Package ru.vyarus.dropwizard.guice.module.installer.feature.jersey

Class ResourceInstaller

  • All Implemented Interfaces:
    FeatureInstaller, BindingInstaller, JerseyInstaller<java.lang.Object>, TypeInstaller<java.lang.Object>, WebInstaller, WithOptions
    public class ResourceInstaller
extends AbstractJerseyInstaller<java.lang.Object>
implements BindingInstaller, TypeInstaller<java.lang.Object>
    Jersey resource installer. Search classes annotated with Path or implementing interfaces annotated with Path (only directly implemented). Directly register instance in jersey context to force singleton. If we register it by type, then we could use prototype beans (resource instance created on each request), which will lead to performance overhead. To ovoid misuse, singleton resources are forced, but not for beans having explicit scope annotation. See InstallersOptions.ForceSingletonForJerseyExtensions.

    Prototype annotation may be used to force prototype scope on guice beans (prevent forced singleton). This may be useful to avoid providers usage and directly inject request, response and other request specific beans. Note that jersey managed resources may use direct injections even in singletons (as jersey will use proxies instead of direct dependencies - implicit providers).

    Since:
    01.09.2014

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void bind​(com.google.inject.Binder binder, java.lang.Class<?> type, boolean lazyMarker)
      Called to apply custom binding for installed feature.
      java.util.List<java.lang.String> getRecognizableSigns()
      Method used by extensions help report (GuiceBundle.Builder.printExtensionsHelp()) to show what signs this exact installer recognize so user could better understand extensions support specifics.
      void install​(io.dropwizard.core.setup.Environment environment, java.lang.Class<java.lang.Object> type)
      Full Injector could be obtained with InjectorLookup.getInjector(Environment).
      void install​(org.glassfish.jersey.internal.inject.AbstractBinder binder, com.google.inject.Injector injector, java.lang.Class<java.lang.Object> type)
      Called on jersey start to inject extensions into HK context.
      <T> void manualBinding​(com.google.inject.Binder binder, java.lang.Class<T> type, com.google.inject.Binding<T> binding)
      Called for extensions, resolved from guice bindings (in user modules).
      boolean matches​(java.lang.Class<?> type)
      NOTE: consider using ru.vyarus.dropwizard.guice.module.installer.util.FeatureUtils to simplify checks (for example, types most likely must be checks to be not abstract).
      void report()
      Called to log registered endpoints in dropwizard log fashion.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • ResourceInstaller

        public ResourceInstaller()

    • Method Detail

      • matches

        public boolean matches​(java.lang.Class<?> type)
        Description copied from interface: FeatureInstaller
        NOTE: consider using ru.vyarus.dropwizard.guice.module.installer.util.FeatureUtils to simplify checks (for example, types most likely must be checks to be not abstract).

        When type accepted by any extension it's registered in guice module.

        Specified by:
        matches in interface FeatureInstaller
        Parameters:
        type - type to check
        Returns:
        true if extension recognized, false otherwise

      • bind

        public void bind​(com.google.inject.Binder binder,
                 java.lang.Class<?> type,
                 boolean lazyMarker)
        Description copied from interface: BindingInstaller
        Called to apply custom binding for installed feature. By default, all found extensions are installed as binder.bind(type). This method will be called instead of default registration.

        Called only for non binding extensions (extensions that are not already bound in guice module.

        WARNING: may be called multiple times due to enabled bindings reporting! Be sure to produce correct logs.

        Specified by:
        bind in interface BindingInstaller
        Parameters:
        binder - guice binder
        type - extension class
        lazyMarker - true if extension is annotated with LazyBinding

      • manualBinding

        public <T> void manualBinding​(com.google.inject.Binder binder,
                              java.lang.Class<T> type,
                              com.google.inject.Binding<T> binding)
        Description copied from interface: BindingInstaller
        Called for extensions, resolved from guice bindings (in user modules). May be used to validate binding or do some additional bindings with existing binding. Binding is detected primarily by main key Binding.getKey(), but linked bindings (LinkedKeyBinding) are also checked for target key (LinkedKeyBinding.getLinkedKey()).

        LazyBinding flag is not used here because guicey will automatically throw an error if existing binding is annotated as lazy binding (which don't makes any sense).

        WARNING: may be called multiple times due to enabled bindings reporting! Be sure to produce correct logs.

        Specified by:
        manualBinding in interface BindingInstaller
        Type Parameters:
        T - extension type, used to connect extension class with binding
        Parameters:
        binder - guice binder
        type - extension class
        binding - binding declaration from guice module
        See Also:
        for errors reporting

      • install

        public void install​(org.glassfish.jersey.internal.inject.AbstractBinder binder,
                    com.google.inject.Injector injector,
                    java.lang.Class<java.lang.Object> type)
        Description copied from interface: JerseyInstaller
        Called on jersey start to inject extensions into HK context. Use JerseyBinding utility for proper types binding: it provide utilities for various jersey extensions and use special "bridges" for registration to respect guice scopes (most of the time we not register ready instance, but factory which delegates creation to guice).
        Specified by:
        install in interface JerseyInstaller<java.lang.Object>
        Parameters:
        binder - hk binder
        injector - guice injector
        type - extension type to register
        See Also:
        JerseyBinding, JerseyManaged

      • report

        public void report()
        Description copied from interface: FeatureInstaller
        Called to log registered endpoints in dropwizard log fashion. It's important to naturally show all dynamically resolved classes to easily catch errors. Use Reporter to simplify reporting.

        Method may do nothing if reporting not required

        Specified by:
        report in interface FeatureInstaller