Introduce ReadTransaction.exists()

[controller.git] / opendaylight / md-sal / sal-binding-broker / src / main / java / org / opendaylight / controller / md / sal / binding / impl / AbstractForwardedTransaction.java

diff --git a/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/AbstractForwardedTransaction.java b/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/AbstractForwardedTransaction.java
index ad8b60517cc2c4975a17e737c0a9ffa4215037b3..24b7ff03cee1557869508a0345e88f066485cd2b 100644 (file)
--- a/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/AbstractForwardedTransaction.java
+++ b/opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/AbstractForwardedTransaction.java
@@ -11,11 +11,12 @@ import com.google.common.base.Optional;
 import com.google.common.base.Preconditions;
 import com.google.common.util.concurrent.CheckedFuture;
 import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.MoreExecutors;
+import org.opendaylight.controller.md.sal.common.api.MappingCheckedFuture;
 import org.opendaylight.controller.md.sal.common.api.data.AsyncTransaction;
 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadTransaction;
-import org.opendaylight.mdsal.common.api.MappingCheckedFuture;
 import org.opendaylight.yangtools.concepts.Delegator;
 import org.opendaylight.yangtools.concepts.Identifiable;
 import org.opendaylight.yangtools.yang.binding.DataObject;
@@ -56,14 +57,24 @@ abstract class AbstractForwardedTransaction<T extends AsyncTransaction<YangInsta
         return codec;
     }
 
-    protected final <D extends DataObject> CheckedFuture<Optional<D>,ReadFailedException> doRead(
+    protected final <D extends DataObject> CheckedFuture<Optional<D>, ReadFailedException> doRead(
             final DOMDataReadTransaction readTx, final LogicalDatastoreType store,
             final InstanceIdentifier<D> path) {
         Preconditions.checkArgument(!path.isWildcarded(), "Invalid read of wildcarded path %s", path);
 
         return MappingCheckedFuture.create(
-                    Futures.transform(readTx.read(store, codec.toYangInstanceIdentifierBlocking(path)),
-                                      codec.deserializeFunction(path)),
-                    ReadFailedException.MAPPER);
+            Futures.transform(readTx.read(store, codec.toYangInstanceIdentifierBlocking(path)),
+                result -> Optional.fromJavaUtil(codec.deserializeFunction(path).apply(result.toJavaUtil())),
+                MoreExecutors.directExecutor()),
+            ReadFailedException.MAPPER);
+    }
+
+    protected final CheckedFuture<Boolean, ReadFailedException> doExists(
+            final DOMDataReadTransaction readTx, final LogicalDatastoreType store,
+            final InstanceIdentifier<?> path) {
+        Preconditions.checkArgument(!path.isWildcarded(), "Invalid read of wildcarded path %s", path);
+
+        return MappingCheckedFuture.create(readTx.exists(store, codec.toYangInstanceIdentifierBlocking(path)),
+            ReadFailedException.MAPPER);
     }
 }