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Diffstat (limited to 'framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/DefaultConsistentMap.java')
| -rw-r--r-- | framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/DefaultConsistentMap.java | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/DefaultConsistentMap.java b/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/DefaultConsistentMap.java new file mode 100644 index 00000000..6f7b5487 --- /dev/null +++ b/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/DefaultConsistentMap.java @@ -0,0 +1,204 @@ +/* + * Copyright 2015 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.consistent.impl; + +import java.util.Collection; +import java.util.Map; +import java.util.Map.Entry; +import java.util.concurrent.CompletableFuture; +import java.util.concurrent.ExecutionException; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.TimeoutException; +import java.util.function.BiFunction; +import java.util.function.Function; +import java.util.function.Predicate; +import java.util.Set; + +import org.onosproject.store.service.ConsistentMap; +import org.onosproject.store.service.ConsistentMapException; +import org.onosproject.store.service.MapEventListener; +import org.onosproject.store.service.Versioned; + +/** + * ConsistentMap implementation that is backed by a Raft consensus + * based database. + * + * @param <K> type of key. + * @param <V> type of value. + */ +public class DefaultConsistentMap<K, V> implements ConsistentMap<K, V> { + + private static final int OPERATION_TIMEOUT_MILLIS = 5000; + + private final DefaultAsyncConsistentMap<K, V> asyncMap; + private Map<K, V> javaMap; + + public String name() { + return asyncMap.name(); + } + + public DefaultConsistentMap(DefaultAsyncConsistentMap<K, V> asyncMap) { + this.asyncMap = asyncMap; + } + + @Override + public int size() { + return complete(asyncMap.size()); + } + + @Override + public boolean isEmpty() { + return complete(asyncMap.isEmpty()); + } + + @Override + public boolean containsKey(K key) { + return complete(asyncMap.containsKey(key)); + } + + @Override + public boolean containsValue(V value) { + return complete(asyncMap.containsValue(value)); + } + + @Override + public Versioned<V> get(K key) { + return complete(asyncMap.get(key)); + } + + @Override + public Versioned<V> computeIfAbsent(K key, + Function<? super K, ? extends V> mappingFunction) { + return complete(asyncMap.computeIfAbsent(key, mappingFunction)); + } + + @Override + public Versioned<V> computeIfPresent(K key, + BiFunction<? super K, ? super V, ? extends V> remappingFunction) { + return complete(asyncMap.computeIfPresent(key, remappingFunction)); + } + + @Override + public Versioned<V> compute(K key, + BiFunction<? super K, ? super V, ? extends V> remappingFunction) { + return complete(asyncMap.compute(key, remappingFunction)); + } + + @Override + public Versioned<V> computeIf(K key, + Predicate<? super V> condition, + BiFunction<? super K, ? super V, ? extends V> remappingFunction) { + return complete(asyncMap.computeIf(key, condition, remappingFunction)); + } + + @Override + public Versioned<V> put(K key, V value) { + return complete(asyncMap.put(key, value)); + } + + @Override + public Versioned<V> putAndGet(K key, V value) { + return complete(asyncMap.putAndGet(key, value)); + } + + @Override + public Versioned<V> remove(K key) { + return complete(asyncMap.remove(key)); + } + + @Override + public void clear() { + complete(asyncMap.clear()); + } + + @Override + public Set<K> keySet() { + return complete(asyncMap.keySet()); + } + + @Override + public Collection<Versioned<V>> values() { + return complete(asyncMap.values()); + } + + @Override + public Set<Entry<K, Versioned<V>>> entrySet() { + return complete(asyncMap.entrySet()); + } + + @Override + public Versioned<V> putIfAbsent(K key, V value) { + return complete(asyncMap.putIfAbsent(key, value)); + } + + @Override + public boolean remove(K key, V value) { + return complete(asyncMap.remove(key, value)); + } + + @Override + public boolean remove(K key, long version) { + return complete(asyncMap.remove(key, version)); + } + + @Override + public boolean replace(K key, V oldValue, V newValue) { + return complete(asyncMap.replace(key, oldValue, newValue)); + } + + @Override + public boolean replace(K key, long oldVersion, V newValue) { + return complete(asyncMap.replace(key, oldVersion, newValue)); + } + + private static <T> T complete(CompletableFuture<T> future) { + try { + return future.get(OPERATION_TIMEOUT_MILLIS, TimeUnit.MILLISECONDS); + } catch (InterruptedException e) { + Thread.currentThread().interrupt(); + throw new ConsistentMapException.Interrupted(); + } catch (TimeoutException e) { + throw new ConsistentMapException.Timeout(); + } catch (ExecutionException e) { + if (e.getCause() instanceof ConsistentMapException) { + throw (ConsistentMapException) e.getCause(); + } else { + throw new ConsistentMapException(e.getCause()); + } + } + } + + @Override + public void addListener(MapEventListener<K, V> listener) { + asyncMap.addListener(listener); + } + + @Override + public void removeListener(MapEventListener<K, V> listener) { + asyncMap.addListener(listener); + } + + @Override + public Map<K, V> asJavaMap() { + synchronized (this) { + if (javaMap == null) { + javaMap = new ConsistentMapBackedJavaMap<>(this); + } + } + return javaMap; + } +}
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