Do not implement concepts.Builder

[controller.git] / opendaylight / md-sal / cds-access-api / src / main / java / org / opendaylight / controller / cluster / access / commands / ModifyTransactionRequestBuilder.java

diff --git a/opendaylight/md-sal/cds-access-api/src/main/java/org/opendaylight/controller/cluster/access/commands/ModifyTransactionRequestBuilder.java b/opendaylight/md-sal/cds-access-api/src/main/java/org/opendaylight/controller/cluster/access/commands/ModifyTransactionRequestBuilder.java
index 4e2a8cec2a26ae1a1485016b698446397cb55142..8e2e5cce0b61841d881132d8f5df87229982011f 100644 (file)
--- a/opendaylight/md-sal/cds-access-api/src/main/java/org/opendaylight/controller/cluster/access/commands/ModifyTransactionRequestBuilder.java
+++ b/opendaylight/md-sal/cds-access-api/src/main/java/org/opendaylight/controller/cluster/access/commands/ModifyTransactionRequestBuilder.java
@@ -7,35 +7,36 @@
  */
 package org.opendaylight.controller.cluster.access.commands;
 
+import static com.google.common.base.Preconditions.checkState;
+import static java.util.Objects.requireNonNull;
+
 import akka.actor.ActorRef;
 import com.google.common.annotations.Beta;
-import com.google.common.base.Preconditions;
 import java.util.ArrayList;
 import java.util.List;
-import javax.annotation.concurrent.NotThreadSafe;
+import org.eclipse.jdt.annotation.NonNull;
 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
-import org.opendaylight.yangtools.concepts.Builder;
 import org.opendaylight.yangtools.concepts.Identifiable;
 
 /**
- * A reusable {@link Builder} for creating {@link ModifyTransactionRequest} message instances. Its internal state is
- * reset when {@link #build()} is invoked, hence it can be used to create a sequence of messages.
+ * A reusable builder for creating {@link ModifyTransactionRequest} message instances. Its internal state is reset when
+ * {@link #build()} is invoked, hence it can be used to create a sequence of messages. This class is NOT thread-safe.
  *
  * @author Robert Varga
  */
 @Beta
-@NotThreadSafe
-public final class ModifyTransactionRequestBuilder implements Builder<ModifyTransactionRequest>,
-        Identifiable<TransactionIdentifier> {
+public final class ModifyTransactionRequestBuilder implements Identifiable<TransactionIdentifier> {
     private final List<TransactionModification> modifications = new ArrayList<>(1);
     private final TransactionIdentifier identifier;
     private final ActorRef replyTo;
+
     private PersistenceProtocol protocol;
-    private Long sequence;
+    private boolean haveSequence;
+    private long sequence;
 
     public ModifyTransactionRequestBuilder(final TransactionIdentifier identifier, final ActorRef replyTo) {
-        this.identifier = Preconditions.checkNotNull(identifier);
-        this.replyTo = Preconditions.checkNotNull(replyTo);
+        this.identifier = requireNonNull(identifier);
+        this.replyTo = requireNonNull(replyTo);
     }
 
     @Override
@@ -44,16 +45,18 @@ public final class ModifyTransactionRequestBuilder implements Builder<ModifyTran
     }
 
     private void checkNotFinished() {
-        Preconditions.checkState(protocol == null, "Batch has already been finished");
+        checkState(protocol == null, "Batch has already been finished");
     }
 
     public void addModification(final TransactionModification modification) {
         checkNotFinished();
-        modifications.add(Preconditions.checkNotNull(modification));
+        modifications.add(requireNonNull(modification));
     }
 
     public void setSequence(final long sequence) {
+        checkState(!haveSequence, "Sequence has already been set");
         this.sequence = sequence;
+        haveSequence = true;
     }
 
     public void setAbort() {
@@ -68,19 +71,23 @@ public final class ModifyTransactionRequestBuilder implements Builder<ModifyTran
         protocol = coordinated ? PersistenceProtocol.THREE_PHASE : PersistenceProtocol.SIMPLE;
     }
 
+    public void setReady() {
+        checkNotFinished();
+        protocol = PersistenceProtocol.READY;
+    }
+
     public int size() {
         return modifications.size();
     }
 
-    @Override
-    public ModifyTransactionRequest build() {
-        Preconditions.checkState(sequence != null, "Request sequence has not been set");
+    public @NonNull ModifyTransactionRequest build() {
+        checkState(haveSequence, "Request sequence has not been set");
 
         final ModifyTransactionRequest ret = new ModifyTransactionRequest(identifier, sequence, replyTo, modifications,
             protocol);
         modifications.clear();
         protocol = null;
-        sequence = null;
+        haveSequence = false;
         return ret;
     }
 }