ValidatorUtils.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / Configuration / System / Configuration / ValidatorUtils.cs / 1305376 / ValidatorUtils.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System; 
using System.Collections; 
using System.IO;
using System.Reflection; 
using System.Security.Permissions;
using System.Xml;
using System.Collections.Specialized;
using System.Globalization; 
using System.ComponentModel;
using System.Security; 
using System.Text; 
using System.Text.RegularExpressions;
 
namespace System.Configuration {

    internal static class ValidatorUtils {
 
        public static void HelperParamValidation(object value, Type allowedType) {
            if (value == null) { 
                return; 
            }
 
            if (value.GetType() != allowedType) {
                throw new ArgumentException(SR.GetString(SR.Validator_value_type_invalid), String.Empty);
            }
        } 

        public static void ValidateScalar(T value, T min, T max, T resolution, bool exclusiveRange) where T : IComparable { 
            ValidateRangeImpl(value, min, max, exclusiveRange); 

            // Validate the resolution 
            ValidateResolution(resolution.ToString(), Convert.ToInt64(value, CultureInfo.InvariantCulture), Convert.ToInt64(resolution, CultureInfo.InvariantCulture));
        }
        private static void ValidateRangeImpl( T value, T min, T max, bool exclusiveRange ) where T : IComparable {
            IComparable  itfValue           = (IComparable)value; 
            IComparable  itfMax             = (IComparable)max;
            bool            valueIsInRange     = false; 
 
            // Check min range
            if ( itfValue.CompareTo( min ) >= 0 ) { 
                // TRUE: value >= min
                valueIsInRange = true;
            }
 
            if ( valueIsInRange && ( itfValue.CompareTo( max ) > 0 ) ) {
                // TRUE: value > max 
                valueIsInRange = false; 
            }
 
            // Throw range validation error
            if ( !( valueIsInRange ^ exclusiveRange ) ) {
                string error = null;
 
                // First group of errors - the min and max range are the same. i.e. the valid value must be the same/equal to the min(max)
                if ( min.Equals( max ) ) { 
                    if ( exclusiveRange ) { 
                        // Valid values are outside of range. I.e has to be different then min( or max )
                        error =  SR.GetString( SR.Validation_scalar_range_violation_not_different ); 
                    }
                    else {
                        // Valid values are inside the range. I.e. has to be equal to min ( or max )
                        error = SR.GetString( SR.Validation_scalar_range_violation_not_equal ); 
                    }
                } 
                // Second group of errors: min != max. I.e. its a range 
                else {
                    if ( exclusiveRange ) { 
                        // Valid values are outside of range.
                        error =  SR.GetString( SR.Validation_scalar_range_violation_not_outside_range );
                    }
                    else { 
                        // Valid values are inside the range. I.e. has to be equal to min ( or max )
                        error = SR.GetString( SR.Validation_scalar_range_violation_not_in_range ); 
                    } 
                }
 
                throw new ArgumentException( String.Format( CultureInfo.InvariantCulture,
                                                            error,
                                                            min.ToString(),
                                                            max.ToString() ) ); 
            }
        } 
 
        private static void ValidateResolution(string resolutionAsString, long value, long resolution) {
            Debug.Assert(resolution > 0, "resolution > 0"); 

            if ((value % resolution) != 0) {
                throw new ArgumentException(SR.GetString(SR.Validator_scalar_resolution_violation, resolutionAsString));
            } 
        }
 
        public static void ValidateScalar(TimeSpan value, TimeSpan min, TimeSpan max, long resolutionInSeconds, bool exclusiveRange) { 
            ValidateRangeImpl(value, min, max, exclusiveRange);
 
            // Validate the resolution
            if (resolutionInSeconds > 0) {
                ValidateResolution(TimeSpan.FromSeconds( resolutionInSeconds ).ToString(), value.Ticks, resolutionInSeconds * TimeSpan.TicksPerSecond);
            } 
        }
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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