br.com.objectos.ui.html.ProtoNaming Maven / Gradle / Ivy

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/*
 * Copyright 2015 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.ui.html;

import br.com.objectos.way.pojo.Pojo;
import br.com.objectos.way.testable.Testable;
import br.com.objectos.ui.html.annotation.ElementSpec;
import br.com.objectos.way.code.TypeInfo;

import com.squareup.javapoet.ClassName;
import com.squareup.javapoet.JavaFile;
import com.squareup.javapoet.ParameterizedTypeName;
import com.squareup.javapoet.TypeName;
import com.squareup.javapoet.TypeSpec;
import com.squareup.javapoet.TypeVariableName;

/**
 * @author [email protected] (Marcio Endo)
 */
@Pojo
abstract class ProtoNaming implements Testable {

  abstract ClassName elementClassName();
  abstract TypeVariableName typeVariableName();
  abstract TypeVariableName protoTypeVariableName();
  abstract TypeName superclassTypeName();

  ProtoNaming() {
  }

  public static ProtoNamingBuilder builder() {
    return new ProtoNamingBuilderPojo();
  }

  public static ProtoNaming of(TypeInfo typeInfo) {
    ClassName className = typeInfo.className();
    ClassName elementClassName = typeInfo.interfaceTypeInfoAnnotatedWith(ElementSpec.class)
        .flatMap(info -> info.annotationInfo(br.com.objectos.ui.html.annotation.ClassName.class))
        .flatMap(info -> info.stringValue("value"))
        .map(s -> className.peerClass(s))
        .get();
    TypeVariableName typeVariableName = TypeVariableName.get("E");
    return ProtoNaming.builder()
        .elementClassName(elementClassName)
        .typeVariableName(typeVariableName)
        .protoTypeVariableName(TypeVariableName.get("E", Element.class))
        .superclassTypeName(ParameterizedTypeName.get(elementClassName, typeVariableName))
        .build();
  }

  public JavaFile generate(TypeSpec type) {
    String packageName = elementClassName().packageName();
    return JavaFile.builder(packageName, type)
        .skipJavaLangImports(true)
        .build();
  }

}