/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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 org.apache.maven.di.impl;
  
  import java.lang.annotation.Annotation;
  
  import org.apache.maven.api.annotations.Nullable;
  
  public final class Utils {
  
      public static String getDisplayString(Class<? extends Annotation> annotationType, @Nullable Annotation annotation) {
          if (annotation == null) {
              return "@" + ReflectionUtils.getDisplayName(annotationType);
          }
          String typeName = annotationType.getName();
          String str = annotation.toString();
          return str.startsWith("@" + typeName)
                  ? "@" + ReflectionUtils.getDisplayName(annotationType) + str.substring(typeName.length() + 1)
                  : str;
      }
  
      public static String getDisplayString(Object object) {
          if (object instanceof Class && ((Class<?>) object).isAnnotation()) {
              //noinspection unchecked
              return getDisplayString((Class<? extends Annotation>) object, null);
          }
          if (object instanceof Annotation) {
              Annotation annotation = (Annotation) object;
              return getDisplayString(annotation.annotationType(), annotation);
          }
          return object.toString();
      }
  
      public static boolean isMarker(Class<? extends Annotation> annotationType) {
          return annotationType.getDeclaredMethods().length == 0;
      }
  }