From issues-return-86836-archive-asf-public=cust-asf.ponee.io@nifi.apache.org Thu Oct 17 16:15:03 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id 3916518067C for ; Thu, 17 Oct 2019 18:15:03 +0200 (CEST) Received: (qmail 56083 invoked by uid 500); 17 Oct 2019 16:15:02 -0000 Mailing-List: contact issues-help@nifi.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@nifi.apache.org Delivered-To: mailing list issues@nifi.apache.org Received: (qmail 55840 invoked by uid 99); 17 Oct 2019 16:15:02 -0000 Received: from mailrelay1-us-west.apache.org (HELO mailrelay1-us-west.apache.org) (209.188.14.139) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 17 Oct 2019 16:15:02 +0000 Received: from jira-he-de.apache.org (static.172.67.40.188.clients.your-server.de [188.40.67.172]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 243A1E30C3 for ; Thu, 17 Oct 2019 16:15:00 +0000 (UTC) Received: from jira-he-de.apache.org (localhost.localdomain [127.0.0.1]) by jira-he-de.apache.org (ASF Mail Server at jira-he-de.apache.org) with ESMTP id 283307805BA for ; Thu, 17 Oct 2019 16:15:00 +0000 (UTC) Date: Thu, 17 Oct 2019 16:15:00 +0000 (UTC) From: "Matt Burgess (Jira)" To: issues@nifi.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (NIFI-6782) Create EL function for repeating a string MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/NIFI-6782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16953883#comment-16953883 ] Matt Burgess commented on NIFI-6782: ------------------------------------ It doesn't look like we support function overloading, but I'll try to add two functions with the same name but different arity. If it's not supported I'll implement the 1-arg function as described above. > Create EL function for repeating a string > ----------------------------------------- > > Key: NIFI-6782 > URL: https://issues.apache.org/jira/browse/NIFI-6782 > Project: Apache NiFi > Issue Type: New Feature > Components: Extensions > Affects Versions: 1.9.2 > Reporter: Andy LoPresto > Assignee: Matt Burgess > Priority: Minor > Labels: expression-language, string-manipulation > > As per a discussion with [~mattyb149], an Expression Language function which allowed for a number of repetitions of a string would be useful for generating arbitrary random text in a {{GenerateFlowFile}} processor. The usage would be: > {code} > ${"some string here":repeat(4)} # repeats the literal string 4 times > ${literal("this_is_also_an_attribute_name"):repeat(3)} # repeats the literal string 3 times > ${my_string_attr:repeat(5)} # repeats the value in the attribute 5 times > ${"explicit string":repeat(random():mod(10):plus(1))} # repeats the string between 1 and 10 times > {code} > If it's easy to implement, I think a multiple parameter option would also be convenient, but it is not a requirement: > {code} > ${"explicit string":repeat(random():mod(10):plus(1))} # repeats the string between 1 and 10 times > ${"explicit string":repeat(1, 10)} # identical behavior to above > {code} -- This message was sent by Atlassian Jira (v8.3.4#803005)