/**
   * Parse type variables for generics
   *
   * @param variables
   * @return
   */
  protected static TypeVar[] ParseTypeVariables(TypeVariable[] variables, ParamTag[] tags) {
    TypeVar[] vars = null;

    if (variables != null && variables.length > 0) {
      ArrayList<TypeVar> varsList = new ArrayList<TypeVar>();

      for (TypeVariable variable : variables) {
        TypeVar var = new TypeVar();
        var.name = variable.typeName();
        Type[] bounds = variable.bounds();
        if (bounds != null && bounds.length > 0) {
          ArrayList<String> list = new ArrayList<String>();

          for (Type bound : bounds) {
            list.add(bound.qualifiedTypeName());
          }

          var.bounds = list.toArray(new String[] {});
        }
        for (ParamTag tag : tags)
          if (tag.parameterName().equals(var.name)) var.comment = tag.parameterComment();

        varsList.add(var);
      }

      vars = varsList.toArray(new TypeVar[] {});
    }

    return vars;
  }
 /**
  * Parses a type definition
  *
  * @param type
  * @return
  */
 protected static TypeInfo ParseType(Type type) {
   TypeInfo typeInfo = new TypeInfo();
   typeInfo.qualifiedName = type.qualifiedTypeName();
   typeInfo.dimension = type.dimension();
   typeInfo.wildcard = ParseWildCard(type.asWildcardType());
   typeInfo.generics = ParseGenerics(type.asParameterizedType());
   return typeInfo;
 }
  /**
   * Determinse if a specified class definition is a Annotation
   *
   * @param classDoc
   * @return
   */
  protected static boolean isAnnotation(ClassDoc classDoc) {
    boolean isAnnotation = false;
    if (classDoc != null) {
      Type[] types = classDoc.interfaceTypes();
      if (types != null) {
        for (Type type : types) {
          isAnnotation =
              0
                  == type.qualifiedTypeName()
                      .compareTo(java.lang.annotation.Annotation.class.getName());
          if (isAnnotation) {
            break;
          }
        }
      }
    }

    return isAnnotation;
  }
  /**
   * Parses the enum type definition
   *
   * @param docClass
   * @return
   */
  protected static Enum ParseEnum(ClassDoc docClass) {
    assert (docClass != null);

    Enum xmlEnum = new Enum();

    xmlEnum.name = docClass.name();
    xmlEnum.qualifiedName = docClass.qualifiedName();
    xmlEnum.comment = docClass.commentText();
    xmlEnum.isIncluded = docClass.isIncluded();
    xmlEnum.scope = DetermineScope(docClass);
    Type superClassType = docClass.superclassType();
    if (superClassType != null) {
      xmlEnum.superClass = superClassType.qualifiedTypeName();
    }

    Type[] interfaces = docClass.interfaceTypes();

    ArrayList<String> interfaceTypeNames = new ArrayList<String>();
    if (interfaces != null && interfaces.length > 0) {
      for (Type interfaceType : interfaces) {
        interfaceTypeNames.add(interfaceType.qualifiedTypeName());
      }
    }

    xmlEnum.extendedFrom = interfaceTypeNames.toArray(new String[] {});

    FieldDoc[] fields = docClass.enumConstants();

    if (fields != null && fields.length > 0) {
      ArrayList<EnumField> fieldList = new ArrayList<EnumField>();

      for (FieldDoc field : fields) {
        fieldList.add(ParseEnumField(field));
      }

      xmlEnum.fields = fieldList.toArray(new EnumField[] {});
    }

    xmlEnum.annotationInstances =
        ParseAnnotationInstances(docClass.annotations(), docClass.qualifiedName());
    return xmlEnum;
  }
  /**
   * Parses an interface type definition
   *
   * @param docClass
   * @return
   */
  protected static Interface ParseInterface(ClassDoc docClass) {
    assert (docClass != null);

    Interface xmlInterface = new Interface();

    xmlInterface.name = docClass.name();
    xmlInterface.qualifiedName = docClass.qualifiedName();
    xmlInterface.comment = docClass.commentText();
    xmlInterface.isIncluded = docClass.isIncluded();
    xmlInterface.scope = DetermineScope(docClass);
    xmlInterface.typeVariables =
        ParseTypeVariables(docClass.typeParameters(), docClass.typeParamTags());

    Type[] interfaces = docClass.interfaceTypes();

    ArrayList<String> interfaceTypeNames = new ArrayList<String>();
    if (interfaces != null && interfaces.length > 0) {
      for (Type interfaceType : interfaces) {
        interfaceTypeNames.add(interfaceType.qualifiedTypeName());
      }

      xmlInterface.interfaces = interfaceTypeNames.toArray(new String[] {});
    }

    MethodDoc[] methods = docClass.methods();

    if (methods != null && methods.length > 0) {
      ArrayList<Method> methodList = new ArrayList<Method>();

      for (MethodDoc method : methods) {
        methodList.add(ParseMethod(method));
      }

      xmlInterface.methods = methodList.toArray(new Method[] {});
    } else {
      log.debug("No methods in interface: " + docClass.name());
    }

    xmlInterface.annotationInstances =
        ParseAnnotationInstances(docClass.annotations(), docClass.qualifiedName());
    return xmlInterface;
  }
  /**
   * Parses annotation instances from the javadoc annotation instance type
   *
   * @param annotationDocs Annotations decorated on some type
   * @return Serializable representation of annotations
   */
  protected static AnnotationInstance[] ParseAnnotationInstances(
      AnnotationDesc[] annotationDocs, String origin) {
    AnnotationInstance[] annotations = null;

    if (annotationDocs != null && annotationDocs.length > 0) {
      ArrayList<AnnotationInstance> list = new ArrayList<AnnotationInstance>();

      for (AnnotationDesc annot : annotationDocs) {
        AnnotationInstance instance = new AnnotationInstance();

        AnnotationTypeDoc annotTypeInfo = null;
        try {
          annotTypeInfo = annot.annotationType();
          instance.name = annot.annotationType().name();
          instance.qualifiedName = annot.annotationType().qualifiedTypeName();

        } catch (ClassCastException castException) {
          log.error("Unable to obtain type data about an annotation found on: " + origin);
          log.error("Add to the -cp parameter the class/jar that defines this annotation.");
          instance.name = null;
          instance.qualifiedName = null;
        }

        AnnotationDesc.ElementValuePair[] arguments = annot.elementValues();
        if (arguments != null && arguments.length > 0) {
          ArrayList<AnnotationArgument> argumentList = new ArrayList<AnnotationArgument>();

          for (AnnotationDesc.ElementValuePair pair : arguments) {
            AnnotationArgument annotationArgument = new AnnotationArgument();
            annotationArgument.name = pair.element().name();

            Type annotationArgumentType = pair.element().returnType();
            annotationArgument.type = annotationArgumentType.qualifiedTypeName();
            annotationArgument.isPrimitive = annotationArgumentType.isPrimitive();
            annotationArgument.isArray = annotationArgumentType.dimension().length() > 0;

            Object objValue = pair.value().value();
            if (objValue instanceof AnnotationValue[]) {
              AnnotationValue[] realValues = (AnnotationValue[]) objValue;
              String[] values = new String[realValues.length];

              for (int i = 0; i < realValues.length; i++) {
                values[i] = realValues[i].value().toString();
              }
              annotationArgument.value = values;
            } else if (objValue instanceof Number) {
              Number number = (Number) objValue;
              annotationArgument.value = new String[] {number.toString()};
            } else if (objValue instanceof Character) {
              Character character = (Character) objValue;
              annotationArgument.value = new String[] {character.toString()};
            } else if (objValue instanceof Boolean) {
              Boolean booleanValue = (Boolean) objValue;
              annotationArgument.value = new String[] {booleanValue.toString()};
            } else if (objValue instanceof String) {
              String stringValue = (String) objValue;
              annotationArgument.value = new String[] {stringValue};
            } else if (objValue instanceof FieldDoc) {
              FieldDoc field = (FieldDoc) objValue;
              annotationArgument.value = new String[] {field.name()};
            } else if (objValue instanceof ClassDoc) {
              ClassDoc classDoc = (ClassDoc) objValue;
              annotationArgument.value = new String[] {classDoc.qualifiedTypeName()};
            }
            argumentList.add(annotationArgument);
          }

          instance.arguments = argumentList.toArray(new AnnotationArgument[] {});
        }

        list.add(instance);
      }

      annotations = list.toArray(new AnnotationInstance[] {});
    }

    return annotations;
  }