@Nonnull
@Override
public <T> Collection<Qualified<T>> getQualifiedInstances(@Nonnull Class<T> type)
throws InstanceNotFoundException {
requireNonNull(type, ERROR_TYPE_NULL);
if (isClosed()) {
throw new InstanceNotFoundException(type, new ClosedInjectorException(this));
}
List<Qualified<T>> instances = new ArrayList<>();
List<com.google.inject.Binding<T>> bindings;
try {
bindings = delegate.findBindingsByType(TypeLiteral.get(type));
} catch (RuntimeException e) {
throw new InstanceNotFoundException(type, e);
}
if (bindings == null) {
throw new InstanceNotFoundException(type);
}
for (com.google.inject.Binding<T> binding : bindings) {
try {
Key<T> key = binding.getKey();
final T instance = delegate.getInstance(key);
instances.add(new Qualified<>(instance, translate(key.getAnnotation())));
} catch (RuntimeException e) {
throw new InstanceNotFoundException(type, e);
}
}
return instances;
}
public static BindingInfo create(Binding<?> binding, Key<?> boundKey, Object instance) {
BindingInfo bindingInfo = new BindingInfo();
bindingInfo.key = binding.getKey();
bindingInfo.boundKey = boundKey;
bindingInfo.boundInstance = instance;
bindingInfo.scope = binding.acceptScopingVisitor(new GuiceScopingVisitor());
return bindingInfo;
}
private Emitter findEmitter(String emitterType, List<Binding<Emitter>> emitterBindings) {
for (Binding<Emitter> binding : emitterBindings) {
if (Names.named(emitterType).equals(binding.getKey().getAnnotation())) {
return binding.getProvider().get();
}
}
return null;
}
private ContextListenerDefinition[] collectContextListenerDefinitions(Injector injector) {
List<ContextListenerDefinition> contextListeners = new ArrayList<ContextListenerDefinition>();
TypeLiteral<ContextListenerDefinition> LISTENER_DEFS =
TypeLiteral.get(ContextListenerDefinition.class);
for (Binding<ContextListenerDefinition> entry : injector.findBindingsByType(LISTENER_DEFS)) {
contextListeners.add(entry.getProvider().get());
}
// Convert to a fixed size array for speed.
return contextListeners.toArray(new ContextListenerDefinition[contextListeners.size()]);
}
@Override
final Annotation qualifies(final Key<?> requirement, final Binding<?> binding) {
final Class<? extends Annotation> markerType = requirement.getAnnotationType();
final Annotation qualifier = qualify(binding.getKey());
if (markerType.isInstance(qualifier)) {
return qualifier;
}
final Class<?> implementation = binding.acceptTargetVisitor(ImplementationVisitor.THIS);
return null != implementation ? implementation.getAnnotation(markerType) : null;
}
private HttpSessionListenerDefinition[] collectListenerDefinitions(Injector injector) {
List<HttpSessionListenerDefinition> sessionListeners =
new ArrayList<HttpSessionListenerDefinition>();
TypeLiteral<HttpSessionListenerDefinition> LISTENER_DEFS =
TypeLiteral.get(HttpSessionListenerDefinition.class);
for (Binding<HttpSessionListenerDefinition> entry :
injector.findBindingsByType(LISTENER_DEFS)) {
sessionListeners.add(entry.getProvider().get());
}
// Convert to a fixed size array for speed.
return sessionListeners.toArray(new HttpSessionListenerDefinition[sessionListeners.size()]);
}
@SuppressWarnings("unchecked")
@Override
public Void visit(PrivateElements privateElements) {
Set<Key<?>> exposedKeys = privateElements.getExposedKeys();
for (Element element : privateElements.getElements()) {
if (element instanceof Binding<?>) {
Binding<?> bindingElement = (Binding<?>) element;
if (exposedKeys.contains(bindingElement.getKey())) {
@SuppressWarnings("rawtypes")
GuicePrivateBindingVisitor bindingVisitor = new GuicePrivateBindingVisitor();
bindingElement.acceptTargetVisitor(bindingVisitor);
}
}
}
return null;
}
private static void validateBindingIsSingleton(Injector injector, Binding<?> binding)
throws InspectionException {
binding = resolveBinding(injector, binding);
boolean singleton =
binding.acceptScopingVisitor(
new BindingScopingVisitor<Boolean>() {
public Boolean visitEagerSingleton() {
return true;
}
public Boolean visitNoScoping() {
return false;
}
public Boolean visitScope(com.google.inject.Scope scope) {
return scope == Scopes.SINGLETON || scope == MoreScopes.LAZY_SINGLETON;
}
public Boolean visitScopeAnnotation(
java.lang.Class<? extends Annotation> scopeAnnotation) {
return false;
}
});
if (!singleton) {
throw new InspectionException(
"must be singleton or lazysingleton annotation or be interface!");
}
}
private static void setFieldContainerInstance(InspectionData data, Injector injector)
throws Throwable {
// no container instance for static data.
if (!data.isStatic) {
if (data.lookupClass == null) {
// if the container had an enclosing class and it's not static, make sure the lookup
// points to the enclosing class.
if (data.actualClass.getEnclosingClass() != null
&& !Modifier.isStatic(data.actualClass.getModifiers())) {
data.lookupClass = data.actualClass.getEnclosingClass();
}
}
// check if this is an enclosed class
if (data.lookupClass == null) {
Binding<?> binding = injector.getBinding(data.actualClass);
validateBindingIsSingleton(injector, binding);
data.fieldContainerInstance = binding.getProvider().get();
} else {
// inner classes must be annotated properly
Binding<?> binding = injector.getBinding(data.lookupClass);
validateBindingIsSingleton(injector, binding);
Object lookupObj = binding.getProvider().get();
// If this was an enclosed class, validate that it has InspectableContainer.
if (data.actualClass.getEnclosingClass() != null
&& !Modifier.isStatic(data.actualClass.getModifiers())) {
if (data.actualClass.getAnnotation(InspectableContainer.class) == null) {
throw new InspectionException("container must be annotated with InspectableContainer");
}
Constructor[] constructors = data.actualClass.getDeclaredConstructors();
if (constructors.length != 1) {
throw new InspectionException("wrong constructors length: " + constructors.length);
}
Class[] parameters = constructors[0].getParameterTypes();
if (parameters.length != 1 || !data.lookupClass.isAssignableFrom(parameters[0])) {
throw new InspectionException("wrong parameter count or type for constructor");
}
constructors[0].setAccessible(true);
data.fieldContainerInstance = constructors[0].newInstance(lookupObj);
} else {
data.fieldContainerInstance = lookupObj;
}
}
}
}
public void testSpi() throws Exception {
Module m1 =
new AbstractModule() {
@Override
protected void configure() {}
@Provides
@Named("foo")
String provideFoo(Integer dep) {
return "foo";
}
};
Module m2 =
new AbstractModule() {
@Override
protected void configure() {}
@Provides
Integer provideInt(@Named("foo") String dep) {
return 42;
}
};
Injector injector = Guice.createInjector(m1, m2);
Binding<String> stringBinding = injector.getBinding(Key.get(String.class, Names.named("foo")));
ProvidesMethodBinding<String> stringMethod =
stringBinding.acceptTargetVisitor(new BindingCapturer<String>());
assertEquals(m1, stringMethod.getEnclosingInstance());
assertEquals(
m1.getClass().getDeclaredMethod("provideFoo", Integer.class), stringMethod.getMethod());
assertEquals(
((HasDependencies) stringBinding).getDependencies(), stringMethod.getDependencies());
assertEquals(Key.get(String.class, Names.named("foo")), stringMethod.getKey());
Binding<Integer> intBinding = injector.getBinding(Integer.class);
ProvidesMethodBinding<Integer> intMethod =
intBinding.acceptTargetVisitor(new BindingCapturer<Integer>());
assertEquals(m2, intMethod.getEnclosingInstance());
assertEquals(
m2.getClass().getDeclaredMethod("provideInt", String.class), intMethod.getMethod());
assertEquals(((HasDependencies) intBinding).getDependencies(), intMethod.getDependencies());
assertEquals(Key.get(Integer.class), intMethod.getKey());
}
/**
* Resolves a binding to the ultimate destination, ensuring we can check the scope of the proper
* link.
*/
private static Binding<?> resolveBinding(final Injector injector, final Binding<?> binding) {
return binding.acceptTargetVisitor(
new BindingTargetVisitor<Object, Binding<?>>() {
@Override
public Binding<?> visit(InstanceBinding<? extends Object> link) {
return binding;
}
@Override
public Binding<?> visit(ProviderInstanceBinding<? extends Object> link) {
return binding;
}
@Override
public Binding<?> visit(ProviderKeyBinding<? extends Object> link) {
return resolveBinding(injector, injector.getBinding(link.getProviderKey()));
}
@Override
public Binding<?> visit(LinkedKeyBinding<? extends Object> link) {
return resolveBinding(injector, injector.getBinding(link.getLinkedKey()));
}
@Override
public Binding<?> visit(ExposedBinding<? extends Object> link) {
return binding;
}
@Override
public Binding<?> visit(UntargettedBinding<? extends Object> link) {
return binding;
}
@Override
public Binding<?> visit(ConstructorBinding<? extends Object> link) {
return binding;
}
@Override
public Binding<?> visit(ConvertedConstantBinding<? extends Object> link) {
return binding;
}
@Override
public Binding<?> visit(ProviderBinding<? extends Object> link) {
return resolveBinding(injector, injector.getBinding(link.getProvidedKey()));
}
});
}
@Inject
public void inject(Injector injector) {
final List<Binding<Emitter>> emitterBindings =
injector.findBindingsByType(new TypeLiteral<Emitter>() {});
emitter = findEmitter(emitterType, emitterBindings);
if (emitter == null) {
emitter = findEmitter(LogEmitterModule.EMITTER_TYPE, emitterBindings);
}
if (emitter == null) {
List<String> knownTypes = Lists.newArrayList();
for (Binding<Emitter> binding : emitterBindings) {
final Annotation annotation = binding.getKey().getAnnotation();
if (annotation != null) {
knownTypes.add(((Named) annotation).value());
}
}
throw new ISE(
"Uknown emitter type[%s]=[%s], known types[%s]",
EMITTER_PROPERTY, emitterType, knownTypes);
}
}
@Override
public void close() {
if (isClosed()) {
throw new ClosedInjectorException(this);
}
for (Key<?> key : delegate.getAllBindings().keySet()) {
try {
com.google.inject.Binding<?> binding = delegate.getExistingBinding(key);
if (!Scopes.isSingleton(binding)) {
continue;
}
invokeAnnotatedMethod(binding.getProvider().get(), PreDestroy.class);
} catch (ProvisionException pe) {
if (!(pe.getCause() instanceof TypeNotFoundException)) {
pe.printStackTrace();
}
}
}
synchronized (lock) {
closed = true;
}
}
private Module create(
final Logger LOG,
final LifecycleManager manager,
final Collection<Module> loadedModules,
final List<Module> rootModules,
final boolean isBootstrap,
final Module bootstrapModule)
throws Exception {
LOG.info("Creating {} injector", isBootstrap ? "bootstrap" : "main");
// Populate all the bootstrap state from the main module
final List<Element> elements = Elements.getElements(Stage.DEVELOPMENT, rootModules);
final Set<Key<?>> keys = ElementsEx.getAllInjectionKeys(elements);
final List<String> moduleNames = ElementsEx.getAllSourceModules(elements);
final Injector injector =
Guice.createInjector(
stage,
new LifecycleModule(),
new AbstractModule() {
@Override
protected void configure() {
bind(LifecycleManager.class).toInstance(manager);
requestInjection(manager);
}
},
Modules.override(
new DefaultModule() {
@Provides
public AutoContext getContext() {
return new AutoContext() {
@Override
public boolean hasProfile(String profile) {
return profiles.contains(profile);
}
@Override
public boolean hasModule(String className) {
return moduleNames.contains(className);
}
@Override
public boolean hasBinding(Key<?> key) {
return keys.contains(key);
}
};
}
})
.with(bootstrapModule));
PropertySource propertySource = injector.getInstance(PropertySource.class);
// Iterate through all loaded modules and filter out any modules that
// have failed the condition check. Also, keep track of any override modules
// for already installed modules.
final List<Module> overrideModules = new ArrayList<>();
final List<Module> moreModules = new ArrayList<>();
for (Module module : loadedModules) {
if (!isEnabled(propertySource, module.getClass().getName())) {
LOG.info("Ignoring module {}", module.getClass().getName());
continue;
}
Bootstrap bs = module.getClass().getAnnotation(Bootstrap.class);
if (isBootstrap == (bs != null) && evaluateConditions(LOG, injector, module)) {
OverrideModule override = module.getClass().getAnnotation(OverrideModule.class);
if (override != null) {
if (moduleNames.contains(override.value().getName())) {
LOG.info(" Adding override module {}", module.getClass().getSimpleName());
overrideModules.add(module);
}
} else {
LOG.info(" Adding conditional module {}", module.getClass().getSimpleName());
moreModules.add(module);
}
}
}
final List<Module> extModules = new ArrayList<>();
List<Binding<ModuleProvider>> moduleProviders =
injector.findBindingsByType(TypeLiteral.get(ModuleProvider.class));
for (Binding<ModuleProvider> binding : moduleProviders) {
Module module = binding.getProvider().get().get();
LOG.debug("Adding exposed bootstrap module {}", module.getClass().getName());
extModules.add(module);
}
LOG.debug("Root Modules : " + rootModules);
LOG.debug("More Modules : " + moreModules);
LOG.debug("Override Modules : " + overrideModules);
LOG.debug("Ext Modules : " + extModules);
LOG.debug("Created {} injector", isBootstrap ? "bootstrap" : "main");
Module m =
Modules.override(
new AbstractModule() {
@Override
protected void configure() {
install(Modules.combine(rootModules));
install(Modules.combine(moreModules));
}
})
.with(Modules.override(overrideModules).with(Modules.combine(extModules)));
return m;
}
private Void addBinding(Binding<? extends T> binding) {
return addBindingInfo(binding, binding.getKey(), null);
}
@Override
final Annotation qualifies(final Key<?> requirement, final Binding<?> binding) {
final Annotation qualifier = qualify(binding.getKey());
return qualifier instanceof Named ? qualifier : null;
}
@Override
public <T> Void visit(com.google.inject.Binding<T> command) {
GuiceBindingVisitor<T> bindingVisitor = new GuiceBindingVisitor<>();
command.acceptTargetVisitor(bindingVisitor);
return null;
}
@Override
final Annotation qualifies(final Key<?> requirement, final Binding<?> binding) {
final Annotation qualifier = qualify(binding.getKey());
return requirement.getAnnotation().equals(qualifier) ? qualifier : null;
}
@Override
final Annotation qualifies(final Key<?> requirement, final Binding<?> binding) {
final Annotation qualifier = qualify(binding.getKey());
return null != qualifier ? qualifier : BLANK_QUALIFIER;
}
@Override
public Object provide() {
return binding.getProvider().get();
}