| /* |
| * Copyright 2016 The Bazel Authors. All rights reserved. |
| * |
| * 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 com.google.idea.blaze.base.model.blaze.deepequalstester; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import com.google.common.collect.Lists; |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.lang.reflect.Field; |
| import java.util.List; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** Utilities for deep equals testing. */ |
| @VisibleForTesting |
| public final class DeepEqualsTesterUtil { |
| public static List<Field> getAllFields(Class<?> clazz) { |
| List<Field> fields = Lists.newArrayList(); |
| |
| Field[] declaredFields = clazz.getDeclaredFields(); |
| for (Field field : declaredFields) { |
| fields.add(field); |
| } |
| |
| Class<?> superclass = clazz.getSuperclass(); |
| if (superclass != null) { |
| fields.addAll(getAllFields(superclass)); |
| } |
| return fields; |
| } |
| |
| public static Class getClass(Class declaredClass, Object o) { |
| if (o == null) { |
| return declaredClass; |
| } |
| // The two classes *should* be the same in this case, but the class from o.getClass won't |
| // return true from isPrimitive |
| if (declaredClass.isPrimitive()) { |
| return declaredClass; |
| } |
| return o.getClass(); |
| } |
| |
| /** Do a deep clone of an object using reflection */ |
| public static Object cloneWithSerialization(Object o) { |
| if (o == null) { |
| return null; |
| } |
| |
| try { |
| ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); |
| ObjectOutputStream objOut = new ObjectOutputStream(outputStream); |
| objOut.writeObject(o); |
| ByteArrayInputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray()); |
| ObjectInputStream objIn = new ObjectInputStream(inputStream); |
| return objIn.readObject(); |
| } catch (Exception e) { |
| return null; |
| } |
| } |
| |
| public static boolean isSubclassOf( |
| @Nullable Class<?> possibleSubClass, @NotNull Class<?> possibleSuperClass) { |
| if (possibleSubClass == null) { |
| return false; |
| } |
| |
| if (possibleSubClass.equals(possibleSuperClass)) { |
| return true; |
| } |
| |
| if (possibleSubClass.equals(Object.class)) { |
| return false; |
| } |
| |
| Class<?>[] interfaces = possibleSubClass.getInterfaces(); |
| for (Class<?> interfaze : interfaces) { |
| if (interfaze.equals(possibleSuperClass)) { |
| return true; |
| } |
| } |
| |
| return isSubclassOf(possibleSubClass.getSuperclass(), possibleSuperClass); |
| } |
| } |