rudof

This repo contains an RDF data shapes library implemented in Rust. The implementation supports ShEx, SHACL, DCTap and conversions between different RDF data modeling formalisms.

The code can be used as a Rust library but it also contains a binary called rudof which can be used as an RDF playground.

We provide binaries for Linux, Windows, Mac and Docker (see releases), as well as Python bindings.

• Documentation
• Using rudof as Jupyter notebooks
• Installation
• List of issues
• Discussion
• FAQ
• How to guides
• Roadmap

Features

rudof currently supports the following:

• RDF and RDF 1.2 parsing, conversion and visualization.
• SPARQL querying to RDF data and endpoints
• Parsing SPARQL service description
• ShEx
• SHACL
• DCTAP

Future features we are planning to add:

• rdf-config
• LinkML

Installation

Official releases

You can download a binary from the latest release page. There you will also find the compiled packages for the installation on your system using a package manager.

Ubuntu

Download the binary from https://github.com/rudof-project/rudof/releases and install the .deb package running the following commands after replacing X.X.X by the latest version:

wget https://github.com/rudof-project/rudof/releases/download/vX.X.X/rudof_vX.X.X_amd64.deb
sudo dpkg -i rudof_vX.X.X_amd64.deb

Windows

The binary can be downloaded from https://github.com/rudof-project/rudof/releases.

Mac

The binary is available at: https://github.com/rudof-project/rudof/releases so you can download the corresponding binary to your machine.

The usual way to run/install a binary in Mac is to download it in a folder, add that folder to your PATH and activating the binary using:

chmod +x <binary_file>

After that, the processor may complain the first time about security and you have to agree to use it. Once you agree, it should work.

Compiling from source

Compiling from source

rudof has been implemented in Rust and is compiled using cargo. The command cargo run can be used to compile and run locally the code.

For example:

cargo run -- validate examples/user.ttl --schema examples/user.shex --shapemap examples/user.sm

Troubleshooting

If the example doesn’t work as expected, here are a few things you can try:

• Use the --release flag to compile in release mode, which can resolve some build issues and improve performance:

cargo run --release -- validate examples/user.ttl --schema examples/user.shex --shapemap examples/user.sm

• Run the command inside WSL (Windows Subsystem for Linux). If you're using Windows, compiling the project in WSL can help resolve environment-related issues, as Rust tends to compile more reliably and efficiently in Linux-based systems.

Compiling from source and installing the binary (Debian)

Install cargo deb (only the first time)

cargo install cargo-deb

Create the .deb package by:

cargo deb

And run:

sudo dpkg -i target/debian/rudof_0.0.11-1_amd64.deb

Alternative for Linux

To create a binary for Linux with debug information:

cargo build --target x86_64-unknown-linux-gnu

The binary will be created in: target/x86_64-unknown-linux-gnu/debug/rudof

If you want a release binary which is more optimized, you can run:

cargo build --target x86_64-unknown-linux-gnu

In this case, the binary will be target/x86_64-unknown-linux-gnu/release/rudof

Docker

The library is also published as a Docker image (angelip2303/rudof:latest).

Usage

Some examples

The folder examples contains several example files with ShEx schemas and RDF data.

Validate a simple RDF file with a ShEx schema using a ShapeMap

rudof validate examples/user.ttl --schema examples/user.shex --shapemap examples/user.sm

We maintain a Wiki page with some common Usage scenarios and How-to guides.

Debugging information

It is possible to change the debug level information with:

export RUST_LOG=value

where value can be debug to show more verbose information or info to show basic information.

Command line usage

A tool to process and validate RDF data using shapes, and convert between different RDF data models

Usage: rudof [OPTIONS] [COMMAND]

Commands:
  shapemap        Show information about ShEx ShapeMaps
  shex            Show information about ShEx schemas
  validate        Validate RDF data using ShEx or SHACL
  shex-validate   Validate RDF using ShEx schemas
  shacl-validate  Validate RDF data using SHACL shapes
  data            Show information about RDF data
  node            Show information about a node in an RDF Graph
  shacl           Show information about SHACL shapes
  dctap           Show information and process DCTAP files
  convert         Convert between different Data modeling technologies
  service         Show information about SPARQL service
  query           Run SPARQL queries
  help            Print this message or the help of the given subcommand(s)

Options:
  -d, --debug...


  -h, --help
          Print help (see a summary with '-h')

  -V, --version
          Print version

Obtaining information about a ShEx schema

$ rudof shex --help
Show information about ShEx schemas

Usage: rudof shex [OPTIONS] --schema <Schema file name>

Options:
  -s, --schema <Schema file name>

  -f, --format <Schema format>
          [default: shexc] [possible values: internal, simple, shexc, shexj, turtle, ntriples, rdfxml, trig, n3, nquads]
  -r, --result-format <Result schema format>
          [default: shexj] [possible values: internal, simple, shexc, shexj, turtle, ntriples, rdfxml, trig, n3, nquads]
  -t, --show elapsed time <SHOW_TIME>
          [possible values: true, false]
      --statistics <SHOW_STATISTICS>
          [possible values: true, false]
  -o, --output-file <Output file name, default = terminal>

      --reader-mode <RDF Reader mode>
          [default: strict] [possible values: lax, strict]
      --force-overwrite

  -c, --config-file <Config file name>
          Config file path, if unset it assumes default config
  -h, --help
          Print help

Obtaining information about RDF data

$ rudof data --help
Show information about RDF data

Usage: rudof data [OPTIONS] [DATA]...

Arguments:
  [DATA]...

Options:
  -t, --data-format <RDF Data format>
          [default: turtle] [possible values: turtle, ntriples, rdfxml, trig, n3, nquads]
      --reader-mode <RDF Reader mode>
          RDF Reader mode [default: strict] [possible values: lax, strict]
  -o, --output-file <Output file name, default = terminal>

  -r, --result-format <Ouput result format>
          [default: turtle] [possible values: turtle, ntriples, rdfxml, trig, n3, nquads]
  -c, --config-file <Config file name>
          Config file path, if unset it assumes default config
      --force-overwrite

  -h, --help
          Print help

Obtaining information about a node in RDF data

This command can be useful to obtain the neighbourhood of a node.

$ rudof node --help
Show information about a node in an RDF Graph

Usage: rudof node [OPTIONS] --node <NODE> [DATA]...

Arguments:
  [DATA]...

Options:
  -n, --node <NODE>

  -t, --data-format <RDF Data format>
          [default: turtle] [possible values: turtle, ntriples, rdfxml, trig, n3, nquads]
  -e, --endpoint <Endpoint with RDF data>

      --reader-mode <RDF Reader mode>
          RDF Reader mode [default: strict] [possible values: lax, strict]
  -m, --show-node-mode <Show Node Mode>
          [default: outgoing] [possible values: outgoing, incoming, both]
      --show hyperlinks

  -p, --predicates <PREDICATES>

  -o, --output-file <Output file name, default = terminal>

  -c, --config <Path to config file>

      --force-overwrite

  -h, --help
          Print help

For example, the following command shows the neighbourhood of node wd:Q80 in the Wikidata endpoint.

rudof node -e wikidata -n wd:Q80

Validating an RDF node against some data

$ rudof validate --help
Validate RDF data using ShEx or SHACL

Usage: rudof validate [OPTIONS] [DATA]...

Arguments:
  [DATA]...


Options:
  -M, --mode <Validation mode>
          [default: shex]
          [possible values: shex, shacl]

  -s, --schema <Schema file name>


  -f, --schema-format <Schema format>
          [possible values: internal, simple, shexc, shexj, turtle, ntriples, rdfxml, trig, n3, nquads]

  -m, --shapemap <ShapeMap>


      --shapemap-format <ShapeMap format>
          [default: compact]
          [possible values: compact, internal]

  -n, --node <NODE>


  -l, --shape-label <shape label (default = START)>


  -t, --data-format <RDF Data format>
          [default: turtle]
          [possible values: turtle, ntriples, rdfxml, trig, n3, nquads]

  -e, --endpoint <Endpoint with RDF data>


      --max-steps <max steps to run>
          [default: 100]

  -S, --shacl-mode <SHACL validation mode>
          Execution mode

          [default: native]

          Possible values:
          - native: We use a Rust native engine in an imperative manner (performance)
          - sparql: We use a  SPARQL-based engine, which is declarative

      --reader-mode <RDF Reader mode>
          RDF Reader mode

          [default: strict]
          [possible values: lax, strict]

  -o, --output-file <Output file name, default = terminal>


      --force-overwrite


  -c, --config-file <Config file name>
          Config file path, if unset it assumes default config

  -h, --help
          Print help (see a summary with '-h')

Example: Assuming there a ShEx file in examples/user.shex and an RDF turtle file in examples/user.ttl we can ask to validate node :a with shape label :User using:

rudof validate -s examples/user.shex -d examples/user.ttl -n :a -l :User

If there is a shapemap in examples/user.sm, we can validate using:

rudof validate -s examples/user.shex -d examples/user.ttl -m examples/user.sm

Validating an RDF node against some SHACL Shape

rudof shacl-validate --shapes examples/simple_shacl.ttl examples/simple.ttl

Conversion between shapes formalisms

$ rudof convert --help
Convert between different Data modeling technologies

Usage: rudof convert [OPTIONS] --input-mode <Input mode> --source-file <Source file name> --export-mode <Result mode>

Options:
  -c, --config <Path to config file>

  -m, --input-mode <Input mode>
          [possible values: shacl, shex, dctap]
      --force-overwrite

  -s, --source-file <Source file name>

  -f, --format <Input file format>
          [default: shexc] [possible values: csv, shexc, shexj, turtle, xlsx]
  -r, --result-format <Result format>
          [default: default] [possible values: default, internal, json, shexc, shexj, turtle, plantuml, html, svg, png]
  -o, --output-file <Output file name, default = terminal>

  -t, --target-folder <Target folder>

  -l, --shape-label <shape label (default = START)>

      --reader-mode <RDF Reader mode>
          RDF Reader mode [default: strict] [possible values: lax, strict]
  -x, --export-mode <Result mode>
          [possible valueS: QueryRDF, shex, uml, html]
  -h, --help
          Print help

Main modules

The repo is divided in the following modules:

• iri_s defines simple IRIs.
• srdf simple RDF model which will be used for validation.
• prefixmap Prefix maps implementation.
• shapemap ShapeMap implementation.
• shex_ast defines the ShEx Abstract syntax
• shex_compact contains the code required to handle ShEx compact syntax.
• shex_validation contains the code required to validate RDF using ShEx.
• shex_testsuite contains the code required to run the ShEx testsuite.
• shacl_ast defines the SHACL core Abstract syntax.
• shacl_validation contains the code required to validate RDF using SHACL.
• dctap contains the code required to do handle DCTAP files.
• shapes_converter contains the code required to do conversion between different shapes formalisms.

Publishing the crates

cargo workspaces publish

Worskpaces

The project is using cargo workspaces wihch can be installed with:

cargo install cargo-workspaces

Unit-testing

In order to test all the sub-projects

cargo test --all

Testing one specific subproject:

cargo test -p shex_validation

Using the ShEx test-suite

The ShEx testsuite is included in a git submodule. In order to obtain it, it is necessary to do:

git submodule update --init --recursive
cargo run -p shex_testsuite

Usage: shex_testsuite [OPTIONS]

Options:
  -m, --manifest <Manifest FILE (.jsonld)>
          Name of Manifest file [default: shex_testsuite/shexTest/validation/manifest.jsonld]
  -c, --config <Config file>
          [default: shex_testsuite/config.toml]
  -x, --run_mode <MANIFEST_RUN_MODE>
          [default: collect-errors] [possible values: collect-errors, fail-first-error]
  -f, --manifest_mode <MANIFEST_MODE>
          [possible values: schemas, validation, negative-syntax, negative-structure]
  -p, --print_result_mode <PRINT_RESULT_MODE>
          [default: basic] [possible values: basic, failed, passed, not-implemented, all]
  -e, --entry <Entry names>

  -t, --trait <Trait names>

  -h, --help
          Print help
  -V, --version
          Print version

Validation conformance tests for ShEx

cargo run -p shex_testsuite -- -m shex_testsuite/shexTest/validation/manifest.jsonld validation

Schemas tests

cargo run -p shex_testsuite -- -m shex_testsuite/shexTest/schemas/manifest.jsonld -f schemas -p failed

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contributors

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.