ChimeraResource

A ChimeraResourceBean is a uniform way to reference external data (RDF files, SPARQL queries, ontologies, templates, etc.) from any Chimera operation. It wraps a URL with a serialization format and optional authentication.

Properties

Property	Type	Required	Description
`url`	`String`	Yes	Resource location with a prefix indicating the source type (see below).
`serializationFormat`	`String`	Yes	Content format (e.g., `turtle`, `rdfxml`, `txt`, `csv`).
`authToken`	`String`	No	Bearer token for HTTP resources.
`username`	`String`	No	Username for HTTP basic auth.
`password`	`String`	No	Password for HTTP basic auth.
`authMethod`	`String`	No	Authentication method (e.g., `basic`).

Resource Types

Prefix	Source
`file://`	Local filesystem path
`http://` / `https://`	Remote HTTP endpoint
`classpath://`	Java classpath
`header://`	Camel message header
`property://`	Camel exchange property
`variable://`	Camel exchange variable

Serialization Formats

Format	Extensions	Usage
`turtle`	`.ttl`	RDF data
`rdfxml`	`.rdf`, `.owl`	RDF data
`ntriples`	`.nt`	RDF data
`jsonld`	`.jsonld`	RDF data
`n3`	`.n3`	RDF data
`nquads`	`.nq`	RDF data
`trig`	`.trig`	RDF data
`txt`	`.txt`, `.rq`	SPARQL queries, plain text

Example

Java DSLYAML

// File resource
ChimeraResourceBean triples = new ChimeraResourceBean(
    "file://./data/input.ttl", "turtle");

// HTTP resource with bearer token
ChimeraResourceBean remote = new ChimeraResourceBean(
    "https://example.org/data.ttl", "turtle", "my-token");

// Classpath resource
ChimeraResourceBean ontology = new ChimeraResourceBean(
    "classpath://ontologies/schema.owl", "rdfxml");

// Dynamic resource from a Camel header
ChimeraResourceBean dynamic = new ChimeraResourceBean(
    "header://sparqlQuery", "txt");

// Register beans
getCamelContext().getRegistry().bind("triples", triples);

- beans:
    - name: triples
      type: com.cefriel.util.ChimeraResourceBean
      properties:
        url: "file://./data/input.ttl"
        serializationFormat: "turtle"
    - name: remote
      type: com.cefriel.util.ChimeraResourceBean
      properties:
        url: "https://example.org/data.ttl"
        serializationFormat: "turtle"
        authToken: "my-token"
    - name: ontology
      type: com.cefriel.util.ChimeraResourceBean
      properties:
        url: "classpath://ontologies/schema.owl"
        serializationFormat: "rdfxml"

Beans are referenced in endpoint URIs with #bean:name (Java DSL) or #name (YAML).