430 const ConstantConflictList = (
"name",
"struct",
"code",
"default");
433 const OptionKeys = ...;
437 const UserOptions = ...;
441 const ValidKeys = ...;
445 const OutputKeys = ...;
482 hash<auto> global_transform_opts = {} + {
483 "date.input_timezone": TimeZone::get(),
482 hash<auto> global_transform_opts = {} + {
…};
487 bool trunc_all = False;
494 bool allow_dot = False;
501 bool allow_output_dot = False;
504 *hash<string, AbstractDataField>
input;
555 bool output_nullable = False;
599 hash<auto> mapper_handler_context = {};
618 const DeprecatedGlobalTransformOptionMap = ...;
622 const _Mapper_Thread_Key =
"_Mapper_Thread_Key";
661 static hash<string, AbstractDataField> getInputFromHash(hash<auto> input);
663 static hash<string, AbstractDataField> getOutputFromHash(hash<auto> output, *hash<auto> mapv, *hash<auto> global_options);
698 AbstractDataProviderType getOutputType(hash<auto> hdesc, *hash<auto> mapdesc);
703 static AbstractDataProviderType getOutputType(hash<auto> hdesc, *hash<auto> mapdesc, *hash<auto> global_options, *
bool has_default_value);
708 static hash<string, AbstractDataField> getInputFromHashIntern(hash<auto> input, *reference<bool> structured_input);
713 static hash<string, AbstractDataField> getOutputFromHashIntern(hash<auto> output, *hash<auto> mapv, *hash<auto> global_options, *reference<bool> structured_output);
718 checkInputOutputOption(hash<auto> opts,
string var, *hash<auto> mapv);
723 setInputProvider(hash<auto> opts);
728 *hash<string, AbstractDataField> getFields(
string pfx, AbstractDataProviderType type);
733 setOutputProvider(hash<auto> opts);
739 setup(hash<auto> mapv, *hash<auto> opts);
1032 list<hash<auto>>
mapAll(AbstractIterator recs);
1098 *hash<auto>
mapBulk(hash<auto> rec, *hash<auto> crec);
1180 nothing
mapFieldIntern(reference<hash<auto>> h,
string key, hash<auto> rec,
bool do_list,
int list_size);
1190 removeHashOutputKey(reference<auto> output, list<auto> path,
int offset);
1196 writeHashOutput(reference<auto> output,
auto value, list<auto> path,
int offset);
1230 auto mapFieldType(
string key, hash<auto> mapping, AbstractDataProviderType type,
auto value, hash<auto> rec,
auto v);
1283 static AbstractDataProviderType getInputType(*
string type);
1481 AbstractDataProviderRecordIterator
i;
abstract base class for hash iterator mappping classes based on a mapper object and an iterator input...
Definition Mapper.qm.dox.h:1289
list< hash > mapBulk(int size)
performs bulk mapping; if the iterator does not support bulk mapping then it is simulated in this met...
bool next()
Moves the current position of the iterator to the next element; returns False if there are no more el...
bool valid()
returns True if the iterator is currently pointing at a valid element, False if not
constructor(Qore::AbstractIterator iter)
creates the iterator from the arguments passed
bool hasBulk()
returns True if the iterator supports bulk mode; this method returns False (the default)
Qore::AbstractIterator i
input iterator; AbstractIterator::getValue() must return a hash
Definition Mapper.qm.dox.h:1295
describes a data type that accepts any value; stores "string.max_size_chars" as a type attribute for ...
Definition Mapper.qm.dox.h:1372
hash< string, bool > getReturnTypeHash(*bool simple)
returns a hash of base types returned by this type
string getDesc()
Returns the description.
bool isAssignableFrom(Type t)
returns True if this type can be assigned from values of the argument type
*hash< string, hash< DataProviderTypeOptionInfo > > getSupportedOptions()
returns supported options
bool isAssignableFrom(AbstractDataProviderType t)
returns True if this type can be assigned from values of the argument type
constructor(*hash< auto > options)
creates the object
const SupportedOptions
supports a max_size_chars option for strings; to be enforced externally
Definition Mapper.qm.dox.h:1377
auto acceptsValue(auto value)
returns the value if the value can be assigned to the type
*Type getValueType()
returns the base type for the type, if any
*AbstractDataProviderType getElementType()
returns the subtype (for lists or hashes) if there is only one
*hash< string, AbstractDataField > getFields()
returns the fields of the data structure; if any
hash< string, bool > getAcceptTypeHash(*bool simple)
returns a hash of base types accepted by this type
string getName()
returns the type name
this class is a base class for mapping data; see Mapper Examples for usage examples
Definition Mapper.qm.dox.h:426
checkOutputBulkOperation()
raises an error if no output provider is present
constructor()
private constructor for subclasses
auto input_request
the argument for the request/response API for the input provider
Definition Mapper.qm.dox.h:519
fieldLengthError(string k, string val, int ix, int sze, int maxlen, hash< auto > rc)
called when a field exceeds its maximum length when processing hashes of lists
*hash< string, AbstractDataField > input
an optional description of possible input hash keys
Definition Mapper.qm.dox.h:504
checkMapField(string k, reference< auto > fh)
perform per-field pre-processing on the passed map in the constructor
string getFieldName(string fname)
returns a descriptive name of the given field if possible, otherwise returns the field name itself
static *hash< auto > getMapperThreadContext()
Get mapper thread context.
checkTimezoneOption(string rn)
verifies a timezone constructor option
hash< auto > mapDataIntern(hash< auto > rec, *bool do_log_output)
processes the input record and returns a hash of the mapped values
*hash< string, AbstractDataField > getOutputRecord()
returns the value of the "output" option
bool structured_output
flag if the field descriptions were provided to the constructor
Definition Mapper.qm.dox.h:561
bool output_create_ignore_duplicates
flag indicating that duplicate records should be ignored when creating records with an output mapper
Definition Mapper.qm.dox.h:564
bool input_do_request
indicates that the request/response API should be used for mapper input
Definition Mapper.qm.dox.h:516
hash< string, hash< auto > > runtime_keys_with_handler
subset of runtime_keys with handlers
Definition Mapper.qm.dox.h:590
bool input_request_search
a boolean flag that indicates that an input provider that supports both the record API and the reques...
Definition Mapper.qm.dox.h:525
logOutput(hash< auto > h)
calls the output logging closure or call reference (if any) to log the output record
discardOutput()
Discards any buffered data in the output data provider in a bulk operation.
bool output_suppress_data_provider
ignore any output data provider; use for type info only
Definition Mapper.qm.dox.h:611
list< hash< auto > > mapAll(hash< auto > recs)
maps all input records and returns the mapped data as a list of output records
error(string fmt,...)
throws a MAP-ERROR exception; prepends the map name to the description if known
hash< auto > consth
map of constant fields
Definition Mapper.qm.dox.h:581
hash< auto > optionKeys()
returns a list of valid constructor options for this class (can be overridden in subclasses)
*AbstractDataField processStructuredOutputField(string k, reference< hash< auto > > fh)
Raises an error if invalid fields in structured output data are declared; sets "fh".
convertToHash(int t, string k, reference< auto > fh)
convert a field definition to a hash if possible
auto mapFieldType(string key, hash< auto > mapping, AbstractDataProviderType type, auto value, hash< auto > rec, auto v)
performs type handling
processStructuredInputField(string k, string name, reference< list< string > > struct)
raises an error if invalid fields in structured input data are declared; sets "struct"
checkInputProvider()
raises an error if no input provider is present
hash< auto > getOptionsFromTemplate(hash< auto > opts, hash< auto > input_rec, *hash< auto > output_rec)
Returns options from a template hash.
bool disable_bulk
disable bulk operations when there is a hash of lists as input when calling mapAuto
Definition Mapper.qm.dox.h:531
bool output_provider_upsert
if the upsert operations should be used on the output provider
Definition Mapper.qm.dox.h:546
rollback()
Rolls back data written to the output data provider.
*hash< auto > input_provider_search
search conditions for the input provider
Definition Mapper.qm.dox.h:510
*hash< string, AbstractDataField > output
an optional description of the output data structure
Definition Mapper.qm.dox.h:534
MapperOutputRecordIterator getOutputIterator()
returns an output record iterator that produces mapped data from the input data provider
bool supportsBulkApiImpl()
Returns True if the record processor supports bulk operation.
static list< string > splitDottedFields(string k)
Splits a dotted field and replaces escaped (.) dots with plain dots (.)
*AbstractDataProvider output_provider
the optional output data provider
Definition Mapper.qm.dox.h:537
checkInputField(string k, string name)
raises an error if an invalid input field name is declared; only call this if "input" is defined
flushOutput()
Flushes any remaining data to the output data provider in a bulk operation.
auto getRuntime(string key)
get current runtime option value for a key
runAutonomous()
Runs the input and output mappers with data providers on each end autonomously.
*AbstractDataProviderType getReturnTypeImpl()
Returns the type of data that will be returned, if available.
replaceRuntime(*hash< auto > runtime)
replaces runtime options
hash< auto > identh
map of fields to be mapped 1:1 input -> output
Definition Mapper.qm.dox.h:575
static *hash< auto > swapMapperThreadContext(*hash< auto > new_ctx)
Swap the mapper thread context.
*code output_log
an optional output data logging callback; must accept a hash giving the output data hash
Definition Mapper.qm.dox.h:473
*code submapper_get
an optional callback for retrieving a nested mapper; sig: (string name, *hash<auto> opts) {}
Definition Mapper.qm.dox.h:476
AbstractDataProviderRecordIterator getInputProviderRecordIterator()
returns a record iterator for an input provider
hash< auto > mapd
the hash with a subset of the mappings used dynamically
Definition Mapper.qm.dox.h:458
*code input_log
an optional input data logging callback; must accept a hash giving the input data hash
Definition Mapper.qm.dox.h:470
*softlist< hash< auto > > mapAutoInput()
Runs the input data provider through the mapper and returns the output.
*int getRecListSize(hash< auto > rec)
*AbstractDataProvider getOutputProvider()
returns the output provider
setRuntime(hash< auto > runtime)
adds runtime options to the current runtime option hash
static Type recordType("hash<string, AbstractDataField>")
the input and output record type
hash< auto > mapData(hash< auto > rec)
processes the input record and returns a hash of the mapped values where the keys in the hash returne...
int getCount()
returns the internal record count
hash< auto > mapo
the hash of output records for key order
Definition Mapper.qm.dox.h:461
*AbstractDataProviderBulkOperation output_provider_bulk_operation
bulk output object for an output data provider
Definition Mapper.qm.dox.h:540
bool output_provider_passive
if the output provide should only be used to set the output type
Definition Mapper.qm.dox.h:543
hash< string, hash< MapperRuntimeKeyInfo > > runtime_keys
map of field keys provided by the "runtime_keys" option
Definition Mapper.qm.dox.h:587
*hash< auto > input_search_options
search options for the input provider
Definition Mapper.qm.dox.h:513
nothing mapFieldIntern(reference< hash< auto > > h, string key, hash< auto > rec, bool do_list, int list_size)
maps a single field to the target
bool input_suppress_data_provider
ignore any input data provider; use for type info only
Definition Mapper.qm.dox.h:608
*hash< string, AbstractDataField > getInputRecord()
returns the value of the "input" option
*string name
the optional name for the object (for example a table name); will be prepended to field names in erro...
Definition Mapper.qm.dox.h:464
checkOutputProvider()
raises an error if no output provider is present
*hash< auto > mapper_thread_context
mapper static thread context hash
Definition Mapper.qm.dox.h:602
hash< string, hash< MapperOptionInfo > > getUserOptions()
returns mapper options useful for users
*hash< auto > output_request_options
options for the request when using the request/response API for the output provider
Definition Mapper.qm.dox.h:552
hash< string, hash< MapperRuntimeKeyInfo > > runtime_independent_keys
hash of runtime keys that provide independent mappings (where there is no "requires_role" = "value")
Definition Mapper.qm.dox.h:593
hash< string, bool > valid_keys
hash of valid keys
Definition Mapper.qm.dox.h:596
auto mapSubclass(hash< auto > m, auto v)
to be overridden as necessary in subclasses
*hash< auto > global_submappers
global submapper hash
Definition Mapper.qm.dox.h:605
string truncateField(string k, string val, int ix, int sze, int maxlen)
called to truncate fields when processing hashes of lists
*hash< auto > input_request_options
options for the request when using the request/response API for the input provider
Definition Mapper.qm.dox.h:522
*hash< auto > doCreateRecordIntern(hash< auto > rec)
Creates a record with the output data provider.
submitImpl(code enqueue, auto _data)
Submits the data for processing by the mapper.
hash< auto > rconsth
map of constant runtime fields
Definition Mapper.qm.dox.h:584
*code template_subst
an optional callback for substituting templated values
Definition Mapper.qm.dox.h:479
*AbstractDataProvider getInputProvider()
returns the input provider
auto mapAuto(auto recs)
maps all input record(s) automatically and returns the mapped data
setNullableOutput()
sets all fields in the output record as nullable
hash mapc
the hash providing output field names and mappings
Definition Mapper.qm.dox.h:455
*code info_log
an optional info logging callback; must accept a sprintf()-style format specifier and optional argume...
Definition Mapper.qm.dox.h:467
*AbstractDataProviderType getExpectedTypeImpl()
Returns the expected type of data to be submitted, if available.
list< hash< auto > > mapAll(list< auto > recs)
maps all input records and returns the mapped data as a list of output records
setup(hash< auto > mapv, *hash< auto > opts)
sets up the mapper object before checking the mapper hash
checkMap()
verifies the input map in the constructor
commit()
Commits data written to the output data provider if the output data provider supports transaction man...
*hash< auto > m_runtime
current runtime values
Definition Mapper.qm.dox.h:572
bool output_do_request
indicates that the request/response API should be used for mapper output
Definition Mapper.qm.dox.h:549
resetCount()
resets the internal record count
setRuntime(string key, auto value)
set the runtime option with "key" to value "value"
string getMappingDescription(string key, hash< auto > mapping)
returns a test description for the input mapping
hash< string, bool > validKeys()
returns a list of valid field keys for this class (can be overridden in subclasses)
error2(string ex, string fmt,...)
throws the given exception; prepends the map name to the description if known
constructor(hash< auto > mapv, *hash< auto > opts)
builds the object based on a hash providing field mappings, data constraints, and optionally custom m...
*AbstractDataProvider input_provider
the optional input data provider
Definition Mapper.qm.dox.h:507
list< hash< auto > > mapAll(AbstractIterator recs)
maps all input records and returns the mapped data as a list of output records
bool structured_input
flag if the field descriptions were provided to the constructor
Definition Mapper.qm.dox.h:558
bool ignore_missing_input
suppresses the output field if the input field is missing and the output is optional
Definition Mapper.qm.dox.h:528
*hash< auto > mapBulk(hash< auto > rec, *hash< auto > crec)
maps a set of records in hash of lists format; returns mapped data in a hash of lists format
*list< auto > identl
list of fields to be mapped 1:1 input -> output
Definition Mapper.qm.dox.h:578
provides a hash iterator based on a mapper object and an iterator input source
Definition Mapper.qm.dox.h:1327
constructor(Qore::AbstractIterator i, Mapper::Mapper mapv)
creates the iterator from the arguments passed
constructor(Qore::AbstractIterator i, hash< auto > mapv, *hash< auto > opts)
creates the iterator from the arguments passed
resetCount()
resets the internal record count
Mapper::Mapper mapc
data mapper
Definition Mapper.qm.dox.h:1333
int getCount()
returns the internal record count
hash< auto > getValue()
returns the current row transformed with the mapper
Output record iterator for Mapper objects with an input data provider.
Definition Mapper.qm.dox.h:1473
bool valid()
Returns True if the iterator is currently pointing at a valid element, False if not.
constructor(Mapper mapper, AbstractDataProvider input, *hash< auto > where_cond, *hash< auto > search_options)
Creates the object from the arguments.
AbstractDataProviderRecordIterator i
the input data provider
Definition Mapper.qm.dox.h:1481
Mapper mapper
the mapper
Definition Mapper.qm.dox.h:1478
bool next()
Moves the current position to the next element; returns False if there are no more elements.
hash< auto > getValue()
Returns the mapped value of the current input record.
describes a data type that accepts any value except NOTHING; stores "string.max_size_chars" as a type...
Definition Mapper.qm.dox.h:1438
auto acceptsValue(auto value)
returns the value if the value can be assigned to the type
*Type getValueType()
returns the base type for the type, if any
bool isAssignableFrom(Type t)
returns True if this type can be assigned from values of the argument type
bool isAssignableFrom(AbstractDataProviderType t)
returns True if this type can be assigned from values of the argument type
string getName()
returns the type name
constructor(*hash< auto > options)
creates the object
the Mapper namespace contains all the definitions in the Mapper module
describes type options
Definition Mapper.qm.dox.h:417
string type
the option value type
Definition Mapper.qm.dox.h:419
string desc
the description of the option
Definition Mapper.qm.dox.h:422