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.subsys.jberet.ui; import java.util.List; import com.google.gwt.safehtml.shared.SafeHtmlUtils; import com.google.gwt.user.cellview.client.TextColumn; import com.google.gwt.user.client.ui.Grid; import com.google.gwt.user.client.ui.HTML; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.IsWidget; import com.google.gwt.user.client.ui.VerticalPanel; import com.google.gwt.user.client.ui.Widget; import com.google.gwt.view.client.ListDataProvider; import com.google.gwt.view.client.ProvidesKey; import com.google.gwt.view.client.SingleSelectionModel; import org.jboss.as.console.client.layout.SimpleLayout; import org.jboss.as.console.client.rbac.SecurityFramework; import org.jboss.as.console.client.shared.runtime.charts.Column; import org.jboss.as.console.client.shared.runtime.charts.NumberColumn; import org.jboss.as.console.client.shared.subsys.jberet.JberetMetricsPresenter; import org.jboss.as.console.client.shared.subsys.jberet.store.JberetStore; import org.jboss.as.console.client.shared.subsys.jberet.store.RefreshThreadPoolMetric; import org.jboss.as.console.client.v3.ResourceDescriptionRegistry; import org.jboss.as.console.client.v3.dmr.ResourceDescription; import org.jboss.as.console.mbui.widgets.ModelNodeFormBuilder; import org.jboss.ballroom.client.rbac.SecurityContext; import org.jboss.ballroom.client.widgets.tables.DefaultCellTable; import org.jboss.ballroom.client.widgets.tables.DefaultPager; import org.jboss.dmr.client.ModelNode; import org.jboss.dmr.client.Property; import org.jboss.gwt.circuit.Dispatcher; import static com.google.gwt.dom.client.Style.Float.RIGHT; import static com.google.gwt.dom.client.Style.Unit.PX; /** * @author Claudio Miranda */ public class ThreadPoolRuntimePanel implements IsWidget { private final static String[] METRIC_ATTRIBUTES = { "active-count", "completed-task-count", "current-thread-count", "largest-thread-count", "queue-size", "rejected-count", "task-count", }; private final Dispatcher circuit; private final ResourceDescriptionRegistry resourceDescriptionRegistry; private final SecurityFramework securityFramework; private JberetMetricsPresenter presenter; private DefaultCellTable<Property> table; private ListDataProvider<Property> dataProvider; private SingleSelectionModel<Property> selectionModel; private Column[] columns; private Grid grid; ThreadPoolRuntimePanel(final Dispatcher circuit, final ResourceDescriptionRegistry resourceDescriptionRegistry, final SecurityFramework securityFramework) { this.circuit = circuit; this.resourceDescriptionRegistry = resourceDescriptionRegistry; this.securityFramework = securityFramework; } @Override public Widget asWidget() { ProvidesKey<Property> providesKey = Property::getName; table = new DefaultCellTable<>(5, providesKey); dataProvider = new ListDataProvider<>(providesKey); dataProvider.addDataDisplay(table); selectionModel = new SingleSelectionModel<>(providesKey); selectionModel.addSelectionChangeHandler(event -> { Property selection = selectionModel.getSelectedObject(); if (selection != null) { ModelNode metric = selection.getValue(); refresh(metric); } }); table.setSelectionModel(selectionModel); TextColumn<Property> nameColumn = new TextColumn<Property>() { @Override public String getValue(Property node) { return node.getName(); } }; table.addColumn(nameColumn, "Name"); DefaultPager pager = new DefaultPager(); pager.setDisplay(table); VerticalPanel tableAndPager = new VerticalPanel(); tableAndPager.setStyleName("fill-layout-width"); tableAndPager.add(table); tableAndPager.add(pager); SecurityContext securityContext = securityFramework.getSecurityContext(presenter.getProxy().getNameToken()); ResourceDescription rootDescription = resourceDescriptionRegistry.lookup(JberetStore.METRICS_ROOT_ADDRESS); ResourceDescription threadPoolsDescription = rootDescription.getChildDescription("thread-pool"); ModelNodeFormBuilder.FormAssets formAssets = new ModelNodeFormBuilder() .setResourceDescription(threadPoolsDescription).setSecurityContext(securityContext) .include(METRIC_ATTRIBUTES).build(); Widget help = formAssets.getHelp().asWidget(); help.getElement().getStyle().setMarginTop(40, PX); HTML refreshBtn = new HTML("<i class='icon-refresh'></i> Refresh Results"); refreshBtn.setStyleName("html-link"); refreshBtn.getElement().getStyle().setPaddingRight(10, PX); refreshBtn.getElement().getStyle().setFloat(RIGHT); refreshBtn.addClickHandler(event -> { Property selection = selectionModel.getSelectedObject(); if (selection != null) { circuit.dispatch(new RefreshThreadPoolMetric(selection.getName())); } }); HorizontalPanel header = new HorizontalPanel(); header.addStyleName("fill-layout-width"); header.add(new HTML("<h3 class='metric-label-embedded'>Thread Pool</h3>")); header.add(refreshBtn); columns = new Column[] { new NumberColumn("active-count", "Active Count"), new NumberColumn("completed-task-count", "Completed Task Count"), new NumberColumn("current-thread-count", "Current Thread Count"), new NumberColumn("largest-thread-count", "Largest Thread Count"), new NumberColumn("queue-size", "Queue Size"), new NumberColumn("rejected-count", "Rejected Count"), new NumberColumn("task-count", "Task Count") }; grid = new Grid(columns.length, 2); grid.addStyleName("metric-grid"); for (int row = 0; row < columns.length; ++row) { grid.getCellFormatter().addStyleName(row, 0, "nominal"); grid.getCellFormatter().addStyleName(row, 1, "numerical"); } VerticalPanel metricsPanel = new VerticalPanel(); metricsPanel.addStyleName("metric-container"); metricsPanel.add(header); metricsPanel.add(grid); SimpleLayout layout = new SimpleLayout().setPlain(true).setHeadline("Thread Pools") .setDescription(SafeHtmlUtils.fromString(threadPoolsDescription.get("description").asString())) .addContent("", tableAndPager).addContent("", help).addContent("", metricsPanel); return layout.build().asWidget(); } public void refresh(ModelNode metric) { if (metric != null) { List<Property> attributes = metric.asPropertyList(); for (int i = 0; i < columns.length; i++) { for (Property attribute : attributes) { if (attribute.getName().equals(columns[i].getDeytpedName())) { grid.setText(i, 0, columns[i].getLabel()); grid.setText(i, 1, attribute.getValue().asString()); } } } } } public void refresh(final List<Property> metrics) { selectionModel.clear(); dataProvider.setList(metrics); table.selectDefaultEntity(); } public void setPresenter(final JberetMetricsPresenter presenter) { this.presenter = presenter; } }