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Diffstat (limited to 'Godeps/_workspace/src/github.com/rs/xhandler/chain.go')
-rw-r--r--Godeps/_workspace/src/github.com/rs/xhandler/chain.go93
1 files changed, 0 insertions, 93 deletions
diff --git a/Godeps/_workspace/src/github.com/rs/xhandler/chain.go b/Godeps/_workspace/src/github.com/rs/xhandler/chain.go
deleted file mode 100644
index 042274d17..000000000
--- a/Godeps/_workspace/src/github.com/rs/xhandler/chain.go
+++ /dev/null
@@ -1,93 +0,0 @@
-package xhandler
-
-import (
- "net/http"
-
- "golang.org/x/net/context"
-)
-
-// Chain is an helper to chain middleware handlers together for an easier
-// management.
-type Chain []func(next HandlerC) HandlerC
-
-// UseC appends a context-aware handler to the middleware chain.
-func (c *Chain) UseC(f func(next HandlerC) HandlerC) {
- *c = append(*c, f)
-}
-
-// Use appends a standard http.Handler to the middleware chain without
-// lossing track of the context when inserted between two context aware handlers.
-//
-// Caveat: the f function will be called on each request so you are better to put
-// any initialization sequence outside of this function.
-func (c *Chain) Use(f func(next http.Handler) http.Handler) {
- xf := func(next HandlerC) HandlerC {
- return HandlerFuncC(func(ctx context.Context, w http.ResponseWriter, r *http.Request) {
- n := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
- next.ServeHTTPC(ctx, w, r)
- })
- f(n).ServeHTTP(w, r)
- })
- }
- *c = append(*c, xf)
-}
-
-// Handler wraps the provided final handler with all the middleware appended to
-// the chain and return a new standard http.Handler instance.
-// The context.Background() context is injected automatically.
-func (c Chain) Handler(xh HandlerC) http.Handler {
- ctx := context.Background()
- return c.HandlerCtx(ctx, xh)
-}
-
-// HandlerFC is an helper to provide a function (HandlerFuncC) to Handler().
-//
-// HandlerFC is equivalent to:
-// c.Handler(xhandler.HandlerFuncC(xhc))
-func (c Chain) HandlerFC(xhf HandlerFuncC) http.Handler {
- ctx := context.Background()
- return c.HandlerCtx(ctx, HandlerFuncC(xhf))
-}
-
-// HandlerH is an helper to provide a standard http handler (http.HandlerFunc)
-// to Handler(). Your final handler won't have access the context though.
-func (c Chain) HandlerH(h http.Handler) http.Handler {
- ctx := context.Background()
- return c.HandlerCtx(ctx, HandlerFuncC(func(ctx context.Context, w http.ResponseWriter, r *http.Request) {
- h.ServeHTTP(w, r)
- }))
-}
-
-// HandlerF is an helper to provide a standard http handler function
-// (http.HandlerFunc) to Handler(). Your final handler won't have access
-// the context though.
-func (c Chain) HandlerF(hf http.HandlerFunc) http.Handler {
- ctx := context.Background()
- return c.HandlerCtx(ctx, HandlerFuncC(func(ctx context.Context, w http.ResponseWriter, r *http.Request) {
- hf(w, r)
- }))
-}
-
-// HandlerCtx wraps the provided final handler with all the middleware appended to
-// the chain and return a new standard http.Handler instance.
-func (c Chain) HandlerCtx(ctx context.Context, xh HandlerC) http.Handler {
- return New(ctx, c.HandlerC(xh))
-}
-
-// HandlerC wraps the provided final handler with all the middleware appended to
-// the chain and returns a HandlerC instance.
-func (c Chain) HandlerC(xh HandlerC) HandlerC {
- for i := len(c) - 1; i >= 0; i-- {
- xh = c[i](xh)
- }
- return xh
-}
-
-// HandlerCF wraps the provided final handler func with all the middleware appended to
-// the chain and returns a HandlerC instance.
-//
-// HandlerCF is equivalent to:
-// c.HandlerC(xhandler.HandlerFuncC(xhc))
-func (c Chain) HandlerCF(xhc HandlerFuncC) HandlerC {
- return c.HandlerC(HandlerFuncC(xhc))
-}