Remove UI dependencies to JCR.

[lgpl/argeo-commons.git] / jcr / org.argeo.cms.jcr.ui / src / org / argeo / cms / ui / jcr / VersionLabelProvider.java

diff --git a/jcr/org.argeo.cms.jcr.ui/src/org/argeo/cms/ui/jcr/VersionLabelProvider.java b/jcr/org.argeo.cms.jcr.ui/src/org/argeo/cms/ui/jcr/VersionLabelProvider.java
new file mode 100644 (file)
index 0000000..37dfe2b
--- /dev/null
+++ b/jcr/org.argeo.cms.jcr.ui/src/org/argeo/cms/ui/jcr/VersionLabelProvider.java
@@ -0,0 +1,33 @@
+package org.argeo.cms.ui.jcr;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+import javax.jcr.version.Version;
+
+import org.argeo.eclipse.ui.EclipseUiException;
+import org.eclipse.jface.viewers.ColumnLabelProvider;
+
+/**
+ * Simple wrapping of the ColumnLabelProvider class to provide text display in
+ * order to build a tree for version. The getText() method does not assume that
+ * {@link Version} extends {@link Node} class to respect JCR 2.0 specification
+ * 
+ */
+public class VersionLabelProvider extends ColumnLabelProvider {
+       private static final long serialVersionUID = 5270739851193688238L;
+
+       public String getText(Object element) {
+               try {
+                       if (element instanceof Version) {
+                               Version version = (Version) element;
+                               return version.getName();
+                       } else if (element instanceof Node) {
+                               return ((Node) element).getName();
+                       }
+               } catch (RepositoryException re) {
+                       throw new EclipseUiException(
+                                       "Unexpected error while getting element name", re);
+               }
+               return super.getText(element);
+       }
+}