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