| /* |
| * 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.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 orderedExecutor; |
| private final Map<DocumentTreeListener<V>, DocumentTreeListener<V>> listenerMap = Maps.newConcurrentMap(); |
| |
| public ExecutingAsyncDocumentTree( |
| AsyncDocumentTree<V> delegateTree, Executor orderedExecutor, Executor threadPoolExecutor) { |
| super(delegateTree, orderedExecutor, threadPoolExecutor); |
| this.delegateTree = delegateTree; |
| this.orderedExecutor = orderedExecutor; |
| } |
| |
| @Override |
| public DocumentPath root() { |
| return delegateTree.root(); |
| } |
| |
| @Override |
| public CompletableFuture<Map<String, Versioned<V>>> getChildren(DocumentPath path) { |
| return asyncFuture(delegateTree.getChildren(path)); |
| } |
| |
| @Override |
| public CompletableFuture<Versioned<V>> get(DocumentPath path) { |
| return asyncFuture(delegateTree.get(path)); |
| } |
| |
| @Override |
| public CompletableFuture<Versioned<V>> set(DocumentPath path, V value) { |
| return asyncFuture(delegateTree.set(path, value)); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> create(DocumentPath path, V value) { |
| return asyncFuture(delegateTree.create(path, value)); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> createRecursive(DocumentPath path, V value) { |
| return asyncFuture(delegateTree.createRecursive(path, value)); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> replace(DocumentPath path, V newValue, long version) { |
| return asyncFuture(delegateTree.replace(path, newValue, version)); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> replace(DocumentPath path, V newValue, V currentValue) { |
| return asyncFuture(delegateTree.replace(path, newValue, currentValue)); |
| } |
| |
| @Override |
| public CompletableFuture<Versioned<V>> removeNode(DocumentPath path) { |
| return asyncFuture(delegateTree.removeNode(path)); |
| } |
| |
| @Override |
| public CompletableFuture<Void> addListener(DocumentPath path, DocumentTreeListener<V> listener) { |
| DocumentTreeListener<V> wrappedListener = e -> orderedExecutor.execute(() -> listener.event(e)); |
| listenerMap.put(listener, wrappedListener); |
| return asyncFuture(delegateTree.addListener(path, wrappedListener)); |
| } |
| |
| @Override |
| public CompletableFuture<Void> removeListener(DocumentTreeListener<V> listener) { |
| DocumentTreeListener<V> wrappedListener = listenerMap.remove(listener); |
| if (wrappedListener != null) { |
| return asyncFuture(delegateTree.removeListener(wrappedListener)); |
| } |
| return CompletableFuture.completedFuture(null); |
| } |
| } |