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.rulelist; import java.util.ArrayList; import java.util.Date; import java.util.HashSet; import java.util.List; import java.util.Set; import org.drools.guvnor.client.common.GenericCallback; import org.drools.guvnor.client.messages.Constants; import org.drools.guvnor.client.resources.RuleFormatImageResource; import org.drools.guvnor.client.rpc.AssetPageRequest; import org.drools.guvnor.client.rpc.AssetPageResponse; import org.drools.guvnor.client.rpc.AssetPageRow; import org.drools.guvnor.client.rpc.RepositoryServiceAsync; import org.drools.guvnor.client.rpc.RepositoryServiceFactory; import org.drools.guvnor.client.ruleeditor.EditorLauncher; import org.drools.guvnor.client.ruleeditor.MultiViewRow; import org.drools.guvnor.client.table.ColumnPicker; import org.drools.guvnor.client.table.SelectionColumn; import org.drools.guvnor.client.table.SortableHeader; import org.drools.guvnor.client.table.SortableHeaderGroup; import com.google.gwt.cell.client.ButtonCell; import com.google.gwt.cell.client.DateCell; import com.google.gwt.cell.client.FieldUpdater; import com.google.gwt.core.client.GWT; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.i18n.client.DateTimeFormat; import com.google.gwt.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.uibinder.client.UiHandler; 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.TextHeader; import com.google.gwt.user.client.Command; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.Composite; import com.google.gwt.user.client.ui.Image; import com.google.gwt.user.client.ui.ToggleButton; import com.google.gwt.user.client.ui.Widget; import com.google.gwt.view.client.AsyncDataProvider; import com.google.gwt.view.client.HasData; import com.google.gwt.view.client.MultiSelectionModel; import com.google.gwt.view.client.ProvidesKey; /** * Widget with a table of assets. * @author Geoffrey De Smet */ public class AssetTable extends Composite { private static final Constants constants = GWT.create(Constants.class); interface AssetTableBinder extends UiBinder<Widget, AssetTable> { } private static AssetTableBinder uiBinder = GWT.create(AssetTableBinder.class); private RepositoryServiceAsync repositoryService = RepositoryServiceFactory.getService(); // TODO use (C)DI private final String packageUuid; private final List<String> formatInList; private final Boolean formatIsRegistered; private final EditItemEvent editEvent; private int pageSize = 25; // TODO might need to be configurable, or a constant private String feedURL; private Set<Command> unloadListenerSet = new HashSet<Command>(); @UiField(provided = true) ToggleButton columnPickerButton; @UiField() Image feedImage; @UiField(provided = true) CellTable<AssetPageRow> cellTable; private AsyncDataProvider<AssetPageRow> dataProvider; @UiField(provided = true) SimplePager pager; private MultiSelectionModel<AssetPageRow> selectionModel; public AssetTable(String packageUuid, List<String> formatInList, Boolean formatIsRegistered, EditItemEvent event) { this(packageUuid, formatInList, formatIsRegistered, event, null); } public AssetTable(String packageUuid, List<String> formatInList, Boolean formatIsRegistered, final EditItemEvent event, String feedURL) { this.packageUuid = packageUuid; this.formatInList = formatInList; this.formatIsRegistered = formatIsRegistered; this.editEvent = event; this.feedURL = feedURL; doCellTable(); initWidget(uiBinder.createAndBindUi(this)); if (feedURL == null) { feedImage.setVisible(false); } } private void doCellTable() { ProvidesKey<AssetPageRow> providesKey = new ProvidesKey<AssetPageRow>() { public Object getKey(AssetPageRow row) { return row.getUuid(); } }; cellTable = new CellTable<AssetPageRow>(providesKey); selectionModel = new MultiSelectionModel<AssetPageRow>(providesKey); cellTable.setSelectionModel(selectionModel); SelectionColumn.createAndAddSelectionColumn(cellTable); ColumnPicker<AssetPageRow> columnPicker = new ColumnPicker<AssetPageRow>(cellTable); SortableHeaderGroup sortableHeaderGroup = new SortableHeaderGroup<AssetPageRow>(cellTable); final TextColumn<AssetPageRow> uuidNumberColumn = new TextColumn<AssetPageRow>() { public String getValue(AssetPageRow row) { return row.getUuid(); } }; columnPicker.addColumn(uuidNumberColumn, new SortableHeader<AssetPageRow, String>(sortableHeaderGroup, constants.uuid(), uuidNumberColumn), false); Column<AssetPageRow, RuleFormatImageResource> formatColumn = new Column<AssetPageRow, RuleFormatImageResource>( new RuleFormatImageResourceCell()) { public RuleFormatImageResource getValue(AssetPageRow row) { return EditorLauncher.getAssetFormatIcon(row.getFormat()); } }; columnPicker.addColumn(formatColumn, new SortableHeader<AssetPageRow, RuleFormatImageResource>( sortableHeaderGroup, constants.Format(), formatColumn), true); TextColumn<AssetPageRow> packageNameColumn = new TextColumn<AssetPageRow>() { public String getValue(AssetPageRow row) { return row.getPackageName(); } }; columnPicker.addColumn(packageNameColumn, new SortableHeader<AssetPageRow, String>(sortableHeaderGroup, constants.PackageName(), packageNameColumn), false); TextColumn<AssetPageRow> nameColumn = new TextColumn<AssetPageRow>() { public String getValue(AssetPageRow row) { return row.getName(); } }; columnPicker.addColumn(nameColumn, new SortableHeader<AssetPageRow, String>(sortableHeaderGroup, constants.Name(), nameColumn), true); TextColumn<AssetPageRow> descriptionColumn = new TextColumn<AssetPageRow>() { public String getValue(AssetPageRow row) { return row.getDescription(); } }; columnPicker.addColumn(descriptionColumn, new SortableHeader<AssetPageRow, String>(sortableHeaderGroup, constants.Description(), descriptionColumn), true); TextColumn<AssetPageRow> stateNameColumn = new TextColumn<AssetPageRow>() { public String getValue(AssetPageRow row) { return row.getStateName(); } }; columnPicker.addColumn(stateNameColumn, new SortableHeader<AssetPageRow, String>(sortableHeaderGroup, constants.Status(), stateNameColumn), true); TextColumn<AssetPageRow> creatorColumn = new TextColumn<AssetPageRow>() { public String getValue(AssetPageRow row) { return row.getCreator(); } }; columnPicker.addColumn(creatorColumn, new SortableHeader<AssetPageRow, String>(sortableHeaderGroup, constants.Creator(), creatorColumn), false); Column<AssetPageRow, Date> createdDateColumn = new Column<AssetPageRow, Date>( new DateCell(DateTimeFormat.getFormat(DateTimeFormat.PredefinedFormat.DATE_TIME_MEDIUM))) { public Date getValue(AssetPageRow row) { return row.getCreatedDate(); } }; columnPicker.addColumn(createdDateColumn, new SortableHeader<AssetPageRow, Date>(sortableHeaderGroup, constants.CreatedDate(), createdDateColumn), false); TextColumn<AssetPageRow> lastContributorColumn = new TextColumn<AssetPageRow>() { public String getValue(AssetPageRow row) { return row.getLastContributor(); } }; columnPicker.addColumn(lastContributorColumn, new SortableHeader<AssetPageRow, String>(sortableHeaderGroup, constants.LastContributor(), lastContributorColumn), false); Column<AssetPageRow, Date> lastModifiedColumn = new Column<AssetPageRow, Date>( new DateCell(DateTimeFormat.getFormat(DateTimeFormat.PredefinedFormat.DATE_TIME_MEDIUM))) { public Date getValue(AssetPageRow row) { return row.getLastModified(); } }; columnPicker.addColumn(lastModifiedColumn, new SortableHeader<AssetPageRow, Date>(sortableHeaderGroup, constants.LastModified(), lastModifiedColumn), true); TextColumn<AssetPageRow> categorySummaryColumn = new TextColumn<AssetPageRow>() { public String getValue(AssetPageRow row) { return row.getCategorySummary(); } }; columnPicker.addColumn(categorySummaryColumn, new SortableHeader<AssetPageRow, String>(sortableHeaderGroup, constants.Categories(), categorySummaryColumn), false); TextColumn<AssetPageRow> externalSourceColumn = new TextColumn<AssetPageRow>() { public String getValue(AssetPageRow row) { return row.getExternalSource(); } }; columnPicker.addColumn(externalSourceColumn, new SortableHeader<AssetPageRow, String>(sortableHeaderGroup, constants.ExternalSource(), externalSourceColumn), false); Column<AssetPageRow, String> openColumn = new Column<AssetPageRow, String>(new ButtonCell()) { public String getValue(AssetPageRow row) { return constants.Open(); } }; openColumn.setFieldUpdater(new FieldUpdater<AssetPageRow, String>() { public void update(int index, AssetPageRow row, String value) { editEvent.open(row.getUuid()); } }); columnPicker.addColumn(openColumn, new TextHeader(constants.Open()), true); cellTable.setPageSize(pageSize); cellTable.setWidth("100%"); pager = new SimplePager(); pager.setDisplay(cellTable); dataProvider = new AsyncDataProvider<AssetPageRow>() { protected void onRangeChanged(HasData<AssetPageRow> display) { AssetPageRequest request = new AssetPageRequest(); request.setPackageUuid(packageUuid); request.setFormatInList(formatInList); request.setFormatIsRegistered(formatIsRegistered); request.setStartRowIndex(pager.getPageStart()); request.setPageSize(pageSize); repositoryService.findAssetPage(request, new GenericCallback<AssetPageResponse>() { public void onSuccess(AssetPageResponse response) { updateRowCount(response.getTotalRowSize(), true); updateRowData(response.getStartRowIndex(), response.getAssetPageRowList()); } }); } }; dataProvider.addDataDisplay(cellTable); columnPickerButton = columnPicker.createToggleButton(); } @UiHandler("feedImage") void openFeed(ClickEvent e) { Window.open(feedURL, "_blank", null); } @UiHandler("refreshButton") void refresh(ClickEvent e) { refresh(); } @UiHandler("openSelectedButton") void openSelected(ClickEvent e) { Set<AssetPageRow> selectedSet = selectionModel.getSelectedSet(); for (AssetPageRow selected : selectedSet) { // TODO directly push the selected AssetPageRow editEvent.open(selected.getUuid()); } } @UiHandler("openSelectedToSingleTabButton") public void openSelectedToSingleTab(ClickEvent e) { Set<AssetPageRow> selectedSet = selectionModel.getSelectedSet(); // TODO directly push the selected AssetPageRows List<MultiViewRow> multiViewRowList = new ArrayList<MultiViewRow>(selectedSet.size()); for (AssetPageRow selected : selectedSet) { MultiViewRow row = new MultiViewRow(); row.uuid = selected.getUuid(); row.format = selected.getFormat(); row.name = selected.getName(); multiViewRowList.add(row); } editEvent.open(multiViewRowList.toArray(new MultiViewRow[multiViewRowList.size()])); } /** * Refreshes the data. Does not rebuild the GUI. */ public void refresh() { cellTable.setVisibleRangeAndClearData(cellTable.getVisibleRange(), true); } /** * @param unloadListener never null */ public void addUnloadListener(Command unloadListener) { unloadListenerSet.add(unloadListener); } @Override protected void onUnload() { super.onUnload(); for (Command unloadListener : unloadListenerSet) { unloadListener.execute(); } } }