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init imports (fully compatible stdlib branch)

tags/v0.9.0
jimzhan 9 vuotta sitten
commit
b6e775d28e
11 muutettua tiedostoa jossa 928 lisäystä ja 0 poistoa
Jaettu näkymä Näytä diff tilastot
  1. +202
    -0
      LICENSE
  2. +11
    -0
      Makefile
  3. +145
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      README.md
  4. +89
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      default.go
  5. +25
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      internal/consts.go
  6. +74
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      internal/module.go
  7. +73
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      logger.go
  8. +61
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      main.go
  9. +36
    -0
      modules/cache.go
  10. +38
    -0
      modules/logger.go
  11. +174
    -0
      router.go

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LICENSE Näytä tiedosto

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/

TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

1. Definitions.

"License" shall mean the terms and conditions for use, reproduction,
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"Object" form shall mean any form resulting from mechanical
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"Work" shall mean the work of authorship, whether in Source or
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5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
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6. Trademarks. This License does not grant permission to use the trade
names, trademarks, service marks, or product names of the Licensor,
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7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
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whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
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incidental, or consequential damages of any character arising as a
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Work (including but not limited to damages for loss of goodwill,
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the Work or Derivative Works thereof, You may choose to offer,
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License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
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defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.

END OF TERMS AND CONDITIONS

APPENDIX: How to apply the Apache License to your work.

To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "{}"
replaced with your own identifying information. (Don't include
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Copyright 2015 GoAnywhere (http://goanywhere.io).

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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Makefile Näytä tiedosto

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#
# Makefile
# jim, 2015-06-17 17:36
#

all:
@echo "Makefile needs your attention"


# vim:ft=make
#

+ 145
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README.md Näytä tiedosto

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<a href="#"><img alt="rex" src="https://raw.githubusercontent.com/go-rex/rex/assets/images/rex.png" width="160px" height="64px"></a>
===

Rex is a powerful framework for modular web development in Golang.

## Getting Started

Install the package, along with executable binary helper (**go 1.4** and greater is required):

```shell
$ go get -v github.com/goanywhere/rex/...
```

## Features
* Flexible Env-based configurations.
* Awesome routing system provided by [Gorilla/Mux](//github.com/gorilla/mux).
* Django-syntax like templating-language backed by [flosch/pongo](//github.com/flosch/pongo2).
* Non-intrusive/Modular design, extremely easy to use.
* Standard & modular system based on [http.Handler](http://godoc.org/net/http#Handler) interface.
* Command line tools
* Auto-compile for .go & .html
* Browser-based Live reload supports
* **Fully compatible with the [http.Handler](http://godoc.org/net/http#Handler)/[http.HandlerFunc](http://godoc.org/net/http#HandlerFunc) interface.**


After installing Go and setting up your [GOPATH](http://golang.org/doc/code.html#GOPATH), create your first server, we named it `server.go` here.

``` go
package main

import (
"io"
"net/http"

"github.com/goanywhere/rex"
)

func main() {
rex.Get("/", func(w http.ResponseWriter, r *http.Request) {
io.WriteString(w, "Hello World")
})
rex.Run()
}
```

Then start your server:
``` shell
rex run
```

You will now have a HTTP server running on `localhost:5000`.




## Settings

All settings on Rex can be accessed via `env`, which essentially stored in `os.Environ`. By using this approach you can compile your own settings files into the binary package for deployment without exposing the sensitive settings, it also makes configuration extremly easy & flexible via both command line & application.

``` go
package main

import (
"github.com/goanywhere/rex"
"github.com/goanywhere/x/env"
)

func index (ctx *rex.Context) {
ctx.Render("index.html")
}

func main() {
// Override default 5000 port here.
env.Set("PORT", 9394)

rex.Get("/", index)
rex.Run()
}
```

You will now have the HTTP server running on `0.0.0.0:9394`.

Hey, dude, why not just use those popular approaches, like file-based config? We know you'll be asking & we have the answer as well, [here](http://12factor.net/config).


## Modules

Modules work between http requests and the router, they are no different than the standard http.Handler. Existing modules (aka. middleware) from other frameworks like logging, authorization, session, gzipping are very easy to integrate into Rex. As long as it complies the `rex.Module` interface (shorcut to standard `func(http.Handler) http.Handler`), you can simply add one like this:

``` go
app.Use(modules.XSRF)
```


Since a module is just the standard http.Handler, writing a custom module is also pretty straightforward:

``` go
app.Use(func(next http.Handler) http.Handler {
return http.HandlerFunc(func(writer http.ResponseWriter, request *http.Request) {
log.Printf("Custom Middleware Module Started")
next.ServeHTTP(writer, request)
log.Printf("Custom Middleware Module Ended")
})
})
```

Using prefixed (aka. subrouter) router is exactly same as the main one:

```go
app := rex.new()
app.Get("/", func(w http.ResponseWriter, r *http.Request) {
io.WriteString(w, "index page")
})

user := app.Group("/users")
user.Use(func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Printf("this is a protected page")
next.ServeHTTP(writer, request)
})
})
```


## Frameworks comes & dies, will this be supported?

Positive! Rex is an internal/fundamental project at GoAnywhere. We developed it and we are going to continue using/improving it.


##Roadmap for v1.0


- [X] Env-Based Configurations
- [X] Test Suite
- [X] New Project Template
- [X] CLI Apps Integrations
- [X] Improved Template Rendering
- [X] Performance Boost
- [X] Hot-Compile Runner
- [X] Live Reload Integration
- [X] Template Functions
- [X] Common Modules
- [ ] Project Wiki
- [ ] Continuous Integration
- [ ] Stable API

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default.go Näytä tiedosto

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/* ----------------------------------------------------------------------
* ______ ___ __
* / ____/___ / | ____ __ ___ __/ /_ ___ ________
* / / __/ __ \/ /| | / __ \/ / / / | /| / / __ \/ _ \/ ___/ _ \
* / /_/ / /_/ / ___ |/ / / / /_/ /| |/ |/ / / / / __/ / / __/
* \____/\____/_/ |_/_/ /_/\__. / |__/|__/_/ /_/\___/_/ \___/
* /____/
*
* (C) Copyright 2015 GoAnywhere (http://goanywhere.io).
* ----------------------------------------------------------------------
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ----------------------------------------------------------------------*/
package rex

import (
"net/http"

"github.com/goanywhere/rex/modules"
)

var DefaultMux = New()

// Get is a shortcut for mux.HandleFunc(pattern, handler).Methods("GET"),
// it also fetch the full function name of the handler (with package) to name the route.
func Get(pattern string, handler interface{}) {
DefaultMux.register("GET", pattern, handler)
}

// Head is a shortcut for mux.HandleFunc(pattern, handler).Methods("HEAD")
// it also fetch the full function name of the handler (with package) to name the route.
func Head(pattern string, handler interface{}) {
DefaultMux.register("HEAD", pattern, handler)
}

// Options is a shortcut for mux.HandleFunc(pattern, handler).Methods("OPTIONS")
// it also fetch the full function name of the handler (with package) to name the route.
// NOTE method OPTIONS is **NOT** cachable, beware of what you are going to do.
func Options(pattern string, handler interface{}) {
DefaultMux.register("OPTIONS", pattern, handler)
}

// Post is a shortcut for mux.HandleFunc(pattern, handler).Methods("POST")
// it also fetch the full function name of the handler (with package) to name the route.
func Post(pattern string, handler interface{}) {
DefaultMux.register("POST", pattern, handler)
}

// Put is a shortcut for mux.HandleFunc(pattern, handler).Methods("PUT")
// it also fetch the full function name of the handler (with package) to name the route.
func Put(pattern string, handler interface{}) {
DefaultMux.register("PUT", pattern, handler)
}

// Delete is a shortcut for mux.HandleFunc(pattern, handler).Methods("DELETE")
// it also fetch the full function name of the handler (with package) to name the route.
func Delete(pattern string, handler interface{}) {
DefaultMux.register("Delete", pattern, handler)
}

// Group creates a new application group under the given path.
func Group(path string) *Router {
return DefaultMux.Group(path)
}

// FileServer registers a handler to serve HTTP requests
// with the contents of the file system rooted at root.
func FileServer(prefix, dir string) {
DefaultMux.FileServer(prefix, dir)
}

// Use appends middleware module into the serving list, modules will be served in FIFO order.
func Use(module func(http.Handler) http.Handler) {
DefaultMux.Use(module)
}

func Run() {
DefaultMux.Use(modules.Logger)
DefaultMux.Run()
}

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internal/consts.go Näytä tiedosto

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/* ----------------------------------------------------------------------
* ______ ___ __
* / ____/___ / | ____ __ ___ __/ /_ ___ ________
* / / __/ __ \/ /| | / __ \/ / / / | /| / / __ \/ _ \/ ___/ _ \
* / /_/ / /_/ / ___ |/ / / / /_/ /| |/ |/ / / / / __/ / / __/
* \____/\____/_/ |_/_/ /_/\__. / |__/|__/_/ /_/\___/_/ \___/
* /____/
*
* (C) Copyright 2015 GoAnywhere (http://goanywhere.io).
* ----------------------------------------------------------------------
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ----------------------------------------------------------------------*/
package internal

const Root = "rex.root"

+ 74
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internal/module.go Näytä tiedosto

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/* ----------------------------------------------------------------------
* ______ ___ __
* / ____/___ / | ____ __ ___ __/ /_ ___ ________
* / / __/ __ \/ /| | / __ \/ / / / | /| / / __ \/ _ \/ ___/ _ \
* / /_/ / /_/ / ___ |/ / / / /_/ /| |/ |/ / / / / __/ / / __/
* \____/\____/_/ |_/_/ /_/\__. / |__/|__/_/ /_/\___/_/ \___/
* /____/
*
* (C) Copyright 2015 GoAnywhere (http://goanywhere.io).
* ----------------------------------------------------------------------
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ----------------------------------------------------------------------*/
package internal

import (
"net/http"

"github.com/Sirupsen/logrus"
)

type Module struct {
cache http.Handler
stack []func(http.Handler) http.Handler
}

func (self *Module) build() http.Handler {
if self.cache == nil {
next := http.Handler(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {}))
// Activate modules in FIFO order.
for index := len(self.stack) - 1; index >= 0; index-- {
next = self.stack[index](next)
}
self.cache = next
}
return self.cache
}

// Use add the middleware module into the stack chain.
// Supported middleware modules:
// - http.Handler
// - func(http.Handler) http.Handler
func (self *Module) Use(mod interface{}) {
switch H := mod.(type) {
case http.Handler:
handler := func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
H.ServeHTTP(w, req)
next.ServeHTTP(w, req)
})
}
self.stack = append(self.stack, handler)

case func(http.Handler) http.Handler:
self.stack = append(self.stack, H)

default:
logrus.Fatal("Unsupported middleware module passed in.")
}
}

// Implements the net/http Handler interface and calls the middleware stack.
func (self *Module) ServeHTTP(w http.ResponseWriter, r *http.Request) {
self.build().ServeHTTP(w, r)
}

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logger.go Näytä tiedosto

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/* ----------------------------------------------------------------------
* ______ ___ __
* / ____/___ / | ____ __ ___ __/ /_ ___ ________
* / / __/ __ \/ /| | / __ \/ / / / | /| / / __ \/ _ \/ ___/ _ \
* / /_/ / /_/ / ___ |/ / / / /_/ /| |/ |/ / / / / __/ / / __/
* \____/\____/_/ |_/_/ /_/\__. / |__/|__/_/ /_/\___/_/ \___/
* /____/
*
* (C) Copyright 2015 GoAnywhere (http://goanywhere.io).
* ----------------------------------------------------------------------
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ----------------------------------------------------------------------*/
package rex

import "github.com/Sirupsen/logrus"

func Info(message string) {
logrus.Info(message)
}

func Infof(format string, args ...interface{}) {
logrus.Infof(format, args...)
}

func Debug(message string) {
logrus.Debug(message)
}

func Debugf(format string, args ...interface{}) {
logrus.Debugf(format, args...)
}

func Warn(message string) {
logrus.Warn(message)
}

func Warnf(format string, args ...interface{}) {
logrus.Warnf(format, args...)
}

func Error(message string) {
logrus.Error(message)
}

func Errorf(format string, args ...interface{}) {
logrus.Errorf(format, args...)
}

func Fatal(message string) {
logrus.Fatal(message)
}

func Fatalf(format string, args ...interface{}) {
logrus.Fatalf(format, args...)
}

func Panic(message string) {
logrus.Panic(message)
}

func Panicf(format string, args ...interface{}) {
logrus.Panicf(format, args...)
}

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main.go Näytä tiedosto

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/* ----------------------------------------------------------------------
* ______ ___ __
* / ____/___ / | ____ __ ___ __/ /_ ___ ________
* / / __/ __ \/ /| | / __ \/ / / / | /| / / __ \/ _ \/ ___/ _ \
* / /_/ / /_/ / ___ |/ / / / /_/ /| |/ |/ / / / / __/ / / __/
* \____/\____/_/ |_/_/ /_/\__. / |__/|__/_/ /_/\___/_/ \___/
* /____/
*
* (C) Copyright 2015 GoAnywhere (http://goanywhere.io).
* ----------------------------------------------------------------------
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ----------------------------------------------------------------------*/
package rex

import (
"flag"
"path/filepath"
"runtime"

"github.com/goanywhere/rex/internal"
"github.com/goanywhere/x/env"
"github.com/goanywhere/x/fs"
)

var (
options = struct {
debug bool
port int
maxprocs int
}{
debug: true,
port: 5000,
maxprocs: runtime.NumCPU(),
}
)

func init() {
// ----------------------------------------
// Project Root
// ----------------------------------------
var root = fs.Getcd(2)
env.Set(internal.Root, root)
env.Load(filepath.Join(root, ".env"))

// cmd arguments
flag.BoolVar(&options.debug, "debug", options.debug, "flag to toggle debug mode")
flag.IntVar(&options.port, "port", options.port, "port to run the application server")
flag.IntVar(&options.maxprocs, "maxprocs", options.maxprocs, "maximum cpu processes to run the server")

flag.Parse()
}

+ 36
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modules/cache.go Näytä tiedosto

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/* ----------------------------------------------------------------------
* ______ ___ __
* / ____/___ / | ____ __ ___ __/ /_ ___ ________
* / / __/ __ \/ /| | / __ \/ / / / | /| / / __ \/ _ \/ ___/ _ \
* / /_/ / /_/ / ___ |/ / / / /_/ /| |/ |/ / / / / __/ / / __/
* \____/\____/_/ |_/_/ /_/\__. / |__/|__/_/ /_/\___/_/ \___/
* /____/
*
* (C) Copyright 2015 GoAnywhere (http://goanywhere.io).
* ----------------------------------------------------------------------
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ----------------------------------------------------------------------*/
package modules

import "net/http"

// NoCache writes the proper response headers to inform
// the client side not to cache the response's content.
func NoCache(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
w.Header().Set("Pragma", "no-cache")
w.Header().Set("Expires", "0")
next.ServeHTTP(w, r)
})
}

+ 38
- 0
modules/logger.go Näytä tiedosto

@@ -0,0 +1,38 @@
/* ----------------------------------------------------------------------
* ______ ___ __
* / ____/___ / | ____ __ ___ __/ /_ ___ ________
* / / __/ __ \/ /| | / __ \/ / / / | /| / / __ \/ _ \/ ___/ _ \
* / /_/ / /_/ / ___ |/ / / / /_/ /| |/ |/ / / / / __/ / / __/
* \____/\____/_/ |_/_/ /_/\__. / |__/|__/_/ /_/\___/_/ \___/
* /____/
*
* (C) Copyright 2015 GoAnywhere (http://goanywhere.io).
* ----------------------------------------------------------------------
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ----------------------------------------------------------------------*/
package modules

import (
"net/http"
"time"

"github.com/Sirupsen/logrus"
)

func Logger(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
start := time.Now()
next.ServeHTTP(w, r)
logrus.Debugf("%s - %s (%v)", r.Method, r.URL.Path, time.Since(start))
})
}

+ 174
- 0
router.go Näytä tiedosto

@@ -0,0 +1,174 @@
/* ----------------------------------------------------------------------
* ______ ___ __
* / ____/___ / | ____ __ ___ __/ /_ ___ ________
* / / __/ __ \/ /| | / __ \/ / / / | /| / / __ \/ _ \/ ___/ _ \
* / /_/ / /_/ / ___ |/ / / / /_/ /| |/ |/ / / / / __/ / / __/
* \____/\____/_/ |_/_/ /_/\__. / |__/|__/_/ /_/\___/_/ \___/
* /____/
*
* (C) Copyright 2015 GoAnywhere (http://goanywhere.io).
* ----------------------------------------------------------------------
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ----------------------------------------------------------------------*/
package rex

import (
"fmt"
"net/http"
"path/filepath"
"reflect"
"runtime"
"time"

"github.com/goanywhere/rex/internal"
"github.com/gorilla/mux"
)

type Router struct {
mod *internal.Module
mux *mux.Router
ready bool
subrouters []*Router
}

func New() *Router {
return &Router{
mod: new(internal.Module),
mux: mux.NewRouter(),
}
}

// build constructs all router/subrouters along with their middleware modules chain.
func (self *Router) build() {
if !self.ready {
self.ready = true
// * activate router's middleware modules.
self.mod.Use(self.mux)

// * activate subrouters's middleware modules.
for index := 0; index < len(self.subrouters); index++ {
sr := self.subrouters[index]
sr.mod.Use(sr.mux)
}
}
}

// register adds the http.Handler/http.HandleFunc into Gorilla mux.
func (self *Router) register(method string, pattern string, handler interface{}) {
// finds the full function name (with package) as its mappings.
var name = runtime.FuncForPC(reflect.ValueOf(handler).Pointer()).Name()

switch H := handler.(type) {
case http.Handler:
self.mux.Handle(pattern, H).Methods(method).Name(name)

case func(http.ResponseWriter, *http.Request):
self.mux.HandleFunc(pattern, H).Methods(method).Name(name)

default:
Fatalf("Unsupported handler (%s) passed in.", name)
}
}

// Get is a shortcut for mux.HandleFunc(pattern, handler).Methods("GET"),
// it also fetch the full function name of the handler (with package) to name the route.
func (self *Router) Get(pattern string, handler interface{}) {
self.register("GET", pattern, handler)
}

// Head is a shortcut for mux.HandleFunc(pattern, handler).Methods("HEAD")
// it also fetch the full function name of the handler (with package) to name the route.
func (self *Router) Head(pattern string, handler interface{}) {
self.register("HEAD", pattern, handler)
}

// Options is a shortcut for mux.HandleFunc(pattern, handler).Methods("OPTIONS")
// it also fetch the full function name of the handler (with package) to name the route.
// NOTE method OPTIONS is **NOT** cachable, beware of what you are going to do.
func (self *Router) Options(pattern string, handler interface{}) {
self.register("OPTIONS", pattern, handler)
}

// Post is a shortcut for mux.HandleFunc(pattern, handler).Methods("POST")
// it also fetch the full function name of the handler (with package) to name the route.
func (self *Router) Post(pattern string, handler interface{}) {
self.register("POST", pattern, handler)
}

// Put is a shortcut for mux.HandleFunc(pattern, handler).Methods("PUT")
// it also fetch the full function name of the handler (with package) to name the route.
func (self *Router) Put(pattern string, handler interface{}) {
self.register("PUT", pattern, handler)
}

// Delete is a shortcut for mux.HandleFunc(pattern, handler).Methods("DELETE")
// it also fetch the full function name of the handler (with package) to name the route.
func (self *Router) Delete(pattern string, handler interface{}) {
self.register("Delete", pattern, handler)
}

// Group creates a new application group under the given path prefix.
func (self *Router) Group(prefix string) *Router {
var mod = new(internal.Module)
self.mux.PathPrefix(prefix).Handler(mod)
var mux = self.mux.PathPrefix(prefix).Subrouter()

router := &Router{mod: mod, mux: mux}
self.subrouters = append(self.subrouters, router)
return router
}

// FileRouter registers a handler to serve HTTP requests
// with the contents of the file system rooted at root.
func (self *Router) FileServer(prefix, dir string) {
if abs, err := filepath.Abs(dir); err == nil {
fs := http.StripPrefix(prefix, http.FileServer(http.Dir(abs)))
self.mux.PathPrefix(prefix).Handler(fs)
} else {
Fatalf("Failed to setup file server: %v", err)
}
}

// Name returns route name for the given request, if any.
func (self *Router) Name(r *http.Request) (name string) {
var match mux.RouteMatch
if self.mux.Match(r, &match) {
name = match.Route.GetName()
}
return name
}

func (self *Router) Use(module interface{}) {
self.mod.Use(module)
}

// ServeHTTP dispatches the request to the handler whose
// pattern most closely matches the request URL.
func (self *Router) ServeHTTP(w http.ResponseWriter, r *http.Request) {
self.build()
self.mod.ServeHTTP(w, r)
}

// Run starts the application server to serve incoming requests at the given address.
func (self *Router) Run() {
runtime.GOMAXPROCS(options.maxprocs)

go func() {
time.Sleep(500 * time.Millisecond)
Infof("Application server is listening at %d", options.port)
}()

if err := http.ListenAndServe(fmt.Sprintf(":%d", options.port), self); err != nil {
Fatalf("Failed to start the server: %v", err)
}
}

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