ObjectMapperResolver.java
/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* 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 org.keycloak.services.util;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.type.TypeFactory;
import com.fasterxml.jackson.datatype.jdk8.StreamSerializer;
import jakarta.ws.rs.ext.ContextResolver;
import jakarta.ws.rs.ext.Provider;
import java.util.stream.Stream;
/**
* Any class with package org.jboss.resteasy.skeleton.key will use NON_DEFAULT inclusion
*
* @author <a href="mailto:bill@burkecentral.com">Bill Burke</a>
* @version $Revision: 1 $
*/
public class ObjectMapperResolver implements ContextResolver<ObjectMapper> {
protected ObjectMapper mapper;
public ObjectMapperResolver() {
mapper = createStreamSerializer();
}
public static ObjectMapper createStreamSerializer() {
ObjectMapper mapper = new ObjectMapper();
JavaType type = TypeFactory.unknownType();
JavaType streamType = mapper.getTypeFactory().constructParametricType(Stream.class, type);
SimpleModule module = new SimpleModule();
module.addSerializer(new StreamSerializer(streamType, type));
mapper.registerModule(module);
mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
if (Boolean.parseBoolean(System.getProperty("keycloak.jsonPrettyPrint", "false"))) {
mapper.enable(SerializationFeature.INDENT_OUTPUT);
}
return mapper;
}
@Override
public ObjectMapper getContext(Class<?> type) {
return mapper;
}
}