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Architecture diagram

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  1. 23
      README.md
  2. 120
      docs/arch-diagram.svg
  3. 35
      docs/arch-diagram.txt

23
README.md
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@ -19,6 +19,12 @@ Oxigraph is in heavy development and SPARQL query evaluation has not been optimi
The development roadmap is using [GitHub milestones](https://github.com/oxigraph/oxigraph/milestones?direction=desc&sort=completeness&state=open).
Oxigraph internal design [is described on the wiki](https://github.com/oxigraph/oxigraph/wiki/Architecture).
Oxigraph implements the following specifications:
- [SPARQL 1.1 Query](https://www.w3.org/TR/sparql11-query/), [SPARQL 1.1 Update](https://www.w3.org/TR/sparql11-update/), and [SPARQL 1.1 Federated Query](https://www.w3.org/TR/sparql11-federated-query/).
- [Turtle](https://www.w3.org/TR/turtle/), [TriG](https://www.w3.org/TR/trig/), [N-Triples](https://www.w3.org/TR/n-triples/), [N-Quads](https://www.w3.org/TR/n-quads/), and [RDF XML](https://www.w3.org/TR/rdf-syntax-grammar/) RDF serialization formats for both data ingestion and retrieval using the [Rio library](https://github.com/oxigraph/rio).
- [SPARQL Query Results XML Format](https://www.w3.org/TR/rdf-sparql-XMLres/), [SPARQL 1.1 Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/) and [SPARQL 1.1 Query Results CSV and TSV Formats](https://www.w3.org/TR/sparql11-results-csv-tsv/).
It is split into multiple parts:
- [The database written as a Rust library](https://crates.io/crates/oxigraph). Its source code is in the `lib` directory.
@ -31,11 +37,18 @@ It is split into multiple parts:
Note that it was previously named [Oxigraph server](https://crates.io/crates/oxigraph-server).
[![Latest Version](https://img.shields.io/crates/v/oxigraph-cli.svg)](https://crates.io/crates/oxigraph-cli)
Oxigraph implements the following specifications:
- [SPARQL 1.1 Query](https://www.w3.org/TR/sparql11-query/), [SPARQL 1.1 Update](https://www.w3.org/TR/sparql11-update/), and [SPARQL 1.1 Federated Query](https://www.w3.org/TR/sparql11-federated-query/).
- [Turtle](https://www.w3.org/TR/turtle/), [TriG](https://www.w3.org/TR/trig/), [N-Triples](https://www.w3.org/TR/n-triples/), [N-Quads](https://www.w3.org/TR/n-quads/), and [RDF XML](https://www.w3.org/TR/rdf-syntax-grammar/) RDF serialization formats for both data ingestion and retrieval using the [Rio library](https://github.com/oxigraph/rio).
- [SPARQL Query Results XML Format](https://www.w3.org/TR/rdf-sparql-XMLres/), [SPARQL 1.1 Query Results JSON Format](https://www.w3.org/TR/sparql11-results-json/) and [SPARQL 1.1 Query Results CSV and TSV Formats](https://www.w3.org/TR/sparql11-results-csv-tsv/).
Also, some parts of Oxigraph are available as standalone Rust crates:
* [`oxrdf`](https://crates.io/crates/oxrdf), datastructures encoding RDF basic concepts (the [`oxigraph::model`](crate::model) module).
* [`oxrdfio`](https://crates.io/crates/oxrdfio), a unified parser and serializer API for RDF formats (the [`oxigraph::io`](crate::io) module). It itself relies on:
* [`oxttl`](https://crates.io/crates/oxttl), N-Triple, N-Quad, Turtle, TriG and N3 parsing and serialization.
* [`oxrdfxml`](https://crates.io/crates/oxrdfxml), RDF/XML parsing and serialization.
* [`spargebra`](https://crates.io/crates/spargebra), a SPARQL parser.
* [`sparesults`](https://crates.io/crates/sparesults), parsers and serializers for SPARQL result formats.
* [`sparopt`](https://crates.io/crates/sparesults), a SPARQL optimizer.
* [`oxsdatatypes`](https://crates.io/crates/oxsdatatypes), an implementation of some XML Schema datatypes.
The library layers in Oxigraph. The elements above depend on the elements below:
![Oxigraph libraries architecture diagram](./docs/arch-diagram.svg)
A preliminary benchmark [is provided](bench/README.md). There is also [a document describing Oxigraph technical architecture](https://github.com/oxigraph/oxigraph/wiki/Architecture).

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35
docs/arch-diagram.txt
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+------------------+ +----------------+ +-----------------+
+ oxigraph CLI {r} + + pyoxigraph {p} + + oxigraph JS {j} +
+------------------+ +----------------+ +-----------------+
+---------------------------------------------------------------------------+
+ oxigraph (Rust) {r} +
+---------------------------------------------------------------------------+
+----------------------------+ +-------------+
+ oxrdfio {r} + + sparopt {r} +
+----------------------------+ +-------------+
+-----------+ +--------------+ +-----------------+ +----------------+
+ oxttl {r} + + oxrdfxml {r} + + spargebra {r} + + sparesults {r} +
+-----------+ +--------------+ +-----------------+ +----------------+
+-----------------------------------------------------------------------+
+ oxrdf {r} +
+-----------------------------------------------------------------------+
+------------------+
+ oxsdatatypes {r} +
+------------------+
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