Introduce generic JCR tree content providers

[lgpl/argeo-commons.git] / eclipse / runtime / org.argeo.eclipse.ui.jcr / src / main / java / org / argeo / eclipse / ui / jcr / SimpleNodeContentProvider.java

diff --git a/eclipse/runtime/org.argeo.eclipse.ui.jcr/src/main/java/org/argeo/eclipse/ui/jcr/SimpleNodeContentProvider.java b/eclipse/runtime/org.argeo.eclipse.ui.jcr/src/main/java/org/argeo/eclipse/ui/jcr/SimpleNodeContentProvider.java
new file mode 100644 (file)
index 0000000..6c827df
--- /dev/null
+++ b/eclipse/runtime/org.argeo.eclipse.ui.jcr/src/main/java/org/argeo/eclipse/ui/jcr/SimpleNodeContentProvider.java
@@ -0,0 +1,58 @@
+package org.argeo.eclipse.ui.jcr;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+import javax.jcr.Session;
+
+import org.argeo.ArgeoException;
+import org.argeo.jcr.JcrUtils;
+
+/** Simple JCR node content provider taking a list of String as base path. */
+public class SimpleNodeContentProvider extends AbstractNodeContentProvider {
+       private final List<String> basePaths;
+       private Boolean mkdirs = false;
+
+       public SimpleNodeContentProvider(Session session, String... basePaths) {
+               this(session, Arrays.asList(basePaths));
+       }
+
+       public SimpleNodeContentProvider(Session session, List<String> basePaths) {
+               super(session);
+               this.basePaths = basePaths;
+       }
+
+       @Override
+       protected Boolean isBasePath(String path) {
+               if (basePaths.contains(path))
+                       return true;
+               return super.isBasePath(path);
+       }
+
+       public Object[] getElements(Object inputElement) {
+               try {
+                       List<Node> baseNodes = new ArrayList<Node>();
+                       for (String basePath : basePaths)
+                               if (mkdirs && !getSession().itemExists(basePath))
+                                       baseNodes.add(JcrUtils.mkdirs(getSession(), basePath));
+                               else
+                                       baseNodes.add(getSession().getNode(basePath));
+                       return baseNodes.toArray();
+               } catch (RepositoryException e) {
+                       throw new ArgeoException("Cannot get base nodes for " + basePaths,
+                                       e);
+               }
+       }
+
+       public List<String> getBasePaths() {
+               return basePaths;
+       }
+
+       public void setMkdirs(Boolean mkdirs) {
+               this.mkdirs = mkdirs;
+       }
+
+}