Github user barrotsteindev commented on a diff in the pull request:
https://github.com/apache/lucene-solr/pull/428#discussion_r207742308
--- Diff:
solr/core/src/java/org/apache/solr/update/processor/ParseDateFieldUpdateProcessorFactory.java
---
@@ -172,4 +181,34 @@ public void init(NamedList args) {
return (null == type) || type instanceof DateValueFieldType;
};
}
+
+ public static void validateFormatter(DateTimeFormatter formatter) {
+ // check it's valid via round-trip
+ try {
+ parseInstant(formatter, formatter.format(Instant.now()));
+ } catch (Exception e) {
+ throw new SolrException(SolrException.ErrorCode.SERVER_ERROR,
+ "Bad or unsupported pattern: " +
formatter.toFormat().toString(), e);
+ }
+ }
+
+ private static Instant parseInstant(DateTimeFormatter formatter, String
dateStr) {
+ final TemporalAccessor temporalAccessor = formatter.parse(dateStr);
+ // parsed successfully. But is it a full instant or just to the day?
+ if (temporalAccessor.isSupported(ChronoField.INSTANT_SECONDS)) { //
has time
+ // has offset time
+ if(temporalAccessor.isSupported(ChronoField.OFFSET_SECONDS)) {
--- End diff --
Oh wow can't believe I missed that. This seems so much more robust then the
previous version.
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