Java tutorial
/* * Copyright 2010 JBoss Inc * * 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. */ package org.drools.guvnor.client.ruleeditor; import java.util.ArrayList; import java.util.Arrays; import java.util.HashSet; import java.util.List; import java.util.Set; import org.drools.factconstraints.client.helper.ConstraintsContainer; import org.drools.factconstraints.client.helper.CustomFormsContainer; import org.drools.guvnor.client.common.AssetFormats; import org.drools.guvnor.client.common.SmallLabel; import org.drools.guvnor.client.packages.SuggestionCompletionCache; import org.drools.guvnor.client.rpc.RuleAsset; import org.drools.guvnor.client.rpc.WorkingSetConfigData; import org.drools.ide.common.client.modeldriven.SuggestionCompletionEngine; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.event.logical.shared.BeforeSelectionEvent; import com.google.gwt.event.logical.shared.BeforeSelectionHandler; import com.google.gwt.user.client.ui.Button; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.Grid; import com.google.gwt.user.client.ui.ListBox; import com.google.gwt.user.client.ui.ScrollPanel; import com.google.gwt.user.client.ui.TabPanel; public class WorkingSetEditor extends Composite implements EditorWidget { private RuleAsset workingSet; private ListBox availFacts = new ListBox(true); private ListBox validFacts = new ListBox(true); private ConstraintsContainer cc; private CustomFormsContainer cfc; private FactsConstraintsEditorPanel factsConstraintsgEditorPanel; private CustomFormsEditorPanel customFormsEditorPanel; public WorkingSetEditor(RuleAsset asset) { if (!AssetFormats.WORKING_SET.equals(asset.metaData.format)) { throw new IllegalArgumentException("asset must a be a workingset not a: " + asset.metaData.format); } workingSet = asset; WorkingSetConfigData wsData = (WorkingSetConfigData) workingSet.content; cc = new ConstraintsContainer(wsData.constraints); cfc = new CustomFormsContainer(wsData.customForms); refreshWidgets(); setWidth("100%"); } private void refreshWidgets() { WorkingSetConfigData wsData = (WorkingSetConfigData) workingSet.content; TabPanel tPanel = new TabPanel(); //tPanel.setWidth(800); ScrollPanel pnl = new ScrollPanel(); // pnl.setAutoWidth(true); //pnl.setClosable(false); pnl.setTitle("WS Definition"); //TODO {bauna} i18n // pnl.setAutoHeight(true); pnl.add(buildDoubleList(wsData)); tPanel.add(pnl, "WS Definition"); pnl = new ScrollPanel(); // pnl.setAutoWidth(true); //pnl.setClosable(false); //pnl.setTitle("WS Constraints"); //TODO {bauna} i18n // pnl.setAutoHeight(true); this.factsConstraintsgEditorPanel = new FactsConstraintsEditorPanel(this); pnl.add(this.factsConstraintsgEditorPanel); tPanel.add(pnl, "WS Constraints"); pnl = new ScrollPanel(); // pnl.setAutoWidth(true); //pnl.setClosable(false); pnl.setTitle("WS Custom Forms"); //TODO {bauna} i18n // pnl.setAutoHeight(true); this.customFormsEditorPanel = new CustomFormsEditorPanel(this); pnl.add(this.customFormsEditorPanel); tPanel.add(pnl, "WS Custom Forms"); tPanel.addBeforeSelectionHandler(new BeforeSelectionHandler<java.lang.Integer>() { public void onBeforeSelection(BeforeSelectionEvent<java.lang.Integer> arg0) { factsConstraintsgEditorPanel.fillSelectedFacts(); customFormsEditorPanel.fillSelectedFacts(); } }); tPanel.selectTab(0); initWidget(tPanel); } private Grid buildDoubleList(WorkingSetConfigData wsData) { Grid grid = new Grid(2, 3); SuggestionCompletionEngine sce = SuggestionCompletionCache.getInstance() .getEngineFromCache(workingSet.metaData.packageName); boolean filteringFact = sce.isFilteringFacts(); sce.setFilteringFacts(false); try { Set<String> elem = new HashSet<String>(); availFacts.setVisibleItemCount(10); validFacts.setVisibleItemCount(10); if (wsData.validFacts != null) { elem.addAll(Arrays.asList(wsData.validFacts)); for (String factName : wsData.validFacts) { validFacts.addItem(factName); } } for (String factName : sce.getFactTypes()) { if (!elem.contains(factName)) { availFacts.addItem(factName); } } Grid btnsPanel = new Grid(2, 1); btnsPanel.setWidget(0, 0, new Button(">", new ClickHandler() { public void onClick(ClickEvent sender) { copySelected(availFacts, validFacts); updateAsset(validFacts); factsConstraintsgEditorPanel.fillSelectedFacts(); customFormsEditorPanel.fillSelectedFacts(); } })); btnsPanel.setWidget(1, 0, new Button("<", new ClickHandler() { public void onClick(ClickEvent sender) { copySelected(validFacts, availFacts); updateAsset(validFacts); factsConstraintsgEditorPanel.fillSelectedFacts(); customFormsEditorPanel.fillSelectedFacts(); } })); grid.setWidget(0, 0, new SmallLabel("Available Facts")); //TODO i18n grid.setWidget(0, 1, new SmallLabel("")); grid.setWidget(0, 2, new SmallLabel("WorkingSet Facts")); //TODO i18n grid.setWidget(1, 0, availFacts); grid.setWidget(1, 1, btnsPanel); grid.setWidget(1, 2, validFacts); grid.getColumnFormatter().setWidth(0, "45%"); grid.getColumnFormatter().setWidth(0, "10%"); grid.getColumnFormatter().setWidth(0, "45%"); return grid; } finally { sce.setFilteringFacts(filteringFact); } } /** * This will get the save widgets. */ private void updateAsset(ListBox availFacts) { List<String> l = new ArrayList<String>(availFacts.getItemCount()); for (int i = 0; i < availFacts.getItemCount(); i++) { l.add(availFacts.getItemText(i)); } ((WorkingSetConfigData) workingSet.content).validFacts = l.toArray(new String[l.size()]); } private void copySelected(final ListBox from, final ListBox to) { int selected; while ((selected = from.getSelectedIndex()) != -1) { to.addItem(from.getItemText(selected)); from.removeItem(selected); factsConstraintsgEditorPanel.notifyValidFactsChanged(); customFormsEditorPanel.notifyValidFactsChanged(); } } public ConstraintsContainer getConstraintsConstrainer() { return cc; } public CustomFormsContainer getCustomFormsContainer() { return cfc; } protected RuleAsset getWorkingSet() { return workingSet; } protected ListBox getValidFactsListBox() { return this.validFacts; } }