content: /*
   *  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.causeway.core.metamodel.commons;
  
  import java.io.IOException;
  import java.lang.reflect.Method;
  import java.util.List;
  
  import org.apache.causeway.commons.internal._Constants;
  
  /**
   * Helpers to co-erce non-generic values into type-safe generics without
   * having to suppress compiler warnings all over the place.
   */
  public final class ObjectExtensions {
  
      private ObjectExtensions() {
      }
  
      @SuppressWarnings("unchecked")
      public static <T> T asT(final Object extendee) {
          return (T) extendee;
      }
  
      @SuppressWarnings("unchecked")
      public static <T> List<T> asListT(final Object extendee, final Class<T> castTo) {
          return (List<T>) extendee;
      }
  
      public static Object[] asArray(final Object extendee) {
          final Class<?> arrayType = extendee.getClass().getComponentType();
          if (!arrayType.isPrimitive()) {
              return (Object[]) extendee;
          }
          if (arrayType == char.class) {
              return ArrayExtensions.asCharToCharacterArray(extendee);
          } else {
              return ArrayExtensions.convertPrimitiveToObjectArray(extendee, arrayType);
          }
      }
  
      public static Method getMethod(final Object object, final String methodName, final Class<?>... parameterClass) throws NoSuchMethodException {
          return ClassExtensions.getMethod(object.getClass(), methodName, parameterClass);
      }
  
      public static Method getMethod(final Object object, final String methodName) throws NoSuchMethodException {
          return ClassExtensions.getMethod(object.getClass(), methodName, _Constants.emptyClasses);
      }
  
      public static String classBaseName(final Object forObject) {
          final String name = forObject.getClass().getName();
          return name.substring(name.lastIndexOf('.') + 1);
      }
  
      public static void appendToString(final Object extendee, final Appendable buf) {
          try {
              buf.append(classBaseName(extendee));
              buf.append('@');
              buf.append(Integer.toHexString(extendee.hashCode()));
          } catch (IOException iox) {
              throw new RuntimeException("A problem occurred while appending an object to an appendable", iox);
          }
      }
  
  }
  