content: package net.sf.expectit.ant.matcher;
  
  /*
   * #%L
   * ExpectIt
   * %%
   * Copyright (C) 2014 Alexey Gavrilov and contributors
   * %%
   * Licensed 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.
   * #L%
   */
  
  import java.util.ArrayList;
  import java.util.List;
  import net.sf.expectit.MultiResult;
  import net.sf.expectit.Result;
  import net.sf.expectit.matcher.Matcher;
  
  /**
   * An abstract base element that represents a composite matcher.
   */
  abstract class AbstractMultiMatcherElement extends AbstractMatcherElement<MultiResult> {
      private final List<AbstractMatcherElement<Result>> tasks = new
              ArrayList<AbstractMatcherElement<Result>>();
  
      /**
       * Adds a child matcher element.
       *
       * @param matcherTask the matcher element
       */
      public void add(AbstractMatcherElement<Result> matcherTask) {
          tasks.add(matcherTask);
      }
  
      /**
       * {@inheritDoc}
       * <p/>
       * In addition, this method exports the children results. They are exported using their
       * {@code resultPrefix}, and
       * via shortcut {@code prefix + "." + &lt;number&gt;}, where the number here is the result
       * index.
       *
       * @param prefix the property prefix
       * @param result the result
       */
      @Override
      protected void exportSuccessfulResult(String prefix, MultiResult result) {
          super.exportSuccessfulResult(prefix, result);
          for (int i = 0; i < tasks.size(); i++) {
              AbstractMatcherElement<Result> t = tasks.get(i);
              t.exportSuccessfulResult(t.getResultPrefix(), result.getResults().get(i));
              t.exportSuccessfulResult(prefix + "." + i, result.getResults().get(i));
          }
      }
  
      /**
       * Creates and return all the children matchers.
       *
       * @return matcher array
       */
      protected Matcher<?>[] getMatchers() {
          Matcher<?>[] matchers = new Matcher<?>[tasks.size()];
          for (int i = 0; i < matchers.length; i++) {
              matchers[i] = tasks.get(i).createMatcher();
          }
          return matchers;
      }
  }
  