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
   *
   *      https://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.tools.ant.types.resources.selectors;
  
  import org.apache.tools.ant.types.Resource;
  
  /**
   * Majority ResourceSelector.
   * @since Ant 1.7
   */
  public class Majority extends ResourceSelectorContainer
      implements ResourceSelector {
  
      private boolean tie = true;
  
      /**
       * Default constructor.
       */
      public Majority() {
      }
  
      /**
       * Convenience constructor.
       * @param r the ResourceSelector[] to add.
       */
      public Majority(ResourceSelector... r) {
          super(r);
      }
  
      /**
       * Set whether ties are allowed.
       * @param b whether a tie is a pass.
       */
      public synchronized void setAllowtie(boolean b) {
          tie = b;
      }
  
      /**
       * Return true if this Resource is selected.
       * @param r the Resource to check.
       * @return whether the Resource was selected.
       */
      public synchronized boolean isSelected(Resource r) {
          int passed = 0;
          int failed = 0;
          int count = selectorCount();
          boolean even = count % 2 == 0;
          int threshold = count / 2;
  
          for (ResourceSelector rs : getResourceSelectors()) {
              if (rs.isSelected(r)) {
                  ++passed;
                  if (passed > threshold || (even && tie && passed == threshold)) {
                      return true;
                  }
              } else {
                  ++failed;
                  if (failed > threshold || (even && !tie && failed == threshold)) {
                      return false;
                  }
              }
          }
          //dummy
          return false;
      }
  
  }
  