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86 lines
2.7 KiB
86 lines
2.7 KiB
/*
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* Copyright (C) 2017 The Dagger Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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 dagger.model;
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import static com.google.common.base.CaseFormat.UPPER_CAMEL;
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import static com.google.common.base.CaseFormat.UPPER_UNDERSCORE;
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import dagger.Lazy;
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import dagger.producers.Produced;
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import dagger.producers.Producer;
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import javax.inject.Provider;
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/**
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* Represents the different kinds of {@link javax.lang.model.type.TypeMirror types} that may be
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* requested as dependencies for the same key. For example, {@code String}, {@code
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* Provider<String>}, and {@code Lazy<String>} can all be requested if a key exists for {@code
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* String}; they have the {@link #INSTANCE}, {@link #PROVIDER}, and {@link #LAZY} request kinds,
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* respectively.
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*/
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public enum RequestKind {
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/** A default request for an instance. E.g.: {@code FooType} */
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INSTANCE,
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/** A request for a {@link Provider}. E.g.: {@code Provider<FooType>} */
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PROVIDER,
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/** A request for a {@link Lazy}. E.g.: {@code Lazy<FooType>} */
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LAZY,
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/** A request for a {@link Provider} of a {@link Lazy}. E.g.: {@code Provider<Lazy<FooType>>} */
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PROVIDER_OF_LAZY,
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/**
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* A request for a members injection. E.g. {@code void injectMembers(FooType);}. Can only be
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* requested by component interfaces.
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*/
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MEMBERS_INJECTION,
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/** A request for a {@link Producer}. E.g.: {@code Producer<FooType>} */
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PRODUCER,
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/** A request for a {@link Produced}. E.g.: {@code Produced<FooType>} */
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PRODUCED,
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/**
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* A request for a {@link com.google.common.util.concurrent.ListenableFuture}. E.g.: {@code
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* ListenableFuture<FooType>}. These can only be requested by component interfaces.
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*/
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FUTURE,
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;
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/** Returns a string that represents requests of this kind for a key. */
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public String format(Key key) {
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switch (this) {
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case INSTANCE:
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return key.toString();
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case PROVIDER_OF_LAZY:
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return String.format("Provider<Lazy<%s>>", key);
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case MEMBERS_INJECTION:
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return String.format("injectMembers(%s)", key);
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case FUTURE:
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return String.format("ListenableFuture<%s>", key);
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default:
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return String.format("%s<%s>", UPPER_UNDERSCORE.to(UPPER_CAMEL, name()), key);
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}
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}
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}
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