertyChangeEvent evt) { invocationCount++; //if ( invocationCount>1 ) { //throw new IllegalArgumentException("this doesn't work"); //} if ( propertyName!=null ) { node.removePropertyChangeListener(propertyName,this); } else { node.removePropertyChangeListener(this); } if ( invocationCount>1 ) { return; } if ( immediatelyAfter ) { try { run(); } catch ( Exception ex ) { logger.log( Level.WARNING, "https://sourceforge.net/p/autoplot/bugs/2456/: error occurred which would block other listeners", ex ); } } else { RequestProcessor.invokeLater(this); } } @Override public abstract void run(); }