Class: ManageEngine::APMConfig

Inherits:
Object
  • Object
show all
Defined in:
lib/agent/configuration/am_configuration.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ APMConfig

Returns a new instance of APMConfig.



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# File 'lib/agent/configuration/am_configuration.rb', line 14

def initialize
@obj = ManageEngine::APMObjectHolder.instance

    #@config = @obj.util.readProperties(@obj.constants.apm_conf)
configureFile
@agenthost = Socket.gethostname
assignConfig
@obj.log.setLevel @config["apminsight.log.level"]
@instance_id  = 0
@agent_enabled = false
@alreadyconnected = checkAgentInfo
@site24x7 = checkLicenseFile
if (@site24x7)
  @site24x7url = @license_key.start_with?('eu_') ? @obj.constants.site24x7EUurl : @license_key.start_with?('cn_') ? @obj.constants.site24x7CNurl : @license_key.start_with?('au_') ? @obj.constants.site24x7AUurl : @license_key.start_with?('in_') ? @obj.constants.site24x7INurl : @license_key.start_with?('gd_') ? @obj.constants.site24x7GDurl : @license_key.start_with?('jp_') ? @obj.constants.site24x7JPurl : @obj.constants.site24x7USurl
end
@db_operations =["select","insert","update","delete"]
urlMergePattern
@hostType = getHostType
@obj.log.info "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
@obj.log.info "APP HOME #{File.absolute_path(".")} "
@obj.log.info "APP HOME #{Dir.pwd} "
@obj.log.info "Agent Version : #{ManageEngine::APMInsight::VERSION}"
#@obj.log.info "Configuration : "
#@obj.log.info "Hostname : #{@agenthost}"
@obj.log.info "Host Type: #{@hostType}"
@obj.log.info "Agent Already Connected : #{@alreadyconnected}"
@obj.log.info "Agent Enabled : #{@agent_enabled}"
@obj.log.info "Allowed DB Operations : #{@db_operations}"
#     @config.each do|key,val|
#     @obj.log.info "#{key} => #{val}"
#       end
@obj.log.info "URL Merge Patterns"
@url_merge_pattern.each do |key, val|
  @obj.log.info "#{key} => #{val}"
end
@obj.log.info "@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@"
@app_db="dummydb"
@app_dispatcher = getDispatcher
@lastupdatedtime=File.mtime(@obj.constants.apm_conf).to_i
end

Instance Attribute Details

#agent_enabled ⇒ Object (readonly)

Returns the value of attribute agent_enabled.



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# File 'lib/agent/configuration/am_configuration.rb', line 12

def agent_enabled
  @agent_enabled
end

#agenthost ⇒ Object (readonly)

Returns the value of attribute agenthost.



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# File 'lib/agent/configuration/am_configuration.rb', line 10

def agenthost
  @agenthost
end

#agentport ⇒ Object (readonly)

Returns the value of attribute agentport.



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# File 'lib/agent/configuration/am_configuration.rb', line 10

def agentport
  @agentport
end

#alreadyconnected ⇒ Object (readonly)

Returns the value of attribute alreadyconnected.



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# File 'lib/agent/configuration/am_configuration.rb', line 10

def alreadyconnected
  @alreadyconnected
end

#apdex_t ⇒ Object (readonly)

Returns the value of attribute apdex_t.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def apdex_t
  @apdex_t
end

#apmhost ⇒ Object (readonly)

Returns the value of attribute apmhost.



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# File 'lib/agent/configuration/am_configuration.rb', line 10

def apmhost
  @apmhost
end

#apmport ⇒ Object (readonly)

Returns the value of attribute apmport.



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# File 'lib/agent/configuration/am_configuration.rb', line 10

def apmport
  @apmport
end

#app_db ⇒ Object

Returns the value of attribute app_db.



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# File 'lib/agent/configuration/am_configuration.rb', line 13

def app_db
  @app_db
end

#app_dispatcher ⇒ Object

Returns the value of attribute app_dispatcher.



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# File 'lib/agent/configuration/am_configuration.rb', line 13

def app_dispatcher
  @app_dispatcher
end

#appname ⇒ Object (readonly)

Returns the value of attribute appname.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def appname
  @appname
end

#connect_interval ⇒ Object (readonly)

Returns the value of attribute connect_interval.



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# File 'lib/agent/configuration/am_configuration.rb', line 12

def connect_interval
  @connect_interval
end

#connection_retry ⇒ Object (readonly)

Returns the value of attribute connection_retry.



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# File 'lib/agent/configuration/am_configuration.rb', line 12

def connection_retry
  @connection_retry
end

#db_operations ⇒ Object (readonly)

Returns the value of attribute db_operations.



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# File 'lib/agent/configuration/am_configuration.rb', line 12

def db_operations
  @db_operations
end

#dbmetric_overflow_t ⇒ Object (readonly)

Returns the value of attribute dbmetric_overflow_t.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def dbmetric_overflow_t
  @dbmetric_overflow_t
end

#delayedStart ⇒ Object (readonly)

Returns the value of attribute delayedStart.



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# File 'lib/agent/configuration/am_configuration.rb', line 10

def delayedStart
  @delayedStart
end

#hostType ⇒ Object (readonly)

Returns the value of attribute hostType.



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# File 'lib/agent/configuration/am_configuration.rb', line 10

def hostType
  @hostType
end

#instance_id ⇒ Object (readonly)

Returns the value of attribute instance_id.



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# File 'lib/agent/configuration/am_configuration.rb', line 10

def instance_id
  @instance_id
end

#is_secured ⇒ Object (readonly)

Returns the value of attribute is_secured.



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# File 'lib/agent/configuration/am_configuration.rb', line 12

def is_secured
  @is_secured
end

#lastupdatedtime ⇒ Object

Returns the value of attribute lastupdatedtime.



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# File 'lib/agent/configuration/am_configuration.rb', line 13

def lastupdatedtime
  @lastupdatedtime
end

#license_key ⇒ Object (readonly)

Returns the value of attribute license_key.



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# File 'lib/agent/configuration/am_configuration.rb', line 10

def license_key
  @license_key
end

#logs_dir ⇒ Object (readonly)

Returns the value of attribute logs_dir.



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# File 'lib/agent/configuration/am_configuration.rb', line 12

def logs_dir
  @logs_dir
end

#metric_overflow_t ⇒ Object (readonly)

Returns the value of attribute metric_overflow_t.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def metric_overflow_t
  @metric_overflow_t
end

#proxy_host ⇒ Object (readonly)

Returns the value of attribute proxy_host.



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# File 'lib/agent/configuration/am_configuration.rb', line 12

def proxy_host
  @proxy_host
end

#proxy_pass ⇒ Object (readonly)

Returns the value of attribute proxy_pass.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def proxy_pass
  @proxy_pass
end

#proxy_port ⇒ Object (readonly)

Returns the value of attribute proxy_port.



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# File 'lib/agent/configuration/am_configuration.rb', line 12

def proxy_port
  @proxy_port
end

#proxy_user ⇒ Object (readonly)

Returns the value of attribute proxy_user.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def proxy_user
  @proxy_user
end

#proxyneeded ⇒ Object (readonly)

Returns the value of attribute proxyneeded.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def proxyneeded
  @proxyneeded
end

#site24x7 ⇒ Object (readonly)

Returns the value of attribute site24x7.



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# File 'lib/agent/configuration/am_configuration.rb', line 10

def site24x7
  @site24x7
end

#site24x7url ⇒ Object (readonly)

Returns the value of attribute site24x7url.



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# File 'lib/agent/configuration/am_configuration.rb', line 10

def site24x7url
  @site24x7url
end

#sql_capture ⇒ Object (readonly)

Returns the value of attribute sql_capture.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def sql_capture
  @sql_capture
end

#sql_capture_params ⇒ Object (readonly)

Returns the value of attribute sql_capture_params.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def sql_capture_params
  @sql_capture_params
end

#sql_trace_t ⇒ Object (readonly)

Returns the value of attribute sql_trace_t.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def sql_trace_t
  @sql_trace_t
end

#trace_overflow_t ⇒ Object (readonly)

Returns the value of attribute trace_overflow_t.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def trace_overflow_t
  @trace_overflow_t
end

#trans_trace ⇒ Object (readonly)

Returns the value of attribute trans_trace.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def trans_trace
  @trans_trace
end

#trans_trace_t ⇒ Object (readonly)

Returns the value of attribute trans_trace_t.



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# File 'lib/agent/configuration/am_configuration.rb', line 11

def trans_trace_t
  @trans_trace_t
end

#txn_skip_listen ⇒ Object (readonly)

Returns the value of attribute txn_skip_listen.



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# File 'lib/agent/configuration/am_configuration.rb', line 12

def txn_skip_listen
  @txn_skip_listen
end

#url_merge_pattern ⇒ Object (readonly)

Returns the value of attribute url_merge_pattern.



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# File 'lib/agent/configuration/am_configuration.rb', line 12

def url_merge_pattern
  @url_merge_pattern
end

Instance Method Details

#assignConfig ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 177

def assignConfig
initValues
 @config.each do |key,value|
   value = checkAndGetEnvValue(value)
   case key
   when "application.name" then @appname=value
                                if (ENV.has_key?('APM_APPLICATION_NAME'))
                                  @appname = ENV['APM_APPLICATION_NAME']
                                end
   when "apm.host" then @apmhost=value
   when "apm.port" then @apmport=isInteger(@apmport,value)
   when "license.key" then @license_key=value
                           if (@license_key.empty? && ENV.has_key?('S247_LICENSE_KEY'))
                             @license_key = ENV['S247_LICENSE_KEY']
                           end
   when "behind.proxy" then @proxyneeded=@obj.util.getBooleanValue value
   when "agent.server.port" then @agentport=isInteger(@agentport,value)
   when "apdex.threshold" then @apdex_t=isFloat(@apdex_t,value)
   when "transaction.trace.enabled" then @trans_trace=@obj.util.getBooleanValue value
   when "transaction.trace.threshold" then @trans_trace_t=isFloat(@trans_trace_t,value)
   when "sql.capture.enabled" then @sql_capture=@obj.util.getBooleanValue value
   when "transaction.trace.sql.parametrize" then @sql_capture_params=@obj.util.getBooleanValue value
   when "transaction.trace.sql.stacktrace.threshold" then @sql_trace_t=isFloat(@sql_trace_t,value)
   when "proxy.server.host" then @proxy_host=value
   when "proxy.server.port" then @proxy_port=isInteger(@proxy_port,value)
   when "proxy.auth.username" then @proxy_user=value
   when "proxy.auth.password" then @proxy_pass=@obj.util.decrypt value, @license_key
                                      if (@proxy_pass == nil)
                                        @proxy_pass = value
                                      end
   when "apm.protocol.https" then @is_secured=@obj.util.getBooleanValue value
   when "apminsight.log.dir" then @logs_dir=value
   when "apminsight.log.level" then @obj.log.setLevel value
   when "agent.connection.retry" then @connection_retry=value #Not in Conf - yet to come
   when "agent.polling.interval" then   @connect_interval=isInteger(@connect_interval, value)#Not in Conf - yet to come
   when "transaction.skip.listening" then @txn_skip_listen=@obj.util.getArray value.gsub("\s", ""),","
   when "metricstore.metric.bucket.size" then @metric_overflow_t = isInteger(@metric_overflow_t, value)
     when "metricstore.dbmetric.bucket.size" then @dbmetric_overflow_t = isInteger(@dbmetric_overflow_t, value)
     when "transaction.tracestore.size" then @trace_overflow_t = isInteger(@trace_overflow_t, value)
   when "agent.delay.start" then @delayedStart=@obj.util.getBooleanValue value
  end
 end
   store_encrypted_data(@config)
end

#checkAgentInfo ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 100

def checkAgentInfo
  if FileTest.exist?(@obj.constants.agent_conf)
    @obj.log.debug "Status : Agent Already Connected"
    props = @obj.util.readProperties(@obj.constants.agent_conf)
    instance_id = props["agent.id"]
    
    if (instance_id == nil || instance_id == "")
      # If instance id is not found or empty, it means the apminsight.info is being modified by user
      # Ignore all its entry
      @obj.log.warn "File: #{@obj.constants.agent_conf} is corrupted. Agent will continue ignoring these values."
      return false
    else
      @instance_id = instance_id
    end
    
    @agent_enabled= @obj.util.getBooleanValue props["agent.enabled"]
    true
  else
    @obj.log.info "Status : Agent not connected"
    false
  end
end

#checkAndGetEnvValue(data) ⇒ Object

Checks whether the given value is Environment Variable



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# File 'lib/agent/configuration/am_configuration.rb', line 223

def checkAndGetEnvValue(data)
  begin
      value = "#{data}"[/\{(.*)\}/,1]
      if (value != nil && ENV.has_key?(value))
        return data.gsub(/\{.*\}/, ENV[value])
    end
  rescue Exception=>e
  end
  return data
end

#checkLicenseFile ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 123

def checkLicenseFile
    @obj.constants.setLicenseKey @license_key
  if(@license_key.start_with?('APMI_')) 
    @obj.log.info "Connecting to App Manager"
    false
  else
    @obj.log.info "Connecting to Site24x7"
    true
  end
end

#configureFile ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 55

def configureFile
  begin
    if(FileTest.exist?(@obj.constants.apm_conf))
      #conf file exists in APPlication Home
        @obj.log.debug "Config File Exists. It is read from #{@obj.constants.apm_conf}"
      @config = @obj.util.readProperties(@obj.constants.apm_conf)
        secureConfFile "#{@obj.constants.apm_conf}"
    else
      gemSpecs = Gem.loaded_specs[@obj.constants.s247_apm_gem]
      if (gemSpecs == nil)
        gemSpecs = Gem.loaded_specs[@obj.constants.apm_gem]
      end
      gem_conf = gemSpecs.full_gem_path
      #gem_conf = File.join(gem_conf, 'lib')
      gem_conf = File.join(gem_conf, 'conf')
      gem_conf = File.join(gem_conf, 'apminsight.conf')
      #conf file not exists in APPlications Home. So 1. copy it for gem locations
      if @obj.util.copyFiles gem_conf,@obj.constants.apm_conf
        #copied sucessfully
        @obj.log.info "Config File copied to application home directory. It is read from #{@obj.constants.apm_conf}"
        @config = @obj.util.readProperties(@obj.constants.apm_conf)
          secureConfFile "#{@obj.constants.apm_conf}"
      else
        #Problem in copying, so reading props from Conf file in Gem Location
        @obj.log.warn "Config File not copied. It is read from #{gem_conf}"
        @config = @obj.util.readProperties(gem_conf)
          secureConfFile gem_conf
      end
    end
  rescue Exception=>e
    @obj.log.info "[Exception] Problem in Reading Configuration File : \n File : #{@obj.constants.apm_conf}"
    @obj.log.logException "#{e.message}",e
    @config = @obj.util.readProperties(gem_conf)
  ensure
  end
end

#getAgentConfigData ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 334

def getAgentConfigData
  agentconfig = Hash.new
  agentconfig["last.modified.time"]=@lastupdatedtime*1000
  agentconfig["apdex.threshold"]=@apdex_t
  agentconfig["sql.capture.enabled"]=0
  if @sql_capture
    agentconfig["sql.capture.enabled"]=1
  end
  agentconfig["transaction.trace.enabled"]=0
  if @trans_trace
    agentconfig["transaction.trace.enabled"]=1
  end
  agentconfig["transaction.trace.threshold"]=@trans_trace_t
  agentconfig["transaction.trace.sql.parametrize"]=0
  if @sql_capture_params
    agentconfig["transaction.trace.sql.parametrize"]=1
  end
  agentconfig["transaction.trace.sql.stacktrace.threshold"]=@sql_trace_t
  agentconfig["transaction.tracking.request.interval"]=1
  agentconfig
end

#getAgentInfo ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 296

def getAgentInfo
  data =  Hash.new
  agentdata = Hash.new
  agentdata = {"application.type"=>"RUBY","application.name"=>@appname,"hostname"=>@agenthost,"port"=>@agentport,"agent.version"=>ManageEngine::APMInsight::MAJOR_VERSION}
  if (@hostType != nil)
    agentdata["host.type"]=@hostType
  end
  data["agent_info"]=agentdata
  data["environment"]=getEnvData
  data["custom_config_info"]=getAgentConfigData
  data
end

#getDispatcher ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 356

def getDispatcher
  
  @obj.log.info "Server: #{ENV['SERVER_SOFTWARE']}"
  
    dispatcher = "unknown"
    if defined?(PhusionPassenger) then
      dispatcher = "passenger"
    end
    if defined?(Unicorn) then
      dispatcher = "unicorn"
    end
    if defined?(Rainbows) then
      dispatcher = "rainbows"
    end
    dispatcher
end

#getEnvData ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 309

def getEnvData
  env =  Hash.new
  begin
    env["OS"] = Gem::Platform.local.os
    env["OS Version"] = Gem::Platform.local.version
    env["OS Arch"] = Gem::Platform.local.cpu
    env["Ruby Version"] = "#{RUBY_VERSION}"
      gemSpecs = Gem.loaded_specs[@obj.constants.s247_apm_gem]
      if (gemSpecs == nil)
        gemSpecs = Gem.loaded_specs[@obj.constants.apm_gem]
      end
      if (gemSpecs != nil)
        env["Agent Installed Path"] = gemSpecs.full_gem_path
      end
    
#     ENV.to_hash.each do |key, value|
#       env[key] = value
#     end
  env["Application Path"] = "#{Dir.pwd}"
  rescue Exception=>e
    @obj.log.warn "Error in capturing env data. #{e.message}"
  end
  env
end

#getHostType ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 259

def getHostType
  begin
      # Check for AWS environment
    url = URI.parse('http://169.254.169.254/latest/meta-data/') # AWS metadata url
      request = Net::HTTP::Get.new(url.path)
    response = Net::HTTP.start(url.host, url.port, :read_timeout => 2) {|http| http.request(request)}
      if (response.kind_of? Net::HTTPOK)
        @hostType = "AWS"
        return @hostType
      end
    rescue Exception => e
    end
    
    begin
      #Check for Azure environment
      url = URI.parse('http://169.254.169.254/metadata/v1/maintenance') # Azure metadata url
      request = Net::HTTP::Get.new(url.path)
      response = Net::HTTP.start(url.host, url.port, :read_timeout => 2) {|http| http.request(request)}
      if (response.kind_of? Net::HTTPOK)
        @hostType = "AZURE"
        return @hostType
      end
  rescue Exception => e
  end
  
    begin
      # Check for Heroku env. In the backgroud it is using AWS EC2, hence sending as AWS
      if (ENV.has_key?('DYNO') || ENV.has_key?('STACK'))
        @hostType = "AWS"
        return @hostType
      end
    rescue Exception => e
    end
  
    @hostType = nil
end

#initValues ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 154

def initValues
  @apmport=8080
  @appname="My Application"
  @proxyneeded = false
  @proxy_host="localhost"
  @proxy_port=80
  @proxy_user=""
  @proxy_pass=""
  @is_secured=false
  @logs_dir="./log"
  @connection_retry = 0
  @connect_interval = 60
  @apdex_t=0.5
  @txn_skip_listen=Array.new
  @trans_trace_t=2
  @sql_trace_t=3
  @metric_overflow_t=250
    @dbmetric_overflow_t=500
  @trace_overflow_t=30
  @site24x7url = @obj.constants.site24x7USurl #default agent communication URL
    @delayedStart = false
end

#isFloat(default, value) ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 383

def isFloat default,value
  if @obj.util.is_float value
    value.to_f
  else
    default.to_f
    @obj.log.info "Problem in getting Integer Value #{value} .. So setting default value #{default} "
  end
end

#isInteger(default, value) ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 373

def isInteger default,value
  if @obj.util.is_integer value
    value.to_i
  else
    @obj.log.info "Problem in getting Integer Value #{value} .. So setting default value #{default} "
    default.to_i
  end

end

#secureConfFile(file) ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 92

def secureConfFile(file)
  begin
    File.chmod(0600, file)
  rescue Exception => e
    @obj.log.warn "Unable to secure the conf file #{file}"
  end
end

#store_encrypted_data(config) ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 234

def store_encrypted_data config
  data = config["proxy.auth.password"]
  if (data != nil && @obj.util.decrypt(data, @license_key) == nil) # checking whether data is already encrypted
    begin
      file_contents = ""
        conf_file = File.open(@obj.constants.apm_conf, 'r')
        conf_file.read.each_line do |line|
          if line.start_with?("proxy.auth.password")
            file_contents += "proxy.auth.password=" + @obj.util.encrypt(config["proxy.auth.password"], @license_key)
          else
            file_contents += line
          end
          #file_contents += "\n"
        end #end of do read loop
        conf_file.close
        conf_file = File.open(@obj.constants.apm_conf, "w+")
        conf_file.puts file_contents
        conf_file.close
        file_contents = nil # clearing memory
    rescue Exception=>e
      @obj.log.logException "Error while encrypting file", e
    end
  end # if already encrypted
end

#update_config(configInfo) ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 392

def update_config configInfo
  filepath = @obj.constants.apm_conf
  f = "apminsight.conf.new"
  begin
    propsFile=File.open(filepath, 'r')
    file = File.new(f,"w+")
          propsFile.read.each_line do |line|
            line.strip!
            if (line[0] != ?# and line[0] != ?=)
                i = line.index('=')
               if (i)
        key1 = line[0..i - 1].strip
        if configInfo.has_key?(key1)
          file.puts "#{key1}=#{configInfo[key1]}\n"
        else
          file.puts "#{line}\n"
        end
              else
        file.puts "#{line}\n"
              end
    else
      file.puts "#{line}\n"
            end
           end
  rescue Exception=>e
    @obj.log.info "Problem in Reading / Writing Property File :  #{e.message} "
    @obj.log.error "#{e.backtrace}"
  ensure
      propsFile.close
      file.close
  end
  res = @obj.util.copyFiles f, filepath
  if res
    @obj.log.info "copyFiles result = #{res}"
    #delete apminsight.conf.new has to be done
  end
  configureFile
  assignConfig
end

#updateAgentInfoFile(props) ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 146

def updateAgentInfoFile(props)
  @instance_id = props["agent.id"]
  @agent_enabled= @obj.util.getBooleanValue props["agent.enabled"]
  @obj.util.writeProperties(@obj.constants.agent_conf,props)
  
  secureConfFile(@obj.constants.agent_conf)
end

#urlMergePattern ⇒ Object 



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# File 'lib/agent/configuration/am_configuration.rb', line 134

def urlMergePattern
  @url_merge_pattern = Hash.new
  begin
    if (FileTest.exist?(@obj.constants.mergepattern_conf))
      @url_merge_pattern=@obj.util.readProperties(@obj.constants.mergepattern_conf)
    end
  rescue Exception => e
    @obj.log.info "[Exception] Problem in Reading Configuration File : \n File : #{@obj.constants.mergepattern_conf}"
    @obj.log.logException "#{e.message}",e
  end
end