text: /*
   * Copyright 2017 the original author or authors.
   *
   * 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.
   */
  
  package org.gradle.api.internal.provider;
  
  import com.google.common.collect.ImmutableCollection;
  import com.google.common.collect.ImmutableSet;
  import org.gradle.api.provider.Provider;
  import org.gradle.api.provider.SetProperty;
  import org.gradle.internal.Cast;
  
  import javax.annotation.Nullable;
  import java.util.Set;
  import java.util.function.Supplier;
  
  public class DefaultSetProperty<T> extends AbstractCollectionProperty<T, Set<T>> implements SetProperty<T> {
      private static final Supplier<ImmutableCollection.Builder<Object>> FACTORY = new Supplier<ImmutableCollection.Builder<Object>>() {
          @Override
          public ImmutableCollection.Builder<Object> get() {
              return ImmutableSet.builder();
          }
      };
      public DefaultSetProperty(PropertyHost host, Class<T> elementType) {
          super(host, Set.class, elementType, Cast.uncheckedNonnullCast(FACTORY));
      }
  
      @Override
      protected Set<T> emptyCollection() {
          return ImmutableSet.of();
      }
  
      @Override
      public Class<?> publicType() {
          return SetProperty.class;
      }
  
      @Override
      public int getFactoryId() {
          return ManagedFactories.SetPropertyManagedFactory.FACTORY_ID;
      }
  
      @Override
      public SetProperty<T> empty() {
          super.empty();
          return this;
      }
  
      @Override
      public SetProperty<T> value(@Nullable Iterable<? extends T> elements) {
          super.value(elements);
          return this;
      }
  
      @Override
      public SetProperty<T> value(Provider<? extends Iterable<? extends T>> provider) {
          super.value(provider);
          return this;
      }
  
      @Override
      public SetProperty<T> convention(Iterable<? extends T> elements) {
          super.convention(elements);
          return this;
      }
  
      @Override
      public SetProperty<T> convention(Provider<? extends Iterable<? extends T>> provider) {
          super.convention(provider);
          return this;
      }
  }
  