+ refactoring of the JCR UI Model (in a MVC point of view)

[lgpl/argeo-commons.git] / server / runtime / org.argeo.server.jcr / src / main / java / org / argeo / jcr / JcrUtils.java

diff --git a/server/runtime/org.argeo.server.jcr/src/main/java/org/argeo/jcr/JcrUtils.java b/server/runtime/org.argeo.server.jcr/src/main/java/org/argeo/jcr/JcrUtils.java
index f62196cafe3663de56e1e2ce544832c02ad40fce..350ed4543f6df8b8a7917ab394f2ca060c532556 100644 (file)
--- a/server/runtime/org.argeo.server.jcr/src/main/java/org/argeo/jcr/JcrUtils.java
+++ b/server/runtime/org.argeo.server.jcr/src/main/java/org/argeo/jcr/JcrUtils.java
@@ -968,4 +968,37 @@ public class JcrUtils implements ArgeoJcrConstants {
                }
                return sbuf.toString();
        }
+
+       /**
+        * Estimate the sub tree size from current node. Computation is based on the
+        * Jcr {@link Property.getLength()} method. Note : it is not the exact size
+        * used on the disk by the current part of the JCR Tree.
+        */
+
+       public static long getNodeApproxSize(Node node) {
+               long curNodeSize = 0;
+               try {
+                       PropertyIterator pi = node.getProperties();
+                       while (pi.hasNext()) {
+                               Property prop = pi.nextProperty();
+                               if (prop.isMultiple()) {
+                                       int nb = prop.getLengths().length;
+                                       for (int i = 0; i < nb; i++) {
+                                               curNodeSize += (prop.getLengths()[i] > 0 ? prop
+                                                               .getLengths()[i] : 0);
+                                       }
+                               } else
+                                       curNodeSize += (prop.getLength() > 0 ? prop.getLength() : 0);
+                       }
+
+                       NodeIterator ni = node.getNodes();
+                       while (ni.hasNext())
+                               curNodeSize += getNodeApproxSize(ni.nextNode());
+                       return curNodeSize;
+               } catch (RepositoryException re) {
+                       throw new ArgeoException(
+                                       "Unexpected error while recursively determining node size.",
+                                       re);
+               }
+       }
 }