| /* |
| * 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.Map; |
| import java.util.Objects; |
| import org.apache.flink.statefun.flink.core.StatefulFunctionsConfig; |
| import org.apache.flink.statefun.flink.core.message.Message; |
| import org.apache.flink.statefun.sdk.io.EgressIdentifier; |
| import org.apache.flink.streaming.api.operators.*; |
| import org.apache.flink.util.OutputTag; |
| |
| public final class FunctionGroupDispatchFactory |
| implements OneInputStreamOperatorFactory<Message, Message>, YieldingOperatorFactory<Message> { |
| |
| private static final long serialVersionUID = 1; |
| |
| private final StatefulFunctionsConfig configuration; |
| |
| private final Map<EgressIdentifier<?>, OutputTag<Object>> sideOutputs; |
| |
| private transient MailboxExecutor mailboxExecutor; |
| |
| public FunctionGroupDispatchFactory( |
| StatefulFunctionsConfig configuration, |
| Map<EgressIdentifier<?>, OutputTag<Object>> sideOutputs) { |
| this.configuration = configuration; |
| this.sideOutputs = sideOutputs; |
| } |
| |
| @Override |
| public void setMailboxExecutor(MailboxExecutor mailboxExecutor) { |
| this.mailboxExecutor = |
| Objects.requireNonNull(mailboxExecutor, "Mailbox executor can't be NULL"); |
| } |
| |
| @Override |
| public <T extends StreamOperator<Message>> T createStreamOperator( |
| StreamOperatorParameters<Message> streamOperatorParameters) { |
| FunctionGroupOperator fn = |
| new FunctionGroupOperator( |
| sideOutputs, |
| configuration, |
| mailboxExecutor, |
| ChainingStrategy.ALWAYS, |
| streamOperatorParameters.getProcessingTimeService()); |
| fn.setup( |
| streamOperatorParameters.getContainingTask(), |
| streamOperatorParameters.getStreamConfig(), |
| streamOperatorParameters.getOutput()); |
| |
| return (T) fn; |
| } |
| |
| @Override |
| public void setChainingStrategy(ChainingStrategy chainingStrategy) { |
| // We ignore the chaining strategy, because we only use ChainingStrategy.ALWAYS |
| } |
| |
| @Override |
| public ChainingStrategy getChainingStrategy() { |
| return ChainingStrategy.ALWAYS; |
| } |
| |
| @Override |
| public Class<? extends StreamOperator> getStreamOperatorClass(ClassLoader classLoader) { |
| return FunctionGroupOperator.class; |
| } |
| } |