code.grnet.gr Git - pithos-web-client/blob - src/gr/grnet/pithos/web/client/StatusPanel.java

   1 /*
   2  * Copyright (c) 2011 Greek Research and Technology Network
   3  */
   4 package gr.grnet.pithos.web.client;
   5
   6 import com.google.gwt.core.client.Scheduler;
   7 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
   8 import gr.grnet.pithos.web.client.foldertree.AccountResource;
   9 import gr.grnet.pithos.web.client.rest.GetCommand;
  10 import gr.grnet.pithos.web.client.rest.GetRequest;
  11 import gr.grnet.pithos.web.client.rest.RestException;
  12 import gr.grnet.pithos.web.client.rest.resource.QuotaHolder;
  13 import gr.grnet.pithos.web.client.rest.resource.UserResource;
  14
  15 import com.google.gwt.core.client.GWT;
  16 import com.google.gwt.i18n.client.DateTimeFormat;
  17 import com.google.gwt.resources.client.ClientBundle;
  18 import com.google.gwt.resources.client.ImageResource;
  19 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  20 import com.google.gwt.user.client.ui.Composite;
  21 import com.google.gwt.user.client.ui.HTML;
  22 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  23 import com.google.gwt.user.client.ui.HorizontalPanel;
  24
  25 /**
  26  * The panel that displays a status bar with quota information.
  27  */
  28 public class StatusPanel extends Composite {
  29         public static final boolean DONE = false;
  30         private HTML fileCountLabel = new HTML("");
  31         private HTML fileSizeLabel = new HTML("");
  32         private HTML quotaIcon = new HTML("");
  33         private HTML quotaLabel = new HTML("");
  34         private HTML lastLoginLabel = new HTML("");
  35         private HTML currentLoginLabel = new HTML("");
  36         private HTML currentlyShowingLabel = new HTML("");
  37
  38         /**
  39          * An image bundle for this widget's images.
  40          */
  41         public interface Images extends ClientBundle {
  42
  43                 @Source("gr/grnet/pithos/resources/windowlist.png")
  44                 ImageResource totalFiles();
  45
  46                 @Source("gr/grnet/pithos/resources/database.png")
  47                 ImageResource totalSize();
  48
  49                 @Source("gr/grnet/pithos/resources/redled.png")
  50                 ImageResource redSize();
  51
  52                 @Source("gr/grnet/pithos/resources/greenled.png")
  53                 ImageResource greenSize();
  54
  55                 @Source("gr/grnet/pithos/resources/yellowled.png")
  56                 ImageResource yellowSize();
  57
  58                 @Source("gr/grnet/pithos/resources/xclock.png")
  59                 ImageResource lastLogin();
  60         }
  61
  62         private final Images images;
  63
  64         /**
  65          * The constructor of the status panel.
  66          *
  67          * @param theImages the supplied images
  68          */
  69         public StatusPanel(Images theImages) {
  70                 images = theImages;
  71                 HorizontalPanel outer = new HorizontalPanel();
  72                 outer.setWidth("100%");
  73                 outer.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_LEFT);
  74
  75                 HorizontalPanel left = new HorizontalPanel();
  76                 left.setSpacing(8);
  77                 HorizontalPanel middle = new HorizontalPanel();
  78                 middle.setSpacing(8);
  79                 HorizontalPanel right = new HorizontalPanel();
  80                 right.setSpacing(8);
  81                 outer.add(left);
  82                 outer.add(middle);
  83                 outer.add(right);
  84                 left.add(new HTML("<b>Totals:</b> "));
  85                 left.add(AbstractImagePrototype.create(images.totalFiles()).createImage());
  86                 left.add(fileCountLabel);
  87                 left.add(AbstractImagePrototype.create(images.totalSize()).createImage());
  88                 left.add(fileSizeLabel);
  89                 quotaIcon.setHTML(AbstractImagePrototype.create(images.greenSize()).getHTML());
  90                 left.add(quotaIcon);
  91                 left.add(quotaLabel);
  92                 middle.add(AbstractImagePrototype.create(images.lastLogin()).createImage());
  93                 middle.add(new HTML("<b>Last login:</b> "));
  94                 middle.add(lastLoginLabel);
  95                 middle.add(new HTML("<b>\u0387 Current session login:</b> "));
  96                 middle.add(currentLoginLabel);
  97                 right.add(currentlyShowingLabel);
  98                 outer.setStyleName("statusbar-inner");
  99                 left.setStyleName("statusbar-inner");
 100                 middle.setStyleName("statusbar-inner");
 101                 right.setStyleName("statusbar-inner");
 102                 outer.setCellHorizontalAlignment(right, HasHorizontalAlignment.ALIGN_RIGHT);
 103
 104                 initWidget(outer);
 105
 106         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 107             @Override
 108             public void execute() {
 109                 AccountResource account = GSS.get().getAccount();
 110                 displayStats(account);
 111             }
 112         });
 113         }
 114
 115         /**
 116          * Refresh the widget with the provided statistics.
 117          */
 118         private void displayStats(AccountResource account) {
 119                 if (account.getNumberOfObjects() == 1)
 120                         fileCountLabel.setHTML("1 object");
 121                 else
 122                         fileCountLabel.setHTML(account.getNumberOfObjects() + " objects");
 123                 fileSizeLabel.setHTML(account.getFileSizeAsString() + " used");
 124                 long pc = (long) ((double) account.getBytesRemaining()/(account.getBytesRemaining() + account.getBytesUsed()) + 0.5);
 125                 if (pc < 10) {
 126                         quotaIcon.setHTML(AbstractImagePrototype.create(images.redSize()).getHTML());
 127                         quotaLabel.setHTML(account.getQuotaLeftAsString() + " free");
 128                 } else if(pc<20) {
 129                         quotaIcon.setHTML(AbstractImagePrototype.create(images.yellowSize()).getHTML());
 130                         quotaLabel.setHTML(account.getQuotaLeftAsString() +" free");
 131                 } else {
 132                         quotaIcon.setHTML(AbstractImagePrototype.create(images.greenSize()).getHTML());
 133                         quotaLabel.setHTML(account.getQuotaLeftAsString() +" free");
 134                 }
 135                 final DateTimeFormat formatter = DateTimeFormat.getFormat("d/M/yyyy h:mm a");
 136                 lastLoginLabel.setHTML(formatter.format(account.getLastLogin()));
 137                 currentLoginLabel.setHTML(formatter.format(account.getCurrentLogin()));
 138         }
 139
 140         /**
 141          * Requests updated quota information from the server and refreshes
 142          * the display.
 143          */
 144         public void updateStats() {
 145                 final GSS app = GSS.get();
 146         String path = app.getApiPath() + app.getUsername();
 147         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, path) {
 148             @Override
 149             public void onSuccess(AccountResource result) {
 150                 displayStats(result);
 151             }
 152
 153             @Override
 154             public void onError(Throwable t) {
 155                 if(t instanceof RestException)
 156                     app.displayError("Unable to fetch quota:" +
 157                                 ((RestException)t).getHttpStatusText());
 158                 else
 159                     app.displayError("System error fetching quota:" +
 160                                 t.getMessage());
 161                 GWT.log("ERR", t);
 162             }
 163         };
 164
 165         Scheduler.get().scheduleDeferred(getAccount);
 166         }
 167
 168         /**
 169          * Displays the statistics for the current folder.
 170          *
 171          * @param text the statistics to display
 172          */
 173         public void updateCurrentlyShowing(String text) {
 174                 if (text == null)
 175                         currentlyShowingLabel.setText("");
 176                 else
 177                         currentlyShowingLabel.setHTML(" <b>Showing:</b> " + text);
 178         }
 179
 180 }