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%2FAbstractFrontendHistory.java;h=072f8ede80c978987e78767f0df019f56efa6438;hb=7ad6a27e9b98861d9286977320198375a44a38f1;hp=1aad9e99823540ab9fd53fe9f8c89a82e67e3054;hpb=f984aadefd56f48aec345b8b7cc7ddf27b794f56;p=controller.git

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/AbstractFrontendHistory.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/AbstractFrontendHistory.java
index 1aad9e9982..072f8ede80 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/AbstractFrontendHistory.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/AbstractFrontendHistory.java
@@ -16,6 +16,7 @@ import com.google.common.primitives.UnsignedLong;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
+import java.util.SortedSet;
 import javax.annotation.Nullable;
 import org.opendaylight.controller.cluster.access.commands.AbstractReadTransactionRequest;
 import org.opendaylight.controller.cluster.access.commands.ClosedTransactionException;
@@ -73,53 +74,15 @@ abstract class AbstractFrontendHistory implements Identifiable<LocalHistoryIdent
         return tree.readTime();
     }
 
-    final @Nullable TransactionSuccess<?> handleTransactionRequest(final TransactionRequest<?> request,
+    @Nullable
+    final TransactionSuccess<?> handleTransactionRequest(final TransactionRequest<?> request,
             final RequestEnvelope envelope, final long now) throws RequestException {
-        final TransactionIdentifier id = request.getTarget();
-        final UnsignedLong ul = UnsignedLong.fromLongBits(id.getTransactionId());
-
         if (request instanceof TransactionPurgeRequest) {
-            if (purgedTransactions.contains(ul)) {
-                // Retransmitted purge request: nothing to do
-                LOG.debug("{}: transaction {} already purged", persistenceId, id);
-                return new TransactionPurgeResponse(id, request.getSequence());
-            }
-
-            // We perform two lookups instead of a straight remove, because once the map becomes empty we switch it
-            // to an ImmutableMap, which does not allow remove().
-            if (closedTransactions.containsKey(ul)) {
-                tree.purgeTransaction(id, () -> {
-                    closedTransactions.remove(ul);
-                    if (closedTransactions.isEmpty()) {
-                        closedTransactions = ImmutableMap.of();
-                    }
-
-                    purgedTransactions.add(Range.closedOpen(ul, UnsignedLong.ONE.plus(ul)));
-                    LOG.debug("{}: finished purging inherited transaction {}", persistenceId(), id);
-                    envelope.sendSuccess(new TransactionPurgeResponse(id, request.getSequence()), readTime() - now);
-                });
-                return null;
-            }
-
-            final FrontendTransaction tx = transactions.get(id);
-            if (tx == null) {
-                // This should never happen because the purge callback removes the transaction and puts it into
-                // purged transactions in one go. If it does, we warn about the situation and
-                LOG.warn("{}: transaction {} not tracked in {}, but not present in active transactions", persistenceId,
-                    id, purgedTransactions);
-                purgedTransactions.add(Range.closedOpen(ul, UnsignedLong.ONE.plus(ul)));
-                return new TransactionPurgeResponse(id, request.getSequence());
-            }
-
-            tree.purgeTransaction(id, () -> {
-                purgedTransactions.add(Range.closedOpen(ul, UnsignedLong.ONE.plus(ul)));
-                transactions.remove(id);
-                LOG.debug("{}: finished purging transaction {}", persistenceId(), id);
-                envelope.sendSuccess(new TransactionPurgeResponse(id, request.getSequence()), readTime() - now);
-            });
-            return null;
+            return handleTransactionPurgeRequest(request, envelope, now);
         }
 
+        final TransactionIdentifier id = request.getTarget();
+        final UnsignedLong ul = UnsignedLong.fromLongBits(id.getTransactionId());
         if (purgedTransactions.contains(ul)) {
             LOG.warn("{}: Request {} is contained purged transactions {}", persistenceId, request, purgedTransactions);
             throw new DeadTransactionException(purgedTransactions);
@@ -154,31 +117,80 @@ abstract class AbstractFrontendHistory implements Identifiable<LocalHistoryIdent
         return tx.handleRequest(request, envelope, now);
     }
 
-    void destroy(final long sequence, final RequestEnvelope envelope, final long now) {
+    private TransactionSuccess<?> handleTransactionPurgeRequest(final TransactionRequest<?> request,
+            final RequestEnvelope envelope, final long now) {
+        final TransactionIdentifier id = request.getTarget();
+        final UnsignedLong ul = UnsignedLong.fromLongBits(id.getTransactionId());
+        if (purgedTransactions.contains(ul)) {
+            // Retransmitted purge request: nothing to do
+            LOG.debug("{}: transaction {} already purged", persistenceId, id);
+            return new TransactionPurgeResponse(id, request.getSequence());
+        }
+
+        // We perform two lookups instead of a straight remove, because once the map becomes empty we switch it
+        // to an ImmutableMap, which does not allow remove().
+        if (closedTransactions.containsKey(ul)) {
+            tree.purgeTransaction(id, () -> {
+                closedTransactions.remove(ul);
+                if (closedTransactions.isEmpty()) {
+                    closedTransactions = ImmutableMap.of();
+                }
+
+                purgedTransactions.add(Range.closedOpen(ul, UnsignedLong.ONE.plus(ul)));
+                LOG.debug("{}: finished purging inherited transaction {}", persistenceId(), id);
+                envelope.sendSuccess(new TransactionPurgeResponse(id, request.getSequence()), readTime() - now);
+            });
+            return null;
+        }
+
+        final FrontendTransaction tx = transactions.get(id);
+        if (tx == null) {
+            // This should never happen because the purge callback removes the transaction and puts it into
+            // purged transactions in one go. If it does, we warn about the situation and
+            LOG.warn("{}: transaction {} not tracked in {}, but not present in active transactions", persistenceId,
+                id, purgedTransactions);
+            purgedTransactions.add(Range.closedOpen(ul, UnsignedLong.ONE.plus(ul)));
+            return new TransactionPurgeResponse(id, request.getSequence());
+        }
+
+        tree.purgeTransaction(id, () -> {
+            purgedTransactions.add(Range.closedOpen(ul, UnsignedLong.ONE.plus(ul)));
+            transactions.remove(id);
+            LOG.debug("{}: finished purging transaction {}", persistenceId(), id);
+            envelope.sendSuccess(new TransactionPurgeResponse(id, request.getSequence()), readTime() - now);
+        });
+
+        return null;
+    }
+
+    final void destroy(final long sequence, final RequestEnvelope envelope, final long now) {
         LOG.debug("{}: closing history {}", persistenceId(), getIdentifier());
         tree.closeTransactionChain(getIdentifier(),
             () -> envelope.sendSuccess(new LocalHistorySuccess(getIdentifier(), sequence), readTime() - now));
     }
 
-    void purge(final long sequence, final RequestEnvelope envelope, final long now) {
+    final void purge(final long sequence, final RequestEnvelope envelope, final long now) {
         LOG.debug("{}: purging history {}", persistenceId(), getIdentifier());
         tree.purgeTransactionChain(getIdentifier(),
             () -> envelope.sendSuccess(new LocalHistorySuccess(getIdentifier(), sequence), readTime() - now));
     }
 
-    private FrontendTransaction createTransaction(final TransactionRequest<?> request, final TransactionIdentifier id)
-            throws RequestException {
+    final void retire() {
+        transactions.values().forEach(FrontendTransaction::retire);
+        tree.removeTransactionChain(getIdentifier());
+    }
+
+    private FrontendTransaction createTransaction(final TransactionRequest<?> request, final TransactionIdentifier id) {
         if (request instanceof CommitLocalTransactionRequest) {
             LOG.debug("{}: allocating new ready transaction {}", persistenceId(), id);
             tree.getStats().incrementReadWriteTransactionCount();
             return createReadyTransaction(id, ((CommitLocalTransactionRequest) request).getModification());
         }
-        if (request instanceof AbstractReadTransactionRequest) {
-            if (((AbstractReadTransactionRequest<?>) request).isSnapshotOnly()) {
-                LOG.debug("{}: allocating new open snapshot {}", persistenceId(), id);
-                tree.getStats().incrementReadOnlyTransactionCount();
-                return createOpenSnapshot(id);
-            }
+        if (request instanceof AbstractReadTransactionRequest
+                && ((AbstractReadTransactionRequest<?>) request).isSnapshotOnly()) {
+            LOG.debug("{}: allocating new open snapshot {}", persistenceId(), id);
+            tree.getStats().incrementReadOnlyTransactionCount();
+            return createOpenSnapshot(id);
         }
 
         LOG.debug("{}: allocating new open transaction {}", persistenceId(), id);
@@ -186,17 +198,18 @@ abstract class AbstractFrontendHistory implements Identifiable<LocalHistoryIdent
         return createOpenTransaction(id);
     }
 
-    abstract FrontendTransaction createOpenSnapshot(TransactionIdentifier id) throws RequestException;
+    abstract FrontendTransaction createOpenSnapshot(TransactionIdentifier id);
 
-    abstract FrontendTransaction createOpenTransaction(TransactionIdentifier id) throws RequestException;
+    abstract FrontendTransaction createOpenTransaction(TransactionIdentifier id);
 
     abstract FrontendTransaction createReadyTransaction(TransactionIdentifier id, DataTreeModification mod)
-        throws RequestException;
+        ;
 
     abstract ShardDataTreeCohort createFailedCohort(TransactionIdentifier id, DataTreeModification mod,
             Exception failure);
 
-    abstract ShardDataTreeCohort createReadyCohort(TransactionIdentifier id, DataTreeModification mod);
+    abstract ShardDataTreeCohort createReadyCohort(TransactionIdentifier id, DataTreeModification mod,
+            Optional<SortedSet<String>> participatingShardNames);
 
     @Override
     public String toString() {