server/plugins/org.argeo.jcr.ui.explorer/src/main/java/org/argeo/jcr/ui/explorer/model/RepositoriesNode.java

   1 package org.argeo.jcr.ui.explorer.model;
   2
   3 import java.util.Map;
   4
   5 import javax.jcr.Repository;
   6 import javax.jcr.RepositoryFactory;
   7
   8 import org.argeo.eclipse.ui.TreeParent;
   9 import org.argeo.jcr.RepositoryRegister;
  10
  11 /**
  12  * UI Tree component. Implements the Argeo abstraction of a
  13  * {@link RepositoryFactory} that enable a user to "mount" various repositories
  14  * in a single Tree like View. It is usually meant to be at the root of the UI
  15  * Tree and thus {@link getParent()} method will return null.
  16  *
  17  * The {@link RepositoryFactory} is injected at instantiation time and must be
  18  * use get or register new {@link Repository} objects upon which a reference is
  19  * kept here.
  20  */
  21
  22 public class RepositoriesNode extends TreeParent {
  23         private final String name;
  24         private final RepositoryRegister repositoryRegister;
  25
  26         public RepositoriesNode(String name, RepositoryRegister repositoryRegister,
  27                         TreeParent parent) {
  28                 super(name);
  29                 this.name = name;
  30                 this.repositoryRegister = repositoryRegister;
  31         }
  32
  33         /**
  34          * Override normal behaviour to initialize the various repositories only at
  35          * request time
  36          */
  37         @Override
  38         public synchronized Object[] getChildren() {
  39                 if (isLoaded()) {
  40                         return super.getChildren();
  41                 } else {
  42                         // initialize current object
  43                         Map<String, Repository> refRepos = repositoryRegister
  44                                         .getRepositories();
  45                         for (String name : refRepos.keySet()) {
  46                                 super.addChild(new RepositoryNode(name, refRepos.get(name),
  47                                                 this));
  48                         }
  49                         return super.getChildren();
  50                 }
  51         }
  52
  53         public void registerNewRepository(String alias, Repository repository) {
  54                 // TODO: implement this
  55                 // Create a new RepositoryNode Object
  56                 // add it
  57                 // super.addChild(new RepositoriesNode(...));
  58         }
  59
  60         /** Returns the {@link RepositoryRegister} wrapped by thgis object. */
  61         public RepositoryRegister getRepositoryRegister() {
  62                 return repositoryRegister;
  63         }
  64
  65 }