Examples of org.eclipse.ecf.ipc.IPCException

org.eclipse.ecf.ipc.IPCException
A problem occurred while trying to use an IPC mechanism.
This class allows clients to distinguish between exceptions generated by the classes in this package and exceptions from other sources. The exact nature of the exception should be denoted by the message, which should be taken from one of the constants defined in the {@link Messages} class. @author Clark N. Hobbie

      }
      catch (IOException e)
      {
        String msg =
          "Error trying to read/write virtual file: " + getVirtualName();
        throw new IPCException(msg,e);
      }
    }
    
    setActualName(actual);
  }

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   */
  public int write(byte[] buffer, int offset, int length, int timeoutMsec) throws IPCException
  {
    if (getDirection() != PipeDirection.Writer)
    {
      throw new IPCException("Attempt to write to a read-only pipe.");
    }


    FIFOResult result = new FIFOResult();
    writeImpl(result, buffer, offset, length, timeoutMsec);
    if (result.resultCode != FIFOResult.SUCCESS)
    {
      String msg = "Error writing named pipe, error code = " + result.errorCode;


      throw new IPCException(msg);
    }


    return result.byteCount;
  }

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  public int read(byte[] buffer, int offset, int length, int timeoutMsec) throws IPCException
  {
    if (PipeDirection.Reader != getDirection())
    {
      throw new IPCException("Attempt to read a write-only pipe.");
    }


    FIFOResult result = new FIFOResult();
    readImpl(result, buffer, offset, length, timeoutMsec);


    if (result.resultCode == FIFOResult.ERROR_PIPE_CLOSED)
    {
      return -1;
    }
    
    if (result.resultCode != FIFOResult.SUCCESS)
    {
      String msg = "Error reading named pipe, code = " + result.errorCode;
      throw new IPCException(msg);
    }


    return result.byteCount;
  }

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   */
  public void connect(File file, int size) throws IPCException
  {
    if (null != this.byteBuffer)
    {
      throw new IPCException(Errors.AlreadyConnected);
    }


    myFileCreator = false;
    try
    {
      myFileCreator = file.createNewFile();
    }
    catch (IOException e)
    {
      throw new IPCException(Errors.ExceptionCreatingFile, e);
    }


    RandomAccessFile raf = null;
    try
    {
      raf = new RandomAccessFile(file, "rw");
    }
    catch (FileNotFoundException e)
    {
      throw new IPCException(Errors.ErrorOpeningMappingFile, e);
    }


    channel = raf.getChannel();
    try
    {
      this.byteBuffer = channel.map(MapMode.READ_WRITE, 0, size);
    }
    catch (IOException e)
    {
      throw new IPCException(Errors.ErrorCreatingMap, e);
    }


    this.segmentFile = file;
    this.size = size;
  }

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  {
    try
    {
      if (null == this.byteBuffer)
      {
        throw new IPCException(Errors.NotConnected);
      }


      this.byteBuffer.position(segmentOffset);
      this.byteBuffer.put(buf, buffOffset, bufLength);
    }

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   */
  public int read(int soffset, byte[] buf, int boffset, int length) throws IPCException
  {
    if (null == byteBuffer)
    {
      throw new IPCException(Errors.NotConnected);
    }


    if (length > byteBuffer.remaining())
      length = byteBuffer.remaining();

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        default:
          msg = "An unknown error was encountered while trying to create the named pipe";
          break;
      }


      throw new IPCException(msg);
    }
  }

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    catch (IOException e)
    {
      String msg = "An error was encountered while trying to read the actual "
          + "name of a named pipe from its virtual name.";


      throw new IPCException(msg, e);
    }
  }

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        case FIFOResult.ERROR_INVALID_HANDLE:
        {
          String msg = "Attempt to listen to an unconnected named pipe.  "
              + "Error code = " + result.errorCode;


          throw new IPCException(msg);
        }


        default:
        {
          String msg = "An unknown error was encountered while trying to listen "
              + "for a client.  " + "Error code = " + result.errorCode;


          throw new IPCException(msg);
        }
      }
    }
  }

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    {
      case Success:
        break;


      case InsufficientPermissions:
        throw new IPCException(Errors.Permissions);


      default:
        throw new IPCException(Errors.Unknown);
    }


    setHandle(result.handle);
  }

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Related Classes of org.eclipse.ecf.ipc.IPCException

org.eclipse.ecf.ipc.fifo.FIFO

org.eclipse.ecf.ipc.fifo.FIFOImpl

org.eclipse.ecf.ipc.semaphore.Semaphore

org.eclipse.ecf.ipc.sharedmemory.SharedMemory

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