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# Baserock Definitions schema, version -1
# This ontology teases out a simple formal model of the data represention
# aspect of the Baserock definitions format (v5).
#
# It's not a great example of an ontology, because it models a generic problem
# using terms and a data model tied closely to how a couple of specific tools
# work. In future we need to produce a more general-purpose model. I hope
# this schema is a useful step towards doing that.
# NOTE: I absolutely HATE CamelCase but it seems to be the convention for RDF
# property names. I'm undecided on whether it's worse to condemning everyone
# to using stupidCamelCaseNames for things, or worse to make a schema that is
# inconsistent with the rest of the Linked Data world.
# Things you can do with this:
# Check it is valid:
# rapper -i turtle baserock-owl-schema.turtle
#
# Visualise it in a rubbish way:
# rapper -i turtle -o dot baserock-owl-schema.turtle | dot -Tpng > schema.png
#
# Edit with Protégé:
# just open it in protege, it can save to Turtle format as well but will lose
# comments and formatting.
# Metadata
@prefix : <http://baserock.org/definitions/example-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix dc: <http://purl.org/dc/terms/> .
: a owl:Ontology ;
rdfs:comment "Example schema for Baserock Definitions format version 5." .
## Entities
# Source definitions
:Morphology a owl:Class ;
rdfs:comment "A definition file." .
:Cluster a owl:Class ;
rdfs:subClassOf :Morphology ;
rdfs:comment "Instructions for deploying one or systems." .
:System a owl:Class ;
rdfs:subClassOf :Morphology ;
rdfs:comment "A collection of strata in a form that can be executed." .
:Stratum a owl:Class ;
rdfs:subClassOf :Morphology ;
rdfs:comment "A set of related chunks." .
:Chunk a owl:Class ;
rdfs:subClassOf :Morphology ;
rdfs:comment "An individual component, that can be built from a Git repository." .
# Container contents
:SystemDeployment a owl:Class ;
rdfs:comment "Information for deploying one system of a cluster." .
:ChunkReference a owl:Class ;
rdfs:comment "An instance of a chunk within a stratum." .
# Products (for artifact split rules).
:Artifact a owl:Class ;
rdfs:comment "One part of the result of building a morphology. The output of a build is split according to patterns, so there are multiple artifacts produced for a given source." .
:StratumArtifact a owl:Class ;
rdfs:subClassOf :Artifact ;
rdfs:comment "Part of the result of building a stratum." .
:ChunkArtifact a owl:Class ;
rdfs:subClassOf :Artifact ;
rdfs:comment "Part of the result of building a chunk." .
## Shared properties
# 'name' is converted to a URL at load time.
# use dc:description for 'description', see:
# http://dublincore.org/documents/2012/06/14/dcmi-terms/?v=terms#terms-description
## Cluster-specific properties
:containsSystemDeployment a owl:ObjectProperty ;
rdfs:domain :Cluster ;
rdfs:range :SystemDeployment ;
owl:minCardinality 1 .
## SystemDeployment-specific properties
:deploysSystem a owl:ObjectProperty , owl:FunctionalProperty ;
rdfs:domain :SystemDeployment ;
rdfs:range :System .
:hasLabel a owl:DatatypeProperty , owl:FunctionalProperty ;
rdfs:domain :SystemDeployment ;
rdfs:range xsd:string .
:hasType a owl:DatatypeProperty , owl:FunctionalProperty ;
rdfs:domain :SystemDeployment ;
rdfs:range xsd:string ;
rdfs:comment "The .write extension used to perform the deployment." .
:hasLocation a owl:DatatypeProperty , owl:FunctionalProperty ;
rdfs:domain :SystemDeployment ;
rdfs:range xsd:string ;
rdfs:comment "Deployment location. This is passed to the selected .write extension" .
# FIXME: this is actually a key-value mapping, how do you do that in RDF properly?
:hasConfigurationSetting a owl:DatatypeProperty ;
rdfs:domain :SystemDeployment ;
rdfs:range xsd:string ;
rdfs:comment "Arbitrary key=value pair that is set in the environment of the .configure and .write extensions during deployment." .
## System-specific properties
:containsStratumArtifact a owl:ObjectProperty ;
rdfs:domain :System ;
rdfs:range :StratumArtifact ;
owl:minCardinality 1 .
# A build tool will only understand a certain set of architectures, but I think
# that should not be part of the data model.
:hasArchitecture a owl:DatatypeProperty, owl:FunctionalProperty ;
rdfs:domain :System ;
rdfs:range xsd:string .
:hasConfigurationExtension a owl:DatatypeProperty ;
rdfs:domain :System ;
rdfs:range xsd:string ;
rdfs:comment "A .configure extension to be run when with system is deployed." .
## Stratum-specific properties
:produces a owl:ObjectProperty , rdf:Seq ;
rdfs:domain :Stratum ;
rdfs:range :StratumArtifact ;
rdfs:comment "Describes how this artifact is split once all chunks are built." .
:hasStratumBuildDependency a owl:ObjectProperty ;
rdfs:domain :Stratum ;
rdfs:range :Stratum .
:containsChunkReference a owl:ObjectProperty ;
rdfs:domain :Stratum ;
rdfs:range :Chunk ;
owl:minCardinality 1 .
## ChunkReference-specific properties
:refersToChunk a owl:ObjectProperty , owl:FunctionalProperty ;
rdfs:domain :ChunkReference ;
rdfs:range :Chunk .
:repo a owl:DatatypeProperty , owl:FunctionalProperty ;
rdfs:domain :ChunkReference ;
rdfs:range xsd:string ;
rdfs:comment "Git repo that this chunk's build instructions should be run in. Can be a keyed URL according to the repo-alias mapping, which isn't currently defined in this data model." .
:ref a owl:DatatypeProperty , owl:FunctionalProperty ;
rdfs:domain :ChunkReference ;
rdfs:range xsd:string ;
rdfs:comment "Ref of the Git repo that should be checked out before building. Usually a SHA1." .
:unpetrifyRef a owl:DatatypeProperty , owl:FunctionalProperty ;
rdfs:domain :ChunkReference ;
rdfs:range xsd:string ;
rdfs:comment "Name of the ref that should be checked out (useful when 'ref' is a SHA1 to keep track of the actual branch/tag name)." .
:hasChunkBuildDependency a owl:ObjectProperty ;
rdfs:domain :ChunkReference ;
rdfs:range :Chunk .
:prefix a owl:DatatypeProperty , owl:FunctionalProperty ;
rdfs:domain :ChunkReference ;
rdfs:range xsd:string ;
rdfs:comment "Value of the PREFIX environment variable in the build environment (defaults to /usr)" .
# FIXME: it's possible to specify in OWL that 'bootstrap' and 'normal' are the
# only valid values.
:buildMode a owl:DatatypeProperty , owl:FunctionalProperty ;
rdfs:domain :ChunkReference ;
rdfs:range xsd:string .
## Chunk-specific properties
# build-system isn't included here, as it overlaps with the *-commands
# fields in an unfortunate way.
# Note that representing lists of things in RDF is a bit of a pain.
# http://smiy.sourceforge.net/olo/spec/orderedlistontology.html might
# be worth investigating.
:produces a owl:ObjectProperty , rdf:Seq ;
rdfs:domain :Chunk ;
rdfs:range :ChunkArtifact ;
rdfs:comment "Describes how this artifact is split once built." .
:preConfigureCommands a owl:DatatypeProperty , rdf:Seq ;
rdfs:domain :Chunk ;
rdfs:range xsd:string .
:configureCommands a owl:DatatypeProperty , rdf:Seq ;
rdfs:domain :Chunk ;
rdfs:range xsd:string .
:postConfigureCommands a owl:DatatypeProperty , rdf:Seq ;
rdfs:domain :Chunk ;
rdfs:range xsd:string .
:preBuildCommands a owl:DatatypeProperty , rdf:Seq ;
rdfs:domain :Chunk ;
rdfs:range xsd:string .
:buildCommands a owl:DatatypeProperty , rdf:Seq ;
rdfs:domain :Chunk ;
rdfs:range xsd:string .
:postBuildCommands a owl:DatatypeProperty , rdf:Seq ;
rdfs:domain :Chunk ;
rdfs:range xsd:string .
:preInstallCommands a owl:DatatypeProperty , rdf:Seq ;
rdfs:domain :Chunk ;
rdfs:range xsd:string .
:installCommands a owl:DatatypeProperty , rdf:Seq ;
rdfs:domain :Chunk ;
rdfs:range xsd:string .
:postInstallCommands a owl:DatatypeProperty , rdf:Seq ;
rdfs:domain :Chunk ;
rdfs:range xsd:string .
# Artifact properties
:includes a owl:DatatypeProperty, rdf:Seq ;
rdfs:domain :Artifact ;
rdfs:range xsd:string ;
rdfs:comment "A regular expression pattern. The results of a build are matched against this pattern and any that match will be included in that artifact." .
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