Do not implement concepts.Builder

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / FrontendHistoryMetadataBuilder.java

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 d8d7bdda217b9dd2c1144b4acfd901b2435acd79..f869e7ac5ac679658ca146ab38685ebf91d65947 100644 (file)
--- 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
@@ -7,27 +7,39 @@
  */
 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.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;
 import org.opendaylight.controller.cluster.datastore.persisted.FrontendHistoryMetadata;
-import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.controller.cluster.datastore.utils.ImmutableUnsignedLongSet;
+import org.opendaylight.controller.cluster.datastore.utils.MutableUnsignedLongSet;
+import org.opendaylight.controller.cluster.datastore.utils.UnsignedLongBitmap;
 import org.opendaylight.yangtools.concepts.Identifiable;
 
-final class FrontendHistoryMetadataBuilder implements Builder<FrontendHistoryMetadata>, Identifiable<LocalHistoryIdentifier> {
-    private final LocalHistoryIdentifier identifier;
+final class FrontendHistoryMetadataBuilder implements Identifiable<LocalHistoryIdentifier> {
+    private final @NonNull Map<UnsignedLong, Boolean> closedTransactions;
+    private final @NonNull MutableUnsignedLongSet purgedTransactions;
+    private final @NonNull LocalHistoryIdentifier identifier;
 
-    private long nextTransaction;
     private boolean closed;
 
     FrontendHistoryMetadataBuilder(final LocalHistoryIdentifier identifier) {
-        this.identifier = Preconditions.checkNotNull(identifier);
+        this.identifier = requireNonNull(identifier);
+        purgedTransactions = MutableUnsignedLongSet.of();
+        closedTransactions = new HashMap<>(2);
     }
 
     FrontendHistoryMetadataBuilder(final ClientIdentifier clientId, final FrontendHistoryMetadata meta) {
         identifier = new LocalHistoryIdentifier(clientId, meta.getHistoryId(), meta.getCookie());
-        nextTransaction = meta.getNextTransaction();
+        closedTransactions = meta.getClosedTransactions().mutableCopy();
+        purgedTransactions = meta.getPurgedTransactions().mutableCopy();
         closed = meta.isClosed();
     }
 
@@ -36,16 +48,47 @@ final class FrontendHistoryMetadataBuilder implements Builder<FrontendHistoryMet
         return identifier;
     }
 
-    @Override
     public FrontendHistoryMetadata build() {
-        return new FrontendHistoryMetadata(identifier.getHistoryId(), identifier.getCookie(), nextTransaction, closed);
+        return new FrontendHistoryMetadata(identifier.getHistoryId(), identifier.getCookie(), closed,
+            UnsignedLongBitmap.copyOf(closedTransactions), purgedTransactions.immutableCopy());
     }
 
     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 long txidBits = txId.getTransactionId();
+        closedTransactions.remove(UnsignedLong.fromLongBits(txidBits));
+        purgedTransactions.add(txidBits);
+    }
+
+    void onTransactionsSkipped(final ImmutableUnsignedLongSet txIds) {
+        purgedTransactions.addAll(txIds);
+    }
+
+    /**
+     * 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);
     }
 }