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%2FAbstractTransactionContext.java;h=571899ba14343f7b8f189571e18f708b397fc86b;hb=9e7a9b3725ad25f9adf85f0ad796b7cf748795a4;hp=df478b063015c44eb2c96d304da2705d42bf785e;hpb=48df31d5e46dd06aa97bb2ab0c0def2d28ed491d;p=controller.git

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/AbstractTransactionContext.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/AbstractTransactionContext.java
index df478b0630..571899ba14 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/AbstractTransactionContext.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/AbstractTransactionContext.java
@@ -7,31 +7,78 @@
  */
 package org.opendaylight.controller.cluster.datastore;
 
+import com.google.common.base.Preconditions;
+import javax.annotation.Nonnull;
 import org.opendaylight.controller.cluster.datastore.identifiers.TransactionIdentifier;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 abstract class AbstractTransactionContext implements TransactionContext {
-
     private static final Logger LOG = LoggerFactory.getLogger(AbstractTransactionContext.class);
-
+    private final OperationLimiter limiter;
     private long modificationCount = 0;
+    private boolean handoffComplete;
+
+    protected AbstractTransactionContext(final OperationLimiter limiter) {
+        this.limiter = Preconditions.checkNotNull(limiter);
+    }
 
-    private final TransactionIdentifier identifier;
+    /**
+     * Get the transaction identifier associated with this context.
+     *
+     * @return Transaction identifier.
+     */
+    @Nonnull protected final TransactionIdentifier getIdentifier() {
+        return limiter.getIdentifier();
+    }
 
-    protected AbstractTransactionContext(TransactionIdentifier identifier) {
-        this.identifier = identifier;
+    /**
+     * Return the operation limiter associated with this context.
+     * @return Operation limiter.
+     */
+    @Nonnull protected final OperationLimiter getLimiter() {
+        return limiter;
     }
 
-    protected final TransactionIdentifier getIdentifier() {
-        return identifier;
+    /**
+     * Indicate whether all operations have been handed off by the {@link TransactionContextWrapper}.
+     *
+     * @return True if this context is responsible for throttling.
+     */
+    protected final boolean isOperationHandoffComplete() {
+        return handoffComplete;
     }
 
-    protected void incrementModificationCount(){
+    /**
+     * Acquire operation from the limiter if the handoff has completed. If
+     * the handoff is still ongoing, this method does nothing.
+     */
+    protected final void acquireOperation() {
+        if (handoffComplete) {
+            limiter.acquire();
+        }
+    }
+
+    /**
+     * Acquire operation from the limiter if the handoff has NOT completed. If
+     * the handoff has completed, this method does nothing.
+     */
+    protected final void releaseOperation() {
+        if (!handoffComplete) {
+            limiter.release();
+        }
+    }
+
+    protected final void incrementModificationCount() {
         modificationCount++;
     }
 
-    protected void logModificationCount(){
-        LOG.debug("Total modifications on Tx {} = [ {} ]", identifier, modificationCount);
+    protected final void logModificationCount() {
+        LOG.debug("Total modifications on Tx {} = [ {} ]", getIdentifier(), modificationCount);
+    }
+
+    @Override
+    public final void operationHandoffComplete() {
+        handoffComplete = true;
     }
-}
\ No newline at end of file
+}