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From anandsubbu <...@git.apache.org>
Subject [GitHub] incubator-metron pull request #516: METRON-830 Adding StringFunctions to Ste...
Date Mon, 10 Apr 2017 06:45:45 GMT
Github user anandsubbu commented on a diff in the pull request:

    https://github.com/apache/incubator-metron/pull/516#discussion_r110582764
  
    --- Diff: metron-platform/metron-common/src/main/java/org/apache/metron/common/dsl/functions/StringFunctions.java
---
    @@ -343,4 +343,89 @@ public Object apply(List<Object> args) {
           return String.format(format, formatArgs);
         }
       }
    +
    +  @Stellar( name="CHOP"
    +          , description = "Remove the last character from a String"
    +          , params = { "the String to chop last character from, may be null"}
    +          , returns = "String without last character, null if null String input"
    +  )
    +  public static class chop extends BaseStellarFunction {
    +
    +    @Override
    +    public Object apply(List<Object> strings) {
    +
    +      if(strings.size() == 0) {
    +        throw new IllegalArgumentException("[CHOP] missing argument: string to be chopped");
    +      }
    +
    +      String chop = StringUtils.chop((String) strings.get(0));
    +      return chop;
    +    }
    +  }
    +
    +  @Stellar( name = "PREPENDIFMISSING"
    --- End diff --
    
    Sure, changed.


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