br.com.objectos.code.RoundEnvironmentWrapper Maven / Gradle / Ivy

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/*
 * Copyright 2014 Objectos, Fábrica de Software LTDA.
 *
 * 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 br.com.objectos.code;

import java.lang.annotation.Annotation;
import java.util.Set;
import java.util.stream.Stream;

import javax.annotation.processing.ProcessingEnvironment;
import javax.annotation.processing.RoundEnvironment;
import javax.lang.model.element.Element;
import javax.lang.model.element.TypeElement;
import javax.lang.model.util.ElementFilter;

/**
 * @author [email protected] (Marcio Endo)
 */
public class RoundEnvironmentWrapper {

  private final ProcessingEnvironment processingEnv;
  private final RoundEnvironment roundEnv;

  public RoundEnvironmentWrapper(ProcessingEnvironment processingEnv, RoundEnvironment roundEnv) {
    this.processingEnv = processingEnv;
    this.roundEnv = roundEnv;
  }

  public static RoundEnvironmentWrapper wrapperOf(ProcessingEnvironment processingEnv, RoundEnvironment roundEnv) {
    return new RoundEnvironmentWrapper(processingEnv, roundEnv);
  }

  public static Stream typesInfoAnnotatedWith(
      ProcessingEnvironment processingEnv,
      RoundEnvironment roundEnv,
      Class annotationType) {
    return wrapperOf(processingEnv, roundEnv).typesInfoAnnotatedWith(annotationType);
  }

  public Stream typesAnnotatedWith(Class annotationType) {
    Set elementSet;
    elementSet = roundEnv.getElementsAnnotatedWith(annotationType);

    Set typeSet;
    typeSet = ElementFilter.typesIn(elementSet);

    return typeSet.stream();
  }

  public Stream typesInfoAnnotatedWith(Class annotationType) {
    final ProcessingEnvironmentWrapper processingEnvironmentWrapper;
    processingEnvironmentWrapper = ProcessingEnvironmentWrapper.wrapperOf(processingEnv);

    return typesAnnotatedWith(annotationType)
        .map(input -> TypeInfoTypeElement.wrap(processingEnvironmentWrapper, input));
  }

}