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[FLINK-xxx1][Runtime] Declaring processing with async state processing
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73 changes: 73 additions & 0 deletions
73
.../apache/flink/streaming/runtime/operators/asyncprocessing/declare/DeclarationContext.java
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.flink.streaming.runtime.operators.asyncprocessing.declare; | ||
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| import java.util.function.BiFunction; | ||
| import java.util.function.Consumer; | ||
| import java.util.function.Function; | ||
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| /** A context to declare parts of process in user-defined function/operator. */ | ||
| public class DeclarationContext { | ||
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| private final DeclarationManager manager; | ||
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| DeclarationContext(DeclarationManager manager) { | ||
| this.manager = manager; | ||
| } | ||
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| // ------------- Declaring Callback part ---------------- | ||
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| /** Declare a callback with a name. */ | ||
| public <T> NamedConsumer<T> declare(String name, Consumer<T> callback) | ||
| throws DeclarationException { | ||
| return manager.register(new NamedConsumer<>(name, callback)); | ||
| } | ||
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| /** Declare a callback with a name. */ | ||
| public <T, V> NamedFunction<T, V> declare(String name, Function<T, V> callback) | ||
| throws DeclarationException { | ||
| return manager.register(new NamedFunction<>(name, callback)); | ||
| } | ||
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| /** Declare a callback with a name. */ | ||
| public <T, U, V> NamedBiFunction<T, U, V> declare(String name, BiFunction<T, U, V> callback) | ||
| throws DeclarationException { | ||
| return manager.register(new NamedBiFunction<>(name, callback)); | ||
| } | ||
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| /** Declare a callback with an automatically assigned name. */ | ||
| public <T> NamedConsumer<T> declare(Consumer<T> callback) throws DeclarationException { | ||
| return declare(manager.nextAssignedName(), callback); | ||
| } | ||
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| /** Declare a callback with an automatically assigned name. */ | ||
| public <T, V> NamedFunction<T, V> declare(Function<T, V> callback) throws DeclarationException { | ||
| return declare(manager.nextAssignedName(), callback); | ||
| } | ||
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| /** Declare a callback with an automatically assigned name. */ | ||
| public <T, U, V> NamedBiFunction<T, U, V> declare(BiFunction<T, U, V> callback) | ||
| throws DeclarationException { | ||
| return declare(manager.nextAssignedName(), callback); | ||
| } | ||
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| DeclarationManager getManager() { | ||
| return manager; | ||
| } | ||
| } |
27 changes: 27 additions & 0 deletions
27
...pache/flink/streaming/runtime/operators/asyncprocessing/declare/DeclarationException.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.flink.streaming.runtime.operators.asyncprocessing.declare; | ||
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| /** Exception thrown when something wrong with declaration happens. */ | ||
| public class DeclarationException extends Exception { | ||
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| DeclarationException(String message) { | ||
| super(message); | ||
| } | ||
| } |
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