diff options
author | Ashlee Young <ashlee@onosfw.com> | 2015-09-09 22:15:21 -0700 |
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committer | Ashlee Young <ashlee@onosfw.com> | 2015-09-09 22:15:21 -0700 |
commit | 13d05bc8458758ee39cb829098241e89616717ee (patch) | |
tree | 22a4d1ce65f15952f07a3df5af4b462b4697cb3a /framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/UpdateResult.java | |
parent | 6139282e1e93c2322076de4b91b1c85d0bc4a8b3 (diff) |
ONOS checkin based on commit tag e796610b1f721d02f9b0e213cf6f7790c10ecd60
Change-Id: Ife8810491034fe7becdba75dda20de4267bd15cd
Diffstat (limited to 'framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/UpdateResult.java')
-rw-r--r-- | framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/UpdateResult.java | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/UpdateResult.java b/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/UpdateResult.java new file mode 100644 index 00000000..50b78dd4 --- /dev/null +++ b/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/UpdateResult.java @@ -0,0 +1,85 @@ +/* + * 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.function.Function; + +import org.onosproject.store.service.MapEvent; +import org.onosproject.store.service.Versioned; + +/** + * Result of a update operation. + * <p> + * Both old and new values are accessible along with a flag that indicates if the + * the value was updated. If flag is false, oldValue and newValue both + * point to the same unmodified value. + * @param <V> result type + */ +public class UpdateResult<K, V> { + + private final boolean updated; + private final String mapName; + private final K key; + private final Versioned<V> oldValue; + private final Versioned<V> newValue; + + public UpdateResult(boolean updated, String mapName, K key, Versioned<V> oldValue, Versioned<V> newValue) { + this.updated = updated; + this.mapName = mapName; + this.key = key; + this.oldValue = oldValue; + this.newValue = newValue; + } + + public boolean updated() { + return updated; + } + + public String mapName() { + return mapName; + } + + public K key() { + return key; + } + + public Versioned<V> oldValue() { + return oldValue; + } + + public Versioned<V> newValue() { + return newValue; + } + + public <K1, V1> UpdateResult<K1, V1> map(Function<K, K1> keyTransform, Function<V, V1> valueMapper) { + return new UpdateResult<>(updated, + mapName, + keyTransform.apply(key), + oldValue == null ? null : oldValue.map(valueMapper), + newValue == null ? null : newValue.map(valueMapper)); + } + + public MapEvent<K, V> toMapEvent() { + if (!updated) { + return null; + } else { + MapEvent.Type eventType = oldValue == null ? + MapEvent.Type.INSERT : newValue == null ? MapEvent.Type.REMOVE : MapEvent.Type.UPDATE; + Versioned<V> eventValue = eventType == MapEvent.Type.REMOVE ? oldValue : newValue; + return new MapEvent<>(mapName(), eventType, key(), eventValue); + } + } +}
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