gnodet commented on code in PR #1393: URL: https://github.com/apache/maven/pull/1393#discussion_r1466629617
########## maven-di/src/main/java/org/apache/maven/di/Injector.java: ########## @@ -0,0 +1,613 @@ +/* + * 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.maven.di; + +import java.lang.reflect.Constructor; +import java.lang.reflect.InvocationTargetException; +import java.util.*; +import java.util.Map.Entry; +import java.util.concurrent.atomic.AtomicReferenceArray; +import java.util.function.Supplier; +import java.util.function.UnaryOperator; + +import org.apache.maven.api.annotations.Nullable; +import org.apache.maven.di.binding.*; +import org.apache.maven.di.impl.CompiledBinding; +import org.apache.maven.di.impl.CompiledBindingLocator; +import org.apache.maven.di.impl.Preprocessor; +import org.apache.maven.di.module.Module; +import org.apache.maven.di.module.Modules; +import org.apache.maven.di.util.Trie; +import org.apache.maven.di.util.Utils; + +import static java.util.stream.Collectors.toMap; +import static org.apache.maven.di.Scope.UNSCOPED; +import static org.apache.maven.di.util.Types.parameterizedType; + +/** + * Injector is the main working component of the ActiveJ Inject. + * <p> + * It stores a trie of binding graphs and a cache of already made singletons. + * <p> + * Each injector is associated with exactly zero or one instance per {@link Key}. + * <p> + * Injector uses binding graph at the root of the trie to recursively create and then store instances of objects + * associated with some {@link Key keys}. + * Branches of the trie are used to {@link #enterScope enter scopes}. + */ +@SuppressWarnings({"unused", "WeakerAccess", "rawtypes"}) +public final class Injector implements ResourceLocator { + static class ScopeLocalData { + final Scope[] scope; + final Map<Key<?>, Binding<?>> bindings; + final Map<Key<?>, CompiledBinding<?>> compiledBindings; + final Map<Key<?>, Integer> slotMapping; + final int slots; + final CompiledBinding<?>[] eagerSingletons; + + ScopeLocalData( + Scope[] scope, + Map<Key<?>, Binding<?>> bindings, + Map<Key<?>, CompiledBinding<?>> compiledBindings, + Map<Key<?>, Integer> slotMapping, + int slots, + CompiledBinding<?>[] eagerSingletons) { + this.scope = scope; + this.bindings = bindings; + this.compiledBindings = compiledBindings; + this.slotMapping = slotMapping; + this.slots = slots; + this.eagerSingletons = eagerSingletons; + } + } + + final @Nullable Injector parent; + final Trie<Scope, ScopeLocalData> scopeDataTree; + + final Map<Key<?>, Integer> localSlotMapping; + final Map<Key<?>, CompiledBinding<?>> localCompiledBindings; + + final AtomicReferenceArray[] scopeCaches; + + private static Supplier<UnaryOperator<CompiledBinding<?>>> bytecodePostprocessorFactory = UnaryOperator::identity; + + /** + * Enables specialization of compiled bindings. <b>Depends on {@code ActiveJ-Specializer} module</b> + */ + @SuppressWarnings("unchecked") + public static void useSpecializer() { Review Comment: I don't think we need, so that will be removed. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
