groovy code good code from web site sap

 error dispaly

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https://blogs.sap.com/2021/09/16/sap-cloud-integration-cpi-hci-writing-groovy-scripts-_-with-basic-examples/

1. To record logs so that you can capture the payload even if the IFlow is not on trace.
It is not advisable to use this very often, until and unless it is a very critical scenario.

import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;

def Message processData(Message message)
{   
    def body = message.getBody(java.lang.String) as String;
    def messageLog = messageLogFactory.getMessageLog(message);
    if(messageLog != null)
    {
        messageLog.setStringProperty("log1","Printing Payload As Attachment")
        messageLog.addAttachmentAsString("log1",body,"text/plain");
    }
    return message;
}

To record logs or capture the incoming payload, only if there is an exception.

import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
def Message processData(Message message)
{
       def map  = message.getProperties();
       def ex   = map.get("CamelExceptionCaught");
       if (ex != null)
       {
           exceptionText    = ex.getMessage();
           def messageLog   = messageLogFactory.getMessageLog(message);
           messageLog.addAttachmentAsString("Exception", exceptionText,"application/text");
       }
       return message;
}

import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
def Message processData(Message message)
{
       def body = message.getBody();
       sleep(40000);
       message.setBody(body);
       return message;
}

4. Remove something from your payload, for example, “<?xml version=”1.0″ encoding=”UTF-8″?>“

import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
def Message processData(Message message)
{
    def removal=message.getBody(java.lang.String) as String;
    removal=removal.replace(/<?xml version="1.0" encoding="UTF-8"?>/,"");
    message.setBody(removal);
    return message;
}

5. getProperties

Click here to compile the code online.
COMPILE

This will return all the properties, Header and Properties.

import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
import java.lang.*;
def Message processData(Message message)
{
    map = message.getProperties();
    return message;
}

6. Capture a property in the content modifier using XPATH, use 
single IF condition, create and update a new Property which can be used 
later in a Router or Mapping Expression maybe.

In the example below, we are returning the result in a 
Property called, “Result”, which you could use in a router/ call it 
using ${property.Result} if required anywhere.

import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
def Message processData(Message message) {
    map = message.getProperties();
    def zID = map.get("ID");
    def indicator;
    if(zID == '')
    {
        indicator = 'false';
    }
    else
    {
        indicator = 'true';
    }
    message.setProperty("Result", indicator);
    return message;
}

Capture a property in the content modifier using XPATH, use 
single IF condition, create and update a new Property which can be used 
later in a Router or Mapping Expression maybe.

In the example below, we are returning the result in a 
Property called, “Result”, which you could use in a router/ call it 
using ${property.Result} if required anywhere.

Click here to compile the code online.

import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
def Message processData(Message message) {
    map = message.getProperties();
    def zID = map.get("ID");
    def indicator;
    if(zID == '')
    {
        indicator = 'false';
    }
    else
    {
        indicator = 'true';
    }
    message.setProperty("Result", indicator);
    return message;
}


7. Let’s say, you want to concatenate a couple of fields.

Click here to compile the code online.

import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
import java.lang.*;
def Message processData(Message message)
{
    map = message.getProperties();
    def ZF1    = map.get("F1");
    def ZF2    = map.get("F2");
    def ZF3    = map.get("F3");
    String ZConcat = ZF1.concat(ZF2).concat(ZF3);
    message.setProperty("ConcatenatedResult",ZConcat);


8. Add days to a Date.

import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
import java.lang.*;
import com.sap.it.api.mapping.*;
def Message processData(Message message)
{
    Date zcurDate = new Date();
    Date zNewDate = zcurDate + 30;
    message.setProperty("Current_Date",zcurDate);
    message.setProperty("New_Date",zNewDate);
    return message;
}



import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
import java.lang.*;
import com.sap.it.api.mapping.*;
def Message processData(Message message)
{
    def zNewDate = new Date().plus(30)
    message.setProperty("New_Date",zNewDate);
    return message;
}


import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
import com.sap.it.api.mapping.*;
def String datePlus30(String header,MappingContext context){
    Date zcurDate = new Date();
    Date znewDate = zcurDate + 30;
    return znewDate.format("yyyyMMdd");
}


import com.sap.it.api.mapping.*;
def String customFunc(String arg1){
	return null
}




import com.sap.gateway.ip.core.customdev.util.Message;
import java.util.HashMap;
import com.sap.it.api.mapping.*;

def String getMessageProcessingLogID(String header,MappingContext context)
{
        String mplId = context.getHeader("SAP_MessageProcessingLogID").toString();
        return mplId;
}