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VTL Engine and Editor

Home Page: https://vpinna80.github.io/VTL/

License: European Union Public License 1.2

Batchfile 0.12% Shell 0.07% R 3.05% HTML 0.33% Java 80.50% ANTLR 3.65% Roff 3.73% CSS 0.29% Velocity Template Language 7.45% TypeScript 0.81%
sdmx vtl-sdmx

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vtl's Issues

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Error with operator "replace"

Exception thrown when a numeric measure exists in the dataset.

ds_rep:= replace(ds1,"lorem","LOREM");

java.lang.ClassCastException: it.bancaditalia.oss.vtl.impl.types.data.DoubleValue cannot be cast to it.bancaditalia.oss.vtl.impl.types.data.StringValue

Bug in string concatenation

dsr_3:= ds1[ calc Text_3:= Text_1||Text_2]; /* Text_1 and Text_2 are string measures */

Error:

The two datasets must have the same measures.

Error with NA values in R Environment

NA Values in datasets coming from the R Environment should be mapped to VTL NULL values, but they are not managed correctly. This also prevents some operators to work correctly (e.g. comparisons and null specific functions like nvl and isnull)

Error in "Get Started" page

In page https://vpinna80.github.io/VTL/RVTL/documentation.html#get-started

the dependencies=TRUE parameter does not work.

The documentation should be changed asking to install all prereq packages by hand:

install.packages('rJava')
install.packages('RJSDMX')
install.packages('igraph')
install.packages('networkD3')
install.packages('shiny')
install.packages('shinyAce')
install.packages('jdx')
install.packages('xtable')
install.packages('dplyr')

TIME_PERIOD support in CSV Environment

Currently the CSV Environment only supports DATE types for the time family (e.g. MYDATE_ID$=date[YYYY-MM-DD]).

TIME_PERIOD type should be supported as well.

Incorrect handling of DATE type in CSV environment

If a date component is specified as [YYYY-MM] in the CSV file, the environment add days too. This is not correct and it has an impact on operators behaviour.

e.g.

csv

$Id_1=String,$Id_2=date[YYYY-MM],Me_1=String
A,2010-01,hello world

dataset
immagine

JDX package end of support

The R package jdx has been discontinued. The R VTL code has to be updated to remove any reference to the package.

Performance issue with Arithmentic operators

Using multiple arithmentic operatorsin the same calc, e.g.

ds[x:=calc round..., y:=calc round..., z:=calc round...]

results in a considerable decay in performance.
If the same operation is done in multiple calcs, e.g.

ds[x:=calc round...][y:=calc round...][z:=calc round...]

this does not happen.

Fail at building package

Describe the bug
It throws an error at building

[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary for VTL 1.0.4-SNAPSHOT:
[INFO] 
[INFO] VTL ................................................ SUCCESS [  1.322 s]
[INFO] vtl-api ............................................ SUCCESS [ 11.705 s]
[INFO] vtl-types .......................................... SUCCESS [  6.988 s]
[INFO] vtl-domains ........................................ SUCCESS [  3.779 s]
[INFO] vtl-parser ......................................... SUCCESS [ 14.746 s]
[INFO] vtl-transform ...................................... SUCCESS [  5.178 s]
[INFO] vtl-envs ........................................... FAILURE [  2.270 s]
[INFO] vtl-session ........................................ SKIPPED
[INFO] vtl-transform ...................................... SKIPPED
[INFO] vtl-launcher ....................................... SKIPPED
[INFO] vtl-editor ......................................... SKIPPED
[INFO] RVTL ............................................... SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  47.678 s
[INFO] Finished at: 2020-06-09T09:58:35-03:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project vtl-envs: Could not resolve dependencies for project it.bancaditalia.oss.vtl:vtl-envs:jar:1.0.4-SNAPSHOT: Could not find artifact it.bancaditalia.oss:sdmx:jar:1.0.3 in central (https://repo.maven.apache.org/maven2) -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <args> -rf :vtl-envs

To Reproduce

 mvn -P with-r -Dsdmx.version=1.0.3  clean package

Expected behavior
A package build

Java complete Stack Trace

Please complete the following information:

  • MacOS 10.15.5
  • java version "1.8.0_40"
    Java(TM) SE Runtime Environment (build 1.8.0_40-b27)
    Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)
  • R 4.0.0

Additional context

Error in CSVPathEnvironment

The search mechnism has a bug. If I use a dataset that either does not exist or is in the R environment, the search is not completed because an error is caught in the CSVPath Env:

java.lang.StringIndexOutOfBoundsException: String index out of range: -3
	at java.lang.String.substring(Unknown Source)
	at it.bancaditalia.oss.vtl.impl.environment.CSVPathEnvironment.mapper(CSVPathEnvironment.java:86)

UPDATE: it seems that this happens only if the searched dataset name is 3 chrs long or less.

a:=att

results in:

INFO 23/04/2021 09:59:23 [vtl.impl.session.VTLSessionImpl/main] - Resolving value of att java.lang.StringIndexOutOfBoundsException: String index out of range: -1 at java.lang.String.substring(Unknown Source) at it.bancaditalia.oss.vtl.impl.environment.CSVPathEnvironment.mapper(CSVPathEnvironment.java:86) at it.bancaditalia.oss.vtl.impl.environment.CSVPathEnvironment.getValueMetadata(CSVPathEnvironment.java:97) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.lambda$acquireValue$10(VTLSessionImpl.java:226) at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source) at java.util.ArrayList$ArrayListSpliterator.tryAdvance(Unknown Source) at java.util.stream.ReferencePipeline.forEachWithCancel(Unknown Source) at java.util.stream.AbstractPipeline.copyIntoWithCancel(Unknown Source) at java.util.stream.AbstractPipeline.copyInto(Unknown Source) at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) at java.util.stream.FindOps$FindOp.evaluateSequential(Unknown Source) at java.util.stream.AbstractPipeline.evaluate(Unknown Source) at java.util.stream.ReferencePipeline.findAny(Unknown Source) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.acquireValue(VTLSessionImpl.java:229) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.lambda$getMetadata$6(VTLSessionImpl.java:162) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.cacheHelper(VTLSessionImpl.java:203) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.getMetadata(VTLSessionImpl.java:162) at it.bancaditalia.oss.vtl.impl.transform.VarIDOperand.getMetadata(VarIDOperand.java:53) at it.bancaditalia.oss.vtl.impl.engine.statement.AssignStatement.getMetadata(AssignStatement.java:87) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.lambda$compile$12(VTLSessionImpl.java:268) at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source) at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(Unknown Source) at java.util.stream.AbstractPipeline.copyInto(Unknown Source) at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source) at java.util.stream.AbstractPipeline.evaluate(Unknown Source) at java.util.stream.ReferencePipeline.collect(Unknown Source) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.compile(VTLSessionImpl.java:269) at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at RJavaTools.invokeMethod(RJavaTools.java:386)

while

a:=atti

in

INFO 23/04/2021 10:00:50 [vtl.impl.session.VTLSessionImpl/main] - Resolving value of atti it.bancaditalia.oss.vtl.exceptions.VTLNestedException: Error evaluating statement 'b := atti'. Error: Alias 'atti' is not bound to this transformation scheme. at it.bancaditalia.oss.vtl.impl.engine.statement.AssignStatement.getMetadata(AssignStatement.java:91) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.lambda$compile$12(VTLSessionImpl.java:268) at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source) at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(Unknown Source) at java.util.stream.AbstractPipeline.copyInto(Unknown Source) at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source) at java.util.stream.AbstractPipeline.evaluate(Unknown Source) at java.util.stream.ReferencePipeline.collect(Unknown Source) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.compile(VTLSessionImpl.java:269) at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at RJavaTools.invokeMethod(RJavaTools.java:386) Caused by: it.bancaditalia.oss.vtl.exceptions.VTLUnboundNameException: Alias 'atti' is not bound to this transformation scheme. at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.lambda$null$5(VTLSessionImpl.java:163) at java.util.Optional.orElseThrow(Unknown Source) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.lambda$getMetadata$6(VTLSessionImpl.java:163) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.cacheHelper(VTLSessionImpl.java:203) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.getMetadata(VTLSessionImpl.java:162) at it.bancaditalia.oss.vtl.impl.transform.VarIDOperand.getMetadata(VarIDOperand.java:53) at it.bancaditalia.oss.vtl.impl.engine.statement.AssignStatement.getMetadata(AssignStatement.java:87) ... 13 more INFO 23/04/2021 10:00:50 [vtl.impl.engine.mapping.OpsFactory/main] - Using VTL configuration file: jar:file:/D:/Dati/Profili/e922480/Documents/R/R-4.0.2/library/RVTL/java/vtl-transform-1.0.8-SNAPSHOT.jar!/it/bancaditalia/oss/vtl/impl/engine/mapping/OpsFactory.xml DEBUG 23/04/2021 10:00:50 [vtl.impl.engine.mapping.OpsFactory/168/main] - Loading mappings DEBUG 23/04/2021 10:00:50 [vtl.impl.engine.mapping.OpsFactory/177/main] - Loading tokensets DEBUG 23/04/2021 10:00:50 [vtl.impl.engine.mapping.OpsFactory/184/main] - Loading recursive context DEBUG 23/04/2021 10:00:50 [vtl.impl.engine.mapping.OpsFactory/192/main] - Parsing new context VarIdExprContext containing 'atti'. INFO 23/04/2021 10:00:50 [vtl.impl.session.VTLSessionImpl/main] - Resolving value of atti it.bancaditalia.oss.vtl.exceptions.VTLNestedException: Error evaluating statement 'b := atti'. Error: Alias 'atti' is not bound to this transformation scheme. at it.bancaditalia.oss.vtl.impl.engine.statement.AssignStatement.getMetadata(AssignStatement.java:91) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.lambda$compile$12(VTLSessionImpl.java:268) at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source) at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(Unknown Source) at java.util.stream.AbstractPipeline.copyInto(Unknown Source) at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source) at java.util.stream.AbstractPipeline.evaluate(Unknown Source) at java.util.stream.ReferencePipeline.collect(Unknown Source) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.compile(VTLSessionImpl.java:269) at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at RJavaTools.invokeMethod(RJavaTools.java:386) Caused by: it.bancaditalia.oss.vtl.exceptions.VTLUnboundNameException: Alias 'atti' is not bound to this transformation scheme. at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.lambda$null$5(VTLSessionImpl.java:163) at java.util.Optional.orElseThrow(Unknown Source) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.lambda$getMetadata$6(VTLSessionImpl.java:163) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.cacheHelper(VTLSessionImpl.java:203) at it.bancaditalia.oss.vtl.impl.session.VTLSessionImpl.getMetadata(VTLSessionImpl.java:162) at it.bancaditalia.oss.vtl.impl.transform.VarIDOperand.getMetadata(VarIDOperand.java:53) at it.bancaditalia.oss.vtl.impl.engine.statement.AssignStatement.getMetadata(AssignStatement.java:87) ... 13 more

Documentation update

Missing VTL Engine documentation

Expected documentation missing at VTL Engine documentation

Seems to me like the documentation was pointing to local files, rather than files in the repo. I would also then expect the relevant files to be at "vtl/vtl-bundles/vtl-rest/target/generated-snippets/compile/request-parameters.adoc", although these file does not exist in the repo.

CSVDirectoryEnvironment

A new environment should be developed, pointing to a local directory containing csv files having the same format specifed for the CSV Environment.

The Engine will use the file name to match datasets (without .csv extension), so there will not be any need of quotes and tags in the VTL code

This environment will be particularly useful for testing purposes

Error with numeric operations between dataset and scalar, only if scalar is calculated

Test case: https://github.com/vpinna80/VTL/tree/master/vtl-bundles/vtl-r/RVTL/src/main/resources/R/user_tests/vtl_scripts/numeric/op_with_calculated_scalar.vtl

Error:

ERROR 28/04/2021 10:56:22 [vtl.util.Paginator/Thread-128] - Component m1 not found in [$id1[string], number_var[number]] it.bancaditalia.oss.vtl.exceptions.VTLMissingComponentsException: Component m1 not found in [$id1[string], number_var[number]] at it.bancaditalia.oss.vtl.impl.transform.number.ArithmeticTransformation.lambda$null$7(ArithmeticTransformation.java:125) ~[vtl-transform-1.0.8-SNAPSHOT.jar:?] at java.util.Optional.orElseThrow(Unknown Source) ~[?:1.8.0_192] at it.bancaditalia.oss.vtl.impl.transform.number.ArithmeticTransformation.lambda$null$8(ArithmeticTransformation.java:125) ~[vtl-transform-1.0.8-SNAPSHOT.jar:?] at java.util.stream.Collectors.lambda$toConcurrentMap$59(Unknown Source) ~[?:1.8.0_192] at java.util.stream.ReferencePipeline.lambda$collect$1(Unknown Source) ~[?:1.8.0_192] at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(Unknown Source) ~[?:1.8.0_192] at java.util.HashMap$KeySpliterator.forEachRemaining(Unknown Source) ~[?:1.8.0_192] at java.util.stream.AbstractPipeline.copyInto(Unknown Source) ~[?:1.8.0_192] at java.util.stream.ForEachOps$ForEachTask.compute(Unknown Source) ~[?:1.8.0_192] at java.util.concurrent.CountedCompleter.exec(Unknown Source) ~[?:1.8.0_192] at java.util.concurrent.ForkJoinTask.doExec(Unknown Source) ~[?:1.8.0_192] at java.util.concurrent.ForkJoinTask.doInvoke(Unknown Source) ~[?:1.8.0_192] at java.util.concurrent.ForkJoinTask.invoke(Unknown Source) ~[?:1.8.0_192] at java.util.stream.ForEachOps$ForEachOp.evaluateParallel(Unknown Source) ~[?:1.8.0_192] at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateParallel(Unknown Source) ~[?:1.8.0_192] at java.util.stream.AbstractPipeline.evaluate(Unknown Source) ~[?:1.8.0_192] at java.util.stream.ReferencePipeline.forEach(Unknown Source) ~[?:1.8.0_192] at java.util.stream.ReferencePipeline$Head.forEach(Unknown Source) ~[?:1.8.0_192] at java.util.stream.ReferencePipeline.collect(Unknown Source) ~[?:1.8.0_192] at it.bancaditalia.oss.vtl.impl.transform.number.ArithmeticTransformation.lambda$evalDatasetWithScalar$10(ArithmeticTransformation.java:123) ~[vtl-transform-1.0.8-SNAPSHOT.jar:?] at it.bancaditalia.oss.vtl.impl.types.dataset.AbstractDataSet.lambda$mapKeepingKeys$8(AbstractDataSet.java:162) ~[vtl-types-1.0.8-SNAPSHOT.jar:?] at java.util.stream.ReferencePipeline$3$1.accept(Unknown Source) ~[?:1.8.0_192] at java.util.concurrent.ConcurrentHashMap$KeySpliterator.forEachRemaining(Unknown Source) ~[?:1.8.0_192] at java.util.stream.AbstractPipeline.copyInto(Unknown Source) ~[?:1.8.0_192] at java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source) ~[?:1.8.0_192] at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(Unknown Source) ~[?:1.8.0_192] at java.util.stream.AbstractPipeline.evaluate(Unknown Source) ~[?:1.8.0_192] at java.util.stream.ReferencePipeline.reduce(Unknown Source) ~[?:1.8.0_192] at it.bancaditalia.oss.vtl.impl.types.dataset.AbstractDataSet.lambda$filteredMappedJoinWithIndex$7(AbstractDataSet.java:145) ~[vtl-types-1.0.8-SNAPSHOT.jar:?] at it.bancaditalia.oss.vtl.impl.types.dataset.LightFDataSet.streamDataPoints(LightFDataSet.java:44) ~[vtl-types-1.0.8-SNAPSHOT.jar:?] at it.bancaditalia.oss.vtl.impl.types.dataset.AbstractDataSet.stream(AbstractDataSet.java:240) ~[vtl-types-1.0.8-SNAPSHOT.jar:?] at it.bancaditalia.oss.vtl.impl.session.CachedDataSet.createUnindexedCache(CachedDataSet.java:281) ~[vtl-session-1.0.8-SNAPSHOT.jar:?] at it.bancaditalia.oss.vtl.impl.session.CachedDataSet.streamDataPoints(CachedDataSet.java:234) ~[vtl-session-1.0.8-SNAPSHOT.jar:?] at it.bancaditalia.oss.vtl.impl.types.dataset.AbstractDataSet.stream(AbstractDataSet.java:240) ~[vtl-types-1.0.8-SNAPSHOT.jar:?] at it.bancaditalia.oss.vtl.util.Paginator.lambda$new$1(Paginator.java:60) ~[vtl-java2r-1.0.8-SNAPSHOT.jar:?] at java.lang.Thread.run(Unknown Source) [?:1.8.0_192]

Error in compilation, missing check

This code:

b:= ", world!";
ds_r2:= ds1[ calc Text_3:= Text_1||b];

should not pass compilation, but it does and then it fails at runtime. This is a bug.

Error in fill_time_series function

With daily data the fill_time_series shows some incorrect behaviours:

  1. start dates are skipped in the result dataset
  2. Some years are missing

this applies to both single and all options

Error in boolean NULL values when they are transferred from VTL to R

Null values in VTL boolean components are set as false in R. This is due to the jdx package:

Logical NA cannot be represented in primitive Java boolean types. Logical NA
will be coerced to FALSE to align with rJava. When logical NAs are coerced, a
warning is thrown. Java null values in java.lang.Boolean boxed types are also
coerced with a warning.
NA_ASSUMPTION_LOGICAL <- FALSE

https://github.com/floidgilbert/jdx/blob/master/R/jdx/R/Private.R

To be investigated:

  • option 1: improve jdx
  • option 2: cast to int

Add java API and shiny control to let user load a dataset as csv file

Users cannot load datasets outside of VTL code today. This creates some limitations with the VTL Studio in shinyapps because neither local csv files nor the R environment can be used in that situation (so, only SDMX datasets can be used).

To overcome this limitation, an explicit shiny control could be added to vtl studio, that allows users to upload a dataset in the csv environment. This could be a fileInput button that selects the file, and calls a java API that streams the files and puts it in the csv environment, ready to be used in vtl scripts.

Handle dates in R environment

Currently date and time_period objects are not managed by the R environment. We should consider adding support for dates at least for dates:

  • from R to VTL: date classes in datatset components shoud be marshalled into VTL dates (YYYY-MM-DD) (this could be a bit tricky as JRI seems not to support dates natively, but it should be feasible anyway). Only date classes will be supported, so it will be up to the user to perform conversins before entering VTL.

  • from VTL to R: currently dates and time_period is cast to string because even jdx does not support dates. It should be possible to format everything to a standard R date format (YYYY-MM-DD) and set a flag somewhere that implies recasting once in R (as.Date should be sufficient). An example of flag could be an attribute (e.g. date_columns) that lists all the date components

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