Module: ClusterFuncs

Included in:
Appswarm, TestBed
Defined in:
lib/appswarm/cluster_funcs.rb

Instance Method Summary collapse

Instance Method Details

#allUpAndRunning ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 52

def allUpAndRunning
  @apps.select{|a|a.running==false}.length==0
end

#checkRequirements(appClass) ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 8

def checkRequirements(appClass)
  reqs=appClass.requirements
  reqs.each{|req|
    if getApp(req).nil?
      f=@appClasses.select{|klass|klass.providing.member?(req)}
      if f.length==0
        raise "PROBLEM: #{req} not found!"
      else
        debug "STARTING REQUIRED #{f[0]}"
        run(f[0].to_s.gsub(/App$/,""))
      end
      
    end
  }
end

#createInstanceId ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 153

def createInstanceId
  Crypt::hexdigest(rand.to_s+Time.new.to_s)
end

#debug(*p) ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 138

def debug(*p)
  log_direct(caller[0],nil,p.map{|x|x.to_s}.join(" "))
end

#getApplicationTypes ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 42

def getApplicationTypes
  @appClasses
end

#getApps(type) ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 27

def getApps(type)
  if type.is_a?(Class)
    return @apps.select{|app|app.is_a?(type)}
  end

  if type.is_a?(String)
    type+="App" unless type=~/App$/
    return @apps.select{|app|app.class.to_s==type}
  end

  @apps.select{|app|
    app.provides?(type)
  }
end

#getLocalApplications ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 24

def getLocalApplications
  @apps
end

#getNewInstanceName(klass) ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 3

def getNewInstanceName(klass)
  @instanceId||=0
  @instanceId+=1
  klass.to_s+@instanceId.to_s
end

#getOrCreate(appName) ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 46

def getOrCreate(appName)
  a=getApp(appName)
  a=run(appName) unless a
  a
end

#log_direct(place, instance, what) ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 141

def log_direct(place,instance,what)
  place.gsub!(/\/.*\//,'/..../')
  i=""
  i="[#{instance}]" if instance

  t=Time.new.strftime("%Y-%m-%d %H:%M:%S")
  what.split("\n").each{|line|
    log_line "[#{t}][#{place}]#{i} "+line
  }

end

#log_line(line) ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 135

def log_line(line)
  puts line
end

#run(appName, *params) ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 70

def run(appName,*params)
  return nil if @stopping
  log "Starting #{appName}"
  appClass=@appClasses.select{|appClass|
    appName.to_s+"App"==appClass.to_s
  }[0]
  raise "Class #{appName} not Found" unless appClass
  checkRequirements(appClass)


  log "NAME:",appName,params
  a=nil

  @stopMutex.synchronize {
    return if @stopped
    if params.is_a?(Array)
      params=params[0]
    end
    if params.is_a?(Hash)
      return if @apps.select{|app|app.getAppId==params[:appId]}.length>0

      # FIXME: support multiple apps of same type running
      return if @apps.select{|app|
        app.class==appClass
      }.length>0
    end

    #return if getAppById()
    log "Running Testbed #{self}"
    options=@options
    if params
    if params.length>0
      if params[-1].is_a?(Hash)
        options=params[-1]
      end
    end
    end
    a=appClass.new(self,options)
    i=a.object_id
    y=Thread.new(a) {|a|
      Thread.current[:appName2]=appName
      begin
        @apps<<a
        log "TRYING TO START #{a}"

        a.startup
        a.running=true
        a.run
        debug "FINISHED #{a}"
      rescue Exception=>e
        log e,e.backtrace
      end
    }
    loop  do
      sleep 0.01
      break if @apps.member?(a)
    end
    y[:appName]=appName
    @tbedThreads||={}
    @tbedThreads[i]=y
    a
  }
  a
end

#runAndWait(appName, *params) ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 62

def runAndWait(appName,*params)
  app=run(appName,*params)
  while app.running==false
    sleep 0.1
    log "WAIT for #{app} to startup"
  end
end

#waitUntilAllUpAndRunning ⇒ Object 



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# File 'lib/appswarm/cluster_funcs.rb', line 56

def waitUntilAllUpAndRunning
  while not allUpAndRunning
    sleep 0.1
  end
end