Java tutorial
/* (C) Copyright 2013-2016 The RISCOSS Project Consortium Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ /** * @author Alberto Siena **/ package eu.riscoss.client.rdr; import java.util.ArrayList; import java.util.List; import org.fusesource.restygwt.client.JsonCallback; import org.fusesource.restygwt.client.Method; import org.fusesource.restygwt.client.Resource; import com.google.gwt.cell.client.AbstractCell; import com.google.gwt.cell.client.TextCell; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.json.client.JSONObject; import com.google.gwt.json.client.JSONValue; import com.google.gwt.resources.client.ImageResource; import com.google.gwt.safehtml.shared.SafeHtmlBuilder; import com.google.gwt.user.cellview.client.CellList; import com.google.gwt.user.cellview.client.CellTable; import com.google.gwt.user.cellview.client.Column; import com.google.gwt.user.cellview.client.SimplePager; import com.google.gwt.user.cellview.client.TextColumn; import com.google.gwt.user.cellview.client.CellTable.Resources; import com.google.gwt.user.cellview.client.HasKeyboardPagingPolicy.KeyboardPagingPolicy; import com.google.gwt.user.cellview.client.HasKeyboardSelectionPolicy.KeyboardSelectionPolicy; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.DockPanel; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.Label; import com.google.gwt.user.client.ui.RootPanel; import com.google.gwt.user.client.ui.VerticalPanel; import com.google.gwt.view.client.ListDataProvider; import com.google.gwt.view.client.SelectionChangeEvent; import com.google.gwt.view.client.SingleSelectionModel; import com.google.gwt.view.client.SelectionChangeEvent.Handler; import eu.riscoss.client.EntityInfo; import eu.riscoss.client.RiscossJsonClient; import eu.riscoss.client.entities.TableResources; class ContactCell extends AbstractCell<EntityInfo> { public ContactCell(ImageResource image) { } @Override public void render(Context context, EntityInfo value, SafeHtmlBuilder sb) { // Value can be null, so do a null check.. if (value == null) { return; } // sb.appendHtmlConstant("<table><tr><td style='font-size:95%;'>"); sb.appendHtmlConstant("<a class='gwt-Anchor' href='javascript:'>"); sb.appendEscaped(value.getName()); sb.appendHtmlConstant("</a>"); // sb.appendHtmlConstant("</td></tr></table>"); } } public class RDRModule implements EntryPoint { DockPanel dock = new DockPanel(); List<JSONObject> listEntities; ListDataProvider<JSONObject> dataProvider; SimplePager pager = new SimplePager(); CellTable<JSONObject> cellList; VerticalPanel page = new VerticalPanel(); HorizontalPanel mainView = new HorizontalPanel(); VerticalPanel leftPanel = new VerticalPanel(); VerticalPanel rightPanel = new VerticalPanel(); EntityDataBox ppg = null; public RDRModule() { } public void onModuleLoad() { RiscossJsonClient.listEntities(new JsonCallback() { @Override public void onFailure(Method method, Throwable exception) { // TODO Auto-generated method stub } @Override public void onSuccess(Method method, JSONValue response) { listEntities = new ArrayList<>(); for (int i = 0; i < response.isArray().size(); ++i) { if (!response.isArray().get(i).isObject().get("name").isString().stringValue().equals("-")) listEntities.add(response.isArray().get(i).isObject()); } cellList = new CellTable<JSONObject>(15, (Resources) GWT.create(TableResources.class)); cellList.setStyleName("list"); cellList.setPageSize(30); cellList.setKeyboardPagingPolicy(KeyboardPagingPolicy.INCREASE_RANGE); cellList.setKeyboardSelectionPolicy(KeyboardSelectionPolicy.BOUND_TO_SELECTION); final SingleSelectionModel<JSONObject> selectionModel = new SingleSelectionModel<JSONObject>(); cellList.setSelectionModel(selectionModel); selectionModel.addSelectionChangeHandler(new Handler() { @Override public void onSelectionChange(SelectionChangeEvent arg0) { ppg.setSelectedEntity( selectionModel.getSelectedObject().get("name").isString().stringValue()); } }); Column<JSONObject, String> t = new Column<JSONObject, String>(new TextCell()) { @Override public String getValue(JSONObject arg0) { return arg0.get("name").isString().stringValue(); } }; Column<JSONObject, String> t2 = new Column<JSONObject, String>(new TextCell()) { @Override public String getValue(JSONObject arg0) { return arg0.get("layer").isString().stringValue(); } }; cellList.addColumn(t, "Entity"); cellList.addColumn(t2, "Layer"); cellList.setWidth("100%"); if (listEntities.size() > 0) cellList.setRowData(0, listEntities); else { listEntities.add(new JSONObject()); cellList.setRowData(0, listEntities); listEntities.remove(0); } cellList.setStyleName("table"); dataProvider = new ListDataProvider<JSONObject>(); dataProvider.addDataDisplay(cellList); for (int i = 0; i < listEntities.size(); i++) { dataProvider.getList().add(listEntities.get(i)); } pager = new SimplePager(); pager.setDisplay(cellList); ppg = new EntityDataBox(); dock.setWidth("100%"); dock.add(cellList, DockPanel.CENTER); dock.add(ppg.asWidget(), DockPanel.EAST); dock.setCellWidth(ppg.asWidget(), "60%"); mainView.setStyleName("mainViewLayer"); //mainView.setWidth("100%"); leftPanel.setStyleName("leftPanelLayer"); leftPanel.setWidth("400px"); //leftPanel.setHeight("100%"); rightPanel.setStyleName("rightPanelLayer"); page.setWidth("100%"); Label title = new Label("Risk Data Repository"); title.setStyleName("title"); page.add(title); leftPanel.add(cellList); leftPanel.add(pager); rightPanel.add(ppg); rightPanel.setWidth("90%"); mainView.add(leftPanel); mainView.add(rightPanel); page.add(mainView); RootPanel.get().add(page); } }); } }