From 38fae6d9c40314f410f338c8f759aa627927c916 Mon Sep 17 00:00:00 2001
From: Antoine DE TROOSTEMBERGH
Date: Thu, 19 Jan 2012 17:21:10 +0100
Subject: 366652 Fixed Update Maven Project dialog failure in some cases

Update Maven Project dialog failed to show up for projects not
stored on standard filesystems. One particular example is IBM
Jazz, but the same problem is likely with other team providers.

The solution is to use eclipse filesystem api to get project
location.

Signed-off-by: Igor Fedorenko <igor@ifedorenko.com>
---
 .../dialogs/UpdateMavenProjectsDialog.java         | 29 +++++++++++++++++-----
 1 file changed, 23 insertions(+), 6 deletions(-)

diff --git a/org.eclipse.m2e.core.ui/src/org/eclipse/m2e/core/ui/internal/dialogs/UpdateMavenProjectsDialog.java b/org.eclipse.m2e.core.ui/src/org/eclipse/m2e/core/ui/internal/dialogs/UpdateMavenProjectsDialog.java
index 89906c69..8281e5cd 100644
--- a/org.eclipse.m2e.core.ui/src/org/eclipse/m2e/core/ui/internal/dialogs/UpdateMavenProjectsDialog.java
+++ b/org.eclipse.m2e.core.ui/src/org/eclipse/m2e/core/ui/internal/dialogs/UpdateMavenProjectsDialog.java
@@ -22,6 +22,8 @@ import java.util.List;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import org.eclipse.core.filesystem.EFS;
+import org.eclipse.core.filesystem.IFileStore;
 import org.eclipse.core.resources.IContainer;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.core.resources.IWorkspaceRoot;
@@ -117,6 +119,22 @@ public class UpdateMavenProjectsDialog extends TitleAreaDialog implements IMenuL
     shell.setText(getDialogTitle());
   }
 
+  private String getElePath(Object element) {
+    if(element instanceof IProject) {
+      IProject project = (IProject) element;
+      URI locationURI = project.getLocationURI();
+
+      try {
+        IFileStore store = EFS.getStore(locationURI);
+        File file = store.toLocalFile(0, null);
+        return file.toString() + SEPARATOR;
+      } catch(CoreException ex) {
+        log.error(ex.getMessage(), ex);
+      }
+    }
+    return null;
+  }
+
   /**
    * Create contents of the dialog.
    * 
@@ -155,7 +173,7 @@ public class UpdateMavenProjectsDialog extends TitleAreaDialog implements IMenuL
 
       public Object[] getChildren(Object parentElement) {
         if(parentElement instanceof IProject) {
-          String elePath = new File(((IProject) parentElement).getLocationURI()).toString() + SEPARATOR;
+          String elePath = getElePath(parentElement);
           String prevPath = null;
           List<IProject> children = new ArrayList<IProject>();
           for(String path : projectPaths) {
@@ -174,7 +192,7 @@ public class UpdateMavenProjectsDialog extends TitleAreaDialog implements IMenuL
       }
 
       public Object getParent(Object element) {
-        String elePath = new File(((IProject) element).getLocationURI()).toString() + SEPARATOR;
+        String elePath = getElePath(element);
         String prevPath = null;
         for(String path : projectPaths) {
           if(elePath.length() != path.length() && elePath.startsWith(path)
@@ -187,7 +205,7 @@ public class UpdateMavenProjectsDialog extends TitleAreaDialog implements IMenuL
 
       public boolean hasChildren(Object element) {
         if(element instanceof IProject) {
-          String elePath = new File(((IProject) element).getLocationURI()).toString() + SEPARATOR;
+          String elePath = getElePath(element);
           for(String path : projectPaths) {
             if(elePath.length() != path.length() && path.startsWith(elePath)) {
               return true;
@@ -356,9 +374,8 @@ public class UpdateMavenProjectsDialog extends TitleAreaDialog implements IMenuL
     for(IProject project : ResourcesPlugin.getWorkspace().getRoot().getProjects()) {
       try {
         if(project.isAccessible() && project.hasNature(IMavenConstants.NATURE_ID)) {
-          URI locationURI = project.getLocationURI();
-          if(locationURI != null) {
-            projectPaths.add(new File(locationURI).toString() + SEPARATOR);
+          if(project.getLocationURI() != null) {
+            projectPaths.add(getElePath(project));
           }
         }
       } catch(CoreException ex) {
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