Java tutorial
/* * JBoss, Home of Professional Open Source. * Copyright 2010, Red Hat, Inc., and individual contributors * as indicated by the @author tags. See the copyright.txt file in the * distribution for a full listing of individual contributors. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.jboss.as.console.client.shared.runtime.logviewer; import com.google.gwt.dom.client.Style; import com.google.gwt.event.dom.client.ClickEvent; import com.google.gwt.event.dom.client.ClickHandler; import com.google.gwt.event.dom.client.KeyUpEvent; import com.google.gwt.event.dom.client.KeyUpHandler; import com.google.gwt.i18n.client.NumberFormat; import com.google.gwt.user.cellview.client.ColumnSortEvent; import com.google.gwt.user.cellview.client.TextColumn; import com.google.gwt.user.client.ui.*; import com.google.gwt.view.client.ListDataProvider; import com.google.gwt.view.client.ProvidesKey; import com.google.gwt.view.client.SelectionChangeEvent; import com.google.gwt.view.client.SingleSelectionModel; import org.jboss.as.console.client.Console; import org.jboss.as.console.client.shared.runtime.logviewer.actions.OpenLogFile; import org.jboss.as.console.client.widgets.ContentDescription; import org.jboss.as.console.mbui.widgets.ModelNodeCellTable; import org.jboss.ballroom.client.widgets.ContentHeaderLabel; import org.jboss.ballroom.client.widgets.tables.DefaultPager; import org.jboss.ballroom.client.widgets.tools.ToolButton; import org.jboss.ballroom.client.widgets.tools.ToolStrip; import org.jboss.dmr.client.ModelNode; import org.jboss.gwt.circuit.Dispatcher; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.List; import static com.google.gwt.dom.client.Style.Unit.PX; import static org.jboss.as.console.client.shared.runtime.logviewer.LogStore.*; /** * @author Harald Pehl */ public class LogFileTable extends Composite implements LogViewerId { private final static NumberFormat SIZE_FORMAT = NumberFormat.getFormat("#.00"); private final ModelNodeCellTable table; private final ListDataProvider<ModelNode> dataProvider; private final SingleSelectionModel<ModelNode> selectionModel; private List<ModelNode> backup; @SuppressWarnings("unchecked") public LogFileTable(final Dispatcher circuit) { VerticalPanel panel = new VerticalPanel(); panel.addStyleName("rhs-content-panel"); panel.getElement().getStyle().setMarginBottom(0, PX); // header panel.add(new ContentHeaderLabel("Log Viewer")); panel.add(new ContentDescription("Log files of selected server")); // toolbar ToolStrip tools = new ToolStrip(); HTML label = new HTML(Console.CONSTANTS.commom_label_filter() + ": "); label.getElement().setAttribute("style", "padding-top:8px;"); final TextBox filter = new TextBox(); filter.getElement().setId("TX_" + BASE_ID + "_filter"); filter.setMaxLength(30); filter.setVisibleLength(20); filter.getElement().setAttribute("style", "float:right; width:120px;"); filter.addKeyUpHandler(new KeyUpHandler() { @Override public void onKeyUp(KeyUpEvent keyUpEvent) { String prefix = filter.getText(); if (prefix != null && !prefix.equals("")) { // filter by prefix filterByPrefix(prefix); } else { clearFilter(); } } }); tools.addToolWidget(label); tools.addToolWidget(filter); final ToolButton download = new ToolButton("Download", new ClickHandler() { @Override public void onClick(ClickEvent event) { ModelNode logFile = selectionModel.getSelectedObject(); if (logFile != null) { // TODO Implement download } } }); download.setEnabled(false); download.getElement().setId("BT_" + BASE_ID + "_download"); // TODO Enable when the server side download is in place // tools.addToolButtonRight(download); final ToolButton view = new ToolButton(Console.CONSTANTS.common_label_view(), new ClickHandler() { @Override public void onClick(ClickEvent event) { ModelNode logFile = selectionModel.getSelectedObject(); if (logFile != null) { circuit.dispatch(new OpenLogFile(logFile.get(FILE_NAME).asString())); } } }); view.setEnabled(false); view.getElement().setId("BT_" + BASE_ID + "_view"); tools.addToolButtonRight(view); panel.add(tools); // table backup = new ArrayList<>(); ProvidesKey<ModelNode> providesKey = new ProvidesKey<ModelNode>() { @Override public Object getKey(ModelNode item) { return item.get(FILE_NAME); } }; selectionModel = new SingleSelectionModel<>(providesKey); selectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() { @Override public void onSelectionChange(SelectionChangeEvent event) { download.setEnabled(selectionModel.getSelectedObject() != null); view.setEnabled(selectionModel.getSelectedObject() != null); } }); table = new ModelNodeCellTable(10, providesKey); table.setSelectionModel(selectionModel); dataProvider = new ListDataProvider<>(providesKey); dataProvider.addDataDisplay(table); ColumnSortEvent.ListHandler<ModelNode> sortHandler = new ColumnSortEvent.ListHandler<ModelNode>( dataProvider.getList()); table.addColumnSortHandler(sortHandler); panel.add(table); DefaultPager pager = new DefaultPager(); pager.setDisplay(table); panel.add(pager); // column: name TextColumn<ModelNode> nameColumn = new TextColumn<ModelNode>() { @Override public String getValue(ModelNode node) { return node.get(FILE_NAME).asString(); } }; nameColumn.setSortable(true); sortHandler.setComparator(nameColumn, new NameComparator()); table.addColumn(nameColumn, "Log File Name"); // column: last modified TextColumn<ModelNode> lastModifiedColumn = new TextColumn<ModelNode>() { @Override public String getValue(ModelNode node) { return node.get(LAST_MODIFIED_DATE).asString(); } }; lastModifiedColumn.setSortable(true); sortHandler.setComparator(lastModifiedColumn, new Comparator<ModelNode>() { @Override public int compare(ModelNode node1, ModelNode node2) { return node1.get(LAST_MODIFIED_DATE).asString().compareTo(node2.get(LAST_MODIFIED_DATE).asString()); } }); table.addColumn(lastModifiedColumn, "Date - Time (UTC)"); // column: size TextColumn<ModelNode> sizeColumn = new TextColumn<ModelNode>() { @Override public String getValue(ModelNode node) { double size = node.get(LogStore.FILE_SIZE).asLong() / 1024.0; return SIZE_FORMAT.format(size); } }; sizeColumn.setSortable(true); sortHandler.setComparator(sizeColumn, new Comparator<ModelNode>() { @Override public int compare(ModelNode node1, ModelNode node2) { return node1.get(FILE_SIZE).asInt() - node2.get(FILE_SIZE).asInt(); } }); table.addColumn(sizeColumn, "Size (kb)"); ScrollPanel scroll = new ScrollPanel(panel); LayoutPanel layout = new LayoutPanel(); layout.add(scroll); layout.setWidgetTopHeight(scroll, 0, PX, 100, Style.Unit.PCT); initWidget(layout); } public void list(List<ModelNode> files) { backup = files; table.setRowCount(files.size(), true); List<ModelNode> list = dataProvider.getList(); list.clear(); // cannot call setList() as that breaks the sort handler Collections.sort(files, new NameComparator()); list.addAll(files); // Make sure the new values are properly sorted ColumnSortEvent.fire(table, table.getColumnSortList()); } public void filterByPrefix(String prefix) { final List<ModelNode> next = new ArrayList<>(); for (ModelNode file : backup) { if (file.get(FILE_NAME).asString().toLowerCase().contains(prefix.toLowerCase())) next.add(file); } List<ModelNode> propList = dataProvider.getList(); propList.clear(); // cannot call setList() as that breaks the sort handler propList.addAll(next); } public void clearFilter() { List<ModelNode> list = dataProvider.getList(); list.clear(); // cannot call setList() as that breaks the sort handler list.addAll(backup); } private static class NameComparator implements Comparator<ModelNode> { @Override public int compare(ModelNode node1, ModelNode node2) { return node1.get(FILE_NAME).asString().compareTo(node2.get(FILE_NAME).asString()); } } }