/
Handlers.java
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/
Handlers.java
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/*
* Copyright (c) 2017 Uber Technologies, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.uber.nullaway.handlers;
import com.google.common.collect.ImmutableList;
import com.uber.nullaway.Config;
/** Utility static methods for the handlers package. */
public class Handlers {
private Handlers() {}
/**
* Builds the default handler for the checker.
*
* @param config NullAway config
* @return A {@code CompositeHandler} including the standard handlers for the nullness checker.
*/
public static Handler buildDefault(Config config) {
ImmutableList.Builder<Handler> handlerListBuilder = ImmutableList.builder();
if (config.acknowledgeRestrictiveAnnotations()) {
// This runs before LibraryModelsHandler, so that library models can override third-party
// bytecode annotations
handlerListBuilder.add(new RestrictiveAnnotationHandler(config));
}
if (config.isJarInferEnabled()) {
handlerListBuilder.add(new InferredJARModelsHandler(config));
}
handlerListBuilder.add(new LibraryModelsHandler());
handlerListBuilder.add(new RxNullabilityPropagator());
handlerListBuilder.add(new ContractHandler());
handlerListBuilder.add(new ApacheThriftIsSetHandler());
if (config.checkOptionalEmptiness()) {
handlerListBuilder.add(new OptionalEmptinessHandler());
}
return new CompositeHandler(handlerListBuilder.build());
}
/**
* Builds an empty handler chain (used for the NullAway dummy empty constructor).
*
* @return An empty {@code CompositeHandler}.
*/
public static Handler buildEmpty() {
return new CompositeHandler(ImmutableList.of());
}
}