| /* |
| * 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 freemarker.ext.beans; |
| |
| import java.lang.reflect.Method; |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import freemarker.template.Configuration; |
| import freemarker.template.Version; |
| |
| /** |
| * A hack to keep some unit tests producing exactly the same results on Java 8 as on Java 5-7, by hiding members |
| * added after Java 7. |
| */ |
| public class Java7MembersOnlyBeansWrapper extends BeansWrapper { |
| |
| private static final Set<String> POST_JAVA_7_MAP_METHODS = newHashSet( |
| "compute", "computeIfAbsent", "computeIfPresent", |
| "forEach", "getOrDefault", "merge", "putIfAbsent", "replace", "replaceAll"); |
| |
| private static final Set<String> POST_JAVA_7_ITERABLE_METHODS = newHashSet("forEach"); |
| private static final Set<String> POST_JAVA_7_COLLECTION_METHODS = newHashSet("parallelStream", "removeIf", "stream"); |
| private static final Set<String> POST_JAVA_7_LIST_METHODS = newHashSet("sort", "spliterator"); |
| |
| MethodAppearanceFineTuner POST_JAVA_7_FILTER = new MethodAppearanceFineTuner() { |
| |
| public void process(MethodAppearanceDecisionInput in, MethodAppearanceDecision out) { |
| Method m = in.getMethod(); |
| Class declCl = m.getDeclaringClass(); |
| if (Map.class.isAssignableFrom(declCl)) { |
| if (POST_JAVA_7_MAP_METHODS.contains(m.getName())) { |
| hideMember(out); |
| return; |
| } |
| } |
| if (Iterable.class.isAssignableFrom(declCl)) { |
| if (POST_JAVA_7_ITERABLE_METHODS.contains(m.getName())) { |
| hideMember(out); |
| return; |
| } |
| } |
| if (Collection.class.isAssignableFrom(declCl)) { |
| if (POST_JAVA_7_COLLECTION_METHODS.contains(m.getName())) { |
| hideMember(out); |
| return; |
| } |
| } |
| if (List.class.isAssignableFrom(declCl)) { |
| if (POST_JAVA_7_LIST_METHODS.contains(m.getName())) { |
| hideMember(out); |
| return; |
| } |
| } |
| } |
| |
| private void hideMember(MethodAppearanceDecision out) { |
| out.setExposeMethodAs(null); |
| out.setExposeAsProperty(null); |
| } |
| |
| }; |
| |
| public Java7MembersOnlyBeansWrapper(Version version) { |
| super(version); |
| setMethodAppearanceFineTuner(POST_JAVA_7_FILTER); |
| } |
| |
| private static <T> Set<T> newHashSet(T... items) { |
| HashSet<T> r = new HashSet<>(); |
| for (T item : items) { |
| r.add(item); |
| } |
| return r; |
| } |
| |
| public Java7MembersOnlyBeansWrapper() { |
| this(Configuration.DEFAULT_INCOMPATIBLE_IMPROVEMENTS); |
| } |
| |
| } |