statefun-examples/statefun-greeter-example/src/main/java/org/apache/flink/statefun/examples/greeter/GreetRouter.java

/*
 * 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.flink.statefun.examples.greeter;

import org.apache.flink.statefun.examples.greeter.generated.GreetRequest;
import org.apache.flink.statefun.sdk.io.Router;

/**
 * The greet router takes each message from an ingress and routes it to a greeter function based on
 * the users id.
 */
final class GreetRouter implements Router<GreetRequest> {

  @Override
  public void route(GreetRequest message, Downstream<GreetRequest> downstream) {
    downstream.forward(GreetStatefulFunction.TYPE, message.getWho(), message);
  }
}