[SAP:CPI]: Issue with Content Modifier while capturing XPath

[MortenWittrock]

Hi Experts,

I want to store an XPath in the property using a content modifier for the attached Payload.

I tried the below, but the response looked weird as below.

So, I have changed the Data Type to java.lang.Object . Now, I am able to capture the data in the property.

Not sure, If I am overlooking or missing something.

Any leads/solutions will be really helpful.

Regards,

Pavan

custompayload.xml

[MortenWittrock]

Hi Pavan

What do you intend to do with the XML afterwards? What you're seeing is expected behaviour, I'd say. You are capturing nodes in your property, not text. Casting it to String, as you tried first, only gets you the text content of those nodes.

Regards,

Morten

[asutoshmaharana2326]

Dear Pavan,

I think you can use either of these below Data Types with xpath : "/CustomPayload/TransformedData" and "/CustomPayload/SourceData" and it will give you exact same results. But each Data Type will create differnt kinds of Saxon impl class (Node, NodeList and NodeInfo) objects.

• java.lang.Object
• org.w3c.dom.Node
• org.w3c.dom.NodeList

After the first contentmodifier whenever you want you can just move those objects from properties to body and you are done. Then you can use them for mapping.

Test -

If you want to use them in groovy then you need to use appropriate class to access them (as they are objects of impl classes of NodeList, Node and NodeInfo). Here i am giving an example of if you have defined data type as "org.w3c.dom.NodeList"

import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
import javax.xml.transform.OutputKeys
import javax.xml.transform.Transformer
import javax.xml.transform.TransformerException
import javax.xml.transform.TransformerFactory
import javax.xml.transform.dom.DOMSource
import javax.xml.transform.stream.StreamResult;
import net.sf.saxon.dom.DOMNodeList;
def Message processData(Message message) {
    def properties = message.getProperties();
    value = properties.get("first");
    message.setProperty("firstString", nodeListToString(value))
    return message;
}
private static String nodeListToString(DOMNodeList nodes) throws TransformerException {
    DOMSource source = new DOMSource();
    StringWriter writer = new StringWriter();
    StreamResult result = new StreamResult(writer);
    Transformer transformer = TransformerFactory.newInstance().newTransformer();
    transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
    for (int i = 0; i < nodes.getLength(); ++i) {
        source.setNode(nodes.item(i));
        transformer.transform(source, result);
    }
    return writer.toString();
}

Results -

Thanks,

Asu