net.sourceforge.phpeclipse/src/net/sourceforge/phpdt/internal/ui/dialog/StatusUtil.java

   1 /*
   2  * (c) Copyright IBM Corp. 2000, 2001.
   3  * All Rights Reserved.
   4  */
   5 package net.sourceforge.phpdt.internal.ui.dialog;
   6
   7 import org.eclipse.core.runtime.IStatus;
   8
   9 import org.eclipse.jface.dialogs.DialogPage;
  10
  11 /**
  12  * A utility class to work with IStatus.
  13  */
  14 public class StatusUtil {
  15
  16         /**
  17          * Compares two instances of <code>IStatus</code>. The more severe is returned:
  18          * An error is more severe than a warning, and a warning is more severe
  19          * than ok. If the two stati have the same severity, the second is returned.
  20          */
  21         public static IStatus getMoreSevere(IStatus s1, IStatus s2) {
  22                 if (s1.getSeverity() > s2.getSeverity()) {
  23                         return s1;
  24                 } else {
  25                         return s2;
  26                 }
  27         }
  28
  29         /**
  30          * Finds the most severe status from a array of stati.
  31          * An error is more severe than a warning, and a warning is more severe
  32          * than ok.
  33          */
  34         public static IStatus getMostSevere(IStatus[] status) {
  35                 IStatus max= null;
  36                 for (int i= 0; i < status.length; i++) {
  37                         IStatus curr= status[i];
  38                         if (curr.matches(IStatus.ERROR)) {
  39                                 return curr;
  40                         }
  41                         if (max == null || curr.getSeverity() > max.getSeverity()) {
  42                                 max= curr;
  43                         }
  44                 }
  45                 return max;
  46         }
  47
  48         /**
  49          * Applies the status to the status line of a dialog page.
  50          */
  51         public static void applyToStatusLine(DialogPage page, IStatus status) {
  52                 String message= status.getMessage();
  53                 switch (status.getSeverity()) {
  54                         case IStatus.OK:
  55                                 page.setMessage(message, DialogPage.NONE);
  56                                 page.setErrorMessage(null);
  57                                 break;
  58                         case IStatus.WARNING:
  59                                 page.setMessage(message, DialogPage.WARNING);
  60                                 page.setErrorMessage(null);
  61                                 break;
  62                         case IStatus.INFO:
  63                                 page.setMessage(message, DialogPage.INFORMATION);
  64                                 page.setErrorMessage(null);
  65                                 break;
  66                         default:
  67                                 if (message.length() == 0) {
  68                                         message= null;
  69                                 }
  70                                 page.setMessage(null);
  71                                 page.setErrorMessage(message);
  72                                 break;
  73                 }
  74         }
  75 }