Class: Aws::SessionStore::DynamoDB::Errors::DefaultHandler

Inherits:
BaseHandler
  • Object
show all
Defined in:
lib/aws/session_store/dynamo_db/errors/default_handler.rb

Overview

This class handles errors raised from DynamoDB.

Constant Summary collapse

HARD_ERRORS =

Array of errors that will always be passed up the Rack stack.

[
  Aws::DynamoDB::Errors::ResourceNotFoundException,
  Aws::DynamoDB::Errors::ConditionalCheckFailedException,
  Aws::SessionStore::DynamoDB::Errors::MissingSecretKeyError,
  Aws::SessionStore::DynamoDB::Errors::LockWaitTimeoutError
].freeze

Instance Method Summary collapse

Constructor Details

#initialize(raise_errors) ⇒ DefaultHandler

Determines behavior of DefaultErrorHandler

Parameters:

  • raise_errors (true) —

    Pass all errors up the Rack stack.



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# File 'lib/aws/session_store/dynamo_db/errors/default_handler.rb', line 16

def initialize(raise_errors)
  super()
  @raise_errors = raise_errors
end

Instance Method Details

#errors_string(error) ⇒ Object

Returns string to be placed in error stream



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# File 'lib/aws/session_store/dynamo_db/errors/default_handler.rb', line 36

def errors_string(error)
  str = []
  str << "Exception occurred: #{error.message}"
  str << 'Stack trace:'
  str += error.backtrace.map { |l| "  #{l}" }
  str.join("\n")
end

#handle_error(error, env = {}) ⇒ Object

Raises HARD_ERRORS up the Rack stack. Places all other errors in Racks error stream.



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# File 'lib/aws/session_store/dynamo_db/errors/default_handler.rb', line 23

def handle_error(error, env = {})
  raise error if HARD_ERRORS.include?(error.class) || @raise_errors

  store_error(error, env)
  false
end

#store_error(error, env = {}) ⇒ Object

Sends error to error stream



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# File 'lib/aws/session_store/dynamo_db/errors/default_handler.rb', line 31

def store_error(error, env = {})
  env['rack.errors'].puts(errors_string(error)) if env
end