X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2FStandaloneFrontendHistory.java;h=df13cd1368243ac8c128bc2eccf9c5ba14617bca;hb=f70fb5eaee514ffa5963049ac12286c2dee4ff80;hp=1f2eb72560aef600a2deb9520600f8f845600fd3;hpb=5fd8e6506248cc34da72281a1662612f6c2b2f9a;p=controller.git

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/StandaloneFrontendHistory.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/StandaloneFrontendHistory.java
index 1f2eb72560..df13cd1368 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/StandaloneFrontendHistory.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/StandaloneFrontendHistory.java
@@ -7,12 +7,20 @@
  */
 package org.opendaylight.controller.cluster.datastore;
 
-import com.google.common.base.Preconditions;
+import static java.util.Objects.requireNonNull;
+
+import com.google.common.collect.ImmutableMap;
+import com.google.common.primitives.UnsignedLong;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+import java.util.SortedSet;
+import org.eclipse.jdt.annotation.NonNull;
 import org.opendaylight.controller.cluster.access.concepts.ClientIdentifier;
 import org.opendaylight.controller.cluster.access.concepts.LocalHistoryIdentifier;
-import org.opendaylight.controller.cluster.access.concepts.RequestException;
 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
+import org.opendaylight.controller.cluster.datastore.utils.MutableUnsignedLongSet;
+import org.opendaylight.yangtools.yang.data.tree.api.DataTreeModification;
 
 /**
  * Standalone transaction specialization of {@link AbstractFrontendHistory}. There can be multiple open transactions
@@ -21,13 +29,28 @@ import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification
  * @author Robert Varga
  */
 final class StandaloneFrontendHistory extends AbstractFrontendHistory {
-    private final LocalHistoryIdentifier identifier;
-    private final ShardDataTree tree;
+    private final @NonNull LocalHistoryIdentifier identifier;
+    private final @NonNull ShardDataTree tree;
+
+    private StandaloneFrontendHistory(final String persistenceId, final ClientIdentifier clientId,
+            final ShardDataTree tree, final Map<UnsignedLong, Boolean> closedTransactions,
+            final MutableUnsignedLongSet purgedTransactions) {
+        super(persistenceId, tree, closedTransactions, purgedTransactions);
+        identifier = new LocalHistoryIdentifier(clientId, 0);
+        this.tree = requireNonNull(tree);
+    }
 
-    StandaloneFrontendHistory(final String persistenceId, final ClientIdentifier clientId, final ShardDataTree tree) {
-        super(persistenceId);
-        this.identifier = new LocalHistoryIdentifier(clientId, 0);
-        this.tree = Preconditions.checkNotNull(tree);
+    static @NonNull StandaloneFrontendHistory create(final String persistenceId, final ClientIdentifier clientId,
+            final ShardDataTree tree) {
+        return new StandaloneFrontendHistory(persistenceId, clientId, tree, ImmutableMap.of(),
+            MutableUnsignedLongSet.of());
+    }
+
+    static @NonNull StandaloneFrontendHistory recreate(final String persistenceId, final ClientIdentifier clientId,
+            final ShardDataTree tree, final Map<UnsignedLong, Boolean> closedTransactions,
+            final MutableUnsignedLongSet purgedTransactions) {
+        return new StandaloneFrontendHistory(persistenceId, clientId, tree, new HashMap<>(closedTransactions),
+            purgedTransactions.mutableCopy());
     }
 
     @Override
@@ -36,18 +59,31 @@ final class StandaloneFrontendHistory extends AbstractFrontendHistory {
     }
 
     @Override
-    FrontendTransaction createOpenTransaction(final TransactionIdentifier id) throws RequestException {
-        return FrontendTransaction.createOpen(this, tree.newReadWriteTransaction(id));
+    FrontendTransaction createOpenSnapshot(final TransactionIdentifier id) {
+        return FrontendReadOnlyTransaction.create(this,
+            new ReadOnlyShardDataTreeTransaction(tree, id, tree.takeSnapshot()));
+    }
+
+    @Override
+    FrontendTransaction createOpenTransaction(final TransactionIdentifier id) {
+        return FrontendReadWriteTransaction.createOpen(this,
+            new ReadWriteShardDataTreeTransaction(tree, id, tree.takeSnapshot().newModification()));
+    }
+
+    @Override
+    FrontendTransaction createReadyTransaction(final TransactionIdentifier id, final DataTreeModification mod) {
+        return FrontendReadWriteTransaction.createReady(this, id, mod);
     }
 
     @Override
-    FrontendTransaction createReadyTransaction(final TransactionIdentifier id, final DataTreeModification mod)
-            throws RequestException {
-        return FrontendTransaction.createReady(this, id, mod);
+    ShardDataTreeCohort createFailedCohort(final TransactionIdentifier id, final DataTreeModification mod,
+            final Exception failure) {
+        return tree.createFailedCohort(id, mod, failure);
     }
 
     @Override
-    ShardDataTreeCohort createReadyCohort(final TransactionIdentifier id, final DataTreeModification mod) {
-        return tree.createReadyCohort(id, mod);
+    ShardDataTreeCohort createReadyCohort(final TransactionIdentifier id, final DataTreeModification mod,
+            final Optional<SortedSet<String>> participatingShardNames) {
+        return tree.createReadyCohort(id, mod, participatingShardNames);
     }
 }