URL decoding when parsing query parameters

A URL decoding operation shall be considered when parsing query parameters from a CamelHttpQuery header.

docs/ISuite/50-Development/access-url-get-parameters-in-scripts-7ad2ac9.md

@@ -18,27 +18,21 @@ The integration flow *Scripting – Read Url Get Parameters* reads the individua
 
 > ### Sample Code:  
 > ```
-> import com.sap.gateway.ip.core.customdev.util.Message;
-> import java.util.HashMap;
+> import com.sap.gateway.ip.core.customdev.util.Message
+> import java.nio.charset.Charset
 > 
-> def Message extractUrlGetParameters(Message message) {
+> Message extractUrlGetParameters(Message message) {
+>     String httpQuery = message.getHeader('CamelHttpQuery', String)
 > 
->        //get url 
->        def map = message.getHeaders();
->        def queryString = map.get("CamelHttpQuery");
+>     if (httpQuery) {
+>         Map<String, String> queryParameters = URLDecoder.decode(httpQuery, Charset.defaultCharset().name())
+>                 .tokenize('&')
+>                 .collectEntries { it.tokenize('=') }
+>         message.setProperties(queryParameters)
+>     }
 > 
->        //split url
->        String[] vQuery;
->        vQuery = queryString.split('&');
-> 
->        //set properties
->        for( String pair : vQuery ) {
->            String[] vPairs = pair.split('=')
->            message.setProperty(vPairs[0].replace("\$",""), vPairs[1]);
->        }
->        
->        return message;
->     } 
+>     return message
+> }
 > ```
 
 As a next step, the WebShop example application \([https://help.sap.com/viewer/DRAFT/368c481cd6954bdfa5d0435479fd4eaf/DEV/en-US/767d8ef11b0f4e04819f9fe03d76c4a2.html](https://help.sap.com/viewer/DRAFT/368c481cd6954bdfa5d0435479fd4eaf/DEV/en-US/767d8ef11b0f4e04819f9fe03d76c4a2.html)\) is called and given the corresponding properties to build the right query options.