public new void Add(IStructure dta_struct)
{
string new_index_hash = dta_struct.GetIndex().DwarfHashCode;
if (dta_struct is Record)
{
items_dict.TryAdd(new_index_hash, dta_struct);
Modified = true;
}
}
public bool TryRemove(IStructure data)
{
if (items_dict.ContainsKey(data.GetIndex().DwarfHashCode))
{
IStructure dummy = null;
return items_dict.TryRemove(data.GetIndex().DwarfHashCode, out dummy);
}
return false;
}
/// <summary>
/// Saving an existant item to a chunk file in multithread mode
/// </summary>
/// <param name="filepath">path to a file</param>
/// <param name="ds">datastructure</param>
public static void SaveItemContents( string filepath, IStructure ds )
{
var elem= new InnerChunkElement();
if ( ds != null ) {
var sw_read = new StreamReader( File.Open( filepath, FileMode.Open ) );
InnerChunkElement icm = null;
using ( var json_reader = new JsonTextReader(sw_read) ) {
icm = FindItem( json_reader, ds.GetIndex().DwarfHashCode );
}
if ( icm == null )
{
Errors.Messages.DisplayError("Can't find such item!", "Saving an item", "", DateTime.Now);
return;
}
var sw_write = new StreamWriter( File.Open( filepath, FileMode.Append ) );
using (var json_writer = new JsonTextWriter(sw_write)) {
if ( ds is Record ) {
icm.Contents = JsonConvert.SerializeObject(ds, Formatting.Indented );
} else if ( ds is DataContainer ) {
icm.Contents = JsonConvert.SerializeObject(ds as DataContainer, Formatting.Indented);
}
elem.ElementHash = ds.GetIndex().DwarfHashCode;
sw_write.Write(JsonConvert.SerializeObject(elem, Formatting.Indented));
}
} else {
Errors.Messages.DisplayError( "DataStructure object is null!", "", "", DateTime.Now);
}
}
/// <summary>
/// Adding a new item to a chunk file in multithread mode
/// </summary>
/// <param name="filepath">path to a file</param>
/// <param name="ds">datastructure</param>
public static void AddItem( string filepath, IStructure ds )
{
if ( ds != null ) {
var sw = new StreamWriter( File.Open( filepath, FileMode.Append ) );
using (var json_writer = new JsonTextWriter(sw)) {
var elem= new InnerChunkElement();
if ( ds is Record ) {
elem.ElementType = InnerChunkElement.ElemType.RECORD;
elem.ElemParentName = ((Record)ds).OwnerDC.Name;
elem.ElemParentHash = ((Record)ds).OwnerDC.GetIndex().DwarfHashCode;
elem.Contents = JsonConvert.SerializeObject(ds, Formatting.Indented );
} else if ( ds is DataContainer ) {
elem.ElementType = InnerChunkElement.ElemType.DATACONTAINER;
elem.ElemDB = ((DataContainer)ds).GetOwnerDB().Name;
elem.ElemParentName = null;
elem.ElemParentHash = null;
elem.ElementName = ((DataContainer)ds).Name;
var ds_sec = (DataContainer)ds;
elem.Contents = JsonConvert.SerializeObject(ds_sec, Formatting.Indented);
}
elem.ElementHash = ds.GetIndex().DwarfHashCode;
sw.Write(JsonConvert.SerializeObject(elem, Formatting.Indented));
}
} else {
Errors.Messages.DisplayError( "DataStructure object is null!", "", "", DateTime.Now);
}
}
public static IStructure FindItem( JsonReader json_reader, IStructure ds )
{
var item = new InnerChunkElement();
while ( json_reader.Read() ) {
item = json_serializer.Deserialize<InnerChunkElement>( json_reader );
if ( item.ElementHash == ds.GetIndex().DwarfHashCode ) {
return ds;
}
}
return null;
}
