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From cestella <...@git.apache.org>
Subject [GitHub] incubator-metron pull request #231: METRON-394 Create Stellar Date Functions...
Date Fri, 26 Aug 2016 13:03:39 GMT
Github user cestella commented on a diff in the pull request:

    https://github.com/apache/incubator-metron/pull/231#discussion_r76414651
  
    --- Diff: metron-platform/metron-common/src/main/java/org/apache/metron/common/dsl/functions/DateFunctions.java
---
    @@ -114,17 +122,176 @@ public Object apply(List<Object> objects) {
           }
           if(dateObj != null && formatObj != null) {
             try {
    -          return getEpochTime(dateObj.toString()
    -                             , formatObj.toString()
    -                             , tzObj == null?Optional.empty():Optional.of(tzObj.toString())
    -                             );
    -        } catch (ExecutionException e) {
    -          return null;
    -        } catch (ParseException e) {
    +          Optional<String> tz = (tzObj == null) ? Optional.empty() : Optional.of(tzObj.toString());
    +          return getEpochTime(dateObj.toString(), formatObj.toString(), tz);
    +
    +        } catch (ExecutionException | ParseException e) {
               return null;
             }
           }
           return null;
         }
       }
    +
    +  /**
    +   * Stellar Function: DAY_OF_WEEK
    +   *
    +   * The numbered day within the week.  The first day of the week, Sunday, has a value
of 1.
    +   */
    +  public static class DayOfWeek extends BaseStellarFunction {
    +    @Override
    +    public Object apply(List<Object> args) {
    +
    +      // expect epoch milliseconds
    +      Long epochMillis = ConversionUtils.convert(args.get(0), Long.class);
    --- End diff --
    
    can you do an args.get(0) null check before this?


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