Trying to debug the 20s delay in requests, it would help to know if the delay
happens before or after our code is called.
Right now all we know is that the delay happens before our first loggin line,
which is in RequestAuthenticator.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=182211285
DummyKeyringModule provides a fake string as the JSON credential used to instantiate a GoogleCredential. Of course this would not work and when the metric reporter requests a GoogleCredential in the main thread. This causes the FOSS build to crash on startup, because it defaults to use DummyKeyringModule.
This change allows a graceful handling of such an error by wrapping any calls to instantiate a metric reporter in a try block. Note that any attempt to write to stackdriver will still fail, but that happens in a different thread and will not make the whole program crash.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177183337
With Java 8 in GAE standard environment, we can now use standard java thread factory to run the metric reporter in the background in daemon mode, which would not interfere with basic scaling idle timeout as App Engine thread would.
Because the thread is not created by ThreadManager, no App Engine APIs can be called from it. We therefore use GoogleCredential instead of AppIdentityCredential as HttpRequestInitializer, and NetHttpTransport instead of UlrFetchTransport as HttpTransport.
MetricReporter is lazy injected because it depends on jsonCredential retrieved from CloudKms, which is not available in a test environment, causing FrontendServletTest and BackendServletTest to fail.
Some minor re-formatting with google-java-format on edited files.
Lastly removed moe comments in import statement, which makes the linter unhappy.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=172896227
HttpServlet#destroy() is not called on instance shutdown, so the metrics code was never shut down correctly before.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=156360866
This refactors RequestHandler so that it handles the construction of the request
component itself, rather than being handed a pre-built request component
instance constructed by the invoking servlet.
The motivation for this change is so that RequestHandler can be extended in
future CLs to compute authentication results, and can provide those results as
an available binding in the constructed request component. An alternative
approach could have been to compute the authentication results within
RequestModule itself, but I think it's clearer to keep business logic like
that outside of Dagger providers.
This CL makes the following individual changes:
- Adds request component builders, which implement a RequestComponentBuilder
interface so they can all be manipulated by RequestHandler
- Instead of obtaining request components via factory methods on the global
components, one now can have global-scoped bindings just inject the request
component builders (which requires adding a module to each global component
declaring the subcomponent). This follows the recommended approach here:
http://google.github.io/dagger/subcomponents.html
- Instead of exposing request components on the global component interface,
we now expose module-specific subclasses of RequestHandler that @Inject the
appropriate request component builder's provider and pass it to the superclass
(note that inheritance isn't strictly necessary here but saves boilerplate)
- RequestHandler now takes the Provider<RequestComponentBuilder> and builds
the component itself using its own fresh RequestModule instance. This provides
some nice encapsulation but is mainly needed for adding a RequestAuthModule
in future work.
- RequestHandler also takes UserService now, which can be provided via Dagger
by the subclass. Longer-term that will go away in favor of instead providing
AuthStrategy instances, some of which will use UserService internally.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=138815648
This change moves the reflective setAccessible() calls on the request component
methods (needed so that they can be invoked reflectively from RequestHandler)
to within Router itself, eliminating the need to manually call this from each
Servlet class and then pass in the resulting Method objects. Instead, we just
pass in the request component class and let Router do the rest.
Old comments say that cross-package reflection is not allowed on AppEngine, but
while it's quite possible this was once the case, I can't reproduce that
limitation, and the documentation seems to contradict any such restriction:
"""
An application is allowed full, unrestricted, reflective access to its own
classes. It can query any private members, call the method
java.lang.reflect.AccessibleObject.setAccessible(), and read/set private
members.
"""
https://cloud.google.com/appengine/docs/java/runtime#reflection
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=138693006
The dark lord Gosling designed the Java package naming system so that
ownership flows from the DNS system. Since we own the domain name
registry.google, it seems only appropriate that we should use
google.registry as our package name.
This change renames directories in preparation for the great package
rename. The repository is now in a broken state because the code
itself hasn't been updated. However this should ensure that git
correctly preserves history for each file.
2016-05-13 18:55:08 -04:00
Renamed from java/com/google/domain/registry/module/backend/BackendServlet.java (Browse further)
