[ONOS-6267] Support configurable Executors for primitives
- Support user-provided Executors in primitive builders
- Implement default per-partition per-primitive serial executor using a shared thread pool
- Implement Executor wrappers for all primitive types
Change-Id: I53acfb173a9b49a992a9a388983791d9735ed54a
diff --git a/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/ExecutingAsyncDocumentTree.java b/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/ExecutingAsyncDocumentTree.java
new file mode 100644
index 0000000..352ee7a
--- /dev/null
+++ b/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/ExecutingAsyncDocumentTree.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2017-present Open Networking Laboratory
+ *
+ * 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.primitives.impl;
+
+import java.util.Map;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.Executor;
+
+import com.google.common.collect.Maps;
+import org.onlab.util.Tools;
+import org.onosproject.store.service.AsyncDocumentTree;
+import org.onosproject.store.service.DocumentPath;
+import org.onosproject.store.service.DocumentTreeListener;
+import org.onosproject.store.service.Versioned;
+
+/**
+ * {@link AsyncDocumentTree} that executes asynchronous callbacks on a user provided
+ * {@link Executor}.
+ */
+public class ExecutingAsyncDocumentTree<V> extends ExecutingDistributedPrimitive implements AsyncDocumentTree<V> {
+ private final AsyncDocumentTree<V> delegateTree;
+ private final Executor executor;
+ private final Map<DocumentTreeListener<V>, DocumentTreeListener<V>> listenerMap = Maps.newConcurrentMap();
+
+ public ExecutingAsyncDocumentTree(AsyncDocumentTree<V> delegateTree, Executor executor) {
+ super(delegateTree, executor);
+ this.delegateTree = delegateTree;
+ this.executor = executor;
+ }
+
+ @Override
+ public DocumentPath root() {
+ return delegateTree.root();
+ }
+
+ @Override
+ public CompletableFuture<Map<String, Versioned<V>>> getChildren(DocumentPath path) {
+ return Tools.asyncFuture(delegateTree.getChildren(path), executor);
+ }
+
+ @Override
+ public CompletableFuture<Versioned<V>> get(DocumentPath path) {
+ return Tools.asyncFuture(delegateTree.get(path), executor);
+ }
+
+ @Override
+ public CompletableFuture<Versioned<V>> set(DocumentPath path, V value) {
+ return Tools.asyncFuture(delegateTree.set(path, value), executor);
+ }
+
+ @Override
+ public CompletableFuture<Boolean> create(DocumentPath path, V value) {
+ return Tools.asyncFuture(delegateTree.create(path, value), executor);
+ }
+
+ @Override
+ public CompletableFuture<Boolean> createRecursive(DocumentPath path, V value) {
+ return Tools.asyncFuture(delegateTree.createRecursive(path, value), executor);
+ }
+
+ @Override
+ public CompletableFuture<Boolean> replace(DocumentPath path, V newValue, long version) {
+ return Tools.asyncFuture(delegateTree.replace(path, newValue, version), executor);
+ }
+
+ @Override
+ public CompletableFuture<Boolean> replace(DocumentPath path, V newValue, V currentValue) {
+ return Tools.asyncFuture(delegateTree.replace(path, newValue, currentValue), executor);
+ }
+
+ @Override
+ public CompletableFuture<Versioned<V>> removeNode(DocumentPath path) {
+ return Tools.asyncFuture(delegateTree.removeNode(path), executor);
+ }
+
+ @Override
+ public CompletableFuture<Void> addListener(DocumentPath path, DocumentTreeListener<V> listener) {
+ DocumentTreeListener<V> wrappedListener = e -> executor.execute(() -> listener.event(e));
+ listenerMap.put(listener, wrappedListener);
+ return Tools.asyncFuture(delegateTree.addListener(path, wrappedListener), executor);
+ }
+
+ @Override
+ public CompletableFuture<Void> removeListener(DocumentTreeListener<V> listener) {
+ DocumentTreeListener<V> wrappedListener = listenerMap.remove(listener);
+ if (wrappedListener != null) {
+ return Tools.asyncFuture(delegateTree.removeListener(wrappedListener), executor);
+ }
+ return CompletableFuture.completedFuture(null);
+ }
+}