/// <summary>
/// Dispose of the blob stream.
/// </summary>
protected override void Dispose(bool disposing)
{
if (!disposing)
{
return;
}
_lock.Take();
FlushInternal();
if (_sections != null)
{
// dispose of the sections collection
for (int i = _sections.Count - 1; i >= 0; --i)
{
if (_sections[i] == null)
{
continue;
}
_sections[i].Bytes = null;
}
_sections.Dispose();
_sections = null;
}
_lock.Release();
}
/// <summary>
/// Dispose of this Extract instance.
/// </summary>
public override void Dispose()
{
if (SubExtractSet)
{
SubExtract.Dispose();
}
}
/// <summary>
/// Manually submit all unsubmitted changes to rows.
/// </summary>
public void SubmitChanges()
{
// ensure initialization
if (_initialize)
{
Initialize();
}
// if no updated collections - skip
if (_currentCollections.Count == 0)
{
return;
}
_lock.Take();
// copy the updated collections
ArrayRig <RowCollection> collections = _currentCollections;
_currentCollections = new ArrayRig <RowCollection>(collections.Count);
_lock.Release();
// iterate all updated collections
foreach (RowCollection collection in collections)
{
// run an update for the collection
Update(collection, true);
}
collections.Dispose();
}
/// <summary>
/// Dispose of this Extract instance.
/// </summary>
public override void Dispose()
{
if (SubExtractSet)
{
SubExtract.Dispose();
}
ProtocolSearch.Dispose();
}
/// <summary>
/// Dispose of this Table instance.
/// </summary>
public virtual void Dispose()
{
if (!_initialize)
{
_keyspace.RemoveTable(this);
_keyspace = null;
Columns.Dispose();
}
}
/// <summary>
/// Dispose of this Extract instance.
/// </summary>
public override void Dispose()
{
foreach (Extract extract in
SubExtracts)
{
extract.Dispose();
}
foreach (Extract extract in ReqExtracts)
{
extract.Dispose();
}
SubExtracts.Dispose();
ReqExtracts.Dispose();
}
/// <summary>
/// Disposes of the host, committing any DB changes.
/// </summary>
public void Dispose()
{
if (!Disposed)
{
Disposed = true;
// remove the host from url control
_session.OnDisposeHost(this);
}
_lock.Take();
if (_changed && !_committing)
{
_committing = true;
_lock.Release();
_commit.Run();
return;
}
_newUrls.Dispose();
_oldUrls.Dispose();
_newUrls = null;
_oldUrls = null;
_commit = null;
_lock.Release();
}
/// <summary>
/// Parse the specified characters and test against the scheme and it's children. Returns if it's
/// requirements are satisfied.
/// </summary>
public unsafe override bool Next(char[] characters, int start, int end)
{
// if the result isn't going anywhere - skip
if (!_extract.OnSectionSet && _extract.SubExtracts.Count == 0)
{
// no result method or sub extracts
return(false);
}
// have the results of this parser been satisfied?
if (_runSubParsers)
{
// yes, pass any characters to the sub-parsers
foreach (Parse parser in _activeSubParsers)
{
if (!parser.Next(characters, start, end))
{
_activeSubParsers.RemoveQuick(parser);
_runSubParsers = _activeSubParsers.Count > 0;
}
}
}
// the ultimate result of this parse is whether a result is achieved and
// passed to a return method or a sub extract method is similarly successful
bool result = false;
// the last index to be copied into the current section
int lastIndex = start;
// are there prefixes and suffixes?
if (_prefixesSet && _suffixesSet)
{
// yes, both prefixes and suffixes
// set the current index within the block
Index = lastIndex - 1;
// loop until the block is complete
while (Index <= end)
{
// are there prefixes or has a match been found?
if (Active)
{
// iterate characters in current block
while (++Index < end)
{
char character = characters[Index];
// if a suffix has been found
if (_suffixSearch.Next(character))
{
// if current section count + current block is greater than max allowed
if (_currentSection.Count + Index - lastIndex > _extract.MaxCharacters)
{
// overflow - reset section stack
Reset();
// decrement the index to start searching for the prefix
--Index;
// revert to prefix search
break;
}
++Index;
// is the current section able to contain the next block of characters?
if (_currentSection.Capacity - _currentSection.Count < Index - lastIndex)
{
// no, resize
_currentSection.SetCapacity(_currentSection.Capacity + Index - lastIndex);
}
// append the block up to the current index
fixed(void *dst = &_currentSection.Array[_currentSection.Count])
{
Marshal.Copy(characters, lastIndex, (IntPtr)dst, Index - lastIndex);
}
// update the current section count
_currentSection.Count += Index - lastIndex;
// update the last index
--Index;
lastIndex = Index;
// if there are nested requirements
if (_reqParsersSet)
{
// run required nested extracts
foreach (Parse reqParser in _reqParsers)
{
// if required extract wasn't satisfied then not active
Active &= reqParser.Next(_currentSection.Array, 0, _currentSection.Count);
}
}
// if any requirements were fulfilled
if (Active)
{
// if there are sub parsers
if (_subParsersSet)
{
// begin running sub parsers
for (int i = _subParsers.Count - 1; i >= 0; --i)
{
if (_subParsers[i].Next(_currentSection.Array, 0, _currentSection.Count))
{
_activeSubParsers.Add(_subParsers[i]);
}
else
{
_activeSubParsers.RemoveQuick(_subParsers[i]);
}
}
_runSubParsers = _activeSubParsers.Count != 0;
}
// if section callback is set
if (_extract.OnSectionSet)
{
// run complete section callback
_extract.OnSection.Take();
_extract.OnSection.Item.ArgA = _currentSection.ToArray();
_extract.OnSection.Item.Run();
_extract.OnSection.Release();
result = true;
}
}
// pop the last section and check max length
if (Sections.Count > 1 && Sections[Sections.Count - 1].Count + _currentSection.Count - 1 < _extract.MaxCharacters)
{
// get the next session
Sections.Remove(Sections.Count - 1);
ArrayRig <char> nextSection = Sections[Sections.Count - 1];
// will the next section contain the current sections characters?
if (nextSection.Capacity - nextSection.Count < _currentSection.Count)
{
// no, resize
nextSection.SetCapacity(nextSection.Capacity + _currentSection.Count);
}
// append the last section
fixed(void *dst = &nextSection.Array[0])
{
Marshal.Copy(_currentSection.Array, 0, (IntPtr)dst, _currentSection.Count);
}
// update the next section count
nextSection.Count += _currentSection.Count;
// set current section
_currentSection = nextSection;
// flag for suffix search
Active = true;
}
else
{
// reset the section stack
Reset();
// decrement index
--Index;
// move back to prefix search
break;
}
}
// has the prefix been found?
if (_prefixSearch.Next(character))
{
// nested prefix has been found
// check max length of current section
if (_currentSection.Count + Index - lastIndex > _extract.MaxCharacters)
{
// overflow - reset the sections stack
Reset();
}
else
{
// add the current section to the stack
Sections.Add(_currentSection);
// initialize new nested section
_currentSection = new ArrayRig <char>();
}
// get the prefix char array
char[] prefix = _prefixSearch.Values[0].ToCharArray();
// if the current section won't contain the prefix
if (_currentSection.Capacity - _currentSection.Count < prefix.Length)
{
// resize
_currentSection.SetCapacity(_currentSection.Capacity + prefix.Length);
}
// copy the prefix charcters to the current section
fixed(void *dst = &_currentSection.Array[_currentSection.Count])
{
Marshal.Copy(prefix, 0, (IntPtr)dst, prefix.Length);
}
// update the section count
_currentSection.Count += prefix.Length;
}
}
// if block is finished
if (Index == end - 1)
{
// check max length
if (_currentSection.Count + Index - lastIndex > _extract.MaxCharacters)
{
// overflow - reset
Reset();
}
else
{
// if the current section won't contain the block
if (_currentSection.Capacity - _currentSection.Count < Index - lastIndex)
{
// resize
_currentSection.SetCapacity(_currentSection.Capacity + Index - lastIndex);
}
// copy the block charcters to the current section
fixed(void *dst = &_currentSection.Array[_currentSection.Count])
{
Marshal.Copy(characters, lastIndex, (IntPtr)dst, Index - lastIndex);
}
// update the section count
_currentSection.Count += Index - lastIndex;
lastIndex = Index;
}
// return the result of the current block
return(result);
}
}
// search for a prefix
// iterate chacters in current block
while (++Index < end)
{
char character = characters[Index];
// if a prefix has been found
if (_prefixSearch.Next(character))
{
// get the prefix char array
char[] prefix = _prefixSearch.Values[0].ToCharArray();
// is the current section collection large enough for the prefix?
if (_currentSection.Capacity < prefix.Length)
{
// no, resize
_currentSection.SetCapacity(_currentSection.Capacity + prefix.Length);
}
// copy the prefix charcters to the current section
fixed(void *dst = &_currentSection.Array[_currentSection.Count])
{
Marshal.Copy(prefix, 0, (IntPtr)dst, prefix.Length);
}
// update the section count
_currentSection.Count += prefix.Length;
// update the last index
lastIndex = Index + 1;
// catch up the suffix search (for partially overlapping prefixes and suffixes)
foreach (char c in prefix)
{
_suffixSearch.Next(c);
}
// set to look for suffix
Active = true;
// go on to find a suffix
break;
}
}
// if block is finished
if (!Active)
{
return(result);
}
}
}
else if (_prefixesSet)
{
// no, prefixes only
// iterate chacters in current block
while (++Index < end)
{
char character = characters[Index];
// if a prefix has been found
if (_prefixSearch.Next(character))
{
// get the prefix
char[] prefix = _prefixSearch.Values[0].ToCharArray();
// is the parser already active?
if (Active)
{
// yes, a nested prefix has been found
// create a new section
var newSection = new ArrayRig <char>(_extract.MaxCharacters < prefix.Length ? prefix.Length : _extract.MaxCharacters);
// copy the prefix charcters to the new section
fixed(void *dst = &newSection.Array[0])
{
Marshal.Copy(prefix, 0, (IntPtr)dst, prefix.Length);
}
// update the new section count
newSection.Count += prefix.Length;
/////// copy the current block to the current sections
// is the current section going to be full?
while (_currentSection.Count + Index - lastIndex >= _extract.MaxCharacters)
{
/////// yes, complete the current section
// resize the current section if needed
if (_extract.MaxCharacters > _currentSection.Capacity)
{
_currentSection.SetCapacity(_extract.MaxCharacters);
}
// are there null characters in the current section?
if (_extract.MaxCharacters > _currentSection.Count)
{
// yes, append the block to the current section
fixed(void *dst = &_currentSection.Array[_currentSection.Count])
{
Marshal.Copy(characters, lastIndex, (IntPtr)dst, _extract.MaxCharacters - _currentSection.Count);
}
// update the current section count
_currentSection.Count = _extract.MaxCharacters;
}
// are there requirements?
if (_reqParsersSet)
{
// yes, run the required parsers
foreach (Parse parser in _reqParsers)
{
result |= parser.Next(_currentSection.Array, 0, _currentSection.Count);
}
}
else
{
// no, the parse was successful
result = true;
}
// have the requirements been fulfilled?
if (result)
{
// are there sub parsers?
if (_subParsersSet)
{
// yes, begin running sub parsers
for (int i = _subParsers.Count - 1; i >= 0; --i)
{
if (_subParsers[i].Next(_currentSection.Array, 0, _currentSection.Count))
{
_activeSubParsers.Add(_subParsers[i]);
}
else
{
_activeSubParsers.RemoveQuick(_subParsers[i]);
}
}
_runSubParsers = _activeSubParsers.Count != 0;
}
// is the section callback set?
if (_extract.OnSectionSet)
{
// yes, run complete section callback
_extract.OnSection.Take();
_extract.OnSection.Item.ArgA = _currentSection.ToArray();
_extract.OnSection.Item.Run();
_extract.OnSection.Release();
result = true;
}
}
// are there more sections?
if (Sections.Count == 0)
{
// no, exit the iteration
_currentSection.Reset();
break;
}
// yes, get the next section
_currentSection.Dispose();
_currentSection = Sections[0];
Sections.Remove(0);
}
// are there any partial sections apart from the new section?
if (_currentSection.Count != 0)
{
////// yes, copy the current block to all other sections that will not be filled
// resize the current section if needed
if (_currentSection.Count + Index - lastIndex > _currentSection.Capacity)
{
_currentSection.SetCapacity(_currentSection.Count + Index - lastIndex);
}
// append the block to the current section
fixed(void *dst = &_currentSection.Array[_currentSection.Count])
{
Marshal.Copy(characters, lastIndex, (IntPtr)dst, Index - lastIndex);
}
// update the section count
_currentSection.Count += Index - lastIndex;
// iterate all sections
foreach (ArrayRig <char> section in Sections)
{
// append the block to each section
fixed(void *dst = §ion.Array[section.Count])
{
Marshal.Copy(characters, lastIndex, (IntPtr)dst, Index - lastIndex);
}
// update the section count
section.Count += Index - lastIndex;
}
// add the new section
Sections.Add(newSection);
}
else
{
// no, the new section is the only section left
_currentSection = newSection;
}
// update the last index
lastIndex = Index;
}
else
{
// no, start the first section
// will the section contain the prefix?
if (prefix.Length > _currentSection.Capacity)
{
// nope, resize
_currentSection.SetCapacity(prefix.Length);
}
// copy the characters to the current section
fixed(void *dst = &_currentSection.Array[0])
{
Marshal.Copy(prefix, 0, (IntPtr)dst, prefix.Length);
}
// update the section count
_currentSection.Count = prefix.Length;
// update the last index
lastIndex = Index;
}
// set parser active
Active = true;
}
}
////// copy the remaining characters to the current sections if any
// is there a prefix and is the current section going to be filled by the current block?
while (Active && _currentSection.Count + Index - lastIndex >= _extract.MaxCharacters)
{
/////// yes, complete the current section
// resize the current section if needed
if (_extract.MaxCharacters > _currentSection.Capacity)
{
_currentSection.SetCapacity(_extract.MaxCharacters);
}
// is there space in the current section?
if (_extract.MaxCharacters > _currentSection.Count)
{
// yes, fill the block to the current section
fixed(void *dst = &_currentSection.Array[_currentSection.Count])
{
Marshal.Copy(characters, lastIndex, (IntPtr)dst, _extract.MaxCharacters - _currentSection.Count);
}
// update the current section count
_currentSection.Count = _extract.MaxCharacters;
}
// are there requirements?
if (_reqParsersSet)
{
// yes, run the required parsers
foreach (Parse parser in _reqParsers)
{
result |= parser.Next(_currentSection.Array, 0, _currentSection.Count);
}
}
else
{
// no, the parse was successful
result = true;
}
// have the requirements been fulfilled?
if (result)
{
// are there sub parsers?
if (_subParsersSet)
{
// yes, begin running sub parsers
for (int i = _subParsers.Count - 1; i >= 0; --i)
{
if (_subParsers[i].Next(_currentSection.Array, 0, _currentSection.Count))
{
_activeSubParsers.Add(_subParsers[i]);
}
else
{
_activeSubParsers.RemoveQuick(_subParsers[i]);
}
}
_runSubParsers = _activeSubParsers.Count != 0;
}
// is the section callback set?
if (_extract.OnSectionSet)
{
// yes, run complete section callback
_extract.OnSection.Take();
_extract.OnSection.Item.ArgA = _currentSection.ToArray();
_extract.OnSection.Item.Run();
_extract.OnSection.Release();
result = true;
}
}
// are there more sections?
if (Sections.Count == 0)
{
// no, exit the iteration
_currentSection.Reset();
break;
}
// yes, get the next section
_currentSection.Dispose();
_currentSection = Sections[0];
Sections.Remove(0);
}
// are there any partial sections left?
if (_currentSection.Count != 0)
{
////// yes, copy the current block to all other sections thatill not be filled w
// resize the current section if needed
if (_currentSection.Count + Index - lastIndex > _currentSection.Capacity)
{
_currentSection.SetCapacity(_currentSection.Count + Index - lastIndex);
}
// append the block to the current section
fixed(void *dst = &_currentSection.Array[_currentSection.Count])
{
Marshal.Copy(characters, lastIndex, (IntPtr)dst, Index - lastIndex);
}
// update the section count
_currentSection.Count += Index - lastIndex;
// iterate all sections
foreach (ArrayRig <char> section in Sections)
{
// append the block to each section
fixed(void *dst = §ion.Array[section.Count])
{
Marshal.Copy(characters, lastIndex, (IntPtr)dst, Index - lastIndex);
}
// update the section count
section.Count += Index - lastIndex;
}
}
}
else if (_suffixesSet)
{
// no, suffixes only
// iterate characters in current block
while (++Index < end)
{
char character = characters[Index];
// does the current character complete a suffix?
if (_suffixSearch.Next(character))
{
// yes, push current character block
// if current section count + current block is greater than max allowed
if (_currentSection.Count + Index - lastIndex > _extract.MaxCharacters)
{
// overflow - move the current section
// shift characters from the current section
fixed(void *dst = &_currentSection.Array[0])
{
Marshal.Copy(_currentSection.Array, Index - lastIndex, (IntPtr)dst, _currentSection.Count - Index - lastIndex);
}
// set the new count
_currentSection.Count = _currentSection.Count - Index - lastIndex;
}
// resize the current section if needed
if (_currentSection.Count + Index - lastIndex > _currentSection.Capacity)
{
_currentSection.SetCapacity(_currentSection.Count + Index - lastIndex);
}
// append the block up to the current index
fixed(void *dst = &_currentSection.Array[_currentSection.Count])
{
Marshal.Copy(characters, lastIndex, (IntPtr)dst, Index - lastIndex);
}
// update the current section count
_currentSection.Count += Index - lastIndex;
// update the last index
lastIndex = Index;
// are there requirements?
if (_reqParsersSet)
{
// yes, run the required parsers
foreach (Parse parser in _reqParsers)
{
result |= parser.Next(_currentSection.Array, 0, _currentSection.Count);
}
}
else
{
result = true;
}
// have the requirements been fulfilled?
if (result)
{
// are there sub parsers?
if (_subParsersSet)
{
// yes, begin running sub parsers
for (int i = _subParsers.Count - 1; i >= 0; --i)
{
if (_subParsers[i].Next(_currentSection.Array, 0, _currentSection.Count))
{
_activeSubParsers.Add(_subParsers[i]);
}
else
{
_activeSubParsers.RemoveQuick(_subParsers[i]);
}
}
_runSubParsers = _activeSubParsers.Count != 0;
}
// is the section callback set?
if (_extract.OnSectionSet)
{
// yes, run complete section callback
_extract.OnSection.Take();
_extract.OnSection.Item.ArgA = _currentSection.ToArray();
_extract.OnSection.Item.Run();
_extract.OnSection.Release();
result = true;
}
}
}
}
// copy the current character block
// if current section count + current block is greater than max allowed
if (_currentSection.Count + Index - lastIndex > _extract.MaxCharacters)
{
// overflow - move the current section
// shift characters in the current section
fixed(void *dst = &_currentSection.Array[0])
{
Marshal.Copy(_currentSection.Array, Index - lastIndex, (IntPtr)dst, _currentSection.Count - Index - lastIndex);
}
// set the new count
_currentSection.Count = _currentSection.Count - Index - lastIndex;
}
// resize the current section if needed
if (_currentSection.Count + Index - lastIndex > _currentSection.Capacity)
{
_currentSection.SetCapacity(_currentSection.Count + Index - lastIndex);
}
// append the block up to the current index
fixed(void *dst = &_currentSection.Array[_currentSection.Count])
{
Marshal.Copy(characters, lastIndex, (IntPtr)dst, Index - lastIndex);
}
// update the current section count
_currentSection.Count += Index - lastIndex;
}
else
{
// no prefixes or suffixes
// are there requirements?
if (_reqParsersSet)
{
// yes, check requirements
foreach (Parse parser in _reqParsers)
{
result |= parser.Next(characters, start, end);
}
}
else
{
// no, the result is positive
result = true;
}
// is the parser becoming active?
if (result && !Active)
{
// yes, update state
Active = true;
// run sub parsers
if (!_runSubParsers)
{
_runSubParsers = true;
// iterate sub parsers
for (int i = _subParsers.Count - 1; i >= 0; --i)
{
if (_subParsers[i].Next(_currentSection.Array, 0, _currentSection.Count))
{
_activeSubParsers.Add(_subParsers[i]);
}
else
{
_activeSubParsers.RemoveQuick(_subParsers[i]);
}
}
}
}
}
// return the result
return(result);
}
/// <summary>
/// Execute the current collection of statements.
/// The batch lock should be taken when this is called and is released during execution.
/// </summary>
protected RowSet ExecuteBatch(bool takeLock = true)
{
// is the lock to be used? yeah, take it
if (takeLock)
{
_batchLock.Take();
}
// reset the timer
_batchTimer.Reset(BatchInterval);
_batchTimer.Run = false;
// create a new batch statement
BatchStatement batchStatement = new BatchStatement();
batchStatement.SetReadTimeoutMillis(BatchTimeout);
// add all current statements
for (int i = 0; i < _batch.Count; ++i)
{
batchStatement.Add(_batch[i]);
}
// set the batch page size
batchStatement.SetPageSize(_batchPageSize);
// reset the batch
_batch.Reset();
_batchReturnsResults = false;
// copy the collection of callbacks
ArrayRig <IAction> callbacks = new ArrayRig <IAction>(_onExecuted);
_onExecuted.Clear();
// release the batch lock
_batchLock.Release();
RowSet rowSet;
try {
// execute the batch statement
rowSet = _session.Execute(batchStatement);
} catch (Exception ex) {
var builder = StringBuilderCache.Get();
builder.Append("An exception occured executing a batch statement '");
var obj = typeof(BatchStatement).GetProperty("Queries",
System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.DeclaredOnly | System.Reflection.BindingFlags.NonPublic)
.GetValue(batchStatement);
if (obj == null)
{
builder.Append("Unknown");
}
else
{
var statements = (List <Statement>)obj;
bool first = true;
foreach (var statement in statements)
{
if (statement.OutgoingPayload == null)
{
continue;
}
foreach (var query in statement.OutgoingPayload.Keys)
{
if (first)
{
first = false;
}
else
{
builder.Append(", ");
}
builder.Append(query);
}
}
}
builder.Append("'. ");
Log.Error(builder.ToString(), ex);
return(null);
}
// run callback with results
if (_onExecutedResults != null)
{
_onExecutedResults.ArgA = rowSet;
_onExecutedResults.Run();
_onExecutedResults = null;
}
// run callbacks
foreach (IAction callback in callbacks)
{
callback.Run();
}
callbacks.Dispose();
return(rowSet);
}
//----------------------------------//
/// <summary>
/// Update the structure of the element table.
/// </summary>
protected void Update()
{
_update = false;
_rows.Dispose();
_rows = new ArrayRig <Row>();
// update the row elements
foreach (var child in Children)
{
if (child.Tag == Tag.TableRow)
{
var row = new Row(this);
row.RowElement = child;
if (child.Children == null)
{
continue;
}
foreach (var cell in child.Children)
{
if (cell.Tag == Tag.TableCell || cell.Tag == Tag.TableHeadCell)
{
row.Cells.Add(cell);
if (row.Cells.Count > _columnCount)
{
_columnCount = row.Cells.Count;
}
}
}
if (row.Cells.Count > 0 &&
row.Cells[0] != null &&
row.Cells[0].Tag == Tag.TableHeadCell)
{
Header = row;
}
else
{
_rows.Add(row);
}
}
else if (child.Tag == Tag.ColumnGroup)
{
var row = new Row(this);
row.RowElement = child;
if (child.Children == null)
{
continue;
}
foreach (var cell in child.Children)
{
if (cell.Tag == Tag.Column)
{
row.Cells.Add(cell);
if (row.Cells.Count > _columnCount)
{
_columnCount = row.Cells.Count;
}
}
}
ColumnGroup = row;
}
}
}
/// <summary>
/// Load all referenced assemblies that could include a Singleton.
/// </summary>
private static void LoadAssemblies()
{
// load assemblies that reference the Efz.Common assembly ignoring the .Net assemblies
ArrayRig <System.Reflection.Assembly> loadedAssemblies = new ArrayRig <System.Reflection.Assembly>();
loadedAssemblies.Add(System.Reflection.Assembly.GetCallingAssembly());
ArrayRig <System.Reflection.Assembly> nextAssemblies = new ArrayRig <System.Reflection.Assembly>(AppDomain.CurrentDomain.GetAssemblies());
// while there are more assemblies to load
while (nextAssemblies.Count != 0)
{
// iterate the next assemblies to load
for (int i = nextAssemblies.Count - 1; i >= 0; --i)
{
var assembly = nextAssemblies[i];
// remove the assembly
nextAssemblies.Remove(i);
// is it a system assembly?
if ((assembly.FullName[6] == Chars.Stop ||
assembly.FullName[6] == Chars.Comma) &&
assembly.FullName.StartsWith("System", StringComparison.Ordinal) ||
assembly.FullName.StartsWith("mscorlib", StringComparison.Ordinal))
{
// yes, skip loading referenced assemblies
continue;
}
// get the referenced assemblies
var referenced = assembly.GetReferencedAssemblies();
// iterate the referenced assemblies
foreach (var reference in referenced)
{
// is the referenced assembly a system assembly?
if (reference.Name.StartsWith("System", StringComparison.Ordinal) || reference.Name.Equals("mscorlib"))
{
// yes, skip it
continue;
}
// does the current loaded assemblies contain the referenced assembly?
bool found = false;
foreach (var a in loadedAssemblies)
{
if (a.FullName == reference.FullName)
{
found = true;
break;
}
}
// was the assembly already loaded? yes, skip
if (found)
{
continue;
}
// ensure each reference is loaded
System.Reflection.Assembly next;
try {
next = AppDomain.CurrentDomain.Load(reference);
} catch {
// gracefully ignore
continue;
}
loadedAssemblies.Add(next);
nextAssemblies.Add(next);
}
}
}
loadedAssemblies.Dispose();
nextAssemblies.Dispose();
}
/// <summary>
/// Main thread method.
/// </summary>
public void Run()
{
_running = true;
Interlocked.Increment(ref _handleCount);
while (_running)
{
//#if !DEBUG
try {
//#endif
// main thread loop
while (_running)
{
// iterate needles and get the next task
_nextIndex = Needles.Count;
while (--_nextIndex >= 0)
{
// is there a waiting task?
if (Needles[_nextIndex].Next(out _next))
{
// yes, has the context been changed?
if (_index != _nextIndex)
{
// yes, update
_index = _nextIndex;
// set the synchronization context to allow async operations to be joined
// back to the same threads assigned to the needle
SynchronizationContext.SetSynchronizationContext(Needles[_index].Context);
}
//Log.D("Running : "+Needles[_nextIndex].Name+" === " + _next);
// try update the thread-local time values
Time.Update();
// run the task
_next.Run();
_iteration = 0;
_wait = false;
break;
}
}
if (_wait)
{
// determine the thread action based on the current iteration count
++_iteration;
Time.Update();
if (_iteration % 5 == 0)
{
Thread.Sleep(1);
}
else if (_iteration > HandleCount)
{
_iteration = 0;
Thread.Sleep(HandleCount);
}
else
{
Thread.Sleep(0);
}
}
else
{
_wait = true;
}
}
//#if !DEBUG
} catch (Exception ex) {
Log.Error("Unhandled exception", ex);
if (!_wait)
{
_next.Stop();
_wait = true;
}
continue;
}
//#endif
}
// remove from the handles collection
Handles.TakeItem().Remove(this);
Handles.Release();
// remove this from the handles map
_handleMap.TakeItem().Remove(Id);
_handleMap.Release();
// clear this handles needle collection
Needles.Dispose();
}
/// <summary>
/// Try add the specified bytes to the request.
/// Returns the number of bytes read from the buffer.
/// </summary>
internal unsafe int TryAdd(byte[] buffer, int index, int count)
{
// is the request complete?
if (_complete)
{
return(0);
}
// has the header been completely read?
if (_section == Section.Body)
{
// does the current buffer contain the required bytes?
if (_contentLength <= count)
{
// yes, write the remaining content length to the stream
_stream.Write(buffer, index, _contentLength);
count = _contentLength;
_contentLength = 0;
// the request is complete
_complete = true;
// move back to the start of the content body - this flushes the byte stream
_stream.Position = _bodyIndex;
// TODO : Auto decompression
return(count);
}
// no, write the buffer
_stream.Write(buffer, index, count);
// decrement the remaining content length
_contentLength -= count;
return(count);
}
// persist the starting index of the stream
long startIndex = _stream.WriteEnd;
// write the buffer to the request
_stream.Write(buffer, index, count);
// return to the start of the buffer
_stream.Position = startIndex;
char c;
// while characters can be read from the stream
while ((c = _stream.ReadChar()) != Chars.Null)
{
// should the character be skipped? yes, continue reading
if (c == Chars.CarriageReturn)
{
continue;
}
// determine the state of the request method
switch (_section)
{
case Section.Method:
// read until a space is encountered
if (c == Chars.Space)
{
// try determine the type of web request
if (_chars.EndsWith(Chars.G, Chars.E, Chars.T))
{
Method = HttpMethod.Get;
}
else if (_chars.EndsWith(Chars.P, Chars.O, Chars.S, Chars.T))
{
Method = HttpMethod.Post;
}
else if (_chars.EndsWith(Chars.P, Chars.U, Chars.T, Chars.Space))
{
Method = HttpMethod.Put;
}
else if (_chars.EndsWith(Chars.D, Chars.E, Chars.L, Chars.E, Chars.T, Chars.E))
{
Method = HttpMethod.Delete;
}
else if (_chars.EndsWith(Chars.U, Chars.P, Chars.D, Chars.A, Chars.T, Chars.E))
{
Method = HttpMethod.Update;
}
_section = Section.Path;
_chars.Reset();
}
else
{
// add the current character to the collection
_chars.Add(c);
}
break;
case Section.Path:
// yes, does the current character equal a new line?
if (c == Chars.NewLine)
{
// yes, derive the request path and the http version
index = _chars.Count;
bool versionFound = false;
// while the indices haven't been explored
while (--index >= 0)
{
// does the current character equal a space?
if (_chars[index] == Chars.Space)
{
// no, derive the request version
Headers[HttpRequestHeader.HttpVersion] = new string(_chars.Array, index + 1, _chars.Count - index - 1);
versionFound = true;
break;
}
}
// yes, has the version been derived? yes, derive the request path
if (versionFound)
{
RequestPath = new string(_chars.Array, 0, index);
}
else
{
RequestPath = "/";
}
_section = Section.HeaderKey;
_chars.Reset();
}
else
{
// add the current character to the collection
_chars.Add(c);
}
break;
case Section.HeaderKey:
// is the current character a separator between header names and values?
if (c == Chars.Colon)
{
// get the name of the chracter header
_headerKey = new string(_chars.Array, 0, _chars.Count);
// read the header value
_section = Section.HeaderValue;
// clear the characters
_chars.Reset();
}
else if (c == Chars.NewLine && _chars.Count == 0)
{
// yes, the request header has been completed
_chars.Dispose();
// determine whether to continue the request
switch (Method)
{
case HttpMethod.Put:
case HttpMethod.Post:
case HttpMethod.Update:
// set the start of the body index
_bodyIndex = (int)_stream.Position;
// get the content length - was it able to be parsed?
if (!int.TryParse(Headers[HttpRequestHeader.ContentLength], out _contentLength))
{
// the content length wasn't able to be parsed
Log.Warning("Invalid content length parameter.");
// set the content length to '0'.
_contentLength = 0;
_complete = true;
return(count);
}
// the request contains a body
// should this request claim the remaining bytes written to the stream?
if (_stream.WriteEnd - _stream.Position >= _contentLength)
{
// no, get the excess number of bytes from the request
count = (int)(_stream.WriteEnd - startIndex);
_contentLength = 0;
_complete = true;
}
else
{
// decrement the content length
_contentLength -= (int)(_stream.WriteEnd - _stream.Position);
// flag the header as complete
_section = Section.Body;
// move the stream to the end of the written section
_stream.Position = _stream.WriteEnd;
}
// return the number of bytes that contribute to the request
return(count);
default:
// the request doesn't contain a body, end reading the request
_complete = true;
// return the number of bytes read from the buffer
return((int)(_stream.Position - startIndex));
}
}
else
{
// add the current character to the collection
_chars.Add(c);
}
break;
case Section.HeaderValue:
// is the current character a new line?
if (c == Chars.NewLine)
{
// add the header to the collection
Headers[_headerKey] = new string(_chars.Array, 0, _chars.Count);
_chars.Reset();
_section = Section.HeaderKey;
}
else if (c != Chars.Space || _chars.Count != 0)
{
// add the current character to the collection
_chars.Add(c);
}
break;
}
}
// return the number of bytes read from the buffer
return(count);
}
