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Snowflake JDBC Driver Thin

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package net.snowflake.client.core;

import com.fasterxml.jackson.core.StreamReadConstraints;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * Factor method used to create ObjectMapper instance. All object mapper in JDBC should be created
 * by this method.
 */
public class ObjectMapperFactory {
  @SnowflakeJdbcInternalApi
  // Snowflake allows up to 128M (after updating Max LOB size) string size and returns base64
  // encoded value that makes it up to 180M
  public static final int DEFAULT_MAX_JSON_STRING_LEN = 180_000_000;

  @SnowflakeJdbcInternalApi
  public static final String MAX_JSON_STRING_LENGTH_JVM =
      "net.snowflake.jdbc.objectMapper.maxJsonStringLength";

  public static ObjectMapper getObjectMapper() {
    ObjectMapper mapper = new ObjectMapper();
    mapper.configure(MapperFeature.OVERRIDE_PUBLIC_ACCESS_MODIFIERS, false);
    mapper.configure(MapperFeature.CAN_OVERRIDE_ACCESS_MODIFIERS, false);
    mapper.enable(DeserializationFeature.USE_BIG_DECIMAL_FOR_FLOATS);

    // override the maxStringLength value in ObjectMapper
    int maxJsonStringLength =
        SystemUtil.convertSystemPropertyToIntValue(
            MAX_JSON_STRING_LENGTH_JVM, DEFAULT_MAX_JSON_STRING_LEN);
    mapper
        .getFactory()
        .setStreamReadConstraints(
            StreamReadConstraints.builder().maxStringLength(maxJsonStringLength).build());
    return mapper;
  }
}