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%2FFrontendHistoryMetadataBuilder.java;h=eedabddf801a85baeca6738a828610b154c5e4f6;hb=178ebab612c3ddd338e759ca7e929c25c623b0b3;hp=d8d7bdda217b9dd2c1144b4acfd901b2435acd79;hpb=edd61d79da614388134b0e0a618010c91e9c91bd;p=controller.git

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/FrontendHistoryMetadataBuilder.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/FrontendHistoryMetadataBuilder.java
index d8d7bdda21..eedabddf80 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/FrontendHistoryMetadataBuilder.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/FrontendHistoryMetadataBuilder.java
@@ -7,7 +7,16 @@
  */
 package org.opendaylight.controller.cluster.datastore;
 
-import com.google.common.base.Preconditions;
+import static com.google.common.base.Preconditions.checkState;
+import static java.util.Objects.requireNonNull;
+
+import com.google.common.collect.Range;
+import com.google.common.collect.RangeSet;
+import com.google.common.collect.TreeRangeSet;
+import com.google.common.primitives.UnsignedLong;
+import java.util.HashMap;
+import java.util.Map;
+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.TransactionIdentifier;
@@ -15,19 +24,25 @@ import org.opendaylight.controller.cluster.datastore.persisted.FrontendHistoryMe
 import org.opendaylight.yangtools.concepts.Builder;
 import org.opendaylight.yangtools.concepts.Identifiable;
 
-final class FrontendHistoryMetadataBuilder implements Builder<FrontendHistoryMetadata>, Identifiable<LocalHistoryIdentifier> {
+final class FrontendHistoryMetadataBuilder implements Builder<FrontendHistoryMetadata>,
+        Identifiable<LocalHistoryIdentifier> {
+
+    private final Map<UnsignedLong, Boolean> closedTransactions;
+    private final RangeSet<UnsignedLong> purgedTransactions;
     private final LocalHistoryIdentifier identifier;
 
-    private long nextTransaction;
     private boolean closed;
 
     FrontendHistoryMetadataBuilder(final LocalHistoryIdentifier identifier) {
-        this.identifier = Preconditions.checkNotNull(identifier);
+        this.identifier = requireNonNull(identifier);
+        this.purgedTransactions = TreeRangeSet.create();
+        this.closedTransactions = new HashMap<>(2);
     }
 
     FrontendHistoryMetadataBuilder(final ClientIdentifier clientId, final FrontendHistoryMetadata meta) {
         identifier = new LocalHistoryIdentifier(clientId, meta.getHistoryId(), meta.getCookie());
-        nextTransaction = meta.getNextTransaction();
+        closedTransactions = new HashMap<>(meta.getClosedTransactions());
+        purgedTransactions = TreeRangeSet.create(meta.getPurgedTransactions());
         closed = meta.isClosed();
     }
 
@@ -38,14 +53,42 @@ final class FrontendHistoryMetadataBuilder implements Builder<FrontendHistoryMet
 
     @Override
     public FrontendHistoryMetadata build() {
-        return new FrontendHistoryMetadata(identifier.getHistoryId(), identifier.getCookie(), nextTransaction, closed);
+        return new FrontendHistoryMetadata(identifier.getHistoryId(), identifier.getCookie(), closed,
+            closedTransactions, purgedTransactions);
     }
 
     void onHistoryClosed() {
+        checkState(identifier.getHistoryId() != 0);
         closed = true;
     }
 
+    void onTransactionAborted(final TransactionIdentifier txId) {
+        closedTransactions.put(UnsignedLong.fromLongBits(txId.getTransactionId()), Boolean.FALSE);
+    }
+
     void onTransactionCommitted(final TransactionIdentifier txId) {
-        nextTransaction = txId.getTransactionId() + 1;
+        closedTransactions.put(UnsignedLong.fromLongBits(txId.getTransactionId()), Boolean.TRUE);
+    }
+
+    void onTransactionPurged(final TransactionIdentifier txId) {
+        final UnsignedLong id = UnsignedLong.fromLongBits(txId.getTransactionId());
+        closedTransactions.remove(id);
+        purgedTransactions.add(Range.closedOpen(id, UnsignedLong.ONE.plus(id)));
+    }
+
+    /**
+     * Transform frontend metadata for a particular client history into its {@link LocalFrontendHistory} counterpart.
+     *
+     * @param shard parent shard
+     * @return Leader history state
+     */
+    @NonNull AbstractFrontendHistory toLeaderState(final @NonNull Shard shard) {
+        if (identifier.getHistoryId() == 0) {
+            return StandaloneFrontendHistory.recreate(shard.persistenceId(), identifier.getClientId(),
+                shard.getDataStore(), closedTransactions, purgedTransactions);
+        }
+
+        return LocalFrontendHistory.recreate(shard.persistenceId(), shard.getDataStore(),
+            shard.getDataStore().recreateTransactionChain(identifier, closed), closedTransactions, purgedTransactions);
     }
 }