Files
stgsharp/StgSharp.Model/STEP/StepReader.ToModel.cs
T

107 lines
3.9 KiB
C#

//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
// file="StepReader.ToModel.cs"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
using StgSharp.Script;
using StgSharp.Script.Express;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
namespace StgSharp.Modeling.Step
{
public partial class StepReader
{
private volatile int _version = 0;
private StepDataTokenReader tokenReader;
private StepExpSyntaxAnalyzer analyzer;
private StepModel Model { get; set; }
private Task<StepModel> ReadToModelTask { get; set; }
public StepModel ReadToModel()
{
if( Model is not null ) {
return Model;
}
if( _version != 0 ) {
throw new InvalidOperationException(
"A ReadToModel method has been called and is running now, use Async version instead" );
}
Interlocked.Increment( ref _version );
GetInfo();
tokenReader = new StepDataTokenReader( DataTransmitter );
analyzer = new StepExpSyntaxAnalyzer();
Task secTask = Task.Run( ReadDataSection );
Task anTask = Task.Run( ReadStepToken );
ConcurrentQueue<ExpSyntaxNode> initStatements = analyzer.StepEntityInitStatements;
Model = new StepModel( _info );
while( initStatements.TryDequeue( out ExpSyntaxNode? statement ) || !anTask.IsCompleted )
{
if( statement is null )
{
Thread.Sleep( 0 );
continue;
}
StepUninitializedEntity entity = StepUninitializedEntity.FromSyntax(
Model, statement );
Model.AddUncertainEntity( entity.Id, entity );
}
Task.WaitAll( secTask, anTask );
return Model;
}
public async Task<StepModel> ReadToModelAsync()
{
if( ReadToModelTask is null ) {
ReadToModelTask = Task.Run( ReadToModel );
}
return await ReadToModelTask;
}
private void ReadStepToken()
{
while( !tokenReader.IsEmpty )
{
Token t = tokenReader.ReadToken();
analyzer.AppendToken( t );
}
}
}
}