Class: ManageEngine::APMWorker

Inherits:
Object
  • Object
show all
Defined in:
lib/agent/server/worker/am_worker.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ APMWorker

Returns a new instance of APMWorker.



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# File 'lib/agent/server/worker/am_worker.rb', line 10

def initialize
        @status = "initialized"
        @id = Process.pid
end

Instance Attribute Details

#id ⇒ Object

Returns the value of attribute id.



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# File 'lib/agent/server/worker/am_worker.rb', line 9

def id
  @id
end

Class Method Details

.getInstance ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 37

def self.getInstance
			if(@work==nil || @work.id!=Process.pid)
    	@work = ManageEngine::APMWorker.new
    end
    return @work
end

Instance Method Details

#checkforagentstatus ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 53

def checkforagentstatus
	prevState = @obj.config.agent_enabled
	@obj.config.checkAgentInfo
	if !@obj.config.agent_enabled
		@obj.log.info "Agent in Disabled State."
		if prevState
			@obj.log.info "Agent in Disabled State. Going to unsubscribe"
			@obj.instrumenter.doUnSubscribe
		end
	else
		if !prevState
			@obj.log.info "Agent in Active State."
			@obj.instrumenter.doSubscribe
		end
	end
end

#dc ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 75

def dc
  	    begin
              @obj.log.debug "[dc] collecting..."
              now = @obj.util.currenttimemillis
              result =  Array.new
              result.push(@obj.last_dispatch_time)
                              result.push(now)
              data = Array.new
              trd= nil;
              @last_dispatch_time = now
              if @obj.config.agent_enabled
                      d = @obj.parser.parse @obj.store.metrics_dup
                      if(d!=nil && d.has_key?("trace-data"))
                              trd = d.delete("trace-data");
                              #@obj.log.info "[dc] [TRACE] : #{d}"
                      end
                      #@obj.log.info "[dc] Data - #{d}"
                      if(d.length>0)
                              data =@obj.formatter.format d
                              #@obj.log.debug "[dc] Formatted Data - #{data}"
                      end
                      @obj.store.remove @obj.formatter.keysToRemove
              end #if
              fd = Array.new
              fd.push(data)
              if(trd!=nil)
              	fd.push(trd)
              end
		@obj.log.debug "[dc] data to store : #{fd}"
              send_save fd
		@obj.log.debug "[dc] collecting ends"
       rescue Exception=>e
              @obj.log.logException "[dc]  Exception during data Collection. #{e.message}",e
              @obj.shutdown=true
  	    end
end

#mapdb(res, dat) ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 241

def mapdb res,dat
	res[0] = res[0]+dat[0];
		if dat[1]<res[1]
		res[1]=dat[1]
	end
	if dat[2]>res[2]
		res[2]=dat[2]
	end
	res[3] = res[3]+dat[3]
	res
end

#mapdx(res, dat) ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 225

def mapdx res,dat
	res[0] = res[0]+dat[0];
	if dat[1]<res[1]
		res[1]=dat[1]
	end
	if dat[2]>res[2]
		res[2]=dat[2]
	end
	res[3] = res[3]+dat[3]
	res[5] = res[5]+dat[5]
	res[6] = res[6]+dat[6]
	res[7] = res[7]+dat[7]
	res[4] = (res[5].to_f + (res[6].to_f/2).to_f).to_f/res[3].to_f
	res
end

#merge(data) ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 201

def merge data
#                 @obj.log.info "BEFORE MERGE : #{data}"
		tdata =Hash.new ;
		data.each do |sd|
			name= sd[0]["ns"] + sd[0]["name"];
			if tdata.has_key?(name)
				if (sd[0]["name"]=="apdex")
					tdata[name][1] = mapdx(tdata[name][1],sd[1])
				else
					tdata[name][1] = mapdb(tdata[name][1],sd[1])
				end
			else
				tdata[name]=sd;
			end
		end
#@obj.log.info "MERGED DATA : #{tdata}"
		res = Array.new;
		tdata.each do|key,value|
			res.push(value);
	   end
	res
end

#read(p) ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 169

def read p
     data = Array.new
  File.open( p, "r+" ) { |f|
f.flock(File::LOCK_EX)
     	begin
        		f.each_line do |line|
	data.push(JSON.parse(line))
       		end
   f.truncate 0
   		rescue Exception=>e
         	@obj.log.logException "Exception while reading data #{e}",e
  		ensure
         	f.flock(File::LOCK_UN)
 		end
 	}
     data
end

#save(fd) ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 140

def save fd
        begin
        	data = fd.to_json;
        	write @obj.constants.agent_store,data
        rescue Exception=>e
        	@obj.log.logException "[dc]  Exception during save. #{e.message}",e
        end
end

#send_save(data) ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 149

def send_save data
        begin
        	if FileTest.exist?(@obj.constants.agent_lock)
                if Time.now.to_i - File.mtime(@obj.constants.agent_lock).to_i > (@obj.config.connect_interval).to_i
                        @obj.log.debug "worker send signal"
                        senddata data
                else
                        @obj.log.info "worker save signal"
                        save data
                end
        else
                @obj.log.info "worker save signals"
                save data
                write @obj.constants.agent_lock,"#{Process.pid}"
        end
        rescue Exception=>e
                @obj.log.logException "Exception in decision making send or save #{e.message}",e
        end
end

#senddata(d) ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 112

def senddata d
       # @obj.log.info("Send data --- #{d}")
        result =  Array.new
        result.push( (File.mtime(@obj.constants.agent_lock).to_f*1000).to_i)
        now = @obj.util.currenttimemillis
        result.push(now)
        write @obj.constants.agent_lock ,"#{Process.pid}"
        data  = read @obj.constants.agent_store
        data.push(d);
        tdata = Array.new;
        trdata = Array.new;
        data.each do |val|
                case val.size
                when 1
                        tdata.concat(val[0])
                when 2
                        tdata.concat(val[0])
                        trdata.concat(val[1])
                end
        end
        result.push(merge(tdata))
        resp = @obj.connector.post @obj.constants.connect_data_uri+@obj.config.instance_id,result
        if trdata.size>0
                result[2]=trdata;
                resp = @obj.connector.post @obj.constants.connect_trace_uri+@obj.config.instance_id,result
        end
end

#start ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 15

def start
        @obj = ManageEngine::APMObjectHolder.instance

				if @status=="working"
            @obj.log.debug "woker thread already started"
        elsif @status == "initialized"
        	@obj.log.info "start worker thread for - #{Process.pid} :: #{@status}  "
         #@obj.log.info "Starting APMWorker Thread #{Process.pid} "
         @apm = Thread.new do
                    @status  = 'working'
	                while !@obj.shutdown do
checkforagentstatus
updateConfig
                        dc
sleep (@obj.config.connect_interval).to_i
    	            end#w
                    @status= "end"
     	            @obj.log.debug "Worker thread ends"
        	end
        end
end

#stop ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 70

def stop
    dc
			@obj.shutdown = true;
end

#updateConfig ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 44

def updateConfig
	if(@obj.config.lastupdatedtime!=File.mtime(@obj.constants.apm_conf).to_i)
			@obj.log.info "Configuration File Changed... So Updating Configuration."
		@obj.config.lastupdatedtime=File.mtime(@obj.constants.apm_conf).to_i
		@obj.config.configureFile
		@obj.config.assignConfig
	end
end

#write(p, data) ⇒ Object 



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# File 'lib/agent/server/worker/am_worker.rb', line 188

def write (p,  data )
    File.open( p, "a+" ) { |f|
     	f.flock(File::LOCK_EX)
        begin
					f.write "#{data}\n"
        rescue Exception=>e
                @obj.log.logException "Exception while writing data #{e.message}",e
  ensure
            f.flock(File::LOCK_UN)
        end
    }
end