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RuleBuilder.cs
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RuleBuilder.cs
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#region License
// Copyright (c) Jeremy Skinner (http://www.jeremyskinner.co.uk)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// The latest version of this file can be found at https://github.com/jeremyskinner/FluentValidation
#endregion
namespace FluentValidation.Internal {
using System;
using System.Linq.Expressions;
using Validators;
/// <summary>
/// Builds a validation rule and constructs a validator.
/// </summary>
/// <typeparam name="T">Type of object being validated</typeparam>
/// <typeparam name="TProperty">Type of property being validated</typeparam>
public class RuleBuilder<T, TProperty> : IRuleBuilderOptions<T, TProperty>, IRuleBuilderInitial<T, TProperty>, IRuleBuilderInitialCollection<T,TProperty>, IExposesParentValidator<T> {
/// <summary>
/// The rule being created by this RuleBuilder.
/// </summary>
public PropertyRule Rule { get; }
/// <summary>
/// Parent validator
/// </summary>
public IValidator<T> ParentValidator { get; }
/// <summary>
/// Creates a new instance of the <see cref="RuleBuilder{T,TProperty}">RuleBuilder</see> class.
/// </summary>
public RuleBuilder(PropertyRule rule, IValidator<T> parent) {
Rule = rule;
ParentValidator = parent;
}
/// <summary>
/// Sets the validator associated with the rule.
/// </summary>
/// <param name="validator">The validator to set</param>
/// <returns></returns>
public IRuleBuilderOptions<T, TProperty> SetValidator(IPropertyValidator validator) {
validator.Guard("Cannot pass a null validator to SetValidator.", nameof(validator));
Rule.AddValidator(validator);
return this;
}
/// <summary>
/// Sets the validator associated with the rule. Use with complex properties where an IValidator instance is already declared for the property type.
/// </summary>
/// <param name="validator">The validator to set</param>
/// <param name="ruleSets"></param>
public IRuleBuilderOptions<T, TProperty> SetValidator(IValidator<TProperty> validator, params string[] ruleSets) {
validator.Guard("Cannot pass a null validator to SetValidator", nameof(validator));
var adaptor = new ChildValidatorAdaptor(validator, validator.GetType()) {
RuleSets = ruleSets
};
SetValidator(adaptor);
return this;
}
/// <summary>
/// Sets the validator associated with the rule. Use with complex properties where an IValidator instance is already declared for the property type.
/// </summary>
/// <param name="validatorProvider">The validator provider to set</param>
/// <param name="ruleSet"></param>
public IRuleBuilderOptions<T, TProperty> SetValidator<TValidator>(Func<T, TValidator> validatorProvider, params string[] ruleSets)
where TValidator : IValidator<TProperty> {
validatorProvider.Guard("Cannot pass a null validatorProvider to SetValidator", nameof(validatorProvider));
SetValidator(new ChildValidatorAdaptor(context => validatorProvider((T) context.InstanceToValidate), typeof (TValidator)) {
RuleSets = ruleSets
});
return this;
}
/// <summary>
/// Sets the validator associated with the rule. Use with complex properties where an IValidator instance is already declared for the property type.
/// </summary>
/// <param name="validatorProvider">The validator provider to set</param>
public IRuleBuilderOptions<T,TProperty> SetValidator<TValidator>(Func<IValidationContext, TValidator> validatorProvider) where TValidator : IValidator<TProperty> {
validatorProvider.Guard("Cannot pass a null validatorProvider to SetValidator", nameof(validatorProvider));
SetValidator(new ChildValidatorAdaptor(context => validatorProvider(context), typeof (TValidator)));
return this;
}
IRuleBuilderOptions<T, TProperty> IConfigurable<PropertyRule, IRuleBuilderOptions<T, TProperty>>.Configure(Action<PropertyRule> configurator) {
configurator(Rule);
return this;
}
IRuleBuilderInitial<T, TProperty> IConfigurable<PropertyRule, IRuleBuilderInitial<T, TProperty>>.Configure(Action<PropertyRule> configurator) {
configurator(Rule);
return this;
}
IRuleBuilderInitialCollection<T, TProperty> IConfigurable<CollectionPropertyRule<TProperty>, IRuleBuilderInitialCollection<T, TProperty>>.Configure(Action<CollectionPropertyRule<TProperty>> configurator) {
configurator((CollectionPropertyRule<TProperty>) Rule);
return this;
}
}
internal interface IExposesParentValidator<T> {
IValidator<T> ParentValidator { get; }
}
}