core/plugins/org.eclipse.dltk.ui/src/org/eclipse/dltk/internal/ui/ModelElementActionFilterAdapter.java

package org.eclipse.dltk.internal.ui;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.dltk.core.DLTKCore;
import org.eclipse.dltk.ui.actions.IActionFilterTester;
import org.eclipse.ui.IActionFilter;

public class ModelElementActionFilterAdapter implements IActionFilter {
	private final static String ACTION_FILTER_TESTER = "org.eclipse.dltk.ui.actionFilterTester"; //$NON-NLS-1$
	private static IdBasedExtensionManager actionFilterTesters = new IdBasedExtensionManager(ACTION_FILTER_TESTER);

	@Override
	public boolean testAttribute(Object target, String name, String value) {
		try {
			IActionFilterTester tester = actionFilterTesters.getObject(name);
			if( tester == null ) {
				return false;
			}
			return tester.test(target, name, value);
		} catch (CoreException e) {
			if( DLTKCore.DEBUG ) {
				e.printStackTrace();
			}
		}
		return false;
	}
}