SystemPropertiesTab.java

/*******************************************************************************
 * Copyright (c) 2011, 2016 Eurotech and/or its affiliates
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Eurotech
 *******************************************************************************/
package org.eclipse.kura.web.client.device;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.kura.web.client.messages.Messages;
import org.eclipse.kura.web.client.util.FailureHandler;
import org.eclipse.kura.web.shared.model.GwtGroupedNVPair;
import org.eclipse.kura.web.shared.model.GwtSession;
import org.eclipse.kura.web.shared.model.GwtXSRFToken;
import org.eclipse.kura.web.shared.service.GwtDeviceService;
import org.eclipse.kura.web.shared.service.GwtDeviceServiceAsync;
import org.eclipse.kura.web.shared.service.GwtSecurityTokenService;
import org.eclipse.kura.web.shared.service.GwtSecurityTokenServiceAsync;

import com.extjs.gxt.ui.client.data.BaseListLoader;
import com.extjs.gxt.ui.client.data.ListLoadResult;
import com.extjs.gxt.ui.client.data.RpcProxy;
import com.extjs.gxt.ui.client.store.GroupingStore;
import com.extjs.gxt.ui.client.widget.LayoutContainer;
import com.extjs.gxt.ui.client.widget.grid.ColumnConfig;
import com.extjs.gxt.ui.client.widget.grid.ColumnModel;
import com.extjs.gxt.ui.client.widget.grid.Grid;
import com.extjs.gxt.ui.client.widget.grid.GroupingView;
import com.extjs.gxt.ui.client.widget.layout.FitLayout;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.rpc.AsyncCallback;


public class SystemPropertiesTab extends LayoutContainer 
{
	private static final Messages MSGS = GWT.create(Messages.class);

	private final GwtSecurityTokenServiceAsync gwtXSRFService = GWT.create(GwtSecurityTokenService.class);
	private final GwtDeviceServiceAsync gwtDeviceService = GWT.create(GwtDeviceService.class);

	@SuppressWarnings("unused")
	private GwtSession      m_currentSession;

	private boolean         m_initialized;

	private Grid<GwtGroupedNVPair> m_grid;
	private GroupingStore<GwtGroupedNVPair> m_store;	
	private BaseListLoader<ListLoadResult<GwtGroupedNVPair>> m_loader;


	public SystemPropertiesTab(GwtSession currentSession) {
		m_currentSession = currentSession;
		m_initialized    = false;
	}


	protected void onRender(Element parent, int index) 
	{        
		super.onRender(parent, index);         
		setLayout(new FitLayout());
		setId("device-system-properties");

		RpcProxy<ListLoadResult<GwtGroupedNVPair>> proxy = new RpcProxy<ListLoadResult<GwtGroupedNVPair>>() {  
			@Override  
			protected void load(Object loadConfig, final AsyncCallback<ListLoadResult<GwtGroupedNVPair>> callback) {
				gwtXSRFService.generateSecurityToken(new AsyncCallback<GwtXSRFToken> () {
					@Override
					public void onFailure(Throwable ex) {
						FailureHandler.handle(ex);
					}

					@Override
					public void onSuccess(GwtXSRFToken token) {	
						gwtDeviceService.findSystemProperties(token, new AsyncCallback<ListLoadResult<GwtGroupedNVPair>>() {    				
							public void onSuccess(ListLoadResult<GwtGroupedNVPair> pairs) {
								callback.onSuccess(pairs);
							}    				
							public void onFailure(Throwable caught) {
								FailureHandler.handle(caught);
							}
						});
					}});
			}
		};

		m_loader = new BaseListLoader<ListLoadResult<GwtGroupedNVPair>>(proxy);

		m_store = new GroupingStore<GwtGroupedNVPair>(m_loader);  
		m_store.groupBy("groupLoc");  

		ColumnConfig name  = new ColumnConfig("name",  MSGS.devicePropName(), 50);  
		ColumnConfig value = new ColumnConfig("value", MSGS.devicePropValue(), 50);  

		List<ColumnConfig> config = new ArrayList<ColumnConfig>();  
		config.add(name);  
		config.add(value);  

		ColumnModel cm = new ColumnModel(config);    
		GroupingView view = new GroupingView();  
		view.setShowGroupedColumn(false);  
		view.setForceFit(true);  

		m_grid = new Grid<GwtGroupedNVPair>(m_store, cm);  
		m_grid.setView(view);  
		m_grid.setBorders(false);
		m_grid.setLoadMask(true);
		m_grid.setStripeRows(true);

		add(m_grid);
		m_initialized = true;
	}


	public void refresh() 
	{
		if (m_initialized) {
			m_loader.load();
		}
	}
}