/// <summary>
/// Parse the text that contains the iCalendar representation.
/// Create an instance of VCALENDAR object with all the calendar components
/// and properties.
/// </summary>
/// <param name="calendarString">The calendar representation to be parsed.</param>
/// <returns>The VCaledar instance.</returns>
public static VCalendar iCalendarParser(string calendarString)
{
//used to create instance of calendar component objects
var calCompFactory = new CalendarComponentFactory();
//used to create instance of component property objects
var compPropFactory = new ComponentPropertyFactory();
var objStack = new Stack <ICalendarObject>();
var lines = CalendarReader(calendarString);
foreach (var line in lines)
{
List <PropertyParameter> parameters;
string lineValue;
string firstLineString;
if (!LineParser(line, out firstLineString, out parameters, out lineValue))
{
continue;
}
switch (firstLineString)
{
case "BEGIN":
///if the component is vcalendar then create is
/// if not then call the factory to get the object
/// that name.
var calComponent = lineValue == "VCALENDAR" ? new VCalendar() : calCompFactory.CreateIntance(lineValue);
objStack.Push(calComponent);
continue;
case "END":
var endedObject = objStack.Pop();
//if the last object in the stack is an VCalendar then
//is the end of the parsing
var vCalendar = endedObject as VCalendar;
if (vCalendar != null)
{
return(vCalendar);
}
///if the object is not a VCalendar means
/// that should be added to his father that
/// is the first in the stack
((IAggregator)objStack.Peek()).AddItem(endedObject);
continue;
}
///creates an instance of a property
var compProperty = compPropFactory.CreateIntance(firstLineString, firstLineString);
var topObj = objStack.Peek();
//set the value and params in the compProperty via the Deserializer of the property
((IAggregator)topObj).AddItem(((IDeserialize)compProperty).Deserialize(lineValue, parameters));
}
throw new ArgumentException("The calendar file MUST contain at least an element.");
}
/// <summary>
/// Parse the string that contain a calendar defines
/// under the protocol RFC 5545. Builds an instance
/// of VCalendar with its components, properties..
/// </summary>
/// <param name="calendarString">The calendar to parse.</param>
/// <returns>An instance of VCalendar.</returns>
public static VCalendar Parse(string calendarString)
{
var calCompFactory = new CalendarComponentFactory();
var compPropFactory = new ComponentPropertyFactory();
var name = "";
var value = "";
var parameters = new List <PropertyParameter>();
ICalendarObject calComponent = null;
ICalendarObject compProperty = null;
var objStack = new Stack <ICalendarObject>();
Type type = null;
var lines = Parser.CalendarReader(calendarString);
foreach (var line in lines)
{
if (!Parser.CalendarParser(line, out name, out parameters, out value))
{
continue;
}
switch (name)
{
case "BEGIN":
///if the component is vcalendar then create is
/// if not then call the factory to get the object
/// that name.
calComponent = value == "VCALENDAR" ? new VCalendar() : calCompFactory.CreateIntance(value);
objStack.Push(calComponent);
continue;
case "END":
var endedObject = objStack.Pop();
//if the last object in the stack is an VCalendar then
//is the end of the parsing
var vCalendar = endedObject as VCalendar;
if (vCalendar != null)
{
return(vCalendar);
}
///if the object is not a VCalendar means
/// that should be added to his father that
/// is the first in the stack
((IAggregator)objStack.Peek()).AddItem(endedObject);
continue;
}
///creates an instance of a property
compProperty = compPropFactory.CreateIntance(name, name);
var topObj = objStack.Peek();
((IAggregator)topObj).AddItem(((IDeserialize)compProperty).Deserialize(value, parameters));
}
throw new ArgumentException("The calendar file MUST contain at least an element.");
}
public VCalendar(string calendarString)
{
var calCompFactory = new CalendarComponentFactory();
var compPropFactory = new ComponentPropertyFactory();
var assemblyNameCalendar = "ICalendar.Calendar.";
var name = "";
var value = "";
var parameters = new List <PropertyParameter>();
ICalendarObject calComponent = null;
ICalendarObject compProperty = null;
var objStack = new Stack <ICalendarObject>();
Type type = null;
var lines = Parser.CalendarReader(calendarString);
foreach (var line in lines)
{
if (!Parser.LineParser(line, out name, out parameters, out value))
{
continue;
}
//TODO: Do the necessary with the objects that dont belong to CompProperties
if (name == "BEGIN")
{
var className = value;
className = className.Substring(0, 2) + className.Substring(2).ToLower();
if (value == "VCALENDAR")
{
type = Type.GetType(assemblyNameCalendar + className);
calComponent = Activator.CreateInstance(type) as ICalendarObject;
}
else
{
calComponent = calCompFactory.CreateIntance(className);
}
objStack.Push(calComponent);
continue;
}
if (name == "END")
{
var endedObject = objStack.Pop();
//if the last object in the stack is an VCalendar then
//is the end of the parsing
if (endedObject is VCalendar)
{
var calendar = endedObject as VCalendar;
Properties = calendar.Properties;
CalendarComponents = calendar.CalendarComponents;
return;
}
((IAggregator)objStack.Peek()).AddItem(endedObject);
continue;
}
var propSysName = name;
if (name.Contains("-"))
{
propSysName = name.Replace("-", "_");
}
propSysName = propSysName.Substring(0, 1) + propSysName.Substring(1).ToLower();
compProperty = compPropFactory.CreateIntance(propSysName, name);
if (compProperty == null)
{
continue;
}
var topObj = objStack.Peek();
((IAggregator)topObj).AddItem(((IDeserialize)compProperty).Deserialize(value, parameters));
}
throw new ArgumentException("The calendar file MUST contain at least an element.");
}
