Class: PGPool::Response

Inherits:
Object
  • Object
show all
Defined in:
lib/pgpool/response.rb

Overview

class: Response

Constant Summary collapse

OK = 
0
UNKNOWN =

Unknown Error (should not occur)

1
EOF =

EOF Error

2
NOMEM =

Memory shortage

3
READ =

Error while reading from the server

4
WRITE =

Error while writing to the server

5
TIMEOUT =

Timeout

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INVAL =

Argument(s) to the PCP command was invalid

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CONN =

Server connection error

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NOCONN =

No connection exists

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SOCK =

Socket error

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HOST =

Hostname resolution error

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BACKEND =

PCP process error on the server

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AUTH =

Authorization failure

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ERROR_MESSAGES = 
{
  OK:      'No error',
  UNKNOWN: 'Unknown Error',
  EOF:     'EOF Error',
  NOMEM:   'Memory shortage',
  READ:    'Error while reading from the server',
  WRITE:   'Error while writing to the server',
  TIMEOUT: 'Timeout',
  INVAL:   'Argument(s) to the PCP command was invalid',
  CONN:    'Server connection error',
  NOCONN:  'No connection exists',
  SOCK:    'Socket error',
  HOST:    'Hostname resolution error',
  BACKEND: 'PCP process error on the server',
  AUTH:    'Authorization failure'
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(node_id, command) ⇒ Response

Returns a new instance of Response.



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# File 'lib/pgpool/response.rb', line 41

def initialize(node_id, command)
  @status    = command.exitstatus
  @node_info = success? ? NodeInfo.build_from_raw_data(node_id, command.stdout) : command.stderr

  self
end

Instance Attribute Details

#node_info ⇒ Object (readonly)

Returns the value of attribute node_info.



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# File 'lib/pgpool/response.rb', line 39

def node_info
  @node_info
end

#status ⇒ Object (readonly)

Returns the value of attribute status.



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# File 'lib/pgpool/response.rb', line 39

def status
  @status
end

Instance Method Details

#error? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pgpool/response.rb', line 52

def error?
  status != OK
end

#error_message ⇒ Object 



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# File 'lib/pgpool/response.rb', line 56

def error_message
  ERROR_MESSAGES[@status]
end

#inspect ⇒ Object 



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# File 'lib/pgpool/response.rb', line 64

def inspect
  to_hash.inspect
end

#success? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/pgpool/response.rb', line 48

def success?
  status == OK
end

#to_hash ⇒ Object 



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# File 'lib/pgpool/response.rb', line 60

def to_hash
  { status: @status, node_info: @node_info }
end

#to_s ⇒ Object 



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# File 'lib/pgpool/response.rb', line 68

def to_s
  "#{inspect}"
end