/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.pulsar.functions.api.examples;

import java.util.Optional;
import org.apache.pulsar.functions.api.Context;
import org.apache.pulsar.functions.api.Function;

/**
 * An example demonstrate retrieving user config value from Context.
 */
public class UserConfigFunction implements Function<String, String> {

    @Override
    public String process(String input, Context context) {
        Optional<Object> whatToWrite = context.getUserConfigValue("WhatToWrite");
        if (whatToWrite.get() != null) {
            return (String) whatToWrite.get();
        } else {
            return "Not a nice way";
        }
    }
}


@@ -857,35 +857,8 @@
 s;%0A%0A
-import java.util.Optional;%0A
 impo
@@ -1184,38 +1184,23 @@
     
-Optional%3CObject%3E whatToWrite =
+return (String)
  con
@@ -1241,134 +1241,16 @@
 te%22)
-;%0A        if (whatToWrite.get() != null) %7B%0A            return (String) whatToWrite.get();%0A        %7D else %7B%0A            return 
+.orElse(
 %22Not
@@ -1265,19 +1265,10 @@
 way%22
+)
 ;
-%0A        %7D
 %0A   

Fix UserConfigFunction example (#15240)