87 lines
2.3 KiB
Rust
87 lines
2.3 KiB
Rust
use crate::{
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compilation::{context::CompilationContext, JSONSchema},
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error::{error, no_error, ErrorIterator, ValidationError},
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keywords::CompilationResult,
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paths::{InstancePath, JSONPointer},
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validator::Validate,
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};
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use serde_json::{Map, Value};
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pub(crate) struct MaxLengthValidator {
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limit: u64,
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schema_path: JSONPointer,
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}
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impl MaxLengthValidator {
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#[inline]
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pub(crate) fn compile(schema: &Value, schema_path: JSONPointer) -> CompilationResult {
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if let Some(limit) = schema.as_u64() {
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Ok(Box::new(MaxLengthValidator { limit, schema_path }))
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} else {
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Err(ValidationError::format(
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JSONPointer::default(),
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schema_path,
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schema,
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"max_length int validation",
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))
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}
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}
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}
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impl Validate for MaxLengthValidator {
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fn is_valid(&self, _: &JSONSchema, instance: &Value) -> bool {
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if let Value::String(item) = instance {
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if (item.chars().count() as u64) > self.limit {
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return false;
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}
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}
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true
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}
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fn validate<'a, 'b>(
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&self,
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_schema: &'a JSONSchema,
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instance: &'b Value,
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instance_path: &InstancePath,
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) -> ErrorIterator<'b> {
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if let Value::String(item) = instance {
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if (item.chars().count() as u64) > self.limit {
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return error(ValidationError::max_length(
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self.schema_path.clone(),
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instance_path.into(),
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instance,
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self.limit,
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));
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}
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}
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no_error()
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}
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}
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impl core::fmt::Display for MaxLengthValidator {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "maxLength: {}", self.limit)
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}
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}
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#[inline]
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pub(crate) fn compile<'a>(
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_: &'a Map<String, Value>,
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schema: &'a Value,
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context: &CompilationContext,
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) -> Option<CompilationResult<'a>> {
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let schema_path = context.as_pointer_with("maxLength");
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Some(MaxLengthValidator::compile(schema, schema_path))
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}
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#[cfg(test)]
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mod tests {
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use crate::tests_util;
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use serde_json::json;
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#[test]
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fn schema_path() {
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tests_util::assert_schema_path(&json!({"maxLength": 1}), &json!("ab"), "/maxLength")
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}
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}
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