HADOOP-17947. Provide alternative to Guava VisibleForTesting (#3505)
Reviewed-by: Steve Loughran <stevel@apache.org> Signed-off-by: Takanobu Asanuma <tasanuma@apache.org>
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.classification;
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import java.lang.annotation.Documented;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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/**
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* Annotates a program element that exists, or is more widely visible than
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* otherwise necessary, specifically for use in test code.
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* More precisely <i>test code within the hadoop-* modules</i>.
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* Moreover, this gives the implicit scope and stability of:
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* <pre>
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* {@link InterfaceAudience.Private}
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* {@link InterfaceStability.Unstable}
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* </pre>
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* If external modules need to access/override these methods, then
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* they MUST be re-scoped as public/limited private.
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*/
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@Retention(RetentionPolicy.CLASS)
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@Target({ ElementType.TYPE, ElementType.METHOD })
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@Documented
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public @interface VisibleForTesting {
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}
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