我正在为 BW6 构建一个自定义函数,该函数应该将 ISO 8601 格式的字符串解析为 dateTime 对象。
到目前为止,我已经构建了这个功能:
@XPathFunction(helpText = "Parse a ISO 8601 datetime string",
parameters = {
@XPathFunctionParameter(name = "isoDateTimeString", optional = false)
},
returnType = "dateTime")
public Date parseIsoDateTime(String isoDateTimeString) throws ParseException {
StringBuilder dateFormatBuilder = new StringBuilder();
dateFormatBuilder.append("yyyy-MM-dd'T'HH:mm:ss");
if (isoDateTimeString.contains(".")) {
dateFormatBuilder.append(".SSS");
}
DateFormat dateFormat = new SimpleDateFormat(dateFormatBuilder.toString());
return dateFormat.parse(isoDateTimeString);
}
当我运行此函数时,BW 抛出异常
09:02:42.412 ERROR [bwEngThread:In-Memory Process Worker-1] com.tibco.bw.core - TIBCO-BW-CORE-500050: The BW process [demo.parse-datetime.module.Process] instance faulted, JobId [bw0a100], ProcessInstanceId [bw0a100], ParentProcessInstanceId [-], Module [demo.parse-datetime.module:1.0.0.qualifier], Application [demo.parse-datetime:1.0].
<CausedBy> TIBCO-BW-CORE-500058: Activity [SetDateTimeValue] XML related error.
<CausedBy> com.tibco.pvm.dataexch.xml.util.exceptions.PmxException: PVM-XML-106017: Expression Evaluation Error: 'bxcom:parseIsoDateTime($dateTimeAsString)'
<CausedBy> java.lang.ClassCastException: java.util.Date cannot be cast to com.tibco.xml.data.primitive.XmlAtomicValue
那么如何从 BW6 中的自定义 xslt 函数返回 XML dateTime 对象。