New project conventions (builds)

[lgpl/argeo-commons.git] / org.argeo.jcr.ui.explorer / src / org / argeo / jcr / ui / explorer / model / RepositoriesElem.java

diff --git a/org.argeo.jcr.ui.explorer/src/org/argeo/jcr/ui/explorer/model/RepositoriesElem.java b/org.argeo.jcr.ui.explorer/src/org/argeo/jcr/ui/explorer/model/RepositoriesElem.java
new file mode 100644 (file)
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--- /dev/null
+++ b/org.argeo.jcr.ui.explorer/src/org/argeo/jcr/ui/explorer/model/RepositoriesElem.java
@@ -0,0 +1,134 @@
+/*
+ * 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.jcr.ui.explorer.model;
+
+import java.util.Map;
+
+import javax.jcr.Node;
+import javax.jcr.NodeIterator;
+import javax.jcr.Repository;
+import javax.jcr.RepositoryException;
+import javax.jcr.RepositoryFactory;
+import javax.jcr.Session;
+
+import org.argeo.ArgeoException;
+import org.argeo.eclipse.ui.ErrorFeedback;
+import org.argeo.eclipse.ui.TreeParent;
+import org.argeo.jcr.ArgeoNames;
+import org.argeo.jcr.MaintainedRepository;
+import org.argeo.jcr.RepositoryRegister;
+import org.argeo.jcr.UserJcrUtils;
+import org.argeo.util.security.Keyring;
+
+/**
+ * UI Tree component. Implements the Argeo abstraction of a
+ * {@link RepositoryFactory} that enable a user to "mount" various repositories
+ * in a single Tree like View. It is usually meant to be at the root of the UI
+ * Tree and thus {@link getParent()} method will return null.
+ * 
+ * The {@link RepositoryFactory} is injected at instantiation time and must be
+ * use get or register new {@link Repository} objects upon which a reference is
+ * kept here.
+ */
+
+public class RepositoriesElem extends TreeParent implements ArgeoNames {
+       private final RepositoryRegister repositoryRegister;
+       private final RepositoryFactory repositoryFactory;
+
+       /**
+        * A session of the logged in user on the default workspace of the node
+        * repository.
+        */
+       private final Session userSession;
+       private final Keyring keyring;
+
+       public RepositoriesElem(String name, RepositoryRegister repositoryRegister,
+                       RepositoryFactory repositoryFactory, TreeParent parent,
+                       Session userSession, Keyring keyring) {
+               super(name);
+               this.repositoryRegister = repositoryRegister;
+               this.repositoryFactory = repositoryFactory;
+               this.userSession = userSession;
+               this.keyring = keyring;
+       }
+
+       /**
+        * Override normal behavior to initialize the various repositories only at
+        * request time
+        */
+       @Override
+       public synchronized Object[] getChildren() {
+               if (isLoaded()) {
+                       return super.getChildren();
+               } else {
+                       // initialize current object
+                       Map<String, Repository> refRepos = repositoryRegister
+                                       .getRepositories();
+                       for (String name : refRepos.keySet()) {
+                               Repository repository = refRepos.get(name);
+                               if (repository instanceof MaintainedRepository)
+                                       super.addChild(new MaintainedRepositoryElem(name,
+                                                       repository, this));
+                               else
+                                       super.addChild(new RepositoryElem(name, repository, this));
+                       }
+
+                       // remote
+                       if (keyring != null) {
+                               try {
+                                       addRemoteRepositories(keyring);
+                               } catch (RepositoryException e) {
+                                       throw new ArgeoException(
+                                                       "Cannot browse remote repositories", e);
+                               }
+                       }
+                       return super.getChildren();
+               }
+       }
+
+       protected void addRemoteRepositories(Keyring jcrKeyring)
+                       throws RepositoryException {
+               Node userHome = UserJcrUtils.getUserHome(userSession);
+               if (userHome != null && userHome.hasNode(ARGEO_REMOTE)) {
+                       NodeIterator it = userHome.getNode(ARGEO_REMOTE).getNodes();
+                       while (it.hasNext()) {
+                               Node remoteNode = it.nextNode();
+                               String uri = remoteNode.getProperty(ARGEO_URI).getString();
+                               try {
+                                       RemoteRepositoryElem remoteRepositoryNode = new RemoteRepositoryElem(
+                                                       remoteNode.getName(), repositoryFactory, uri, this,
+                                                       userSession, jcrKeyring, remoteNode.getPath());
+                                       super.addChild(remoteRepositoryNode);
+                               } catch (Exception e) {
+                                       ErrorFeedback.show("Cannot add remote repository "
+                                                       + remoteNode, e);
+                               }
+                       }
+               }
+       }
+
+       public void registerNewRepository(String alias, Repository repository) {
+               // TODO: implement this
+               // Create a new RepositoryNode Object
+               // add it
+               // super.addChild(new RepositoriesNode(...));
+       }
+
+       /** Returns the {@link RepositoryRegister} wrapped by this object. */
+       public RepositoryRegister getRepositoryRegister() {
+               return repositoryRegister;
+       }
+}