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Java example source code file (ServletScopesTest.java)
The ServletScopesTest.java Java example source code/** * Copyright (C) 2011 Google Inc. * * Licensed 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 com.google.inject.servlet; import static com.google.inject.name.Names.named; import static java.lang.annotation.RetentionPolicy.RUNTIME; import com.google.common.collect.ImmutableMap; import com.google.inject.AbstractModule; import com.google.inject.Binding; import com.google.inject.Guice; import com.google.inject.Injector; import com.google.inject.Key; import com.google.inject.Module; import com.google.inject.PrivateModule; import com.google.inject.Provides; import com.google.inject.ScopeAnnotation; import com.google.inject.Scopes; import com.google.inject.Singleton; import com.google.inject.name.Named; import com.google.inject.spi.Element; import com.google.inject.spi.Elements; import com.google.inject.spi.PrivateElements; import com.google.inject.util.Providers; import junit.framework.TestCase; import java.lang.annotation.ElementType; import java.lang.annotation.Retention; import java.lang.annotation.Target; import java.util.List; import java.util.Map; /** * Tests for {@link ServletScopes}. * * @author forster@google.com (Mike Forster) */ public class ServletScopesTest extends TestCase { public void testIsRequestScopedPositive() { final Key<String> a = Key.get(String.class, named("A")); final Key<String> b = Key.get(String.class, named("B")); final Key<String> c = Key.get(String.class, named("C")); final Key<String> d = Key.get(String.class, named("D")); final Key<Object> e = Key.get(Object.class, named("E")); final Key<String> f = Key.get(String.class, named("F")); final Key<String> g = Key.get(String.class, named("G")); Module requestScopedBindings = new AbstractModule() { @Override protected void configure() { bind(a).to(b); bind(b).to(c); bind(c).toProvider(Providers.of("c")).in(ServletScopes.REQUEST); bind(d).toProvider(Providers.of("d")).in(RequestScoped.class); bind(e).to(AnnotatedRequestScopedClass.class); install(new PrivateModule() { @Override protected void configure() { bind(f).toProvider(Providers.of("f")).in(RequestScoped.class); expose(f); } }); } @Provides @Named("G") @RequestScoped String provideG() { return "g"; } }; @SuppressWarnings("unchecked") // we know the module contains only bindings List<Element> moduleBindings = Elements.getElements(requestScopedBindings); ImmutableMap<Key>, Binding>> map = indexBindings(moduleBindings); // linked bindings are not followed by modules assertFalse(ServletScopes.isRequestScoped(map.get(a))); assertFalse(ServletScopes.isRequestScoped(map.get(b))); assertTrue(ServletScopes.isRequestScoped(map.get(c))); assertTrue(ServletScopes.isRequestScoped(map.get(d))); // annotated classes are not followed by modules assertFalse(ServletScopes.isRequestScoped(map.get(e))); assertTrue(ServletScopes.isRequestScoped(map.get(f))); assertTrue(ServletScopes.isRequestScoped(map.get(g))); Injector injector = Guice.createInjector(requestScopedBindings, new ServletModule()); assertTrue(ServletScopes.isRequestScoped(injector.getBinding(a))); assertTrue(ServletScopes.isRequestScoped(injector.getBinding(b))); assertTrue(ServletScopes.isRequestScoped(injector.getBinding(c))); assertTrue(ServletScopes.isRequestScoped(injector.getBinding(d))); assertTrue(ServletScopes.isRequestScoped(injector.getBinding(e))); assertTrue(ServletScopes.isRequestScoped(injector.getBinding(f))); assertTrue(ServletScopes.isRequestScoped(injector.getBinding(g))); } public void testIsRequestScopedNegative() { final Key<String> a = Key.get(String.class, named("A")); final Key<String> b = Key.get(String.class, named("B")); final Key<String> c = Key.get(String.class, named("C")); final Key<String> d = Key.get(String.class, named("D")); final Key<String> e = Key.get(String.class, named("E")); final Key<String> f = Key.get(String.class, named("F")); final Key<String> g = Key.get(String.class, named("G")); final Key<String> h = Key.get(String.class, named("H")); final Key<String> i = Key.get(String.class, named("I")); final Key<String> j = Key.get(String.class, named("J")); Module requestScopedBindings = new AbstractModule() { @Override protected void configure() { bind(a).to(b); bind(b).to(c); bind(c).toProvider(Providers.of("c")).in(Scopes.NO_SCOPE); bind(d).toInstance("d"); bind(e).toProvider(Providers.of("e")).asEagerSingleton(); bind(f).toProvider(Providers.of("f")).in(Scopes.SINGLETON); bind(g).toProvider(Providers.of("g")).in(Singleton.class); bind(h).toProvider(Providers.of("h")).in(CustomScoped.class); bindScope(CustomScoped.class, Scopes.NO_SCOPE); install(new PrivateModule() { @Override protected void configure() { bind(i).toProvider(Providers.of("i")).in(CustomScoped.class); expose(i); } }); } @Provides @Named("J") @CustomScoped String provideJ() { return "j"; } }; @SuppressWarnings("unchecked") // we know the module contains only bindings List<Element> moduleBindings = Elements.getElements(requestScopedBindings); ImmutableMap<Key>, Binding>> map = indexBindings(moduleBindings); assertFalse(ServletScopes.isRequestScoped(map.get(a))); assertFalse(ServletScopes.isRequestScoped(map.get(b))); assertFalse(ServletScopes.isRequestScoped(map.get(c))); assertFalse(ServletScopes.isRequestScoped(map.get(d))); assertFalse(ServletScopes.isRequestScoped(map.get(e))); assertFalse(ServletScopes.isRequestScoped(map.get(f))); assertFalse(ServletScopes.isRequestScoped(map.get(g))); assertFalse(ServletScopes.isRequestScoped(map.get(h))); assertFalse(ServletScopes.isRequestScoped(map.get(i))); assertFalse(ServletScopes.isRequestScoped(map.get(j))); Injector injector = Guice.createInjector(requestScopedBindings); assertFalse(ServletScopes.isRequestScoped(injector.getBinding(a))); assertFalse(ServletScopes.isRequestScoped(injector.getBinding(b))); assertFalse(ServletScopes.isRequestScoped(injector.getBinding(c))); assertFalse(ServletScopes.isRequestScoped(injector.getBinding(d))); assertFalse(ServletScopes.isRequestScoped(injector.getBinding(e))); assertFalse(ServletScopes.isRequestScoped(injector.getBinding(f))); assertFalse(ServletScopes.isRequestScoped(injector.getBinding(g))); assertFalse(ServletScopes.isRequestScoped(injector.getBinding(h))); assertFalse(ServletScopes.isRequestScoped(injector.getBinding(i))); assertFalse(ServletScopes.isRequestScoped(injector.getBinding(j))); } @RequestScoped static class AnnotatedRequestScopedClass {} @Target({ ElementType.TYPE, ElementType.METHOD }) @Retention(RUNTIME) @ScopeAnnotation private @interface CustomScoped {} private ImmutableMap<Key>, Binding>> indexBindings(Iterable Other Java examples (source code examples)Here is a short list of links related to this Java ServletScopesTest.java source code file: |
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