Class: HTTPApp

Inherits:
Application show all
Defined in:
lib/appswarm/http/http_app.rb

Defined Under Namespace

Classes: ControllerInfo, Instance

Constant Summary collapse

@@mutex = 
Mutex.new

Instance Attribute Summary collapse

Attributes inherited from Application

#cluster, #running

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Application

#appswarmBaseDir, #config, #getApp, #getAppDataPath, #getAppDataPaths, #getAppDataWritePath, getAppDir, #getAppDir, #getAppId, #getAppName, #getService, #info, #log, #monitor, protect, provides, #provides?, providing, #providingAPIs, #quit?, requirements, requires, #retrieveConfig, #shortName, #warning, #withApp, #withAppFork

Constructor Details

#initialize(cluster, options) ⇒ HTTPApp

Returns a new instance of HTTPApp.



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# File 'lib/appswarm/http/http_app.rb', line 26

def initialize(cluster,options)
  super(cluster,options)
  @port=options[:httpPort]
  @instances=options[:instances]
  @instances||=[]
  @controllers=[]
  getControllerPaths.each{|cntrlPath|loadController(cntrlPath)}
  provides(:httpApp)
end

Instance Attribute Details

#instanceName ⇒ Object (readonly)

Returns the value of attribute instanceName.



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# File 'lib/appswarm/http/http_app.rb', line 24

def instanceName
  @instanceName
end

#instances ⇒ Object (readonly)

Returns the value of attribute instances.



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# File 'lib/appswarm/http/http_app.rb', line 24

def instances
  @instances
end

#port ⇒ Object (readonly)

Returns the value of attribute port.



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# File 'lib/appswarm/http/http_app.rb', line 24

def port
  @port
end

Class Method Details

.index(name) ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 20

def self.index(name)
  @index=name
end

Instance Method Details

#controllerName(controller) ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 202

def controllerName(controller)
  controller.gsub(/.*\//,"").gsub(".rb","").camelCase
end

#createInstance(name) ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 51

def createInstance(name)
  i=getInstanceByName(name)
  return i if i
  inst=Instance.new(self.class.to_s,cluster.createInstanceId,name,getAppName)
  @instances<<inst
  inst
end

#defaultInstance ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 70

def defaultInstance
  createInstance("default")
end

#deleteInstance(instance) ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 59

def deleteInstance(instance)
  case instance
    when String
      instance=getInstanceByName(instance)
    when Instance
    else
      instance=nil
  end
  @instances.delete(instance) if instance
end

#findFile(fileName) ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 111

def findFile(fileName)
  f=File.join(getAppDir,fileName)
  return f if File.exists?(f)
  #f=File.join(getAppDir,"..",fileName)
  #return f if File.exists?(f)
  return nil
end

#getController(hash) ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 211

def getController(hash)
  info=@controllers.select{|c|
    ok=true
    hash.each{|k,v|
      ok&=(c.send(k)==v)
    }
    ok
  }[0]
  return nil unless info
  info=loadController(info.filePath) if $DEBUGGING
  info
end

#getControllerPaths ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 195

def getControllerPaths
  path=File.join(getAppDir,"controllers","*.rb")
  log "Controllers #{Dir[path]}"
  Dir[path]
end

#getInstanceByName(name) ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 74

def getInstanceByName(name)
  @instances.select{|i|i.instanceName==name}[0]
end

#halt ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 191

def halt
  @p.stop if @p.is_a?(HTTPProvider)
end

#handle(req, res, args, sessionId, instance, currentUrl) ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 78

def handle(req,res,args,sessionId,instance,currentUrl)
  begin
    controller,func,*dummy=req.path_info.sub(/^\//,'').split("/")
    log "path_info #{req.path_info}"
    log "HANDLE #{controller} :: #{func}"
    controller=getController(:urlPart=>controller) if controller
    if controller.nil?
      controller||=mainController
      func,*dummy=req.path_info.sub(/^\//,'').split("/")
    end
    raise "NoController defined" if controller.nil?
    func||="index"

    path_rest=dummy

    l=controller.klass.new(self,instance)
    l.run(instance,res,func,args,path_rest,currentUrl)
  rescue Object=>e
    # maybe a file ?
    path=req.path_info
    log "PATH:",path
    
    #path=File.join(getAppDir,"static",path)
    log "PATH:",path
    unless render_static(res,path)
      path=path.gsub(/[^\/]*\//,'')
      unless render_static(res,path)
       raise e
      end
    end
  end
end

#instancesFor(provider, appName) ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 150

def instancesFor(provider,appName)
  instances=retrieveConfig[:instances].content
  if instances

  else
    if @instances
      instances=@instances.map{|i|[i,i]}
    else
      instances=[["defaultInstance",""]]
    end
  end
  instances.map{|instance|
    instanceName,url=instance
    [instanceName,"/"+appName+"/"+url]
  }
end

#loadController(controllerPath) ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 224

def loadController(controllerPath)
  log "Loading Controller #{controllerPath}"
  controllerName=controllerName(controllerPath)
  log controllerName
  controllerPrg=File.load(controllerPath)
  return unless controllerPrg
  log "OK loaded"
  self.class.send(:class_eval,controllerPrg) #create class
  
  klass=self.class.class_eval(controllerName)

  info=ControllerInfo.new(controllerName,klass,controllerPath,controllerName.underscored)

  @controllers<<info unless @controllers.select{|c|c.klass==klass}.length>0
  info
end

#machine ⇒ Object

FIXME



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# File 'lib/appswarm/http/http_app.rb', line 183

def machine
  "localhost"
end

#mainController ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 206

def mainController
  cntrl=@controllers.select{|c|c.name.downcase==getAppName.downcase}[0]
  cntrl||@controllers[0] #FIXME: take controller with same name
end

#quit ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 36

def quit
  saveRunningInstances
  super
end

#render_static(res, filename) ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 119

def render_static(res,filename)
  paths=[File.join(getAppDir,"static/"),File.expand_path('../static',__FILE__)]
  paths.each{|path|
    cp=File.join(path,filename)
    #cp=findFile(File.join("static",filename))
    if cp and File.file?(cp)
      f=File.open(cp,"r")
      c=f.read
      f.close
      res.body=c
      res["Content-Type"]=case filename.gsub(/.*\./,"")
       when "css"
        "text/css"
       when "svg"
        "image/svg+xml"
       when "ico"
         "image/icon"
       else
        "text/plain"
      end
      return true
    end
  }
  false
end

#run ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 146

def run
  # do nothing for mow
end

#serviceAddress(instance, path = "") ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 177

def serviceAddress(instance,path="")
  raise "Instance not found!" unless @instances.member?(instance)
  [getAppName,instance,path]
end

#settings ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 47

def settings
  HTTPAppSettings.new(self)
end

#startup ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 41

def startup
  runStoredInstances
  super
end

#stop ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 187

def stop
  @p.stop if @p.is_a?(HTTPProvider)
end

#url ⇒ Object 



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# File 'lib/appswarm/http/http_app.rb', line 167

def url
  base=""
  base= @p.url if @p
  mc=mainController
  log "ControllerName #{mc} #{mc.urlPart}"
  log "BASE #{base}"
  return base+"/"+mc.urlPart if mc
  "/"
end