statefun-flink/statefun-flink-core/src/main/java/org/apache/flink/statefun/flink/core/functions/LocalSink.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.flink.core.functions;

import java.util.Objects;
import org.apache.flink.statefun.flink.core.di.Inject;
import org.apache.flink.statefun.flink.core.di.Label;
import org.apache.flink.statefun.flink.core.di.Lazy;
import org.apache.flink.statefun.flink.core.message.Message;

final class LocalSink {
  private final Lazy<LocalFunctionGroup> functionGroup;

  @Inject
  LocalSink(@Label("function-group") Lazy<LocalFunctionGroup> functionGroup) {
    this.functionGroup = Objects.requireNonNull(functionGroup);
  }

  void accept(Message message) {
    Objects.requireNonNull(message);
    functionGroup.get().enqueue(message);
  }
}