| /* |
| * Copyright 2016-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 com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.Sets; |
| import org.onosproject.store.primitives.DefaultDistributedSet; |
| |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Set; |
| import java.util.concurrent.CompletableFuture; |
| |
| /** |
| * Test implementation of the distributed set. |
| */ |
| public final class TestDistributedSet<E> extends DistributedSetAdapter<E> { |
| private final List<SetEventListener<E>> listeners; |
| private final Set<E> set; |
| private final String setName; |
| |
| /** |
| * Public constructor. |
| * |
| * @param setName name to be assigned to this set |
| */ |
| public TestDistributedSet(String setName) { |
| set = new HashSet<>(); |
| listeners = new LinkedList<>(); |
| this.setName = setName; |
| } |
| |
| /** |
| * Notify all listeners of a set event. |
| * |
| * @param event the SetEvent |
| */ |
| private void notifyListeners(SetEvent<E> event) { |
| listeners.forEach( |
| listener -> listener.event(event) |
| ); |
| } |
| |
| @Override |
| public CompletableFuture<Void> addListener(SetEventListener<E> listener) { |
| listeners.add(listener); |
| return CompletableFuture.completedFuture(null); |
| } |
| |
| @Override |
| public CompletableFuture<Void> removeListener(SetEventListener<E> listener) { |
| listeners.remove(listener); |
| return CompletableFuture.completedFuture(null); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> add(E element) { |
| SetEvent<E> event = |
| new SetEvent<>(setName, SetEvent.Type.ADD, element); |
| notifyListeners(event); |
| return CompletableFuture.completedFuture(set.add(element)); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> remove(E element) { |
| SetEvent<E> event = |
| new SetEvent<>(setName, SetEvent.Type.REMOVE, element); |
| notifyListeners(event); |
| return CompletableFuture.completedFuture(set.remove(element)); |
| } |
| |
| @Override |
| public CompletableFuture<Integer> size() { |
| return CompletableFuture.completedFuture(set.size()); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> isEmpty() { |
| return CompletableFuture.completedFuture(set.isEmpty()); |
| } |
| |
| @Override |
| public CompletableFuture<Void> clear() { |
| removeAll(ImmutableSet.copyOf(set)); |
| return CompletableFuture.completedFuture(null); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> contains(E element) { |
| return CompletableFuture.completedFuture(set.contains(element)); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> addAll(Collection<? extends E> c) { |
| c.forEach(this::add); |
| return CompletableFuture.completedFuture(true); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> containsAll(Collection<? extends E> c) { |
| return CompletableFuture.completedFuture(set.containsAll(c)); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> retainAll(Collection<? extends E> c) { |
| Set notInSet2; |
| notInSet2 = Sets.difference(set, (Set<?>) c); |
| return removeAll(ImmutableSet.copyOf(notInSet2)); |
| } |
| |
| @Override |
| public CompletableFuture<Boolean> removeAll(Collection<? extends E> c) { |
| c.forEach(this::remove); |
| return CompletableFuture.completedFuture(true); |
| } |
| |
| @Override |
| public CompletableFuture<? extends Set<E>> getAsImmutableSet() { |
| return CompletableFuture.completedFuture(ImmutableSet.copyOf(set)); |
| } |
| |
| @Override |
| public String name() { |
| return this.setName; |
| } |
| |
| @Override |
| public DistributedSet<E> asDistributedSet() { |
| return new DefaultDistributedSet<>(this, 0); |
| } |
| |
| @Override |
| public DistributedSet<E> asDistributedSet(long timeoutMillis) { |
| return new DefaultDistributedSet<>(this, timeoutMillis); |
| } |
| |
| /** |
| * Returns a new Builder instance. |
| * |
| * @return Builder |
| **/ |
| public static Builder builder() { |
| return new Builder(); |
| } |
| |
| /** |
| * Builder constructor that instantiates a TestDistributedSet. |
| * |
| * @param <E> |
| */ |
| public static class Builder<E> extends DistributedSetBuilder<E> { |
| @Override |
| public AsyncDistributedSet<E> build() { |
| return new TestDistributedSet(name()); |
| } |
| } |
| } |