com.yoshio3.utils.MyObjectMapperProvider.java Source code

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Here is the source code for com.yoshio3.utils.MyObjectMapperProvider.java

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/*
* Copyright 2016 Yoshio Terada
*
* 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.yoshio3.utils;

import javax.ws.rs.ext.ContextResolver;
import javax.ws.rs.ext.Provider;

import com.fasterxml.jackson.databind.AnnotationIntrospector;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector;
import com.fasterxml.jackson.databind.type.TypeFactory;
import com.fasterxml.jackson.module.jaxb.JaxbAnnotationIntrospector;

/**
 * Inorder to map the "JSON map" to Java Map Object
 *
 * @author Yoshio Terada
 */
@Provider
public class MyObjectMapperProvider implements ContextResolver<ObjectMapper> {

    final ObjectMapper defaultObjectMapper;

    public MyObjectMapperProvider() {
        defaultObjectMapper = createDefaultMapper();
    }

    @Override
    public ObjectMapper getContext(final Class<?> type) {

        return defaultObjectMapper;

    }

    private static ObjectMapper createCombinedObjectMapper() {
        return new ObjectMapper().configure(SerializationFeature.WRAP_ROOT_VALUE, true)
                .configure(DeserializationFeature.UNWRAP_ROOT_VALUE, true)
                .setAnnotationIntrospector(createJaxbJacksonAnnotationIntrospector());
    }

    private static ObjectMapper createDefaultMapper() {
        final ObjectMapper result = new ObjectMapper();
        result.enable(SerializationFeature.INDENT_OUTPUT);

        return result;
    }

    private static AnnotationIntrospector createJaxbJacksonAnnotationIntrospector() {
        final AnnotationIntrospector jaxbIntrospector = new JaxbAnnotationIntrospector(
                TypeFactory.defaultInstance());
        final AnnotationIntrospector jacksonIntrospector = new JacksonAnnotationIntrospector();
        return AnnotationIntrospector.pair(jacksonIntrospector, jaxbIntrospector);
    }
}