org.apache.pulsar.functions.api.examples.window.UserConfigWindowFunction Maven / Gradle / Ivy
/**
* 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.window;
import java.util.Collection;
import java.util.Optional;
import org.apache.pulsar.functions.api.Record;
import org.apache.pulsar.functions.api.WindowContext;
import org.apache.pulsar.functions.api.WindowFunction;
/**
* An example demonstrate retrieving user config value from Context.
*/
public class UserConfigWindowFunction implements WindowFunction {
@Override
public String process(Collection> input, WindowContext context) throws Exception {
Optional