content: package com.alibaba.fastjson2.filter;
  
  import java.util.Arrays;
  
  public class Labels {
      public static class DefaultLabelFilter
              implements LabelFilter {
          final String[] includes;
          final String[] excludes;
  
          public DefaultLabelFilter(String[] includes, String[] excludes) {
              if (includes != null) {
                  this.includes = new String[includes.length];
                  System.arraycopy(includes, 0, this.includes, 0, includes.length);
                  Arrays.sort(this.includes);
              } else {
                  this.includes = null;
              }
  
              if (excludes != null) {
                  this.excludes = new String[excludes.length];
                  System.arraycopy(excludes, 0, this.excludes, 0, excludes.length);
                  Arrays.sort(this.excludes);
              } else {
                  this.excludes = null;
              }
          }
  
          @Override
          public boolean apply(String label) {
              if (excludes != null) {
                  return Arrays.binarySearch(excludes, label) < 0;
              }
  
              return includes != null && Arrays.binarySearch(includes, label) >= 0;
          }
      }
  
      public static LabelFilter includes(String... views) {
          return new DefaultLabelFilter(views, null);
      }
  
      public static LabelFilter excludes(String... views) {
          return new DefaultLabelFilter(null, views);
      }
  }
  