| /* |
| * Copyright 2013-present Facebook, Inc. |
| * |
| * 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 com.facebook.buck.rules.coercer; |
| |
| import com.facebook.buck.io.ProjectFilesystem; |
| import com.facebook.buck.parser.BuildTargetParser; |
| import com.google.common.base.Optional; |
| import com.google.common.collect.ImmutableSet; |
| |
| import java.nio.file.Path; |
| |
| public class SetTypeCoercer<T> extends CollectionTypeCoercer<ImmutableSet<T>, T> { |
| SetTypeCoercer(TypeCoercer<T> elementTypeCoercer) { |
| super(elementTypeCoercer); |
| } |
| |
| @SuppressWarnings("unchecked") |
| @Override |
| public Class<ImmutableSet<T>> getOutputClass() { |
| return (Class<ImmutableSet<T>>) (Class<?>) ImmutableSet.class; |
| } |
| |
| @Override |
| public Optional<ImmutableSet<T>> getOptionalValue() { |
| return Optional.of(ImmutableSet.<T>of()); |
| } |
| |
| @Override |
| public ImmutableSet<T> coerce( |
| BuildTargetParser buildTargetParser, |
| ProjectFilesystem filesystem, |
| Path pathRelativeToProjectRoot, |
| Object object) |
| throws CoerceFailedException { |
| ImmutableSet.Builder<T> builder = ImmutableSet.builder(); |
| fill( |
| buildTargetParser, |
| filesystem, |
| pathRelativeToProjectRoot, |
| builder, |
| object); |
| return builder.build(); |
| } |
| } |