jsonschema-rs/jsonschema/src/keywords/dependencies.rs

87 lines
2.8 KiB
Rust

use crate::{
compilation::{compile_validators, context::CompilationContext, JSONSchema},
error::{no_error, CompilationError, ErrorIterator},
keywords::{
format_key_value_validators, required::RequiredValidator, CompilationResult, Validators,
},
validator::Validate,
};
use serde_json::{Map, Value};
pub(crate) struct DependenciesValidator {
dependencies: Vec<(String, Validators)>,
}
impl DependenciesValidator {
#[inline]
pub(crate) fn compile(schema: &Value, context: &CompilationContext) -> CompilationResult {
if let Value::Object(map) = schema {
let mut dependencies = Vec::with_capacity(map.len());
for (key, subschema) in map {
let s = match subschema {
Value::Array(_) => vec![RequiredValidator::compile(subschema)?],
_ => compile_validators(subschema, context)?,
};
dependencies.push((key.clone(), s))
}
Ok(Box::new(DependenciesValidator { dependencies }))
} else {
Err(CompilationError::SchemaError)
}
}
}
impl Validate for DependenciesValidator {
fn is_valid(&self, schema: &JSONSchema, instance: &Value) -> bool {
if let Value::Object(item) = instance {
self.dependencies
.iter()
.filter(|(property, _)| item.contains_key(property))
.all(move |(_, validators)| {
validators
.iter()
.all(move |validator| validator.is_valid(schema, instance))
})
} else {
true
}
}
fn validate<'a>(&self, schema: &'a JSONSchema, instance: &'a Value) -> ErrorIterator<'a> {
if let Value::Object(item) = instance {
let errors: Vec<_> = self
.dependencies
.iter()
.filter(|(property, _)| item.contains_key(property))
.flat_map(move |(_, validators)| {
validators
.iter()
.flat_map(move |validator| validator.validate(schema, instance))
})
.collect();
// TODO. custom error message for "required" case
Box::new(errors.into_iter())
} else {
no_error()
}
}
}
impl ToString for DependenciesValidator {
fn to_string(&self) -> String {
format!(
"dependencies: {{{}}}",
format_key_value_validators(&self.dependencies)
)
}
}
#[inline]
pub(crate) fn compile(
_: &Map<String, Value>,
schema: &Value,
context: &CompilationContext,
) -> Option<CompilationResult> {
Some(DependenciesValidator::compile(schema, context))
}