/// <summary>
/// Execute the specified statement synchronously, returning the set of results.
/// </summary>
internal RowSet ExecuteResults(Cql type, Statement statement)
{
switch (type)
{
case Cql.Insert:
case Cql.Update:
case Cql.Delete:
// if there are no pending queries that will not return results
_batchLock.Take();
if (_batchReturnsResults || _batch.Count == 0)
{
_batchLock.Release();
return(_session.Execute(statement));
}
_batchPageSize = statement.PageSize;
// add this statement
_batch.Add(statement);
// execute the batch - releases the lock
return(ExecuteBatch(false));
default:
// execute the statement synchronously
return(_session.Execute(statement));
}
}
//-------------------------------------------//
/// <summary>
/// Derive a collection of one type from another, optionally with a predicate.
/// </summary>
public static ArrayRig <B> Derive <A, B>(this IEnumerable <A> collection, Func <A, B> mapper, Func <A, bool> predicate = null)
{
ArrayRig <B> rig = new ArrayRig <B>();
// was the predicate supplied?
if (predicate == null)
{
// no, perform the mapping without
foreach (A item in collection)
{
rig.Add(mapper(item));
}
}
else
{
// yes, perform the mapping with the predicate
foreach (A item in collection)
{
if (predicate(item))
{
rig.Add(mapper(item));
}
}
}
return(rig);
}
/// <summary>
/// Move all current branches to the next search node that corresponds to the specified key.
/// Returns if there is at least one value on the current branches.
/// </summary>
public bool Next(TKey key)
{
// skip if no branches
if (!_root.leavesSet)
{
return(false);
}
// reset the current values
Values.Reset();
// get the branches to iterate
int count = Branches.Count;
// always check the root branch
foreach (Branch leaf in _root.leaves)
{
// if key equals search key
if (leaf.key.Equals(key))
{
// add next branch
Branches.Enqueue(leaf);
// if value - add it
if (leaf.valueSet)
{
Values.Add(leaf.value);
}
}
}
// iterate branches to search
while (--count >= 0)
{
Branches.Dequeue();
if (Branches.Current.leavesSet)
{
// iterate leaves of current branches
foreach (Branch leaf in Branches.Current.leaves)
{
// if key equals search key
if (leaf.key.Equals(key))
{
// add next branch to the end of the queue
Branches.Enqueue(leaf);
// if value - add it
if (leaf.valueSet)
{
Values.Add(leaf.value);
}
}
}
}
}
return(Values.Count != 0);
}
/// <summary>
/// Seek the stream.
/// </summary>
public override long Seek(long offset, SeekOrigin origin)
{
if (_initialize)
{
Initialize(true);
}
switch (origin)
{
case SeekOrigin.Begin:
if (_position + _sectionPosition == offset)
{
return(offset);
}
_position = offset;
break;
case SeekOrigin.Current:
_position += offset;
break;
case SeekOrigin.End:
if (_position + _sectionPosition == _length - offset)
{
return(_position + _sectionPosition);
}
_position = _length - offset;
break;
}
// determine the section index
var sectionIndex = (int)(_position / _sectionSize);
if (sectionIndex != _sectionIndex)
{
_sectionIndex = sectionIndex;
if (_sectionIndex >= _sectionCount)
{
while (_sectionIndex >= _sections.Count)
{
_sections.Add(new BlobSection());
}
_sectionCount = _sectionIndex + 1;
}
_section = _sections[_sectionIndex];
}
// update the position within the current section
_sectionPosition = (int)(_position % _sectionSize);
// update the overrall section position
_position -= _sectionPosition;
return(_position + _sectionPosition);
}
/// <summary>
/// Set the content of the element the builder represents.
/// </summary>
public ElementBuilder SetContent(string content)
{
if (Content == null)
{
Content = new ArrayRig <Teple <string, IFunc <string> > >(1);
}
else
{
Content.Clear();
}
Content.Add(new Teple <string, IFunc <string> >(content, null));
return(this);
}
/// <summary>
/// Add a cluster to the current cluster connections.
/// </summary>
public static MetaCluster AddCluster(ArrayRig <string> entryPointAddresses, int port = 0, string username = null, string password = null)
{
var cluster = new MetaCluster(entryPointAddresses, port, username, password);
// if the default cluster has not been set assign the new cluster
if (_defaultCluster == null)
{
DefaultCluster = cluster;
}
Clusters.Add(cluster);
return(cluster);
}
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
{
var array = new ArrayRig <object>();
foreach (KeyValuePair <string, HttpPostParam <string> > entry in ParamsStrings)
{
array.Add(entry);
}
foreach (KeyValuePair <string, HttpPostParam <ArrayRig <byte> > > entry in ParamsBytes)
{
array.Add(entry);
}
return(array.GetEnumerator());
}
/// <summary>
/// Creates an iterator for split string with the possibility of escaping
/// with two separators which will be reduced to one.
/// </summary>
public static ArrayRig <string> SplitEscaped(this string str, char separator)
{
// the collection of strings
ArrayRig <string> split = new ArrayRig <string>();
int indexStart = 0;
int indexEnd = 0;
bool removeEscape = false;
while (true)
{
// get the next index
indexEnd = str.IndexOf(separator, indexStart);
if (indexEnd > -1 && indexEnd + 1 < str.Length)
{
// check the next character
if (str[indexEnd + 1] == separator)
{
removeEscape = true;
}
else
{
// do we have to escape double characters in this string?
if (removeEscape)
{
split.Add(str.Section(indexStart, indexEnd).Replace(separator + separator.ToString(), separator.ToString()));
}
else
{
split.Add(str.Section(indexStart, indexEnd));
}
}
indexStart = indexEnd + 1;
}
else
{
// add the last string to the collection
if (removeEscape)
{
split.Add(str.Section(indexStart, str.Length).Replace(separator + separator.ToString(), separator.ToString()));
}
else
{
split.Add(str.Section(indexStart, str.Length));
}
break;
}
}
return(split);
}
/// <summary>
/// Add a cql keyword to the query.
/// </summary>
public void Add(Cql cql)
{
if (Keywords.Count == 0)
{
_type = cql;
}
Keywords.Add(cql);
// if the last set of values is not empty
if (_currentSetCount != 0)
{
// add the last set count
Sets.Add(_currentSetCount);
_currentSetCount = 0;
}
}
/// <summary>
/// Get all headers.
/// </summary>
public ArrayRig <Teple <string, string> > GetAll()
{
ArrayRig <Teple <string, string> > collection = new ArrayRig <Teple <string, string> >();
if (Accept != null)
{
collection.Add(new Teple <string, string>("Accept", Accept));
}
foreach (object key in Headers)
{
collection.Add(new Teple <string, string>(key.ToString(), Headers[key.ToString()]));
}
return(collection);
}
/// <summary>
/// Dispose of the data cluster and all related resources.
/// </summary>
public void Dispose()
{
ArrayRig <Keyspace> keyspaces = new ArrayRig <Keyspace>();
// iterate and dispose of Keyspaces
foreach (var keyspace in Keyspaces)
{
keyspaces.Add(keyspace.Value);
}
foreach (var keyspace in keyspaces)
{
keyspace.Dispose();
}
_lock.Take();
Keyspaces.Clear();
Keyspaces = null;
_lock.Release();
// remove the cluster from the manager
ManagerCql.RemoveCluster(this);
// dispose of the cassandra cluster
Cluster.Shutdown();
Cluster.Dispose();
}
/// <summary>
/// Add a root path and callback for the sub path.
/// </summary>
public void Add(string path, HttpMethod methods, IAction <string, HttpRequest> callback)
{
if (string.IsNullOrEmpty(path))
{
throw new InvalidOperationException("Null or empty paths aren't allowed. Use the DefaultCallback field.");
}
path = path.ToLowercase();
if (path[0] == Chars.ForwardSlash)
{
path = path.Substring(1);
}
_lock.Take();
ArrayRig <Route> routes;
if (_routes.TryGetValue(path, out routes))
{
foreach (var route in routes)
{
if (route.Methods.Is(methods))
{
throw new Exception("Route methods cannot be defined twice.");
}
}
routes.Add(new Route(methods, callback));
}
else
{
routes = new ArrayRig <Route>();
routes.Add(new Route(methods, callback));
_routes.Add(path, routes);
}
_lock.Release();
}
/// <summary>
/// Add an item to be considered for the average.
/// </summary>
virtual public void Add(double _item)
{
// add the item to the batch
batch.Add(_item);
if (batch.Count == batchSize)
{
// calculate the current batch average
average = 0;
foreach (double item in batch)
{
average += item;
}
average /= batch.Count;
batch.Reset();
if (filled)
{
// set a batch average
batches[index] = average / batch.Count;
++index;
if (index == batches.Count)
{
index = 0;
}
}
else
{
// add a new batch average
batches.Add(average / batch.Count);
filled = batches.Count == batchCount;
}
}
refresh = true;
}
/// <summary>
/// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
/// </summary>
public virtual void Dispose()
{
if (_stopped)
{
return;
}
_stopped = true;
try {
// get a collection of the current connections
var connections = new ArrayRig <UdpConnection>();
foreach (var entry in _connections.TakeItem())
{
connections.Add(entry.Value);
}
_connections.Release();
// dispose of each connection
foreach (var connection in connections)
{
connection.Dispose();
}
// dispose of the listenning socket
AsyncSocket.Dispose();
_socket.Dispose();
} catch (Exception ex) {
Log.Error("Exception disposing of UDP server connections.", ex);
}
}
/// <summary>
/// Add a new prototype.
/// </summary>
internal void Add(JsPrototype prototype)
{
if (!Prototypes.Contains(prototype))
{
Prototypes.Add(prototype);
}
}
//-------------------------------------------//
/// <summary>
/// Initialize an element rule with a tag to parse and parameters to return.
/// </summary>
public ParseLine(ExtractLine extract)
{
_extract = extract;
_line = new char[_extract.CharBuffer];
_reqParsersSet = extract.ReqExtracts != null;
if (_reqParsersSet)
{
_reqParsers = new ArrayRig <Parse>();
foreach (Extract req in extract.ReqExtracts)
{
_reqParsers.Add(req.GetParser());
}
}
_subParsersSet = extract.SubExtracts != null;
if (_subParsersSet)
{
_subParsers = new ArrayRig <Parse>();
foreach (Extract sub in extract.SubExtracts)
{
_subParsers.Add(sub.GetParser());
}
}
}
//----------------------------------//
//----------------------------------//
internal JsMethod(JsClass jsClass, MethodInfo method)
{
Parameters = new Dictionary <string, Js>();
Commands = new ArrayRig <JsCommand>();
// does the method return a string?
if (method.ReturnType != typeof(string))
{
throw new InvalidOperationException("JsMethod '" + method.Name + "' doesn't return a string.");
}
// iterate the parameters
foreach (var parameter in method.GetParameters())
{
// ensure each parameter is a Js type
if (!Js.IsAncestor(parameter.ParameterType))
{
throw new InvalidOperationException("Parameter '" + parameter.Name + "' of method '" + method.Name + "' in class '" +
method.DeclaringType.Name + "' doesn't inherit from Js.");
}
// add the parameter
Parameters.Add(parameter.Name, parameter.HasDefaultValue ? (Js)parameter.DefaultValue : null);
}
// add the string returned from the method as the javascript command
Commands.Add(new JsCommandString((string)method.Invoke(jsClass, new object[Parameters.Count])));
}
/// <summary>
/// Add a child style.
/// </summary>
public void Add(Style child)
{
if (_children == null)
{
_children = new ArrayRig <Style>();
}
_children.Add(child);
}
/// <summary>
/// Add a sub extract that must exist within this section for it to be
/// parsed successfully.
/// </summary>
public void AddRequirement(Extract extract)
{
if (ReqExtracts == null)
{
ReqExtracts = new ArrayRig <Extract>();
}
ReqExtracts.Add(extract);
}
/// <summary>
/// Add a sub extract that will be parsed on a successful
/// section.
/// </summary>
public void AddSubExtract(Extract extract)
{
if (SubExtracts == null)
{
SubExtracts = new ArrayRig <Extract>();
}
SubExtracts.Add(extract);
}
/// <summary>
/// Construct a new identity. Optionally the identity will be added to the internal
/// collection.
/// </summary>
public Identity(bool persist)
{
if (persist)
{
_identitiesLock.Take();
_identities.Add(this);
_identitiesLock.Release();
}
}
/// <summary>
/// Add a sub extract to act on the body of the element if it exists.
/// </summary>
public void AddSubExtract(Extract extract)
{
if (!SubExtractSet)
{
SubExtractSet = true;
SubExtract = new ArrayRig <Extract>();
}
SubExtract.Add(extract);
}
/// <summary>
/// Add or Set a search node to the current search branches.
/// </summary>
public void Add(TValue value, ArrayRig <Struct <TKey[], bool> > keySets)
{
var sets = new ArrayRig <Struct <ArrayRig <TKey>, bool> >(keySets.Count);
foreach (var s in keySets)
{
sets.Add(new Struct <ArrayRig <TKey>, bool>(new ArrayRig <TKey>(s.ArgA), s.ArgB));
}
Add(value, sets);
}
/// <summary>
/// Add or Set a search node to the current search branches.
/// </summary>
public void Add(TValue value, params Struct <TKey[], bool>[] keySets)
{
var sets = new ArrayRig <Struct <ArrayRig <TKey>, bool> >(keySets.Length);
foreach (var s in keySets)
{
sets.Add(new Struct <ArrayRig <TKey>, bool>(new ArrayRig <TKey>(s.ArgA), s.ArgB));
}
Add(value, sets);
}
/// <summary>
/// Add the next value at the specified delta time.
/// </summary>
public void Add(double delta, B value)
{
switch (Values.Count)
{
case 0:
Values.Add(value);
Deltas.Add(delta);
break;
case 1:
if (delta > Deltas[0])
{
Values.Add(value);
Deltas.Add(delta);
}
else
{
Values.Insert(value, 0);
Deltas.Insert(delta, 0);
}
break;
default:
int index = Values.Count + 1;
while (--index > 0)
{
if (Deltas[index] < delta)
{
Values.Insert(value, index);
Deltas.Insert(delta, index);
return;
}
if (Deltas[index].Equal(delta))
{
Values[index] = value;
return;
}
}
break;
}
}
/// <summary>
/// Get a copy of the current collection of values in the cache.
/// </summary>
public ArrayRig <TValue> GetValues()
{
ArrayRig <TValue> collection = new ArrayRig <TValue>();
_lock.Take();
foreach (var entry in _lookup)
{
collection.Add(entry.Value.ArgC);
}
_lock.Release();
return(collection);
}
/// <summary>
/// Get the element with a callback.
/// </summary>
public void Get(IAction <Element> onGet)
{
_lock.Take();
_callbacks.Add(onGet);
if (_processing)
{
_lock.Release();
return;
}
_processing = true;
// check if the link has or should be updated
if (_element == null)
{
if (_path == null)
{
ManagerUpdate.Control.AddSingle(OnRetrieved, _getElement.Run());
}
else
{
new ElementParser(_path, Act.New(OnParsed, (ElementParser)null)).Run();
}
}
else
{
if (_nextUpdate < Time.Milliseconds)
{
if (_path == null)
{
ManagerUpdate.Control.AddSingle(OnRetrieved, _getElement.Run());
}
else
{
new ElementParser(_path, Act.New(OnParsed, (ElementParser)null)).Run();
}
}
else
{
_processing = false;
foreach (var callback in _callbacks)
{
callback.ArgA = _element.Clone();
ManagerUpdate.Control.AddSingle(callback);
}
_callbacks.Clear();
}
}
_lock.Release();
}
/// <summary>
/// Add an old url that has been parsed.
/// </summary>
public void AddOld(Url url)
{
_lock.Take();
_oldUrls.Add(url);
_changed = true;
if (_oldUrls.Count + _newUrls.Count == MaxUrls && !_committing)
{
_commit.Run();
_committing = true;
}
_lock.Release();
}
//-------------------------------------------//
/// <summary>
/// Update the form with children elements.
/// </summary>
protected void Update()
{
_update = false;
_forms.Clear();
_input.Clear();
// iterate the elements
HashSet <Element> hashSet = new HashSet <Element>(_elements.TakeItem());
_elements.Release();
foreach (var element in hashSet)
{
if (element.Tag == Tag.Input)
{
Element parent = element.Parent;
while (parent != null && parent != this && parent.Tag != Tag.Form)
{
parent = parent.Parent;
}
if (parent == this)
{
var input = element as ElementInput;
if (input == null || input["name"] == null)
{
continue;
}
if (!_input.ContainsKey(input["name"]))
{
_input.Add(input["name"], input);
}
}
}
else if (element.Tag == Tag.Form)
{
Element parent = element.Parent;
while (parent != null && parent != this && parent.Tag != Tag.Form)
{
parent = parent.Parent;
}
if (parent == this)
{
var form = element as ElementForm;
if (form != null && !_forms.Contains(form))
{
_forms.Add(form);
}
}
}
}
}
/// <summary>
/// Split a path into its components.
/// </summary>
public static ArrayRig <string> Split(string path)
{
ArrayRig <string> split;
if (path.Contains(Chars.ForwardSlash))
{
split = new ArrayRig <string>(path.Split(Chars.ForwardSlash));
for (int i = split.Count - 1; i >= 0; --i)
{
if (string.IsNullOrEmpty(split[i]))
{
split.Remove(i);
if (i > 0)
{
string part = split[i - 1];
if (part.Length > 1 && part[part.Length - 1] == Chars.Colon)
{
split[i - 1] = part + Chars.ForwardSlash;
}
}
}
}
}
else if (path.Contains(Chars.BackSlash))
{
split = new ArrayRig <string>(path.Split(Chars.BackSlash));
for (int i = split.Count - 1; i >= 0; --i)
{
if (string.IsNullOrEmpty(split[i]))
{
split.Remove(i);
if (i > 0)
{
string part = split[i - 1];
if (part.Length > 1 && part[part.Length - 1] == Chars.Colon)
{
split[i - 1] = part + Chars.BackSlash;
}
}
}
}
}
else
{
split = new ArrayRig <string>();
split.Add(path);
}
return(split);
}
