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Integrate contextual logging with regsitry app

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This changeset integrates contextual logging into the registry web application.
Idiomatic context use is attempted within the current webapp layout. The
functionality is centered around making lifecycle objects (application and
request context) into contexts themselves. Relevant data has been moved into
the context where appropriate.  We still have some work to do to factor out the
registry.Context object and the dispatching functionality to remove some
awkward portions.

The api tests were slightly refactored to use a test environment to eliminate
common code.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
This commit is contained in:
Stephen J Day 2015-02-06 16:19:19 -08:00
parent d5b7c41ada
commit 3e84069959
9 changed files with 266 additions and 129 deletions
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13
docs/app_test.go
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@ -12,6 +12,7 @@ import (
"github.com/docker/distribution/configuration"
"github.com/docker/distribution/storage"
"github.com/docker/distribution/storagedriver/inmemory"
"golang.org/x/net/context"
)
// TestAppDispatcher builds an application with a test dispatcher and ensures
@ -22,6 +23,7 @@ func TestAppDispatcher(t *testing.T) {
driver := inmemory.New()
app := &App{
Config: configuration.Configuration{},
Context: context.Background(),
router: v2.Router(),
driver: driver,
registry: storage.NewRegistryWithDriver(driver),
@ -37,19 +39,19 @@ func TestAppDispatcher(t *testing.T) {
varCheckingDispatcher := func(expectedVars map[string]string) dispatchFunc {
return func(ctx *Context, r *http.Request) http.Handler {
// Always checks the same name context
if ctx.Repository.Name() != ctx.vars["name"] {
if ctx.Repository.Name() != getName(ctx) {
t.Fatalf("unexpected name: %q != %q", ctx.Repository.Name(), "foo/bar")
}
// Check that we have all that is expected
for expectedK, expectedV := range expectedVars {
if ctx.vars[expectedK] != expectedV {
t.Fatalf("unexpected %s in context vars: %q != %q", expectedK, ctx.vars[expectedK], expectedV)
if ctx.Value(expectedK) != expectedV {
t.Fatalf("unexpected %s in context vars: %q != %q", expectedK, ctx.Value(expectedK), expectedV)
}
}
// Check that we only have variables that are expected
for k, v := range ctx.vars {
for k, v := range ctx.Value("vars").(map[string]string) {
_, ok := expectedVars[k]
if !ok { // name is checked on context
@ -135,6 +137,7 @@ func TestAppDispatcher(t *testing.T) {
// TestNewApp covers the creation of an application via NewApp with a
// configuration.
func TestNewApp(t *testing.T) {
ctx := context.Background()
config := configuration.Configuration{
Storage: configuration.Storage{
"inmemory": nil,
@ -152,7 +155,7 @@ func TestNewApp(t *testing.T) {
// Mostly, with this test, given a sane configuration, we are simply
// ensuring that NewApp doesn't panic. We might want to tweak this
// behavior.
app := NewApp(config)
app := NewApp(ctx, config)
server := httptest.NewServer(app)
builder, err := v2.NewURLBuilderFromString(server.URL)