ErrorFactory.java

package de.rwth.idsg.steve.ocpp.ws;

import de.rwth.idsg.steve.ocpp.ws.data.ErrorCode;
import de.rwth.idsg.steve.ocpp.ws.data.OcppJsonError;

/**
 * Error generation should be handled by a central component for better control over the codes and messages.
 * This class just does that.
 *
 * @author Sevket Goekay <goekay@dbis.rwth-aachen.de>
 * @since 17.03.2015
 */
public final class ErrorFactory {
    private ErrorFactory() { }

    public static OcppJsonError genericDeserializeError(String messageId, String details) {
        return setFields(messageId, ErrorCode.GenericError,
                "The incoming string could not be parsed into an array. Is the JSON syntactically correct?", details);
    }

    public static OcppJsonError payloadDeserializeError(String messageId, String details) {
        return setFields(messageId, ErrorCode.FormationViolation,
                "The payload for action could not be deserialized", details);
    }

    public static OcppJsonError payloadSerializeError(String messageId, String details) {
        return setFields(messageId, ErrorCode.InternalError,
                "The payload for action could not be serialized", details);
    }

    public static OcppJsonError actionNotFound(String messageId, String action) {
        return setFields(messageId, ErrorCode.NotImplemented,
                "The action '" + action + "' you are looking for is not found", null);
    }

    public static OcppJsonError payloadProcessingError(String messageId, String details) {
        return setFields(messageId, ErrorCode.InternalError,
                "Internal services failed while processing of the payload", details);
    }

    private static OcppJsonError setFields(String messageId, ErrorCode code, String desc, String details) {
        OcppJsonError error = new OcppJsonError();
        error.setMessageId(messageId);
        error.setErrorCode(code);
        error.setErrorDescription(desc);
        error.setErrorDetails(details);
        return error;
    }

}