private static List <string> GetGroups(NzbParserContext context, XContainer groupsElement)
{
return(groupsElement?
.Elements(context.Namespace + NzbKeywords.Group)
.Select(g => g.Value)
.ToList());
}
public static XElement FindFirstElement(XContainer node, string localName)
{
var nodeElements = node?.Elements();
if (nodeElements == null && nodeElements.Count() == 0)
{
return(null);
}
foreach (var element in nodeElements)
{
if (element.Name.LocalName == localName)
{
return(element);
}
}
foreach (var element in nodeElements)
{
var foundElement = FindFirstElement(element, localName);
if (foundElement != null)
{
return(foundElement);
}
}
return(null);
}
private static List <NzbSegment> GetSegments(NzbParserContext context, XContainer segentsElement)
{
return(segentsElement?
.Elements(context.Namespace + NzbKeywords.Segment)
.Select(GetSegment)
.ToList());
}
private static NntpGroups GetGroups(NzbParserContext context, XContainer groupsElement)
{
IEnumerable <string> groups = groupsElement?
.Elements(context.Namespace + NzbKeywords.Group)
.Select(g => g.Value);
return(new NntpGroups(groups));
}
/// <summary>
/// Returns whether a descendant of the specified <see cref="XElement" /> exists.
/// </summary>
/// <param name="element">The <see cref="XElement" />.</param>
/// <param name="elementName">The name of the descendent node.</param>
/// <param name="immediateOnly">Whether or not to search only the element's immediate descendants.</param>
/// <returns><c>true</c> if the node exists or <c>false</c> otherwise.</returns>
protected static bool Exists(XContainer element, string elementName, bool immediateOnly)
{
if (immediateOnly)
{
return(element?.Elements().Any(d => d.Name.LocalName.Equals(elementName, StringComparison.OrdinalIgnoreCase)) ?? false);
}
return(element?.Descendants().Any(d => d.Name.LocalName.Equals(elementName, StringComparison.OrdinalIgnoreCase)) ?? false);
}
/// <summary>
/// Gets XML configuration parameter value as string.
/// </summary>
/// <param name="parametersElement">Root container element with 'parameter' nodes.</param>
/// <param name="parameterName">Name of the parameter.</param>
/// <param name="defaultValue">Default value returned if the parameter name is not found.</param>
/// <returns>Parameter value as string.</returns>
private static string GetParameterValue(XContainer parametersElement, string parameterName, string defaultValue)
{
var parameterElement = parametersElement.Elements("parameter").FirstOrDefault(x =>
{
var xAttribute = x.Attribute("name");
return(xAttribute != null && xAttribute.Value.ToLower().Equals(parameterName.ToLower()));
});
return(parameterElement != null ? parameterElement.Value : defaultValue);
}
/// <summary>
/// Loads a structure layout based upon an XML container's children.
/// </summary>
/// <param name="layoutTag">The collection of structure field tags to parse.</param>
/// <returns>The structure layout that was loaded.</returns>
public static StructureLayout LoadLayout(XContainer layoutTag)
{
StructureLayout layout = new StructureLayout();
foreach (XElement element in layoutTag.Elements())
{
HandleElement(layout, element);
}
return(layout);
}
private static void DeleteItems(XContainer items)
{
foreach (var element in items.Elements())
{
var database = Factory.GetDatabase(element.GetAttributeValue("database"));
var obj = database?.GetItem(element.GetAttributeValue("id"));
obj?.Delete();
}
}
/// <summary>
/// Deserializes any script writers defined in the specified <see cref="XContainer"/>.
/// </summary>
/// <param name="parent">The <see cref="XContainer"/> object containing the XML definitions for the script writers.</param>
private void DeserializeScriptWriters(XContainer parent)
{
foreach (var element in parent.Elements(_hyperDbXmlNamespace + "add"))
{
_scriptWriterTypes.TryAdd(
GetRequiredAttribute(element, "name"),
Type.GetType(GetRequiredAttribute(element, "type"), true) // Deliberately throw an exception if we can't load the type
);
}
}
private static string GetElementValue(XContainer parent, string name)
{
var elem = parent.Elements(name).FirstOrDefault();
if (elem == null)
{
throw new Exception("Missing element " + name);
}
return(elem.Value);
}
/// <summary>
/// Adds the event to the collection.
/// </summary>
/// <param name="element">The event being added.</param>
private void AddEvent(XContainer element)
{
foreach (XElement child in element.Elements())
{
if (!this.Contains(child))
{
this.Add(child);
}
}
}
static void PrintDirectories(XContainer parent, string path)
{
foreach (XElement element in parent.Elements("dir"))
{
string dir = element.Attribute("name").Value;
string fullPath = path == null ? dir : $"{path}/{dir}";
Console.WriteLine(fullPath);
PrintDirectories(element, fullPath);
}
}
private static Dictionary <string, string> GetJoins(XContainer ele)
{
if (ele == null)
{
return(new Dictionary <string, string>());
}
var ret = ele.Elements().ToDictionary(j => j.Attribute("name").Value, j => j.Value);
return(ret);
}
private static Dictionary <string, string> LoadKeyValueRule(XContainer doc, string section, string container)
{
IEnumerable <XElement> step1Pre = doc.Elements(section).Elements(container);
return(step1Pre.Select(element => new { Key = element.Value.Split('|')[0], Value = element.Value.Split('|')[1] })
.GroupBy(arg => arg.Key, arg => arg.Value, (key, values) => new { Key = key, Value = values.First() })
.ToDictionary(arg => arg.Key, arg => arg.Value));
}
/// <summary>
/// This method returns a list of elements matching the specified name, using the specified string comparison method.
/// </summary>
/// <param name="container">The XML container instance.</param>
/// <param name="name">The name of the element to locate.</param>
/// <param name="comparisonType">One of the System.StringComparison values.</param>
/// <returns>List of elements matching the specified name.</returns>
public static IEnumerable <XElement> Elements(this XContainer container, XName name, StringComparison comparisonType)
{
foreach (XElement element in container.Elements())
{
if (String.Compare(element.Name.LocalName, name.LocalName, comparisonType) == 0)
{
yield return(element);
}
}
}
/// <summary>
/// Gets the first (in document order) child element with the specified local name and one of the namespaces.
/// </summary>
/// <param name="container">The node containing the child elements.</param>
/// <param name="namespaces">A collection of namespaces used when searching for the child element.</param>
/// <param name="localName">The local (unqualified) name to match.</param>
/// <returns>A <see cref="XElement" /> that matches the specified name and namespace, or null.</returns>
public static XElement Element(this XContainer container, IEnumerable <XNamespace> namespaces, string localName)
{
Contract.Requires(container != null);
Contract.Requires(namespaces != null);
Contract.Requires(!string.IsNullOrWhiteSpace(localName));
return(container.Elements()
.FirstOrDefault(
e => e.Name.LocalName == localName &&
namespaces.Contains(e.Name.Namespace)));
}
private static IDictionary <string, object> LoadCommandParameters(XContainer xe)
{
return
(xe
.Elements(XName.Get("parameter", _menuDescriptorSchemaUri))
.ToDictionary(
parameter => (string)parameter.Attribute(XName.Get("name")),
parameter => (object)parameter.Value,
StringComparer.OrdinalIgnoreCase)
.AsReadOnly());
}
public static IEnumerable <XElement> ElementsIgnoreCase(this XContainer container, XName name)
{
foreach (var element in container.Elements())
{
if (element.Name.NamespaceName == name.NamespaceName &&
string.Equals(element.Name.LocalName, name.LocalName, StringComparison.OrdinalIgnoreCase))
{
yield return(element);
}
}
}
private static IEnumerable <SimpleValueValidator> FindSimpleValueValidator(XContainer parent)
{
foreach (var simpleElement in parent.Elements("SimpleValue"))
{
var simple = new SimpleValueValidator();
simple.Id = simpleElement.Attribute("Id").Value;
simple.Validation = simpleElement.Attribute("Validation").Value;
yield return(simple);
}
}
public static XElement Element(this XContainer node, XName name, bool ignoreNamespace)
{
if (ignoreNamespace)
{
return(node.Elements().FirstOrDefault(e => e.Name.LocalName == name.LocalName));
}
else
{
return(node.Element(name));
}
}
// From https://stackoverflow.com/a/9335141/6651
public static IEnumerable <XElement> ElementsCaseInsensitive(XContainer source, XName name)
{
foreach (XElement e in source.Elements())
{
if (e.Name.Namespace.NamespaceName.Equals(name.Namespace.NamespaceName, StringComparison.OrdinalIgnoreCase) &&
e.Name.LocalName.Equals(name.LocalName, StringComparison.OrdinalIgnoreCase))
{
yield return(e);
}
}
}
protected ConditionSet([NotNull] XContainer el) : this()
{
if (el == null)
{
throw new ArgumentNullException(nameof(el));
}
foreach (XElement cel in el.Elements())
{
Add(Parse(cel));
}
}
private static XElement GetElement(XContainer element, XName name)
{
if (element == null)
{
throw new ArgumentNullException("element");
}
var elems = element.Elements().Where(xElement => xElement.Name.Equals(name));
var xElements = elems as XElement[] ?? elems.ToArray();
return(xElements.Any() ? xElements.ElementAt(0) : null);
}
/// <summary>
/// Returns the element with the specified name, or creates and adds one if required.
/// </summary>
/// <param name="parent"></param>
/// <param name="name"></param>
/// <returns></returns>
public static XElement ElementOrAdd(this XContainer parent, XName name, Func <XElement, bool> predicate)
{
var e = parent.Elements(name).FirstOrDefault(predicate);
if (e == null)
{
parent.Add(e = new XElement(name));
}
return(e);
}
public static IEnumerable <XElement> FindElementSequences(this XContainer container, List <string> names)
{
foreach (XElement parent in container.Elements())
{
XText child = parent.GetSequenceChild(names);
if (child != null)
{
yield return(parent);
}
}
}
// <summary>
// Gets the first (in document order) child element with the specified local name and one of the namespaces.
// </summary>
// <param name="container">The node containing the child elements.</param>
// <param name="namespaces">A collection of namespaces used when searching for the child element.</param>
// <param name="localName">The local (unqualified) name to match.</param>
// <returns>A <see cref="XElement" /> that matches the specified name and namespace, or null.</returns>
public static XElement Element(this XContainer container, IEnumerable <XNamespace> namespaces, string localName)
{
DebugCheck.NotNull(container);
DebugCheck.NotNull(namespaces);
DebugCheck.NotEmpty(localName);
return(container.Elements()
.FirstOrDefault(
e => e.Name.LocalName == localName &&
namespaces.Contains(e.Name.Namespace)));
}
public static IEnumerable <XElement> GetRequiredElements
(
[NotNull] this XContainer container,
[NotNull] string elementName,
bool ignoreNamespace = true
)
{
var elements = ignoreNamespace
? container.Elements().Where(a => a.Name.LocalName == elementName)
: container.Elements(elementName);
var requiredElements = elements.ToList();
if (!requiredElements.Any())
{
throw new InvalidDataException($"Required element \"{elements}\" not found.");
}
return(requiredElements);
}
//[Variation(Priority = 2, Desc = "XElement.AncestorsAndSelf(XName) I.", Param = true)]
//[Variation(Priority = 2, Desc = "XElement.AncestorsAndSelf(XName) II.", Param = false)]
#region Methods
private void VerifyDeleteNodes <T>(IEnumerable <T> toRemove) where T : XNode
{
// copy of the data to delete
IEnumerable <XNode> toRemoveCopy = toRemove.OfType <XNode>().ToList();
// Create array of parents
IEnumerable <XContainer> parents = toRemove.Select(x => (x == null) ? (XContainer)null : (x.Parent != null ? (XContainer)x.Parent : (XContainer)x.Document)).ToList();
// calculate the expected results for the parents of the processed elements
var expectedNodesForParent = new Dictionary <XContainer, List <ExpectedValue> >();
foreach (XContainer p in parents)
{
if (p != null)
{
expectedNodesForParent.TryAdd(p, p.Nodes().Except(toRemoveCopy.Where(x => x != null)).Select(a => new ExpectedValue(!(a is XText), a)).ProcessNodes().ToList());
}
}
toRemove.Remove();
IEnumerator <XNode> copyToRemove = toRemoveCopy.GetEnumerator();
IEnumerator <XContainer> parentsEnum = parents.GetEnumerator();
// verify on parents: deleted elements should not be found
while (copyToRemove.MoveNext() && parentsEnum.MoveNext())
{
XNode node = copyToRemove.Current;
if (node != null)
{
XContainer parent = parentsEnum.Current;
TestLog.Compare(node.Parent, null, "Parent of deleted");
TestLog.Compare(node.Document, null, "Document of deleted");
TestLog.Compare(node.NextNode, null, "NextNode of deleted");
TestLog.Compare(node.PreviousNode, null, "PreviousNode of deleted");
if (parent != null)
{
TestLog.Compare(parent.Nodes().Where(x => x == node).IsEmpty(), "Nodes axis");
if (node is XElement)
{
var e = node as XElement;
e.Verify();
TestLog.Compare(parent.Element(e.Name) != node, "Element axis");
TestLog.Compare(parent.Elements(e.Name).Where(x => x == e).IsEmpty(), "Elements axis");
}
// Compare the rest of the elements
TestLog.Compare(expectedNodesForParent[parent].EqualAll(parent.Nodes(), XNode.EqualityComparer), "The rest of the nodes");
}
}
}
}
private static DataRow AddRecord(DataTable rs, XContainer rsXml)
{
var values = new List <object>();
foreach (XElement fieldNode in rsXml.Elements())
{
AddColumn(rs, fieldNode.Name.LocalName);
values.Add(fieldNode.Value);
}
return(rs.Rows.Add(values.ToArray()));
}
private string PrepareBookTitle(XContainer info)
{
XElement element = info.Elements(_ns + "book-title").FirstOrDefault();
if (element == null)
{
return(string.Empty);
}
return(element.Value);
}