[GitHub] metron pull request #912: METRON-1431 Adding REGEX_REPLACE(input, regex, val...

[1havran]

Github user 1havran commented on a diff in the pull request:

    https://github.com/apache/metron/pull/912#discussion_r164570247
  
    --- Diff: 
metron-stellar/stellar-common/src/main/java/org/apache/metron/stellar/dsl/functions/RegExFunctions.java
 ---
    @@ -100,4 +100,39 @@ public Object apply(List<Object> list) {
           return matcher.group(groupNumber);
         }
       }
    +
    +  @Stellar(name = "REGEXP_REPLACE",
    +      description = "Replace all occurences of the regex pattern within 
the string by value",
    +      params = {
    +          "string - The input string",
    +          "pattern - The regex pattern to be replaced. Special characters 
must be escaped (e.g. \\\\d)",
    +          "value - The value to replace the regex pattern"
    +      },
    +      returns = "The modified input string with replaced values")
    +  public static class RegexpReplace extends BaseStellarFunction {
    +
    +    @Override
    +    public Object apply(List<Object> list) {
    +      if (list.size() != 3) {
    +        throw new IllegalStateException(
    +            "REGEXP_REPLACE expects three args: [string, pattern, value]"
    +                + " where pattern is a regexp pattern");
    +      }
    +      String str = (String) list.get(0);
    +      String stringPattern = (String) list.get(1);
    +      String value = (String) list.get(2);
    +
    --- End diff --
    
    Thanks for a hint, it is fixed now.


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