Java tutorial
/** * Copyright (C) 2014 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.dashbuilder.client.metrics.widgets.vertical; import com.github.gwtbootstrap.client.ui.Tooltip; import com.github.gwtbootstrap.client.ui.constants.Placement; import com.google.gwt.core.client.GWT; 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.uibinder.client.UiBinder; import com.google.gwt.uibinder.client.UiField; import com.google.gwt.user.client.ui.*; import org.dashbuilder.backend.ClusterMetricsDataSetGenerator; import org.dashbuilder.client.metrics.RealTimeMetricsDashboard; import org.dashbuilder.displayer.DisplayerSettingsFactory; import org.dashbuilder.displayer.client.Displayer; import org.dashbuilder.displayer.client.DisplayerCoordinator; import org.dashbuilder.displayer.client.DisplayerHelper; import static org.dashbuilder.dataset.filter.FilterFactory.equalsTo; import static org.dashbuilder.dataset.filter.FilterFactory.timeFrame; import static org.dashbuilder.dataset.group.AggregateFunctionType.MAX; import static org.dashbuilder.dataset.group.DateIntervalType.*; import static org.dashbuilder.backend.ClusterMetricsDataSetGenerator.*; import static org.dashbuilder.client.metrics.RealTimeMetricsDashboard.*; public class VerticalServerMetrics extends Composite { interface VerticalServerMetricsBinder extends UiBinder<Widget, VerticalServerMetrics> { } private static final VerticalServerMetricsBinder uiBinder = GWT.create(VerticalServerMetricsBinder.class); private static final String TOOLTIP_CPU = "CPU usage (%)"; private static final String TOOLTIP_USED_MEMORY = "Used memory (Gb)"; private static final String TOOLTIP_NET_BW = "Network BW (kbps)"; private static final String TOOLTIP_PROCESSES = "Running/Sleeping processes"; private static final String TOOLTIP_DISK = "Disk usage (Mb)"; @UiField Panel mainPanel; @UiField FocusPanel serverIcon; @UiField HTML serverName; @UiField Tooltip tooltip; DisplayerCoordinator displayerCoordinator = new DisplayerCoordinator(); private int refreshInterval; private String server; private boolean isOff = false; public String getTitle() { return "Server metrics (Vertical)"; } public VerticalServerMetrics(final RealTimeMetricsDashboard metricsDashboard, final String server) { this(metricsDashboard, server, 2); } public VerticalServerMetrics(final RealTimeMetricsDashboard metricsDashboard, final String server, int refreshInterval) { this.server = server; this.refreshInterval = refreshInterval; // Init the dashboard from the UI Binder template initWidget(uiBinder.createAndBindUi(this)); // The server name. serverName.setText(server); toolTipDefaultText(); Displayer serverCPU = DisplayerHelper.lookupDisplayer(DisplayerSettingsFactory.newLineChartSettings() .dataset(METRICS_DATASET_UUID).filter(COLUMN_SERVER, equalsTo(server)) .filter(COLUMN_TIMESTAMP, timeFrame("begin[minute] till now")).group(COLUMN_TIMESTAMP) .fixed(SECOND, true).column(COLUMN_TIMESTAMP).column(COLUMN_CPU0, MAX, "CPU0") .column(COLUMN_CPU1, MAX, "CPU1").title("CPU usage").titleVisible(false) .backgroundColor(BACKGROUND_COLOR).width(165).height(80).margins(5, 5, 30, 5).legendOff() .buildSettings()); // Used memory Displayer serverMemory = DisplayerHelper.lookupDisplayer(DisplayerSettingsFactory.newAreaChartSettings() .dataset(METRICS_DATASET_UUID).filter(COLUMN_SERVER, equalsTo(server)) .filter(COLUMN_TIMESTAMP, timeFrame("begin[minute] till now")).group(COLUMN_TIMESTAMP) .fixed(SECOND, true).column(COLUMN_TIMESTAMP).column(COLUMN_MEMORY_USED, MAX, "Used memory") .title("Memory consumption").titleVisible(false).backgroundColor(BACKGROUND_COLOR).width(165) .height(80).margins(5, 5, 30, 5).legendOff().buildSettings()); // TX/RX Displayer serverNetwork = DisplayerHelper .lookupDisplayer(DisplayerSettingsFactory.newBarChartSettings().dataset(METRICS_DATASET_UUID) .filter(COLUMN_SERVER, equalsTo(server)).filter(COLUMN_TIMESTAMP, timeFrame("-10second")) .group(COLUMN_TIMESTAMP).dynamic(10, SECOND, true).column(COLUMN_TIMESTAMP) .column(COLUMN_NETWORK_RX, MAX, "Downstream").column(COLUMN_NETWORK_TX, MAX, "Upstream") .title("Network bandwidth").titleVisible(false).backgroundColor(BACKGROUND_COLOR) .legendOff().width(165).height(80).margins(5, 5, 30, 5).vertical().buildSettings()); // Processes Displayer serverProcessesRunning = DisplayerHelper.lookupDisplayer(DisplayerSettingsFactory .newBarChartSettings().dataset(METRICS_DATASET_UUID).filter(COLUMN_SERVER, equalsTo(server)) .filter(COLUMN_TIMESTAMP, timeFrame("-2second")).group(COLUMN_TIMESTAMP).dynamic(1, SECOND, true) .column(COLUMN_TIMESTAMP).column(COLUMN_PROCESSES_RUNNING, MAX, "Running processes") .column(COLUMN_PROCESSES_SLEEPING, MAX, "Slepping processes").title("Running/Sleepping processes") .titleVisible(false).backgroundColor(BACKGROUND_COLOR).legendOff().width(165).height(80) .margins(5, 5, 30, 5).buildSettings()); // Disk Displayer serverDisk = DisplayerHelper .lookupDisplayer(DisplayerSettingsFactory.newTableSettings().dataset(METRICS_DATASET_UUID) .filter(COLUMN_SERVER, equalsTo(server)).filter(COLUMN_TIMESTAMP, timeFrame("-2second")) .column(COLUMN_DISK_FREE, "Free disk (Mb)").column(COLUMN_DISK_USED, "Used disk (Mb)") .rowNumber(1).title("Disk usage").titleVisible(false).tableWidth(180).buildSettings()); addDisplayer(serverCPU, TOOLTIP_CPU); addDisplayer(serverMemory, TOOLTIP_USED_MEMORY); addDisplayer(serverNetwork, TOOLTIP_NET_BW); addDisplayer(serverProcessesRunning, TOOLTIP_PROCESSES); addDisplayer(serverDisk, TOOLTIP_DISK); // Add the click handler for server details action. serverIcon.addClickHandler(new ClickHandler() { @Override public void onClick(ClickEvent clickEvent) { metricsDashboard.showServerDetails(server); } }); setPointerCursor(serverIcon); // Draw the charts and enable automatic refresh. displayerCoordinator.drawAll(); } private void addDisplayer(Displayer displayer, String toolTipText) { displayerCoordinator.addDisplayer(displayer); FlowPanel panel = new FlowPanel(); Tooltip tooltip = new Tooltip(toolTipText); tooltip.setPlacement(Placement.TOP); tooltip.add(displayer); panel.add(tooltip); panel.getElement().getStyle().setPadding(10, Style.Unit.PX); mainPanel.add(panel); } private void setPointerCursor(UIObject object) { object.getElement().getStyle().setCursor(Style.Cursor.POINTER); } /** * Disable this server metrics (server probably down) */ public VerticalServerMetrics off() { serverIcon.getElement().getStyle().setOpacity(0.3); mainPanel.getElement().getStyle().setOpacity(0.3); tooltip.setText(server + " is down"); isOff = true; return this; } /** * Enable this server metrics (server already up) */ public VerticalServerMetrics on() { serverIcon.getElement().getStyle().setOpacity(1); mainPanel.getElement().getStyle().setOpacity(1); toolTipDefaultText(); isOff = false; return this; } /** * redraw */ public VerticalServerMetrics redraw() { displayerCoordinator.redrawAll(); return this; } public VerticalServerMetrics dispose() { this.displayerCoordinator.closeAll(); return this; } private void toolTipDefaultText() { tooltip.setText("Click to get more details"); } public String getServer() { return server; } public boolean isOn() { return !isOff; } public boolean isOff() { return isOff; } }