X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=org.argeo.cms.ui.workbench%2Fsrc%2Forg%2Fargeo%2Feclipse%2Fui%2Fworkbench%2Finternal%2Fjcr%2FJcrBrowserUtils.java;fp=org.argeo.cms.ui.workbench%2Fsrc%2Forg%2Fargeo%2Feclipse%2Fui%2Fworkbench%2Finternal%2Fjcr%2FJcrBrowserUtils.java;h=9e3e31878896a4b0650b89af21a59f7911bb1ffe;hb=4338fa5772c552075801aa689e5c2488b85d6756;hp=0000000000000000000000000000000000000000;hpb=277bb126a4b8523b93c2cd9abd345833a8387eba;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.cms.ui.workbench/src/org/argeo/eclipse/ui/workbench/internal/jcr/JcrBrowserUtils.java b/org.argeo.cms.ui.workbench/src/org/argeo/eclipse/ui/workbench/internal/jcr/JcrBrowserUtils.java
new file mode 100644
index 000000000..9e3e31878
--- /dev/null
+++ b/org.argeo.cms.ui.workbench/src/org/argeo/eclipse/ui/workbench/internal/jcr/JcrBrowserUtils.java
@@ -0,0 +1,77 @@
+/*
+ * 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.eclipse.ui.workbench.internal.jcr;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+
+import org.argeo.eclipse.ui.EclipseUiException;
+import org.argeo.eclipse.ui.TreeParent;
+import org.argeo.eclipse.ui.workbench.internal.jcr.model.RepositoriesElem;
+import org.argeo.eclipse.ui.workbench.internal.jcr.model.RepositoryElem;
+import org.argeo.eclipse.ui.workbench.internal.jcr.model.SingleJcrNodeElem;
+import org.argeo.eclipse.ui.workbench.internal.jcr.model.WorkspaceElem;
+
+/** Centralizes useful methods to manage the JCR Browser */
+public class JcrBrowserUtils {
+
+	/** 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);
+		}
+	}
+}
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