private static bool TryGetGuidKey(IReadOnlyKeyValueCollection parameters, out GuidKey key)
{
if (parameters.TryGet("Type", out string type) && parameters.TryGet("Guid", out Guid guid))
{
key = GuidKey.Create(guid, type);
return(true);
}
key = null;
return(false);
}
private static bool TryGetInt64Key(IReadOnlyKeyValueCollection parameters, out Int64Key key)
{
if (parameters.TryGet("Type", out string type) && parameters.TryGet("ID", out long id))
{
key = Int64Key.Create(id, type);
return(true);
}
key = null;
return(false);
}
private static bool TryGetStringKey(IReadOnlyKeyValueCollection parameters, out StringKey key)
{
if (parameters.TryGet("Type", out string type) && parameters.TryGet("Identifier", out string identifier))
{
key = StringKey.Create(identifier, type);
return(true);
}
key = null;
return(false);
}
/// <summary>
/// Reads the value of <paramref name="key"/> in <paramref name="collection"/>.
/// If value is found and can be converted to <typeparamref name="T"/>, returns it.
/// Otherwise returns <paramref name="defaultValue"/> (if provided) or throws <see cref="InvalidOperationException"/>.
/// </summary>
/// <param name="collection">Collection of key-value pairs.</param>
/// <param name="key">Requested key.</param>
/// <param name="defaultValue">Optional default value if is not found or not convertible.</param>
/// <returns>Value of <paramref name="key"/> in <paramref name="collection"/>.</returns>
public static T Get <T>(this IReadOnlyKeyValueCollection collection, string key, T defaultValue)
{
Ensure.NotNull(collection, "collection");
T value;
if (collection.TryGet(key, out value))
{
return(value);
}
return(defaultValue);
}
/// <summary>
/// Reads the value of <paramref name="key"/> in <paramref name="collection"/>.
/// If value is found and can be converted to <typeparamref name="T"/>, returns it.
/// Otherwise throws <see cref="InvalidOperationException"/>.
/// </summary>
/// <param name="collection">Collection of key-value pairs.</param>
/// <param name="key">Requested key.</param>
/// <param name="defaultValue">Optional default value if is not found or not convertible.</param>
/// <returns>Value of <paramref name="key"/> in <paramref name="collection"/>.</returns>
public static T Get <T>(this IReadOnlyKeyValueCollection collection, string key)
{
Ensure.NotNull(collection, "collection");
T value;
if (collection.TryGet(key, out value))
{
return(value);
}
throw Ensure.Exception.InvalidOperation("Collection doesn't contain value of type '{0}' with key '{1}'.", typeof(T), key);
}
/// <summary>
/// Returns <c>true</c> if <paramref name="collection"/> contains <paramref name="key"/>.
/// </summary>
/// <param name="collection">Collection of key-value pairs.</param>
/// <param name="key">Requested key.</param>
/// <returns><c>true</c> if <paramref name="collection"/> contains <paramref name="key"/>; otherwise <c>false</c>.</returns>
public static bool Has(this IReadOnlyKeyValueCollection collection, string key)
{
Ensure.NotNull(collection, "collection");
Ensure.NotNull(key, "key");
if (collection.Keys.Contains(key))
{
return(true);
}
object value;
return(collection.TryGet(key, out value));
}
public void Load(IReadOnlyKeyValueCollection storage, object output)
{
// TODO: Not TryGet, UserKey is required!
if (output is UserEvent payload)
{
if (storage.TryGet(Name.UserKey, out IKey userKey))
{
payload.UserKey = userKey;
}
else
{
payload.UserKey = StringKey.Empty("User");
}
}
}
public bool TryGet <T>(string key, out T value)
{
Ensure.NotNullOrEmpty(key, "key");
if (keyType != null && key == "Type")
{
value = (T)(object)keyType;
return(true);
}
if (prefix != null)
{
key = prefix + key;
}
return(inner.TryGet(key, out value));
}
public bool TryGet <T>(string key, out T value)
{
Ensure.NotNull(key, "key");
object sourceValue;
if (TryGetValue(key, out sourceValue) && sourceValue != null)
{
return(ConvertTo(sourceValue, out value));
}
if (parentCollection != null)
{
if (parentCollection.TryGet <T>(key, out value))
{
return(true);
}
}
return(TryGetDefault(key, out value));
}
public static bool TryGetIsAutoFocus(this IReadOnlyKeyValueCollection metadata, out bool value)
{
return(metadata.TryGet("IsAutoFocus", out value));
}
public static bool TryGetLabel(this IReadOnlyKeyValueCollection metadata, out string value)
{
return(metadata.TryGet("Label", out value));
}
public static bool TryGetGridRowSpan(this IReadOnlyKeyValueCollection metadata, out int value)
{
Ensure.NotNull(metadata, "metadata");
return(metadata.TryGet("Grid.RowSpan", out value));
}