| /* |
| * 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.primitives; |
| |
| import com.google.common.base.Throwables; |
| import com.google.common.collect.Multiset; |
| import org.onosproject.store.service.AsyncConsistentMultimap; |
| import org.onosproject.store.service.AsyncIterator; |
| import org.onosproject.store.service.ConsistentMapException; |
| import org.onosproject.store.service.ConsistentMultimap; |
| import org.onosproject.store.service.MultimapEventListener; |
| import org.onosproject.store.service.Synchronous; |
| import org.onosproject.store.service.Versioned; |
| |
| import java.util.Collection; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| |
| /** |
| * Implementation of {@link ConsistentMultimap} providing synchronous access to |
| * {@link AsyncConsistentMultimap}. |
| */ |
| public class DefaultConsistentMultimap<K, V> |
| extends Synchronous<AsyncConsistentMultimap<K, V>> |
| implements ConsistentMultimap<K, V> { |
| |
| private final AsyncConsistentMultimap<K, V> asyncMultimap; |
| private final long operationTimeoutMillis; |
| |
| public DefaultConsistentMultimap( |
| AsyncConsistentMultimap<K, V> asyncMultimap, |
| long operationTimeoutMillis) { |
| super(asyncMultimap); |
| this.asyncMultimap = asyncMultimap; |
| this.operationTimeoutMillis = operationTimeoutMillis; |
| } |
| |
| @Override |
| public int size() { |
| return complete(asyncMultimap.size()); |
| } |
| |
| @Override |
| public boolean isEmpty() { |
| return complete(asyncMultimap.isEmpty()); |
| } |
| |
| @Override |
| public boolean containsKey(K key) { |
| return complete(asyncMultimap.containsKey(key)); |
| } |
| |
| @Override |
| public boolean containsValue(V value) { |
| return complete(asyncMultimap.containsValue(value)); |
| } |
| |
| @Override |
| public boolean containsEntry(K key, V value) { |
| return complete(asyncMultimap.containsEntry(key, value)); |
| } |
| |
| @Override |
| public boolean put(K key, V value) { |
| return complete(asyncMultimap.put(key, value)); |
| } |
| |
| @Override |
| public Versioned<Collection<? extends V>> putAndGet(K key, V value) { |
| return complete(asyncMultimap.putAndGet(key, value)); |
| } |
| |
| @Override |
| public boolean remove(K key, V value) { |
| return complete(asyncMultimap.remove(key, value)); |
| } |
| |
| @Override |
| public Versioned<Collection<? extends V>> removeAndGet(K key, V value) { |
| return complete(asyncMultimap.removeAndGet(key, value)); |
| } |
| |
| @Override |
| public boolean removeAll(K key, Collection<? extends V> values) { |
| return complete(asyncMultimap.removeAll(key, values)); |
| } |
| |
| @Override |
| public Versioned<Collection<? extends V>> removeAll(K key) { |
| return complete(asyncMultimap.removeAll(key)); |
| } |
| |
| @Override |
| public boolean putAll(K key, Collection<? extends V> values) { |
| return complete(asyncMultimap.putAll(key, values)); |
| } |
| |
| @Override |
| public Versioned<Collection<? extends V>> replaceValues( |
| K key, Collection<V> values) { |
| return complete(asyncMultimap.replaceValues(key, values)); |
| } |
| |
| @Override |
| public void clear() { |
| complete(asyncMultimap.clear()); |
| } |
| |
| @Override |
| public Versioned<Collection<? extends V>> get(K key) { |
| return complete(asyncMultimap.get(key)); |
| } |
| |
| @Override |
| public Set<K> keySet() { |
| return complete(asyncMultimap.keySet()); |
| } |
| |
| @Override |
| public Multiset<K> keys() { |
| return complete(asyncMultimap.keys()); |
| } |
| |
| @Override |
| public Multiset<V> values() { |
| return complete(asyncMultimap.values()); |
| } |
| |
| @Override |
| public Collection<Map.Entry<K, V>> entries() { |
| return complete(asyncMultimap.entries()); |
| } |
| |
| @Override |
| public Iterator<Map.Entry<K, V>> iterator() { |
| return new DefaultIterator<>(complete(asyncMultimap.iterator())); |
| } |
| |
| @Override |
| public Map<K, Collection<V>> asMap() { |
| throw new UnsupportedOperationException("This operation is not yet " + |
| "supported."); |
| //FIXME implement this when a new version of ConsistentMapBackedJavaMap is made for multimaps |
| } |
| |
| @Override |
| public void addListener(MultimapEventListener<K, V> listener, Executor executor) { |
| complete(asyncMultimap.addListener(listener, executor)); |
| } |
| |
| @Override |
| public void removeListener(MultimapEventListener<K, V> listener) { |
| complete(asyncMultimap.removeListener(listener)); |
| } |
| |
| private class DefaultIterator<K, V> implements Iterator<Map.Entry<K, V>> { |
| private final AsyncIterator<Map.Entry<K, V>> iterator; |
| |
| public DefaultIterator(AsyncIterator<Map.Entry<K, V>> iterator) { |
| this.iterator = iterator; |
| } |
| |
| @Override |
| public boolean hasNext() { |
| return complete(iterator.hasNext()); |
| } |
| |
| @Override |
| public Map.Entry<K, V> next() { |
| return complete(iterator.next()); |
| } |
| } |
| |
| private <T> T complete(CompletableFuture<T> future) { |
| try { |
| return future.get(operationTimeoutMillis, TimeUnit.MILLISECONDS); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| throw new ConsistentMapException.Interrupted(); |
| } catch (TimeoutException e) { |
| throw new ConsistentMapException.Timeout(); |
| } catch (ExecutionException e) { |
| Throwables.throwIfUnchecked(e.getCause()); |
| throw new ConsistentMapException(e.getCause()); |
| } |
| } |
| } |