DataTypeAdapter.java

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package eu.glsgroup.fpcs.soap.util;

import eu.glsgroup.fpcs.dto.error.FPCSServiceException;
import eu.glsgroup.fpcs.dto.util.DateFormatter;

import java.math.BigDecimal;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class DataTypeAdapter {

    private static final String DATETIME_FORMAT_STRING = "yyyy-MM-dd'T'HH:mm:ssXXX";

    public static BigDecimal unmarshalBigDecimal(String value) {

        return assumeValidBigDecimal(value, "");
    }

    private static BigDecimal assumeValidBigDecimal(String value, String fieldName) {

        try {
            return new BigDecimal(value);
        }
        catch (NumberFormatException e) {
            throw new SOAPRequestValidationException("Cannot interpret " + value + " as a valid decimal value.", e);
        }
    }

    public static String marshalBigDecimal(BigDecimal value) {

        return value.toPlainString();
    }

    public static Date unmarshalDate(String value) {

        if (empty(value)) {
            return null;
        }
        try {
            /*
             * we trim the date fields to max length of 10 so we can maintain the behaviour of previous lenient date formatter,
             * for example in "FindParcels - OK - Fields MaxLen for test TS_STBE_REST_Tracking.F-111.FPCSSTBETRP0023"
             */
            return DateFormatter.getInstance().parseDate(trimDate(value));
        }
        catch (FPCSServiceException e) {

            throw new SOAPRequestValidationException("Cannot interpret " + value + " as a valid date.", e);
        }
    }

    private static boolean empty(String value) {

        return value == null || value.isEmpty();
    }

    public static String trimDate(String value) {

        String trimmed = value.trim();
        return trimmed.length() < 11? trimmed : trimmed.substring(0, 10);
    }

    public static String marshalDate(Date value) {

        if (value == null) {
            return null;
        }
        return DateFormatter.getInstance().formatDate(value);
    }

    public static Date unmarshalDateTime(String value) {

        if (empty(value)) {
            return null;
        }
        try {
            //TODO use DateFormatter instead
            return new SimpleDateFormat(DATETIME_FORMAT_STRING).parse(value);
        }
        catch (ParseException e) {
            throw new SOAPRequestValidationException(
                    "Cannot interpret " + value + " as a valid date. Please submit in format " + DATETIME_FORMAT_STRING);
        }
    }

    public static String marshalDateTime(Date value) {

        if (value == null) {
            return null;
        }
        //TODO use DateFormatter instead
        return new SimpleDateFormat(DATETIME_FORMAT_STRING).format(value);
    }

}