Dimse.cs :  » Network-Clients » DICOM » org » dicomcs » net » C# / CSharp Open Source

#region Copyright
// 
// This library is based on dcm4che see http://www.sourceforge.net/projects/dcm4che
// Copyright (c) 2002 by TIANI MEDGRAPH AG. All rights reserved.
//
// Modifications Copyright (C) 2002 Fang Yang. All rights reserved.
// 
// This file is part of dicomcs, see http://www.sourceforge.net/projects/dicom-cs
//
// This library is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.                                 
// 
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Fang Yang (yangfang@email.com)
//
#endregion

namespace org.dicomcs.net{
  using System;
  using System.IO;
  using org.dicomcs.data;
  using org.dicomcs.dict;
  
  /// <summary>
  /// </summary>
  public class Dimse : DataSourceI
  {
    public virtual Command Command
    {
      get { return cmd; }
    }
    public virtual String TransferSyntaxUID
    {
      get { return tsUID; }      
      set { this.tsUID = value; }      
    }
    public virtual Dataset Dataset
    {
      get
      {
        if (ds != null)
        {
          return ds;
        }
        if (m_ins == null)
        {
          return null;
        }
        if (tsUID == null)
        {
          throw new System.SystemException();
        }
        ds = new Dataset();
        ds.ReadDataset(m_ins, DcmDecodeParam.ValueOf(tsUID), 0);
        m_ins.Close();
        m_ins = null;
        return ds;
      }
      
    }
    public virtual Stream DataAsStream
    {
      get { return m_ins; }
    }
    
    private int m_pcid;
    private Command cmd;
    private Dataset ds;
    private Stream m_ins;
    private DataSourceI src;
    private String tsUID;
    
    public Dimse(int pcid, String tsUID, Command cmd, Stream ins)
    {
      this.m_pcid = pcid;
      this.cmd = cmd;
      this.ds = null;
      this.src = null;
      this.m_ins = ins;
      this.tsUID = tsUID;
    }
    
    public Dimse(int pcid, Command cmd, Dataset ds, DataSourceI src)
    {
      this.m_pcid = pcid;
      this.cmd = cmd;
      this.ds = ds;
      this.src = src;
      this.m_ins = null;
      this.tsUID = null;
      this.cmd.PutUS(Tags.DataSetType, ds == null && src == null?Command.NO_DATASET:0);
    }
    
    public int pcid()
    {
      return m_pcid;
    }
      
    public virtual void  WriteTo(Stream outs, String tsUID)
    {
      if (src != null)
      {
        src.WriteTo(outs, tsUID);
        return ;
      }
      if (ds == null)
      {
        throw new System.SystemException("Missing Dataset");
      }
      ds.WriteDataset(outs, DcmDecodeParam.ValueOf(tsUID));
    }
    
    
    public override String ToString()
    {
      return "[pc-" + m_pcid + "] " + cmd.ToString();
    }
  }
}