content: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.jstorm.common.metric.old;
  
  import com.alibaba.jstorm.common.metric.old.window.Metric;
  
  import java.io.Serializable;
  
  public interface MetricFilter extends Serializable {
      /**
       * Matches all metrics, regardless of type or name.
       */
      MetricFilter ALL = new MetricFilter() {
          private static final long serialVersionUID = 7089987006352295530L;
  
          @Override
          public boolean matches(String name, Metric metric) {
              return true;
          }
      };
  
      /**
       * Returns {@code true} if the metric matches the filter; {@code false} otherwise.
       * 
       * @param name the metric's name
       * @param metric the metric
       * @return {@code true} if the metric matches the filter
       */
      boolean matches(String name, Metric metric);
  }
  