Qore FixedLengthUtil Module Reference
1.0
|
Structured line iterator for abstract data allowing efficient "pipelined" processing. More...
Public Member Functions | |
private *hash | checkOptions (*hash opts) |
Validate and prepare global fixed-length options. More... | |
bool | checkTransition (*string from, *string to) |
A verification function to be called for each line. This method can be overridden to achieve a begin-to-end validation of the whole input file. More... | |
constructor (hash spec, *hash opts) | |
Instantiates the FixedLengthAbstractIterator object. More... | |
*hash | getValue () |
Returns the current record as a hash. More... | |
string | identifyType (string input_line) |
Identify a fixed-length line type using identifyTypeImpl(), that may be overridden if necessary. More... | |
*string | identifyTypeImpl (string input_line) |
Identify a fixed-length line type, given the raw line string. This method performs a lookup to a precalculated table based on line lengths (see constructor()). In case different criteria are needed, eg. when two line types in a spec have the same length and no unique resolving rule are specified, this method needs to be overridden, and will throw an exception, because the precalculated mapping will be empty. More... | |
any | transform (any value, hash type) |
parses the input value based on global configuration and the current field definition | |
Private Attributes | |
hash | m_resolve_by_length |
hash of type without rule, i.e.potentially conflicting records; key = record length, value = list of no-rule type names | |
Structured line iterator for abstract data allowing efficient "pipelined" processing.
Validate and prepare global fixed-length options.
opts | Options passed during class instantiation. |
A verification function to be called for each line. This method can be overridden to achieve a begin-to-end validation of the whole input file.
from | Type of previous line being processed |
to | Type of the current line being processed |
Instantiates the FixedLengthAbstractIterator object.
spec | Fixed-length line specification; see Specification Hash for more information |
opts | Global options; see Global Options for more information |
FIXED-LENGTH-UTIL-INVALID-SPEC | invalid record specification; invalid type or missing field length |
*hash FixedLengthUtil::FixedLengthAbstractIterator::getValue | ( | ) |
Identify a fixed-length line type using identifyTypeImpl(), that may be overridden if necessary.
input_line | Input line to be identified |
FIXED-LENGTH-UTIL-NON-MATCHING-TYPE | input line cannot be matched to a known record |
Identify a fixed-length line type, given the raw line string. This method performs a lookup to a precalculated table based on line lengths (see constructor()). In case different criteria are needed, eg. when two line types in a spec have the same length and no unique resolving rule are specified, this method needs to be overridden, and will throw an exception, because the precalculated mapping will be empty.
input_line | Input line to be identified |
FIXED-LENGTH-UTIL-NON-MATCHING-TYPE | input line cannot be matched to a known record or the input line's length does not match the expected length |