| /** |
| * 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.apache.aurora.common.stats; |
| |
| import com.google.common.base.Preconditions; |
| |
| /** |
| * A convenience class to wrap a {@link RecordingStat}. |
| * |
| * @author William Farner |
| */ |
| class RecordingStatImpl<T extends Number> implements RecordingStat<T> { |
| private final Stat<T> recorded; |
| private final String name; |
| |
| public RecordingStatImpl(Stat<T> recorded) { |
| this.recorded = Preconditions.checkNotNull(recorded); |
| this.name = Stats.validateName(recorded.getName()); |
| } |
| |
| @Override |
| public String getName() { |
| return name; |
| } |
| |
| @Override |
| public T sample() { |
| return read(); |
| } |
| |
| @Override |
| public T read() { |
| return recorded.read(); |
| } |
| } |