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Diffstat (limited to 'framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/AsyncCachingConsistentMap.java')
-rw-r--r--framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/AsyncCachingConsistentMap.java81
1 files changed, 0 insertions, 81 deletions
diff --git a/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/AsyncCachingConsistentMap.java b/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/AsyncCachingConsistentMap.java
deleted file mode 100644
index 92db5b44..00000000
--- a/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/AsyncCachingConsistentMap.java
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * 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.concurrent.CompletableFuture;
-
-import org.onosproject.core.ApplicationId;
-import org.onosproject.store.service.Serializer;
-import org.onosproject.store.service.Versioned;
-
-import com.google.common.cache.CacheBuilder;
-import com.google.common.cache.CacheLoader;
-import com.google.common.cache.LoadingCache;
-
-/**
- * Extension of {@link DefaultAsyncConsistentMap} that provides a weaker read consistency
- * guarantee in return for better read performance.
- * <p>
- * For read/write operations that are local to a node this map implementation provides
- * guarantees similar to a ConsistentMap. However for read/write operations executed
- * across multiple nodes this implementation only provides eventual consistency.
- *
- * @param <K> key type
- * @param <V> value type
- */
-public class AsyncCachingConsistentMap<K, V> extends DefaultAsyncConsistentMap<K, V> {
-
- private final LoadingCache<K, CompletableFuture<Versioned<V>>> cache =
- CacheBuilder.newBuilder()
- .maximumSize(10000) // TODO: make configurable
- .build(new CacheLoader<K, CompletableFuture<Versioned<V>>>() {
- @Override
- public CompletableFuture<Versioned<V>> load(K key)
- throws Exception {
- return AsyncCachingConsistentMap.super.get(key);
- }
- });
-
- public AsyncCachingConsistentMap(String name,
- ApplicationId applicationId,
- Database database,
- Serializer serializer,
- boolean readOnly,
- boolean purgeOnUninstall,
- boolean meteringEnabled) {
- super(name, applicationId, database, serializer, readOnly, purgeOnUninstall, meteringEnabled);
- addListener(event -> cache.invalidate(event.key()));
- }
-
- @Override
- public CompletableFuture<Versioned<V>> get(K key) {
- CompletableFuture<Versioned<V>> cachedValue = cache.getIfPresent(key);
- if (cachedValue != null) {
- if (cachedValue.isCompletedExceptionally()) {
- cache.invalidate(key);
- } else {
- return cachedValue;
- }
- }
- return cache.getUnchecked(key);
- }
-
- @Override
- protected void beforeUpdate(K key) {
- super.beforeUpdate(key);
- cache.invalidate(key);
- }
-} \ No newline at end of file