com.github.robtimus.obfuscation.jackson.databind.ObfuscatedBeanDeserializerModifier Maven / Gradle / Ivy

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/*
 * ObfuscatedBeanDeserializerModifier.java
 * Copyright 2020 Rob Spoor
 *
 * 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.github.robtimus.obfuscation.jackson.databind;

import java.util.Collection;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import com.fasterxml.jackson.databind.BeanDescription;
import com.fasterxml.jackson.databind.DeserializationConfig;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.deser.BeanDeserializerBuilder;
import com.fasterxml.jackson.databind.deser.BeanDeserializerModifier;
import com.fasterxml.jackson.databind.deser.SettableBeanProperty;
import com.github.robtimus.obfuscation.Obfuscated;
import com.github.robtimus.obfuscation.Obfuscator;
import com.github.robtimus.obfuscation.annotation.ObfuscatorFactory;

final class ObfuscatedBeanDeserializerModifier extends BeanDeserializerModifier {

    private final Obfuscator defaultObfuscator;

    ObfuscatedBeanDeserializerModifier(Obfuscator defaultObfuscator) {
        this.defaultObfuscator = defaultObfuscator;
    }

    @Override
    public BeanDeserializerBuilder updateBuilder(DeserializationConfig config, BeanDescription beanDesc, BeanDeserializerBuilder builder) {
        BeanDeserializerBuilder updatedBuilder = super.updateBuilder(config, beanDesc, builder);
        Map propertyReplacements = new LinkedHashMap<>();
        for (Iterator i = updatedBuilder.getProperties(); i.hasNext(); ) {
            SettableBeanProperty property = i.next();
            Class rawPropertyType = property.getType().getRawClass();

            // These if-statements check for exact interface declarations, so the obfuscating replacement will have a compatible type

            if (rawPropertyType == Obfuscated.class) {
                JsonDeserializer