| /* |
| * 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.beam.sdk.transforms.reflect; |
| |
| import static org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.MoreObjects.firstNonNull; |
| |
| import com.google.auto.value.AutoValue; |
| import javax.annotation.Nullable; |
| import org.apache.beam.sdk.transforms.DoFn; |
| import org.apache.beam.vendor.bytebuddy.v1_9_3.net.bytebuddy.NamingStrategy; |
| import org.apache.beam.vendor.bytebuddy.v1_9_3.net.bytebuddy.description.type.TypeDescription; |
| |
| /** |
| * A naming strategy for ByteBuddy invokers ({@link DoFnInvoker} and {@link OnTimerInvoker}) that is |
| * deterministic and readable. This is correct to use only when a class is created at most once. |
| */ |
| @AutoValue |
| abstract class StableInvokerNamingStrategy extends NamingStrategy.AbstractBase { |
| |
| public abstract Class<? extends DoFn<?, ?>> getFnClass(); |
| |
| @Nullable |
| public abstract String getSuffix(); |
| |
| public static StableInvokerNamingStrategy forDoFnClass(Class<? extends DoFn<?, ?>> fnClass) { |
| return new AutoValue_StableInvokerNamingStrategy(fnClass, null); |
| } |
| |
| public StableInvokerNamingStrategy withSuffix(String newSuffix) { |
| return new AutoValue_StableInvokerNamingStrategy(getFnClass(), newSuffix); |
| } |
| |
| @Override |
| protected String name(TypeDescription superClass) { |
| return String.format( |
| "%s$%s", |
| getFnClass().getName(), firstNonNull(getSuffix(), superClass.getName().replace(".", "_"))); |
| } |
| } |