| /* |
| * 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.types; |
| |
| import com.google.protobuf.Message; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Objects; |
| import javax.annotation.concurrent.NotThreadSafe; |
| import org.apache.flink.api.common.typeinfo.TypeInformation; |
| import org.apache.flink.statefun.flink.common.protobuf.ProtobufTypeInformation; |
| import org.apache.flink.statefun.sdk.state.PersistedValue; |
| |
| /** |
| * DynamicallyRegisteredTypes are types that are types that were discovered during runtime, for |
| * example registered {@linkplain PersistedValue}s. |
| */ |
| @NotThreadSafe |
| public final class DynamicallyRegisteredTypes { |
| |
| private final StaticallyRegisteredTypes staticallyKnownTypes; |
| private final Map<Class<?>, TypeInformation<?>> registeredTypes = new HashMap<>(); |
| |
| public DynamicallyRegisteredTypes(StaticallyRegisteredTypes staticallyKnownTypes) { |
| this.staticallyKnownTypes = Objects.requireNonNull(staticallyKnownTypes); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public <T> TypeInformation<T> registerType(Class<T> type) { |
| TypeInformation<T> typeInfo = staticallyKnownTypes.getType(type); |
| if (typeInfo != null) { |
| return typeInfo; |
| } |
| return (TypeInformation<T>) registeredTypes.computeIfAbsent(type, this::typeInformation); |
| } |
| |
| @SuppressWarnings("unchecked") |
| private TypeInformation<?> typeInformation(Class<?> valueType) { |
| if (Message.class.isAssignableFrom(valueType)) { |
| Class<Message> message = (Class<Message>) valueType; |
| return new ProtobufTypeInformation<>(message); |
| } |
| // TODO: we may want to restrict the allowed typeInfo here to theses that respect schema |
| // evaluation. |
| return TypeInformation.of(valueType); |
| } |
| } |