container-core/src/main/java/com/yahoo/container/handler/metrics/ErrorResponse.java


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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.handler.metrics;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.util.Map;
import java.util.logging.Logger;

import static java.util.logging.Level.WARNING;

/**
 * @author gjoranv
 */
public class ErrorResponse extends JsonResponse {

    private static final Logger log = Logger.getLogger(ErrorResponse.class.getName());

    private static final ObjectMapper objectMapper = new ObjectMapper();

    public ErrorResponse(int code, String message) {
        super(code, asErrorJson(message != null ? message : "<null>"));
    }

    static String asErrorJson(String message) {
        try {
            return objectMapper.writeValueAsString(Map.of("error", message));
        } catch (JsonProcessingException e) {
            log.log(WARNING, "Could not encode error message to json:", e);
            return "Could not encode error message to json, check the log for details.";
        }
    }

}