com.zuzi.adapter.Utils Maven / Gradle / Ivy

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package com.zuzi.adapter;

import java.util.List;
import javax.lang.model.element.Element;
import javax.lang.model.element.TypeElement;
import javax.lang.model.type.DeclaredType;
import javax.lang.model.type.TypeKind;
import javax.lang.model.type.TypeMirror;

/**
 *  @author liyi
 *  create at 2018/7/26
 **/
public class Utils {

  public static final String TYPE_BASEHOLDER = "com.zuzi.adapter.FastBaseHolder";

  public static boolean isSubtypeOfType(TypeMirror typeMirror, String otherType) {
    if (otherType.equals(typeMirror.toString())) {
      return true;
    }
    if (typeMirror.getKind() != TypeKind.DECLARED) {
      return false;
    }
    DeclaredType declaredType = (DeclaredType) typeMirror;
    List typeArguments = declaredType.getTypeArguments();
    if (typeArguments.size() > 0) {
      StringBuilder typeString = new StringBuilder(declaredType.asElement().toString());
      typeString.append('<');
      for (int i = 0; i < typeArguments.size(); i++) {
        if (i > 0) {
          typeString.append(',');
        }
        typeString.append('?');
      }
      typeString.append('>');

      if (typeString.toString().equals(otherType)) {
        return true;
      }
    }
    Element element = declaredType.asElement();
    if (!(element instanceof TypeElement)) {
      return false;
    }
    TypeElement typeElement = (TypeElement) element;
    TypeMirror superType = typeElement.getSuperclass();

    if (isSubtypeOfType(superType, otherType)) {
      return true;
    }
    return false;
  }
}