/**
* PermissionsEx
* Copyright (C) zml and PermissionsEx 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.
*/
package ninja.leaping.permissionsex.util;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import java.util.stream.Collector;
/**
* Additional collectors to complement {@link java.util.stream.Collectors} focusing on Guava collections
*/
public class GuavaCollectors {
public static <T> Collector<T, ImmutableList.Builder<T>, ImmutableList<T>> toImmutableList() {
return Collector.of(ImmutableList::builder, ImmutableList.Builder::add, (a, b) -> a.addAll(b.build()), ImmutableList.Builder::build);
}
public static <T> Collector<T, ImmutableSet.Builder<T>, ImmutableSet<T>> toImmutableSet() {
return Collector.of(ImmutableSet::builder, ImmutableSet.Builder::add, (a, b) -> a.addAll(b.build()), ImmutableSet.Builder::build);
}
}