Parse HTTP Path

Parse eingehende HTTP-Pfad Parameter. Besonders nützlich bei REST-APIs oder dynamischen iFlow Aufrufen von anderen Apps.

Erwartetes Verhalten: Alle Pfad-Parameter werden mit einem p_HTTPPath_Index<index> - prefix als Exchange Property gesetzt.

Der Pfad des Senders muss immer eine Wildcard /* enthalten, damit HTTP Parameter berücksichtigt werden.

import com.sap.gateway.ip.core.customdev.util.Message
import java.net.URLDecoder
 
/**
 * @description   Script to parse inbound HTTP path segments from CamelHttpPath
 *                and assign them to message properties. Does not change the message.
 *                Assumption: CPI HTTP sender has /* wildcard
 * @author        Cpro Industry
 * @version       1.0.0
 * @example       HTTP-Path: "/orders/4711/items/3" --> MessageProperties:
 *                "p_HTTPPath_Index1=orders", "p_HTTPPath_Index2=4711",
 *                "p_HTTPPath_Index3=items", "p_HTTPPath_Index4=3"
 */
 
Message processData(Message message) {
    // Get raw path from incoming HTTP request header
    def path = message.getHeaders().get('CamelHttpPath') as String  // e.g. /orders/4711/items/3
    if (!path) {
        return message
    }
 
    // Split path into segments; tolerate leading/trailing slashes and empty entries
    def segments = path.split('/')
                       .findAll { it != null && it.trim().length() > 0 }
 
    if (segments.isEmpty()) {
        return message
    }
 
    // Store each segment as property p_HTTPPath_Index1, p_HTTPPath_Index2, ...
    segments.eachWithIndex { segment, index ->
        def value = URLDecoder.decode(segment, 'UTF-8')
        def propName = 'p_HTTPPath_Index' + (index + 1)
        message.setProperty(propName, value)
    }
 
    return message
}