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Code generator library to create and execute GUI automated tests

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package com.ats.element;

import java.util.Base64;
import java.util.Map;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;

public class JsonUtils {

	public static  T getJsonValue(JsonNode node, String key, T defaultValue, Class clazz) {
		if (node.has(key)) {
			JsonNode valueNode = node.get(key);
			if (clazz == String.class && valueNode.isTextual()) return clazz.cast(valueNode.asText());
			if (clazz == Integer.class && valueNode.isInt()) return clazz.cast(valueNode.asInt());
			if (clazz == Double.class && valueNode.isDouble()) return clazz.cast(valueNode.asDouble());
			if (clazz == Boolean.class && valueNode.isBoolean()) return clazz.cast(valueNode.asBoolean());
		}
		return defaultValue;
	}

	public static byte[] getBase64Image(JsonNode node, String key) {
		String base64Image = node.get(key).asText();
		return Base64.getDecoder().decode(base64Image);
	}

	public static ObjectNode createPostData(ObjectMapper mapper, Map values) {
		final ObjectNode postData = mapper.createObjectNode();
		final ObjectNode valueNode = mapper.createObjectNode();
		for (Map.Entry entry : values.entrySet()) {
			valueNode.putPOJO(entry.getKey(), entry.getValue());
		}
		postData.set("value", valueNode);
		return postData;
	}

	public static ObjectNode createPostData(Object pojo) {
		final ObjectMapper mapper = new ObjectMapper();
		final ObjectNode postData = mapper.createObjectNode();
		postData.set("value", mapper.valueToTree(pojo));
		return postData;
	}
}