package com.taobao.zeus.web.platform.client.module.tablemanager.component;
import java.util.ArrayList;
import java.util.List;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.logical.shared.SelectionEvent;
import com.google.gwt.event.logical.shared.SelectionHandler;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.user.client.ui.Frame;
import com.google.gwt.user.client.ui.IsWidget;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.Widget;
import com.sencha.gxt.cell.core.client.TextButtonCell;
import com.sencha.gxt.data.shared.ListStore;
import com.sencha.gxt.data.shared.ModelKeyProvider;
import com.sencha.gxt.widget.core.client.event.SelectEvent;
import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;
import com.sencha.gxt.widget.core.client.form.TextField;
import com.sencha.gxt.widget.core.client.grid.ColumnConfig;
import com.sencha.gxt.widget.core.client.grid.ColumnModel;
import com.sencha.gxt.widget.core.client.grid.Grid;
import com.sencha.gxt.widget.core.client.grid.GridSelectionModel;
import com.sencha.gxt.widget.core.client.grid.editing.GridEditing;
import com.sencha.gxt.widget.core.client.grid.editing.GridInlineEditing;
import com.taobao.zeus.web.platform.client.module.tablemanager.model.PartitionModel;
import com.taobao.zeus.web.platform.client.module.tablemanager.model.PartitionModelProperties;
import com.taobao.zeus.web.platform.client.module.tablemanager.model.TableModel;
import com.taobao.zeus.web.platform.client.module.word.images.Images;
import com.taobao.zeus.web.platform.client.util.PlatformContext;
import com.taobao.zeus.web.platform.client.util.RPCS;
import com.taobao.zeus.web.platform.client.util.async.AbstractAsyncCallback;
import com.taobao.zeus.web.platform.client.widget.TitledCell;
import com.taobao.zeus.web.platform.shared.rpc.TableManagerServiceAsync;
/**
* @author gufei.wzy 2012-9-21
*/
public class PartitionTab implements IsWidget {
@SuppressWarnings("unused")
private PlatformContext context;
private TableInfoPanel panel;
private ListStore<PartitionModel> store;
private Grid<PartitionModel> grid;
private final PartitionModelProperties props = GWT
.create(PartitionModelProperties.class);
private final TableManagerServiceAsync tableService = RPCS
.getTableManagerService();
public PartitionTab(TableInfoPanel p) {
this.panel = p;
this.context = p.getContext();
}
@Override
public Widget asWidget() {
if(grid==null){
ColumnConfig<PartitionModel, String> name = new ColumnConfig<PartitionModel, String>(
props.name(), 100, "名称");
name.setCell(new TitledCell());
ColumnConfig<PartitionModel, String> path = new ColumnConfig<PartitionModel, String>(
props.path(), 40, "路径");
path.setCell(new TitledCell());
ColumnConfig<PartitionModel, String> size = new ColumnConfig<PartitionModel, String>(
props.size(), 60, "大小");
size.setCell(new TitledCell() {
@Override
public void render(com.google.gwt.cell.client.Cell.Context context,
String value, SafeHtmlBuilder sb) {
if (value == null || value.equals("")) {
sb.appendHtmlConstant("Loading...");
} else {
super.render(context, value, sb);
}
}
});
ColumnConfig<PartitionModel, String> download = new ColumnConfig<PartitionModel, String>(
new com.sencha.gxt.core.client.ValueProvider<PartitionModel, String>(){
@Override
public String getValue(PartitionModel object){
return null;
}
@Override
public void setValue(PartitionModel object, String value){
}
@Override
public String getPath(){
return null;
}
} , 30, "下载");
final TextButtonCell downloadButton = new TextButtonCell();
downloadButton.setIcon(Images.getImageResources().download());
downloadButton.addSelectHandler(new SelectHandler() {
@Override
public void onSelect(SelectEvent event) {
downloadSelectPartition();
}
});
download.setCell(downloadButton);
List<ColumnConfig<PartitionModel, ?>> list = new ArrayList<ColumnConfig<PartitionModel, ?>>();
list.add(name);
list.add(path);
list.add(size);
list.add(download);
ColumnModel<PartitionModel> colModel = new ColumnModel<PartitionModel>(
list);
grid = new Grid<PartitionModel>(getStore(), colModel);
grid.setAllowTextSelection(true);
grid.getView().setForceFit(true);
grid.getView().setAutoFill(true);
// 名称和路径字段加上文本框，方便复制
final GridEditing<PartitionModel> editing = new GridInlineEditing<PartitionModel>(
grid);
editing.addEditor(path, new TextField());
editing.getEditor(path).setReadOnly(true);
editing.addEditor(name, new TextField());
editing.getEditor(name).setReadOnly(true);
// 选择时加载分区数据预览
GridSelectionModel<PartitionModel> gs = new GridSelectionModel<PartitionModel>();
gs.addSelectionHandler(new SelectionHandler<PartitionModel>() {
@Override
public void onSelection(SelectionEvent<PartitionModel> event) {
panel.getPresenter().loadDataPreview(event.getSelectedItem());
}
});
grid.setSelectionModel(gs);
}
return grid;
}
private void downloadSelectPartition() {
PartitionModel pm = grid.getSelectionModel().getSelectedItem();
if (RootPanel.get("downloadiframe") != null) {
Widget widgetFrame = (Widget) RootPanel
.get("downloadiframe");
widgetFrame.removeFromParent();
}
Frame frame = new Frame(GWT.getHostPageBaseURL()
+ "partition_download.do" + "?path=" + pm.getPath()
+ "&table=" + panel.getTable().getName());
frame.setVisible(false);
frame.setSize("0px", "0px");
RootPanel.get().add(frame);
}
public void load(final TableModel t) {
if (t == null)
return;
grid.mask("加载中...");
tableService.getPartitions(t,
new AbstractAsyncCallback<List<PartitionModel>>() {
@Override
public void onSuccess(List<PartitionModel> result) {
getStore().clear();
getStore().addAll(result);
grid.unmask();
// 读取分区大小
for (PartitionModel p : result) {
tableService
.fillPartitionSize(
p,
new AbstractAsyncCallback<PartitionModel>() {
@Override
public void onSuccess(
PartitionModel result) {
getStore().update(result);
}
});
}
}
@Override
public void onFailure(Throwable caught) {
super.onFailure(caught);
grid.unmask();
}
});
}
private ListStore<PartitionModel> getStore() {
if (store == null) {
store = new ListStore<PartitionModel>(
new ModelKeyProvider<PartitionModel>() {
@Override
public String getKey(PartitionModel item) {
return item.getName();
}
});
}
return store;
}
}