FiltersContentProvider.java

/*******************************************************************************
 * Copyright (c) 2012 Zend Technologies.
 * All rights reserved. This program and the accompanying materials
 * are the copyright of Zend Technologies and is protected under
 * copyright laws of the United States.
 * You must not copy, adapt or redistribute this document for 
 * any use.
 *******************************************************************************/
package org.zend.php.zendserver.monitor.ui.preferences;

import java.util.List;

import org.eclipse.jface.menus.IWidget;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.zend.php.zendserver.monitor.core.MonitorManager;

/**
 * @author Wojciech Galanciak, 2012
 * 
 */
public class FiltersContentProvider implements ITreeContentProvider {

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.jface.viewers.IContentProvider#dispose()
	 */
	public void dispose() {
		// empty
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface
	 * .viewers.Viewer, java.lang.Object, java.lang.Object)
	 */
	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.jface.viewers.ITreeContentProvider#getElements(java.lang.
	 * Object)
	 */
	public Object[] getElements(Object input) {
		if (input instanceof String) {
			String[] segments = ((String) input)
					.split(MonitorManager.FILTER_SEPARATOR);
			return segments;
		}
		if (input instanceof Object[]) {
			return (Object[]) input;
		}
		if (input instanceof List<?>) {
			return ((List<?>) input).toArray(new Object[0]);
		}
		return null;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.
	 * Object)
	 */
	public Object[] getChildren(Object parentElement) {
		return null;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object
	 * )
	 */
	public Object getParent(Object element) {
		return null;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.
	 * Object)
	 */
	public boolean hasChildren(Object element) {
		Object[] obj = getChildren(element);
		return obj != null && obj.length > 0;
	}

	public Object[] addElement(IWidget model, TreeViewer viewer) {
		return null;
	}

}