Author: reschke
Date: Tue May 28 17:21:04 2019
New Revision: 1860291

URL: http://svn.apache.org/viewvc?rev=1860291&view=rev
Log:
OAK-8207: Read-only DocumentNodeStore tries to create root document (ported to 
1.8)

Modified:
    
jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java
    
jackrabbit/oak/branches/1.8/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStoreTest.java

Modified: 
jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java
URL: 
http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java?rev=1860291&r1=1860290&r2=1860291&view=diff
==============================================================================
--- 
jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java
 (original)
+++ 
jackrabbit/oak/branches/1.8/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStore.java
 Tue May 28 17:21:04 2019
@@ -607,11 +607,15 @@ public final class DocumentNodeStore
                 builder.getWeigher(), builder.getChildrenCacheSize());
 
         diffCache = builder.getDiffCache();
-        checkpoints = new Checkpoints(this);
 
         // check if root node exists
         NodeDocument rootDoc = store.find(NODES, Utils.getIdFromPath("/"));
         if (rootDoc == null) {
+            if (readOnlyMode) {
+                throw new DocumentStoreException("Unable to initialize a " +
+                        "read-only DocumentNodeStore. The DocumentStore nodes 
" +
+                        "collection does not have a root document.");
+            }
             // root node is missing: repository is not initialized
             Revision commitRev = newRevision();
             Commit commit = new Commit(this, commitRev, null);
@@ -653,6 +657,8 @@ public final class DocumentNodeStore
             }
         }
 
+        checkpoints = new Checkpoints(this);
+
         // Renew the lease because it may have been stale
         renewClusterIdLease();
 

Modified: 
jackrabbit/oak/branches/1.8/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStoreTest.java
URL: 
http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.8/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStoreTest.java?rev=1860291&r1=1860290&r2=1860291&view=diff
==============================================================================
--- 
jackrabbit/oak/branches/1.8/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStoreTest.java
 (original)
+++ 
jackrabbit/oak/branches/1.8/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/DocumentNodeStoreTest.java
 Tue May 28 17:21:04 2019
@@ -3641,6 +3641,19 @@ public class DocumentNodeStoreTest {
         );
     }
 
+    @Test
+    public void readOnlyOnEmptyDocumentStore() {
+        DocumentStore store = new MemoryDocumentStore();
+        try {
+            builderProvider.newBuilder().setDocumentStore(store)
+                    .setReadOnlyMode().build();
+            fail("must fail with DocumentStoreException");
+        } catch (Exception e) {
+            // must not hit last line of defence (ReadOnlyDocumentStoreWrapper)
+            assertFalse(Throwables.getRootCause(e) instanceof 
UnsupportedOperationException);
+        }
+    }
+
     private void getChildNodeCountTest(int numChildren,
                                        Iterable<Long> maxValues,
                                        Iterable<Long> expectedValues)


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