/*
    * 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 org.apache.maven.surefire.group.match;
  
  /**
   * Inverse group matcher.
   */
  public class InverseGroupMatcher implements GroupMatcher {
  
      private final GroupMatcher matcher;
  
      public InverseGroupMatcher(GroupMatcher matcher) {
          this.matcher = matcher;
      }
  
      @Override
      public boolean enabled(Class<?>... cats) {
          return cats == null || !matcher.enabled(cats);
      }
  
      @Override
      public boolean enabled(String... cats) {
          return cats == null || !matcher.enabled(cats);
      }
  
      @Override
      public String toString() {
          return "NOT " + matcher;
      }
  
      @Override
      public int hashCode() {
          final int prime = 31;
          int result = 1;
          result = prime * result + (matcher == null ? 0 : matcher.hashCode());
          return result;
      }
  
      @Override
      public boolean equals(Object obj) {
          if (this == obj) {
              return true;
          }
  
          if (obj == null || getClass() != obj.getClass()) {
              return false;
          }
          InverseGroupMatcher other = (InverseGroupMatcher) obj;
          if (matcher == null) {
              if (other.matcher != null) {
                  return false;
              }
          } else if (!matcher.equals(other.matcher)) {
              return false;
          }
          return true;
      }
  
      @Override
      public void loadGroupClasses(ClassLoader cloader) {
          matcher.loadGroupClasses(cloader);
      }
  }