Package com.google.speedtracer.latencydashboard.client

Source Code of com.google.speedtracer.latencydashboard.client.MarkTimelineLatencyDashboard

/*
* Copyright 2010 Google 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 com.google.speedtracer.latencydashboard.client;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.logical.shared.ResizeEvent;
import com.google.gwt.event.logical.shared.ResizeHandler;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.visualization.client.VisualizationUtils;
import com.google.gwt.visualization.client.visualizations.AreaChart;
import com.google.gwt.visualization.client.visualizations.Gauge;
import com.google.gwt.visualization.client.visualizations.LineChart;
import com.google.gwt.visualization.client.visualizations.PieChart;
import com.google.speedtracer.latencydashboard.shared.CustomDashboardRecord;

import java.util.ArrayList;
import java.util.List;

/**
* Entry point classes define <code>onModuleLoad()</code>.
*/
public class MarkTimelineLatencyDashboard implements EntryPoint {
  private List<MarkTimelineChart> markTimelineCharts = new ArrayList<MarkTimelineChart>();
  private final Button refreshButton = new Button("Refresh");
  private final TimelineServiceAsync timelineService = GWT.create(TimelineService.class);

  /**
   * This is the entry point method.
   */
  public void onModuleLoad() {
    DashboardResources.init();
    WarningPane.init(DashboardResources.getResources());
    createDashboardUi();
  }

  private void createCharts() {
    createMarkTimelineCharts();
    for (MarkTimelineChart chart : markTimelineCharts) {
      RootPanel.get().add(chart);
    }
  }

  private void createDashboardUi() {
    refreshButton.getElement().getStyle().setMarginLeft(3, Unit.EM);
    refreshButton.setEnabled(false);
    refreshButton.addClickHandler(new ClickHandler() {
      public void onClick(ClickEvent event) {
        populateDashboard();
      }
    });

    VisualizationUtils.loadVisualizationApi(new Runnable() {
      /**
       * Load data from the server.
       */
      public void run() {
        refreshButton.setEnabled(true);
        createCharts();
        populateDashboard();
        RootPanel.get().add(refreshButton);
        Window.addResizeHandler(new ResizeHandler() {

          public void onResize(ResizeEvent event) {
            populateDashboard();
          }

        });
      }
    }, AreaChart.PACKAGE, LineChart.PACKAGE, PieChart.PACKAGE, Gauge.PACKAGE);
  }

  private void createMarkTimelineCharts() {
    String[] clientLoadEvents = {"initial_search_begin", "initial_search_end"};
    Gauge.Options standardOptions = Gauge.Options.create();
    standardOptions.setGaugeRange(0, 5000);
    standardOptions.setGreenRange(0, 2500);
    standardOptions.setYellowRange(2500, 4000);
    standardOptions.setRedRange(4000, 5000);

    markTimelineCharts.add(new MarkTimelineChart(
        DashboardResources.getResources(), "client_load", clientLoadEvents,
        standardOptions));
   
    markTimelineCharts.add(new MarkTimelineChart(
        DashboardResources.getResources(), "prefetch_cache_fill", null,
        standardOptions));

    String[] digestsSearchEvents = {
       "process_results_begin", "render_results_begin""update_received"};
    markTimelineCharts.add(new MarkTimelineChart(
        DashboardResources.getResources(), "digests_search",
        digestsSearchEvents, standardOptions));
   
    Gauge.Options contactsGaugeOptions = Gauge.Options.create();
    contactsGaugeOptions.setGaugeRange(0, 100);
    contactsGaugeOptions.setGreenRange(0, 10);
    contactsGaugeOptions.setYellowRange(10, 50);
    contactsGaugeOptions.setRedRange(50, 100);
    markTimelineCharts.add(new MarkTimelineChart(
        DashboardResources.getResources(), "contact-sort",
        null, contactsGaugeOptions));
  }

  private void populateDashboard() {
    timelineService.getCustomDashboardLatestRecords(15,
        new AsyncCallback<CustomDashboardRecord[]>() {

          public void onFailure(Throwable caught) {
            WarningPane.get().show(
                "Couldn't retrieve dashboard data.  Check the server and try to 'Refresh'");
          }

          public void onSuccess(CustomDashboardRecord[] result) {
            if (result.length > 0) {
              for (LatencyDashboardChart chart : markTimelineCharts) {
                chart.populateChart(result);
              }
            } else {
              WarningPane.get().show(
                  "Retrieved empty custom dashboard data. Check the server and try to 'Refresh'");
            }
          }

        });
  }
}
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