Supressed links to modify nodes on the frozen node HTML view.

fcrepo · Nov 26, 2013 · 42f3f2d · 42f3f2d
1 parent 1df8cea
commit 42f3f2d
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Showing 3 changed files with 53 additions and 9 deletions.
diff --git a/fcrepo-http-api/src/main/resources/views/common-node-actions.vsl b/fcrepo-http-api/src/main/resources/views/common-node-actions.vsl
@@ -1,19 +1,30 @@
 #set ($content = $helpers.getObjectsAsString($rdf, $topic, $rdfLexicon.HAS_CONTENT, false))
+#set ($readonly = $helpers.isFrozenNode($rdf, $topic))
+
+#if ($readonly == true)
+<div class="alert alert-warning">
+    <span class="glyphicon glyphicon-warning-sign"></span>
+    This is a <strong>historic version</strong> and cannot be modified.
+</div>
+#end
 
 #if ($content != "")
     <a href="$content" class="btn btn-success btn-lg"><span class="glyphicon glyphicon-download"></span> Download Content</a>
-
+
+    #if ($readonly == false)
     <h3>Update Content</h3>
-      <form action="javascript:updateFile()">
-        <div class="form-group">
-          <label for="update_file" class="control-label">File</label>
-          <input type="file" id="update_file"/>
-        </div>
-        <input type="submit" class="btn btn-primary" value="Update">
-      </form>
+    <form action="javascript:updateFile()">
+      <div class="form-group">
+        <label for="update_file" class="control-label">File</label>
+        <input type="file" id="update_file"/>
+      </div>
+      <input type="submit" class="btn btn-primary" value="Update">
+    </form>
+    #end
     <hr />
 #end
 
+#if ($readonly == false)
 <form id="action_create" name="action_create" method="POST" enctype="multipart/form-data">
     <h3>Create New Node</h3>
     <div class="form-group">
@@ -67,7 +78,7 @@ WHERE { }
     <button name="delete-button" type="submit" class="btn btn-danger">Delete</button>
     <hr />
 </form>
-
+#end
 
 #set ($serializations = $rdf.find($nodeany, $topic, $helpers.asNode($rdfLexicon.HAS_SERIALIZATION), $nodeany))
 
@@ -90,6 +101,7 @@ WHERE { }
 #end
 
 
+#if ($readonly == false)
 #set ($serializations = $rdf.find($nodeany, $topic, $helpers.asNode($rdfLexicon.HAS_SERIALIZATION), $nodeany))
 
 #if($serializations.hasNext())
@@ -138,3 +150,4 @@ WHERE { }
     <button type="submit" class="btn btn-primary">Start Transaction</button>
 </form>
 #end
+#end
diff --git a/fcrepo-http-commons/src/main/java/org/fcrepo/http/commons/responses/ViewHelpers.java b/fcrepo-http-commons/src/main/java/org/fcrepo/http/commons/responses/ViewHelpers.java
@@ -30,6 +30,7 @@
 import com.hp.hpl.jena.vocabulary.RDF;
 import com.hp.hpl.jena.vocabulary.RDFS;
 import org.fcrepo.http.commons.api.rdf.QuadOrdering;
+import org.fcrepo.kernel.RdfLexicon;
 import org.slf4j.Logger;
 
 import com.google.common.collect.ImmutableList;
@@ -110,6 +111,18 @@ public String getObjectTitle(final DatasetGraph dataset,
 
     }
 
+    /**
+     * Determines whether the subject is of type nt:frozenNode.
+     */
+    public boolean isFrozenNode(final DatasetGraph dataset,
+        final Node subject) {
+        final Iterator<Quad> objects
+            = getObjects(dataset, subject, RdfLexicon.HAS_PRIMARY_TYPE);
+        return objects.hasNext()
+                && objects.next().getObject()
+                .getLiteralValue().toString().equals("nt:frozenNode");
+    }
+
     /**
      * Get the string version of the object that matches the given subject and
      * predicate

diff --git a/fcrepo-http-commons/src/test/java/org/fcrepo/http/commons/responses/ViewHelpersTest.java b/fcrepo-http-commons/src/test/java/org/fcrepo/http/commons/responses/ViewHelpersTest.java
@@ -28,7 +28,9 @@
 import static org.fcrepo.kernel.RdfLexicon.CREATED_BY;
 import static org.fcrepo.kernel.RdfLexicon.DC_TITLE;
 import static org.fcrepo.http.commons.test.util.TestHelpers.getUriInfoImpl;
+import static org.fcrepo.kernel.RdfLexicon.HAS_PRIMARY_TYPE;
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 
 import java.util.Iterator;
@@ -85,6 +87,22 @@ public void shouldRefuseToConvertAForeignUriToNodeBreadcrumbs() {
         assertTrue(nodeBreadcrumbs.isEmpty());
     }
 
+    @Test
+    public void testIsFrozenNode() {
+        final DatasetGraph mem = createMem();
+        mem.add(createAnon(), createURI("a/b/c"), HAS_PRIMARY_TYPE.asNode(),
+                createLiteral("nt:frozenNode"));
+        assertTrue("Node is a frozen node.", testObj.isFrozenNode(mem, createURI("a/b/c")));
+    }
+
+    @Test
+    public void testIsNotFrozenNode() {
+        final DatasetGraph mem = createMem();
+        mem.add(createAnon(), createURI("a/b/c"), HAS_PRIMARY_TYPE.asNode(),
+                createLiteral("nt:file"));
+        assertFalse("Node is not a frozen node.", testObj.isFrozenNode(mem, createURI("a/b/c")));
+    }
+
     @Test
     public void shouldTryToExtractDublinCoreTitleFromNode() {
         final DatasetGraph mem = createMem();