JSON.java

/*
 * Copyright 2015 MV Informática.
 *
 * 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 br.com.mv.modulo.model;

import javax.persistence.Transient;

import org.slf4j.LoggerFactory;

import com.fasterxml.jackson.annotation.JsonInclude.Include;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;

public interface JSON {
	
	@Transient
	public default String toJSON() {
		ObjectMapper mapper = new ObjectMapper();
		mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
		mapper.configure(SerializationFeature.INDENT_OUTPUT, true);
		mapper.configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY,true);
		mapper.setSerializationInclusion(Include.NON_NULL);
		String json = "";
		try {
			json = mapper.writeValueAsString(this);
		} catch (JsonProcessingException e) {
			json = "{ error : Error: it's not possible processing JSON }";
			LoggerFactory.getLogger(JSON.class).error("Error: it's not possible processing JSON", e);
		}
		return json;
	}

}