Bump odlparent to 5.0.0
[openflowplugin.git] / openflowplugin-impl / src / main / java / org / opendaylight / openflowplugin / impl / services / batch / FlatBatchGroupAdapters.java
index 0ea8a07f91cc084d5fe8102f6113823ebac42e43..c0de5ebaa97519c0600577869ede892790807f09 100644 (file)
@@ -13,11 +13,10 @@ import com.google.common.base.Function;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.JdkFutureAdapters;
 import com.google.common.util.concurrent.ListenableFuture;
+import com.google.common.util.concurrent.MoreExecutors;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.Future;
-import javax.annotation.Nullable;
-import org.opendaylight.openflowplugin.impl.util.FlatBatchUtil;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flat.batch.service.rev160321.ProcessFlatBatchOutput;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flat.batch.service.rev160321.ProcessFlatBatchOutputBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flat.batch.service.rev160321.process.flat.batch.input.batch.batch.choice.flat.batch.add.group._case.FlatBatchAddGroup;
@@ -45,18 +44,19 @@ import org.opendaylight.yangtools.yang.common.RpcResult;
 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
 
 /**
- * transform between FlatBatch API and group batch API
+ * Transform between FlatBatch API and group batch API.
  */
-public class FlatBatchGroupAdapters {
+public final class FlatBatchGroupAdapters {
 
     private FlatBatchGroupAdapters() {
-        throw new IllegalStateException("This class should not be instantiated.");
     }
 
     /**
+     * Adapt flat batch add group.
      * @param planStep batch step containing changes of the same type
      * @param node     pointer for RPC routing
-     * @return input suitable for {@link org.opendaylight.yang.gen.v1.urn.opendaylight.groups.service.rev160315.SalGroupsBatchService#addGroupsBatch(AddGroupsBatchInput)}
+     * @return input suitable for {@link org.opendaylight.yang.gen.v1.urn
+     * .opendaylight.groups.service.rev160315.SalGroupsBatchService#addGroupsBatch(AddGroupsBatchInput)}
      */
     public static AddGroupsBatchInput adaptFlatBatchAddGroup(final BatchPlanStep planStep, final NodeRef node) {
         final List<BatchAddGroups> batchGroups = new ArrayList<>();
@@ -75,9 +75,11 @@ public class FlatBatchGroupAdapters {
     }
 
     /**
+     * Adapt flat batch remove group.
      * @param planStep batch step containing changes of the same type
      * @param node     pointer for RPC routing
-     * @return input suitable for {@link org.opendaylight.yang.gen.v1.urn.opendaylight.groups.service.rev160315.SalGroupsBatchService#removeGroupsBatch(RemoveGroupsBatchInput)}
+     * @return input suitable for {@link org.opendaylight.yang.gen.v1.urn
+     * .opendaylight.groups.service.rev160315.SalGroupsBatchService#removeGroupsBatch(RemoveGroupsBatchInput)}
      */
     public static RemoveGroupsBatchInput adaptFlatBatchRemoveGroup(final BatchPlanStep planStep, final NodeRef node) {
         final List<BatchRemoveGroups> batchGroups = new ArrayList<>();
@@ -96,9 +98,11 @@ public class FlatBatchGroupAdapters {
     }
 
     /**
+     * Adapt flat batch update group.
      * @param planStep batch step containing changes of the same type
      * @param node     pointer for RPC routing
-     * @return input suitable for {@link org.opendaylight.yang.gen.v1.urn.opendaylight.groups.service.rev160315.SalGroupsBatchService#updateGroupsBatch(UpdateGroupsBatchInput)}
+     * @return input suitable for {@link org.opendaylight.yang.gen.v1.urn
+     * .opendaylight.groups.service.rev160315.SalGroupsBatchService#updateGroupsBatch(UpdateGroupsBatchInput)}
      */
     public static UpdateGroupsBatchInput adaptFlatBatchUpdateGroup(final BatchPlanStep planStep, final NodeRef node) {
         final List<BatchUpdateGroups> batchGroups = new ArrayList<>();
@@ -116,30 +120,23 @@ public class FlatBatchGroupAdapters {
     }
 
     /**
-     * @param chainInput here all partial results are collected (values + errors)
+     * Convert batch group result.
      * @param stepOffset offset of current batch plan step
-     * @return next chained result incorporating results of this step's batch
+     * @return converted {@link ProcessFlatBatchOutput} RPC result
      */
     @VisibleForTesting
     static <T extends BatchGroupOutputListGrouping> Function<RpcResult<T>, RpcResult<ProcessFlatBatchOutput>>
-    createBatchGroupChainingFunction(final RpcResult<ProcessFlatBatchOutput> chainInput,
-                                     final int stepOffset) {
+        convertBatchGroupResult(final int stepOffset) {
         return new Function<RpcResult<T>, RpcResult<ProcessFlatBatchOutput>>() {
-            @Nullable
             @Override
-            public RpcResult<ProcessFlatBatchOutput> apply(@Nullable final RpcResult<T> input) {
-                // create rpcResult builder honoring both success/failure of current input and chained input + join errors
-                final RpcResultBuilder<ProcessFlatBatchOutput> output = FlatBatchUtil.mergeRpcResults(chainInput, input);
-                // convert values and add to chain values
-                final ProcessFlatBatchOutputBuilder outputBuilder = new ProcessFlatBatchOutputBuilder(chainInput.getResult());
-                final List<BatchFailure> batchFailures = wrapBatchGroupFailuresForFlat(input, stepOffset);
-                // join values
-                if (outputBuilder.getBatchFailure() == null) {
-                    outputBuilder.setBatchFailure(new ArrayList<BatchFailure>(batchFailures.size()));
-                }
-                outputBuilder.getBatchFailure().addAll(batchFailures);
-
-                return output.withResult(outputBuilder.build()).build();
+            public RpcResult<ProcessFlatBatchOutput> apply(final RpcResult<T> input) {
+                List<BatchFailure> batchFailures = wrapBatchGroupFailuresForFlat(input, stepOffset);
+                ProcessFlatBatchOutputBuilder outputBuilder =
+                        new ProcessFlatBatchOutputBuilder().setBatchFailure(batchFailures);
+                return RpcResultBuilder.<ProcessFlatBatchOutput>status(input.isSuccessful())
+                                       .withRpcErrors(input.getErrors())
+                                       .withResult(outputBuilder.build())
+                                       .build();
             }
         };
     }
@@ -162,19 +159,18 @@ public class FlatBatchGroupAdapters {
     }
 
     /**
-     * shortcut for {@link #createBatchGroupChainingFunction(RpcResult, int)} with conversion {@link ListenableFuture}
+     * Shortcut for {@link #convertBatchGroupResult(int)} with conversion {@link ListenableFuture}.
      *
      * @param <T>                     exact type of batch flow output
-     * @param chainInput              here all partial results are collected (values + errors)
      * @param resultUpdateGroupFuture batch group rpc-result (add/remove/update)
      * @param currentOffset           offset of current batch plan step with respect to entire chain of steps
-     * @return next chained result incorporating results of this step's batch
+     * @return ListenableFuture with converted result {@link ProcessFlatBatchOutput}
      */
     public static <T extends BatchGroupOutputListGrouping> ListenableFuture<RpcResult<ProcessFlatBatchOutput>>
-    adaptGroupBatchFutureForChain(final RpcResult<ProcessFlatBatchOutput> chainInput,
-                                  final Future<RpcResult<T>> resultUpdateGroupFuture,
-                                  final int currentOffset) {
+        convertGroupBatchFutureForChain(final Future<RpcResult<T>> resultUpdateGroupFuture,
+                                    final int currentOffset) {
         return Futures.transform(JdkFutureAdapters.listenInPoolThread(resultUpdateGroupFuture),
-                FlatBatchGroupAdapters.<T>createBatchGroupChainingFunction(chainInput, currentOffset));
+                FlatBatchGroupAdapters.convertBatchGroupResult(currentOffset),
+                MoreExecutors.directExecutor());
     }
 }