Author: mreutegg
Date: Wed Jan 30 08:05:09 2019
New Revision: 1852495

URL: http://svn.apache.org/viewvc?rev=1852495&view=rev
Log:
OAK-8012: Unmerged branch changes visible after restart

Merge revisions 1852492 and 1852493 from trunk

Modified:
    jackrabbit/oak/branches/1.10/   (props changed)
    
jackrabbit/oak/branches/1.10/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/NodeDocument.java
    
jackrabbit/oak/branches/1.10/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/BranchTest.java

Propchange: jackrabbit/oak/branches/1.10/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Wed Jan 30 08:05:09 2019
@@ -1,3 +1,3 @@
 /jackrabbit/oak/branches/1.0:1665962
-/jackrabbit/oak/trunk:1851451,1852052,1852084,1852451
+/jackrabbit/oak/trunk:1851451,1852052,1852084,1852451,1852492-1852493
 /jackrabbit/trunk:1345480

Modified: 
jackrabbit/oak/branches/1.10/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/NodeDocument.java
URL: 
http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.10/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/NodeDocument.java?rev=1852495&r1=1852494&r2=1852495&view=diff
==============================================================================
--- 
jackrabbit/oak/branches/1.10/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/NodeDocument.java
 (original)
+++ 
jackrabbit/oak/branches/1.10/oak-store-document/src/main/java/org/apache/jackrabbit/oak/plugins/document/NodeDocument.java
 Wed Jan 30 08:05:09 2019
@@ -2064,20 +2064,25 @@ public final class NodeDocument extends
             return false;
         }
         if (Utils.isCommitted(commitValue)) {
-            if (context.getBranches().getBranch(readRevision) == null
-                    && !readRevision.isBranch()) {
+            Branch b = context.getBranches().getBranch(readRevision);
+            if (b == null) {
+                // readRevision is not from a branch commit, though it may
+                // still be a branch revision when it references the base
+                // of a new branch that has not yet been created. In that
+                // case the branch revision is equivalent with the trunk
+                // revision.
+
                 // resolve commit revision
                 revision = resolveCommitRevision(revision, commitValue);
-                // readRevision is not from a branch
                 // compare resolved revision as is
                 return !readRevision.isRevisionNewer(revision);
             } else {
-                // on same merged branch?
-                Revision tr = 
readRevision.getBranchRevision().asTrunkRevision();
-                if (commitValue.equals(context.getCommitValue(tr, this))) {
-                    // compare unresolved revision
-                    return !readRevision.isRevisionNewer(revision);
-                }
+                // read revision is on a branch and the change is committed
+                // get the base revision of the branch and check
+                // if change is visible from there
+                RevisionVector baseRev = 
b.getBase(readRevision.getBranchRevision());
+                revision = resolveCommitRevision(revision, commitValue);
+                return !baseRev.isRevisionNewer(revision);
             }
         } else {
             // branch commit (not merged)
@@ -2088,9 +2093,23 @@ public final class NodeDocument extends
                 // this is an unmerged branch commit from another cluster node,
                 // hence never visible to us
                 return false;
+            } else {
+                // unmerged branch change with local clusterId
+                Branch b = context.getBranches().getBranch(readRevision);
+                if (b == null) {
+                    // reading on trunk never sees changes on an unmerged 
branch
+                    return false;
+                } else if (b.containsCommit(revision)) {
+                    // read revision is on the same branch as the
+                    // unmerged branch changes -> compare revisions as is
+                    return !readRevision.isRevisionNewer(revision);
+                } else {
+                    // read revision is on a different branch than the
+                    // unmerged branch changes -> never visible
+                    return false;
+                }
             }
         }
-        return includeRevision(context, resolveCommitRevision(revision, 
commitValue), readRevision);
     }
 
     /**
@@ -2114,37 +2133,6 @@ public final class NodeDocument extends
         return value;
     }
 
-    private static boolean includeRevision(RevisionContext context,
-                                           Revision x,
-                                           RevisionVector readRevision) {
-        Branch b = null;
-        if (x.getClusterId() == context.getClusterId()) {
-            RevisionVector branchRev = new 
RevisionVector(x).asBranchRevision(context.getClusterId());
-            b = context.getBranches().getBranch(branchRev);
-        }
-        if (b != null) {
-            // only include if read revision is also a branch revision
-            // with a history including x
-            if (readRevision.isBranch()
-                    && b.containsCommit(readRevision.getBranchRevision())) {
-                // in same branch, include if the same revision or
-                // readRevision is newer
-                return !readRevision.isRevisionNewer(x);
-            }
-            // not part of branch identified by requestedRevision
-            return false;
-        }
-        // assert: x is not a branch commit
-        b = context.getBranches().getBranch(readRevision);
-        if (b != null) {
-            // reset readRevision to branch base revision to make
-            // sure we don't include revisions committed after branch
-            // was created
-            readRevision = b.getBase(readRevision.getBranchRevision());
-        }
-        return !readRevision.isRevisionNewer(x);
-    }
-
     /**
      * Get the latest property value smaller or equal the readRevision 
revision.
      *

Modified: 
jackrabbit/oak/branches/1.10/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/BranchTest.java
URL: 
http://svn.apache.org/viewvc/jackrabbit/oak/branches/1.10/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/BranchTest.java?rev=1852495&r1=1852494&r2=1852495&view=diff
==============================================================================
--- 
jackrabbit/oak/branches/1.10/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/BranchTest.java
 (original)
+++ 
jackrabbit/oak/branches/1.10/oak-store-document/src/test/java/org/apache/jackrabbit/oak/plugins/document/BranchTest.java
 Wed Jan 30 08:05:09 2019
@@ -16,16 +16,37 @@
  */
 package org.apache.jackrabbit.oak.plugins.document;
 
+import java.util.HashSet;
+import java.util.Set;
+
 import com.google.common.collect.Sets;
 
+import org.apache.jackrabbit.oak.api.PropertyState;
 import org.apache.jackrabbit.oak.plugins.document.Branch.BranchCommit;
+import org.apache.jackrabbit.oak.plugins.document.memory.MemoryDocumentStore;
+import org.apache.jackrabbit.oak.spi.state.DefaultNodeStateDiff;
+import org.apache.jackrabbit.oak.spi.state.NodeBuilder;
+import org.apache.jackrabbit.oak.spi.state.NodeState;
+import org.apache.jackrabbit.oak.spi.state.NodeStateDiff;
+import org.junit.Rule;
 import org.junit.Test;
 
+import static 
org.apache.jackrabbit.oak.plugins.document.TestUtils.asDocumentState;
+import static 
org.apache.jackrabbit.oak.plugins.document.TestUtils.persistToBranch;
+import static 
org.apache.jackrabbit.oak.plugins.document.util.Utils.getRootDocument;
+import static org.hamcrest.Matchers.contains;
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
 public class BranchTest {
 
+    @Rule
+    public DocumentMKBuilderProvider builderProvider = new 
DocumentMKBuilderProvider();
+
     @Test
     public void getModifiedPathsUntil() {
         UnmergedBranches branches = new UnmergedBranches();
@@ -66,6 +87,57 @@ public class BranchTest {
         assertModifiedPaths(b.getModifiedPathsUntil(c5));
     }
 
+    @Test
+    public void orphanedBranchTest() {
+        MemoryDocumentStore store = new MemoryDocumentStore();
+        DocumentNodeStore ns = builderProvider.newBuilder()
+                .setDocumentStore(store).build();
+        NodeBuilder builder = ns.getRoot().builder();
+        builder.setProperty("p", "v");
+        persistToBranch(builder);
+        ns.dispose();
+
+        // start again
+        ns = builderProvider.newBuilder()
+                .setDocumentStore(store).build();
+        assertFalse(ns.getRoot().hasProperty("p"));
+    }
+
+    @Test
+    public void compareBranchStates() {
+        DocumentNodeStore ns = builderProvider.newBuilder()
+                .setAsyncDelay(0).build();
+        ns.runBackgroundOperations();
+        DocumentStore store = ns.getDocumentStore();
+
+        NodeBuilder builder = ns.getRoot().builder();
+        builder.setProperty("p", "a");
+        persistToBranch(builder);
+        NodeState s1 = builder.getNodeState();
+        builder.setProperty("p", "b");
+        persistToBranch(builder);
+        NodeState s2 = builder.getNodeState();
+
+        Set<String> changes = new HashSet<>();
+        NodeStateDiff diff = new DefaultNodeStateDiff() {
+            @Override
+            public boolean propertyChanged(PropertyState before,
+                                           PropertyState after) {
+                changes.add(before.getName());
+                return super.propertyChanged(before, after);
+            }
+        };
+        s2.compareAgainstBaseState(s1, diff);
+        assertThat(changes, contains("p"));
+
+        NodeDocument root = getRootDocument(store);
+        RevisionVector br = asDocumentState(s1).getRootRevision();
+        assertTrue(br.isBranch());
+        DocumentNodeState state = root.getNodeAtRevision(ns, br, null);
+        assertNotNull(state);
+        assertEquals("a", state.getString("p"));
+    }
+
     private void assertModifiedPaths(Iterable<String> actual, String... 
expected) {
         assertEquals(Sets.newHashSet(expected), Sets.newHashSet(actual));
     }


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