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module Eeml
# Exception classes used by the EEML gem.
module Exceptions
#--
# TODO: have these inherit from a base parser error
#++
# Eeml being parsed was valid XML, but bad EEML.
class BadEeml < StandardError
attr_accessor :line_num, :node_name #no guarantees either is available
def to_s
extras = []
extras << " node name: '" + node_name + "'" if node_name
extras << " line_num: #{line_num}" if line_num
super.to_s + extras.join(',')
end
end
# Eeml being parsed was bad XML.
class BadXML < StandardError; end
class DataMissingValue < BadEeml; end
class DataHasMultipleUnits < BadEeml; end
class DataHasMultipleValues < BadEeml; end
class NoDataStreams < BadEeml; end
class MissingNamespace < BadEeml; end
#A structured exception which holds info about what was missing and from where.
#Note: Some reasons we don't just hold everything in an unstructured exception message:
#1. some bits might be useful for dev but not for the public,
#2. testing is simplified by having the missing node name recorded explicitly (rather than in a human-readable, changeable string).
class MissingNode < BadEeml
attr_accessor :base_node_name, :sought_description, :sought_xpath
def initialize(base_node_name, sought_description, sought_xpath = nil)
@base_node_name = base_node_name
@sought_description = sought_description
@sought_xpath = sought_xpath
end
def to_s
"Missing '#@sought_description' node from base node: '#@base_node_name'" +
(@sought_xpath ? "with xpath: '#@sought_xpath'" : "")
end
end
class MissingAttribute < BadEeml
attr_accessor :node_name, :attribute_name
def initialize(node_name, attribute_name)
@node_name = node_name
@attribute_name = attribute_name
end
def to_s
"Missing attribute '#@attribute_name' from node '#@node_name'"
end
end
end
end
Version data entries
21 entries across 21 versions & 1 rubygems