Examples with KsqlFunctionException io.confluent.ksql.function.KsqlFunctionException used on opensource projects

Example 16 with KsqlFunctionException

use of io.confluent.ksql.function.KsqlFunctionException in project ksql by confluentinc.

the class TimestampToString method timestampToString.

@Udf(description = "Converts a number of milliseconds since 1970-01-01 00:00:00 UTC/GMT into the" + " string representation of the timestamp in the given format. Single quotes in the" + " timestamp format can be escaped with '', for example: 'yyyy-MM-dd''T''HH:mm:ssX'." + " The system default time zone is used when no time zone is explicitly provided." + " The format pattern should be in the format expected" + " by java.time.format.DateTimeFormatter")
public String timestampToString(@UdfParameter(description = "Milliseconds since" + " January 1, 1970, 00:00:00 UTC/GMT.") final long epochMilli, @UdfParameter(description = "The format pattern should be in the format expected by" + " java.time.format.DateTimeFormatter.") final String formatPattern) {
    if (formatPattern == null) {
        return null;
    }
    try {
        final Timestamp timestamp = new Timestamp(epochMilli);
        final DateTimeFormatter formatter = formatters.get(formatPattern);
        return timestamp.toInstant().atZone(ZoneId.systemDefault()).format(formatter);
    } catch (final ExecutionException | RuntimeException e) {
        throw new KsqlFunctionException("Failed to format timestamp " + epochMilli + " with formatter '" + formatPattern + "': " + e.getMessage(), e);
    }
}