runtime/org.argeo.slc.repo/src/main/java/org/argeo/slc/repo/NodeIndexerVisitor.java

   1 package org.argeo.slc.repo;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5
   6 import javax.jcr.ItemVisitor;
   7 import javax.jcr.Node;
   8 import javax.jcr.NodeIterator;
   9 import javax.jcr.Property;
  10 import javax.jcr.RepositoryException;
  11
  12 /**
  13  * Recursively visit a sub tree and apply the list of node indexer on supported
  14  * nodes.
  15  */
  16 public class NodeIndexerVisitor implements ItemVisitor {
  17         /** order may be important */
  18         private List<NodeIndexer> nodeIndexers = new ArrayList<NodeIndexer>();
  19
  20         public NodeIndexerVisitor() {
  21         }
  22
  23         /** Convenience constructor */
  24         public NodeIndexerVisitor(NodeIndexer nodeIndexer) {
  25                 nodeIndexers.add(nodeIndexer);
  26         }
  27
  28         public NodeIndexerVisitor(List<NodeIndexer> nodeIndexers) {
  29                 this.nodeIndexers = nodeIndexers;
  30         }
  31
  32         public void visit(Node node) throws RepositoryException {
  33                 for (NodeIndexer nodeIndexer : nodeIndexers)
  34                         if (nodeIndexer.support(node.getPath()))
  35                                 nodeIndexer.index(node);
  36
  37                 for (NodeIterator it = node.getNodes(); it.hasNext();)
  38                         visit(it.nextNode());
  39         }
  40
  41         public void visit(Property property) throws RepositoryException {
  42         }
  43
  44         public void setNodeIndexers(List<NodeIndexer> nodeIndexers) {
  45                 this.nodeIndexers = nodeIndexers;
  46         }
  47
  48 }