org.primeframework.mvc.content.guice.ObjectMapperProvider.java Source code

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Here is the source code for org.primeframework.mvc.content.guice.ObjectMapperProvider.java

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/*
 * Copyright (c) 2013, Inversoft Inc., 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 org.primeframework.mvc.content.guice;

import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.Module;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.google.inject.Inject;
import com.google.inject.Provider;

import java.util.Set;

/**
 * Guice provider for the Jackson {@link ObjectMapper}.
 *
 * @author Brian Pontarelli
 */
public class ObjectMapperProvider implements Provider<ObjectMapper> {
    private final Set<Module> jacksonModules;

    @Inject
    public ObjectMapperProvider(Set<Module> jacksonModules) {
        this.jacksonModules = jacksonModules;
    }

    @Override
    public ObjectMapper get() {
        ObjectMapper objectMapper = new ObjectMapper().setSerializationInclusion(Include.NON_NULL)
                .configure(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY, true)
                .configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false)
                .configure(SerializationFeature.ORDER_MAP_ENTRIES_BY_KEYS, true)
                .configure(SerializationFeature.WRITE_EMPTY_JSON_ARRAYS, false)
                .configure(SerializationFeature.WRITE_NULL_MAP_VALUES, false);
        if (jacksonModules.size() > 0) {
            objectMapper.registerModules(jacksonModules);
        }

        return objectMapper;
    }
}