content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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 com.alibaba.nacos.common.cache.decorators;
  
  import com.alibaba.nacos.common.cache.Cache;
  
  import java.util.concurrent.Callable;
  
  /**
   * A wrapper that thread-safe cache.
   * @author zzq
   * @date 2021/7/30
   */
  public class SynchronizedCache<K, V> implements Cache<K, V> {
      
      private final Cache<K, V> delegate;
      
      public SynchronizedCache(Cache<K, V> delegate) {
          this.delegate = delegate;
      }
      
      @Override
      public synchronized void put(K key, V val) {
          this.delegate.put(key, val);
      }
      
      @Override
      public synchronized V get(K key) {
          return this.delegate.get(key);
      }
      
      @Override
      public V get(K key, Callable<? extends V> call) throws Exception {
          return this.delegate.get(key, call);
      }
      
      @Override
      public synchronized V remove(K key) {
          return this.delegate.remove(key);
      }
      
      @Override
      public synchronized void clear() {
          this.delegate.clear();
      }
      
      @Override
      public synchronized int getSize() {
          return this.delegate.getSize();
      }
  }
  