Refactor JCR low-level components and icons

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

diff --git a/org.argeo.cms.ui/src/org/argeo/cms/ui/jcr/JcrBrowserUtils.java b/org.argeo.cms.ui/src/org/argeo/cms/ui/jcr/JcrBrowserUtils.java
new file mode 100644 (file)
index 0000000..b19646d
--- /dev/null
+++ b/org.argeo.cms.ui/src/org/argeo/cms/ui/jcr/JcrBrowserUtils.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.argeo.cms.ui.jcr;
+
+import javax.jcr.Node;
+import javax.jcr.Property;
+import javax.jcr.PropertyType;
+import javax.jcr.RepositoryException;
+
+import org.argeo.cms.ui.jcr.model.RepositoriesElem;
+import org.argeo.cms.ui.jcr.model.RepositoryElem;
+import org.argeo.cms.ui.jcr.model.SingleJcrNodeElem;
+import org.argeo.cms.ui.jcr.model.WorkspaceElem;
+import org.argeo.eclipse.ui.EclipseUiException;
+import org.argeo.eclipse.ui.TreeParent;
+
+/** Useful methods to manage the JCR Browser */
+public class JcrBrowserUtils {
+
+       public static String getPropertyTypeAsString(Property prop) {
+               try {
+                       return PropertyType.nameFromValue(prop.getType());
+               } catch (RepositoryException e) {
+                       throw new EclipseUiException("Cannot check type for " + prop, e);
+               }
+       }
+
+       /** Insure that the UI component is not stale, refresh if needed */
+       public static void forceRefreshIfNeeded(TreeParent element) {
+               Node curNode = null;
+
+               boolean doRefresh = false;
+
+               try {
+                       if (element instanceof SingleJcrNodeElem) {
+                               curNode = ((SingleJcrNodeElem) element).getNode();
+                       } else if (element instanceof WorkspaceElem) {
+                               curNode = ((WorkspaceElem) element).getRootNode();
+                       }
+
+                       if (curNode != null && element.getChildren().length != curNode.getNodes().getSize())
+                               doRefresh = true;
+                       else if (element instanceof RepositoryElem) {
+                               RepositoryElem rn = (RepositoryElem) element;
+                               if (rn.isConnected()) {
+                                       String[] wkpNames = rn.getAccessibleWorkspaceNames();
+                                       if (element.getChildren().length != wkpNames.length)
+                                               doRefresh = true;
+                               }
+                       } else if (element instanceof RepositoriesElem) {
+                               doRefresh = true;
+                               // Always force refresh for RepositoriesElem : the condition
+                               // below does not take remote repository into account and it is
+                               // not trivial to do so.
+
+                               // RepositoriesElem rn = (RepositoriesElem) element;
+                               // if (element.getChildren().length !=
+                               // rn.getRepositoryRegister()
+                               // .getRepositories().size())
+                               // doRefresh = true;
+                       }
+                       if (doRefresh) {
+                               element.clearChildren();
+                               element.getChildren();
+                       }
+               } catch (RepositoryException re) {
+                       throw new EclipseUiException("Unexpected error while synchronising the UI with the JCR repository", re);
+               }
+       }
+}