Store flows rules asynchronously via master in DistributedFlowRuleStore

Change-Id: I5e41a982204e395d2a1ac05017905069d61dc702
diff --git a/core/api/src/test/java/org/onosproject/store/service/TestAsyncDocumentTree.java b/core/api/src/test/java/org/onosproject/store/service/TestAsyncDocumentTree.java
new file mode 100644
index 0000000..f1d4fec
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/store/service/TestAsyncDocumentTree.java
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2017-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.store.service;
+
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+
+import org.onosproject.store.primitives.NodeUpdate;
+import org.onosproject.store.primitives.TransactionId;
+
+/**
+ * Test asynchronous document tree.
+ */
+public class TestAsyncDocumentTree<V> implements AsyncDocumentTree<V> {
+    private final DocumentTree<V> tree;
+
+    public TestAsyncDocumentTree(String name) {
+        this.tree = new TestDocumentTree<>(name);
+    }
+
+    @Override
+    public String name() {
+        return tree.name();
+    }
+
+    @Override
+    public DocumentPath root() {
+        return tree.root();
+    }
+
+    @Override
+    public CompletableFuture<Map<String, Versioned<V>>> getChildren(DocumentPath path) {
+        return CompletableFuture.completedFuture(tree.getChildren(path));
+    }
+
+    @Override
+    public CompletableFuture<Versioned<V>> get(DocumentPath path) {
+        return CompletableFuture.completedFuture(tree.get(path));
+    }
+
+    @Override
+    public CompletableFuture<Versioned<V>> set(DocumentPath path, V value) {
+        return CompletableFuture.completedFuture(tree.set(path, value));
+    }
+
+    @Override
+    public CompletableFuture<Boolean> create(DocumentPath path, V value) {
+        return CompletableFuture.completedFuture(tree.create(path, value));
+    }
+
+    @Override
+    public CompletableFuture<Boolean> createRecursive(DocumentPath path, V value) {
+        return CompletableFuture.completedFuture(tree.createRecursive(path, value));
+    }
+
+    @Override
+    public CompletableFuture<Boolean> replace(DocumentPath path, V newValue, long version) {
+        return CompletableFuture.completedFuture(tree.replace(path, newValue, version));
+    }
+
+    @Override
+    public CompletableFuture<Boolean> replace(DocumentPath path, V newValue, V currentValue) {
+        return CompletableFuture.completedFuture(tree.replace(path, newValue, currentValue));
+    }
+
+    @Override
+    public CompletableFuture<Versioned<V>> removeNode(DocumentPath path) {
+        return CompletableFuture.completedFuture(tree.removeNode(path));
+    }
+
+    @Override
+    public CompletableFuture<Void> addListener(DocumentPath path, DocumentTreeListener<V> listener) {
+        tree.addListener(path, listener);
+        return CompletableFuture.completedFuture(null);
+    }
+
+    @Override
+    public CompletableFuture<Void> removeListener(DocumentTreeListener<V> listener) {
+        tree.removeListener(listener);
+        return CompletableFuture.completedFuture(null);
+    }
+
+    @Override
+    public CompletableFuture<Version> begin(TransactionId transactionId) {
+        return null;
+    }
+
+    @Override
+    public CompletableFuture<Boolean> prepare(TransactionLog<NodeUpdate<V>> transactionLog) {
+        return null;
+    }
+
+    @Override
+    public CompletableFuture<Boolean> prepareAndCommit(TransactionLog<NodeUpdate<V>> transactionLog) {
+        return null;
+    }
+
+    @Override
+    public CompletableFuture<Void> commit(TransactionId transactionId) {
+        return null;
+    }
+
+    @Override
+    public CompletableFuture<Void> rollback(TransactionId transactionId) {
+        return null;
+    }
+
+    @Override
+    public DocumentTree<V> asDocumentTree() {
+        return tree;
+    }
+}