rdf_fusion_functions/scalar/strings/
sha384.rs

1use crate::scalar::dispatch::dispatch_unary_owned_typed_value;
2use crate::scalar::sparql_op_impl::{
3    ScalarSparqlOpImpl, create_typed_value_sparql_op_impl,
4};
5use crate::scalar::{ScalarSparqlOp, ScalarSparqlOpSignature, SparqlOpArity};
6use rdf_fusion_encoding::typed_value::TypedValueEncoding;
7use rdf_fusion_extensions::functions::BuiltinName;
8use rdf_fusion_extensions::functions::FunctionName;
9use rdf_fusion_model::{SimpleLiteral, ThinError, TypedValue, TypedValueRef};
10use sha2::{Digest, Sha384};
11
12#[derive(Debug, Hash, PartialEq, Eq)]
13pub struct Sha384SparqlOp;
14
15impl Default for Sha384SparqlOp {
16    fn default() -> Self {
17        Self::new()
18    }
19}
20
21impl Sha384SparqlOp {
22    const NAME: FunctionName = FunctionName::Builtin(BuiltinName::Sha384);
23
24    pub fn new() -> Self {
25        Self {}
26    }
27}
28
29impl ScalarSparqlOp for Sha384SparqlOp {
30    fn name(&self) -> &FunctionName {
31        &Self::NAME
32    }
33
34    fn signature(&self) -> ScalarSparqlOpSignature {
35        ScalarSparqlOpSignature::default_with_arity(SparqlOpArity::Fixed(1))
36    }
37    fn typed_value_encoding_op(
38        &self,
39    ) -> Option<Box<dyn ScalarSparqlOpImpl<TypedValueEncoding>>> {
40        Some(create_typed_value_sparql_op_impl(|args| {
41            dispatch_unary_owned_typed_value(
42                &args.args[0],
43                |value| {
44                    let string = match value {
45                        TypedValueRef::SimpleLiteral(value) => value.value,
46                        TypedValueRef::LanguageStringLiteral(value) => value.value,
47                        _ => return ThinError::expected(),
48                    };
49
50                    let mut hasher = Sha384::new();
51                    hasher.update(string);
52                    let result = hasher.finalize();
53                    let value = format!("{result:x}");
54
55                    Ok(TypedValue::SimpleLiteral(SimpleLiteral { value }))
56                },
57                ThinError::expected,
58            )
59        }))
60    }
61}
rdf_fusion_functions/scalar/strings/sha384.rs

rdf_fusion_functions/scalar/strings/
sha384.rs
