[jira] [Resolved] (JEXL-379) Allow new to use class identifier

["Henri Biestro (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JEXL-379?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Henri Biestro resolved JEXL-379.
--------------------------------
    Resolution: Fixed

Commit [656fcea|https://github.com/apache/commons-jexl/commit/656fceaa1ca27f719a98213a05f5f6aea637ed2]

> Allow new to use class identifier
> ---------------------------------
>
>                 Key: JEXL-379
>                 URL: https://issues.apache.org/jira/browse/JEXL-379
>             Project: Commons JEXL
>          Issue Type: Improvement
>    Affects Versions: 3.2.1
>            Reporter: Henri Biestro
>            Assignee: Henri Biestro
>            Priority: Major
>             Fix For: 3.3
>
>
> WHAT:
> The Java syntax for new is easier/nicer to use than the current JEXL one that forces to use a fully qualified class name (FQCN) to instantiate an object. The improvement will allow using the Java new syntax using either an FQCN (as identifier) or just an identifier.
> HOW:
> The grammar is augmented to allow the 'new qualified_class_name(<args>)' syntax. Provision is to be made to allow an 'import'-like mechanism so class identifiers can be resolved (JexlContext extension).
> The pragma 'jexl.import' allows the declaration of packages to visit to find the fully-qualified class name from a simple class name.
> Canonical example is:
> {code}
> //-------------------------------------------------------------------
> // send a POST Request
> //-------------------------------------------------------------------
> #pragma jexl.import  java.net
> #pragma jexl.import  java.io
> {
>     "execute" : (sURL, jsonData) -> {
>         let url = new URL(sURL);
>         let con = url.openConnection();
>         con.setRequestMethod("POST");
>         con.setRequestProperty("Accept", "application/json");
>         // send data
>         if (jsonData != null) {
>             con.setRequestProperty("Content-Type", "application/json; utf-8");
>             con.setDoOutput(true);
>             let outputStream = con.getOutputStream();
>             let input = jsonData.getBytes("utf-8");
>             outputStream.write(input, 0, size(input));
>         }
>         // read response
>         let responseCode = con.getResponseCode();
>         let inputStream = con.getInputStream();
>         let response = new StringBuffer();
>         if (inputStream != null) {
>             let in = new BufferedReader(new InputStreamReader(inputStream));
>             var inputLine = "";
>             while ((inputLine = in.readLine()) != null) {
>                 response.append(inputLine);
>             }
>             in.close();
>         }
>         response.toString();
>     }
> }
> {code}



--
This message was sent by Atlassian Jira
(v8.20.10#820010)