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.metrics.common.filter;
  
  import com.alibaba.metrics.Metric;
  import com.alibaba.metrics.MetricFilter;
  import com.alibaba.metrics.MetricName;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
  
  public class CompositeMetricFilter implements MetricFilter {
  
      MetricFilter[] filters;
  
      /**
       * 如果包含 {@link MetricFilter#ALL} 则直接丢弃，减少一次无谓的判断
       * @param filters
       */
      public CompositeMetricFilter(MetricFilter... filters) {
          List<MetricFilter> filterList = new ArrayList<MetricFilter>(Arrays.asList(filters));
          filterList.remove(MetricFilter.ALL);
          if (!filterList.isEmpty()) {
              this.filters = filterList.toArray(new MetricFilter[filterList.size()]);
          }
      }
  
      @Override
      public boolean matches(MetricName name, Metric metric) {
          if (filters != null) {
              for (MetricFilter filter : filters) {
                  if (!filter.matches(name, metric)) {
                      return false;
                  }
              }
          }
          return true;
      }
  
  
  }
  