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Structurizr for Java

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package com.structurizr.io.json;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.json.JsonMapper;

import java.text.SimpleDateFormat;
import java.util.TimeZone;

class AbstractJsonWriter {

    private static final String ISO_DATE_TIME_FORMAT = "yyyy-MM-dd'T'HH:mm:ss'Z'";

    ObjectMapper createObjectMapper(boolean indentOutput) {
        ObjectMapper objectMapper = JsonMapper
                .builder()
                .enable(MapperFeature.SORT_PROPERTIES_ALPHABETICALLY).build();

        if (indentOutput) {
            objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
        }

        objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        objectMapper.setSerializationInclusion(JsonInclude.Include.NON_EMPTY);

        SimpleDateFormat sdf = new SimpleDateFormat(AbstractJsonWriter.ISO_DATE_TIME_FORMAT);
        sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
        objectMapper.setDateFormat(sdf);

        return objectMapper;
    }

}