9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan/*
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * The contents of this file are subject to the terms of the Common Development and
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * Distribution License (the License). You may not use this file except in compliance with the
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * License.
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan *
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * specific language governing permission and limitations under the License.
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan *
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * When distributing Covered Software, include this CDDL Header Notice in each file and include
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * Header, with the fields enclosed by brackets [] replaced by your own identifying
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * information: "Portions Copyrighted [year] [name of copyright owner]".
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan *
226b1d9e6b9fc92ae532c0deef05c40d22ed44dfPhill Cunnington * Copyright 2014-2015 ForgeRock AS.
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan */
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hoganpackage org.forgerock.openam.sts.tokengeneration.config;
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hoganimport com.google.inject.Guice;
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hoganimport com.google.inject.Injector;
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hoganimport com.google.inject.Key;
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan/**
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * Class used to create the injector corresponding to the bindings defining the TokenGenerationService. This class will
226b1d9e6b9fc92ae532c0deef05c40d22ed44dfPhill Cunnington * only be referenced by the TokenGenerationServiceHttpRouteProvider, when it is initialized by the CREST
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * servlet the first time the token-generation-service is invoked. This class serves as the bridge between the
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * non-guice CREST servlet context and the guice bindings which define the functionality of the token generation service.
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan */
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hoganpublic enum TokenGenerationServiceInjectorHolder {
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan /**
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * The Singleton instance of the InjectorHolder.
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan */
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan INSTANCE;
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan private final Injector injector;
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan private TokenGenerationServiceInjectorHolder() {
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan try {
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan injector = Guice.createInjector(new TokenGenerationModule());
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan } catch (Exception e) {
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan throw new IllegalStateException(e);
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan }
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan }
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan /**
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * Returns the appropriate instance for the given injection key.
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * Avoid using this method, in favor of having Guice inject your dependencies ahead of time.
226b1d9e6b9fc92ae532c0deef05c40d22ed44dfPhill Cunnington * Is only called by the TokenGenerationServiceHttpRouteProvider.
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan *
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * @param key The key that defines the class to get.
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * @param <T> The type of class defined by the key.
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan * @return An instance of the class defined by the key.
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan */
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan public static <T> T getInstance(Key<T> key) {
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan return INSTANCE.injector.getInstance(key);
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan }
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan
9d406c6b25ce9f6bf266b077443e723b95962914Dirk Hogan}