com.mokung.pomegranate.jackson.handler.getter.BinaryGetter Maven / Gradle / Ivy

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package com.mokung.pomegranate.jackson.handler.getter;

import java.io.IOException;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.BinaryNode;
import com.fasterxml.jackson.databind.node.NullNode;
import com.fasterxml.jackson.databind.node.POJONode;
import com.mokung.pomegranate.jackson.handler.Getter;

/**
 *
 * 
 * @author mokung
 */
public class BinaryGetter implements Getter {

    @Override
    public byte[] getter(JsonNode valueNode, ObjectMapper mapper, boolean cast) {
        if (valueNode instanceof BinaryNode) {
            try {
                return valueNode.binaryValue();
            } catch (IOException e) {
                return null;
            }
        }
        if (valueNode instanceof POJONode) {
            Object value = ((POJONode)valueNode).getPojo();
            if (value instanceof byte[]) {
                return (byte[])value;
            }
        }
        if (!cast || valueNode == null || valueNode instanceof NullNode) {
            return null;
        }
        try {
            return valueNode.binaryValue();
        } catch (IOException e) {
            return null;
        }
    }
}