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using System;
using System.Collections.Generic;
using System.Linq;
using MediaBrowser.Model.Dto;
namespace MediaBrowser.Model.Services
{
public class QueryParamCollection : List<NameValuePair>
{
public QueryParamCollection()
{
}
public QueryParamCollection(IDictionary<string, string> headers)
{
foreach (var pair in headers)
{
Add(pair.Key, pair.Value);
}
}
private StringComparison GetStringComparison()
{
return StringComparison.OrdinalIgnoreCase;
}
private StringComparer GetStringComparer()
{
return StringComparer.OrdinalIgnoreCase;
}
/// <summary>
/// Adds a new query parameter.
/// </summary>
public void Add(string key, string value)
{
Add(new NameValuePair(key, value));
}
public void Set(string key, string value)
{
if (string.IsNullOrWhiteSpace(value))
{
var stringComparison = GetStringComparison();
var parameters = this.Where(p => string.Equals(key, p.Name, stringComparison)).ToArray();
foreach (var p in parameters)
{
Remove(p);
}
return;
}
foreach (var pair in this)
{
var stringComparison = GetStringComparison();
if (string.Equals(key, pair.Name, stringComparison))
{
pair.Value = value;
return;
}
}
Add(key, value);
}
/// <summary>
/// True if the collection contains a query parameter with the given name.
/// </summary>
public bool ContainsKey(string name)
{
return this.Any(p => p.Name == name);
}
/// <summary>
/// Removes all parameters of the given name.
/// </summary>
/// <returns>The number of parameters that were removed</returns>
/// <exception cref="ArgumentNullException"><paramref name="name" /> is null.</exception>
public int Remove(string name)
{
return RemoveAll(p => p.Name == name);
}
public string Get(string name)
{
return GetValues(name).FirstOrDefault();
}
public string[] GetValues(string name)
{
var stringComparison = GetStringComparison();
return this.Where(p => string.Equals(p.Name, name, stringComparison)).Select(p => p.Value).ToArray();
}
public Dictionary<string, string> ToDictionary()
{
var stringComparer = GetStringComparer();
var headers = new Dictionary<string, string>(stringComparer);
foreach (var pair in this)
{
headers[pair.Name] = pair.Value;
}
return headers;
}
public IEnumerable<string> Keys
{
get { return this.Select(i => i.Name); }
}
/// <summary>
/// Gets or sets a query parameter value by name. A query may contain multiple values of the same name
/// (i.e. "x=1&x=2"), in which case the value is an array, which works for both getting and setting.
/// </summary>
/// <param name="name">The query parameter name</param>
/// <returns>The query parameter value or array of values</returns>
public string this[string name]
{
get { return Get(name); }
set
{
Set(name, value);
//var parameters = this.Where(p => p.Name == name).ToArray();
//var values = new[] { value };
//for (int i = 0; ; i++)
//{
// if (i < parameters.Length && i < values.Length)
// {
// if (values[i] == null)
// Remove(parameters[i]);
// else if (values[i] is NameValuePair)
// this[IndexOf(parameters[i])] = (NameValuePair)values[i];
// else
// parameters[i].Value = values[i];
// }
// else if (i < parameters.Length)
// Remove(parameters[i]);
// else if (i < values.Length)
// {
// if (values[i] != null)
// {
// if (values[i] is NameValuePair)
// Add((NameValuePair)values[i]);
// else
// Add(name, values[i]);
// }
// }
// else
// break;
//}
}
}
}
}
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