git-svn-id: https://svn.d4science.research-infrastructures.eu/gcube/trunk/portlets/user/tabular-data-csv-import-widget@84042 82a268e6-3cf1-43bd-a215-b396298e98cf
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/**
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*
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*/
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package org.gcube.portlets.user.csvimportwizardtd.client.csvgrid;
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import java.util.ArrayList;
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import org.gcube.portlets.user.csvimportwizardtd.client.data.CSVRow;
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import org.gcube.portlets.user.csvimportwizardtd.client.data.CSVRowKeyProvider;
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import org.gcube.portlets.user.csvimportwizardtd.client.data.CSVRowValueProvider;
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import com.allen_sauer.gwt.log.client.Log;
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import com.google.gwt.core.client.GWT;
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import com.google.gwt.http.client.RequestBuilder;
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import com.sencha.gxt.core.client.IdentityValueProvider;
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import com.sencha.gxt.data.client.loader.HttpProxy;
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import com.sencha.gxt.data.shared.ListStore;
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import com.sencha.gxt.data.shared.loader.DataReader;
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import com.sencha.gxt.data.shared.loader.ListLoadConfig;
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import com.sencha.gxt.data.shared.loader.ListLoadResult;
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import com.sencha.gxt.data.shared.loader.ListLoader;
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import com.sencha.gxt.data.shared.loader.LoadResultListStoreBinding;
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import com.sencha.gxt.widget.core.client.grid.ColumnConfig;
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import com.sencha.gxt.widget.core.client.grid.ColumnModel;
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import com.sencha.gxt.widget.core.client.grid.Grid;
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import com.sencha.gxt.widget.core.client.grid.RowNumberer;
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/**
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*
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* @author "Giancarlo Panichi"
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* <a href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
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*
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*/
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public class CSVGrid extends Grid<CSVRow> {
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private static final String csvImportFileServlet="CSVImportFileServlet";
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protected CSVGridView gridViewSample;
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public CSVGrid()
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{
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super(new ListStore<CSVRow>(new CSVRowKeyProvider()), new ColumnModel<CSVRow>(new ArrayList<ColumnConfig<CSVRow,?>>()));
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setHeight(200);
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setBorders(true);
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getView().setStripeRows(true);
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setLoadMask(true);
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gridViewSample = new CSVGridView();
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setView(gridViewSample);
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getView().setEmptyText("No data to show");
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setBorders(true);
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}
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public void configureColumns(ArrayList<String> columnNames)
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{
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ColumnModel<CSVRow> columnModel = createColumnModel(columnNames);
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ListStore<CSVRow> store = createStore(columnNames);
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reconfigure(store, columnModel);
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getView().refresh(true);
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}
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protected ListStore<CSVRow> createStore(ArrayList<String> columnNames)
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{
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String path = GWT.getModuleBaseURL()+csvImportFileServlet;
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Log.info("CSVImportFileServlet path:"+path);
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// use a http proxy to get the data
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RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
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HttpProxy<ListLoadConfig> proxy = new HttpProxy<ListLoadConfig>(builder);
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// need a loader, proxy, and reader
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DataReader<ListLoadResult<CSVRow>, String> reader = new CSVJsonReader();
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final ListLoader<ListLoadConfig, ListLoadResult<CSVRow>> loader = new ListLoader<ListLoadConfig, ListLoadResult<CSVRow>>(proxy, reader);
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ListStore<CSVRow> store = new ListStore<CSVRow>(new CSVRowKeyProvider());
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loader.addLoadHandler(new LoadResultListStoreBinding<ListLoadConfig, CSVRow, ListLoadResult<CSVRow>>(store));
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loader.load();
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return store;
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}
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protected ColumnModel<CSVRow> createColumnModel(ArrayList<String> columnNames)
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{
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ArrayList<ColumnConfig<CSVRow, ?>> columns = new ArrayList<ColumnConfig<CSVRow, ?>>();
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columns.add(new RowNumberer<CSVRow>(new IdentityValueProvider<CSVRow>()));
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for (int i = 0; i<columnNames.size(); i++) {
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String columnField = "field"+(i+1);
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String columnName = columnNames.get(i);
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ColumnConfig<CSVRow, String> columnConfig = new ColumnConfig<CSVRow, String>(new CSVRowValueProvider(columnField), 100, columnName);
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columns.add(columnConfig);
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}
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return new ColumnModel<CSVRow>(columns);
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}
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/**
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* Returns the import column mask.
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* @return an array of boolean where the item is <code>true</code> if the column have to be imported, <code>false</code> otherwise.
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*/
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public boolean[] getImportColumnsMask()
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{
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boolean[] columnMask = new boolean[getColumnModel().getColumnCount()];
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ArrayList<Integer> excluded = gridViewSample.getExcludedColumns();
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for (int i = 0; i<columnMask.length; i++) columnMask[i] = !excluded.contains(i);
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return columnMask;
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}
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}
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/**
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*
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*/
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package org.gcube.portlets.user.csvimportwizardtd.client.csvgrid;
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import java.util.ArrayList;
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import org.gcube.portlets.user.csvimportwizardtd.client.data.CSVRow;
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import org.gcube.portlets.user.csvimportwizardtd.client.dataresource.ResourceBundle;
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import com.google.gwt.event.logical.shared.SelectionEvent;
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import com.google.gwt.event.logical.shared.SelectionHandler;
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import com.sencha.gxt.core.client.ValueProvider;
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import com.sencha.gxt.widget.core.client.grid.GridView;
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import com.sencha.gxt.widget.core.client.grid.GridViewConfig;
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import com.sencha.gxt.widget.core.client.menu.CheckMenuItem;
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import com.sencha.gxt.widget.core.client.menu.Item;
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import com.sencha.gxt.widget.core.client.menu.Menu;
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/**
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* @author Federico De Faveri defaveri@isti.cnr.it
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*
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*/
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public class CSVGridView extends GridView<CSVRow> {
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protected ArrayList<Integer> excludedColumns = new ArrayList<Integer>();
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public CSVGridView()
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{
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setViewConfig(new GridViewConfig<CSVRow>() {
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@Override
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public String getRowStyle(CSVRow model, int rowIndex) {
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return "";
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}
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@Override
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public String getColStyle(CSVRow model, ValueProvider<? super CSVRow, ?> valueProvider, int rowIndex, int colIndex) {
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return excludedColumns.contains(colIndex)?ResourceBundle.INSTANCE.importCss().getColumnExcluded():"";
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}
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});
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}
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@Override
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protected Menu createContextMenu(final int colIndex) {
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Menu menu = new Menu();
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CheckMenuItem includeMenu = new CheckMenuItem("Include");
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includeMenu.setGroup("include");
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includeMenu.setChecked(!excludedColumns.contains(colIndex));
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menu.add(includeMenu);
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includeMenu.addSelectionHandler(new SelectionHandler<Item>() {
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@Override
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public void onSelection(SelectionEvent<Item> event) {
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excludedColumns.remove(new Integer(colIndex));
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refresh(false);
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}
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});
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CheckMenuItem excludeMenu = new CheckMenuItem("Exclude");
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excludeMenu.setGroup("include");
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excludeMenu.setChecked(excludedColumns.contains(colIndex));
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menu.add(excludeMenu);
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excludeMenu.addSelectionHandler(new SelectionHandler<Item>() {
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@Override
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public void onSelection(SelectionEvent<Item> event) {
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excludedColumns.add(colIndex);
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refresh(false);
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}
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});
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return menu;
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}
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/**
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* Returns the excluded columns by index.
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* @return an {@link ArrayList} of excluded column index.
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*/
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public ArrayList<Integer> getExcludedColumns() {
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return excludedColumns;
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}
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}
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/**
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*
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*/
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package org.gcube.portlets.user.csvimportwizardtd.client.csvgrid;
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import org.gcube.portlets.user.csvimportwizardtd.client.data.CSVData;
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import org.gcube.portlets.user.csvimportwizardtd.client.data.CSVRow;
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import com.sencha.gxt.data.shared.loader.DataReader;
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import com.sencha.gxt.data.shared.loader.ListLoadResult;
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import com.sencha.gxt.data.shared.loader.ListLoadResultBean;
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/**
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* @author "Federico De Faveri defaveri@isti.cnr.it"
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*
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*/
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public class CSVJsonReader implements DataReader<ListLoadResult<CSVRow>, String> {
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/**
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* {@inheritDoc}
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*/
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@Override
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public ListLoadResult<CSVRow> read(Object loadConfig, String json) {
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CSVData data = CSVData.getCSVData(json);
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return new ListLoadResultBean<CSVRow>(data.getRows());
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}
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}
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