Converting the Encoded Fax Image into Frames


The LCFrame.java file converts the encoded image of the document sent using the Fax application into frames.

Listing 6-9 shows the LCFrame.java file:

Listing 6-9: The LCFrame.java File

start example
 public class LCFrame {     byte bytes[];     int bytesCount;     public LCFrame(byte b[], int len)     {         bytes = new byte[256];         bytesCount = 0;         bytes = b;         bytesCount = len;     }     public LCFrame()     {         bytes = new byte[256];         bytesCount = 0;         bytes[0] = -1;         bytesCount++;         bytes[1] = 3;         bytesCount++;         bytes[2] = 0;         bytesCount++;     }     public void addByte(byte b)     {         bytes[bytesCount++] = b;     }     public void setLast(boolean l)     {         if(l)             bytes[1] = 19;         else             bytes[1] = 3;     }     public int getFrameType()     {         if(bytesCount > 2)         {             int b = bytes[2];             if(b < 0)                 b = 256 + b;             return b;         }        else       {            return 0;       }    }     public void setFrameType(byte t)     {         if(bytesCount > 2)             bytes[2] = t;     }     public boolean isLast()     {         if(bytesCount > 1)             return bytes[1] == 19;         else             return false;     }     public byte[] getData()     {         if(bytesCount <= 5)             return null;         byte r[] = new byte[bytesCount - 5];         for(int h = 0; h < r.length; h++)             r[h] = bytes[h + 3];         return r;     }     public byte[] getRawData()     {         byte r[] = new byte[bytesCount];         for(int h = 0; h < r.length; h++)             r[h] = bytes[h];         return r;     } } 
end example

Download this listing.

In the above listing, the LCFrame class converts a fax image to frames. The various methods defined in the LCFrame.java file are:

  • addByte(): Adds a byte to the fax document.

  • getFrameType(): Determines the type of frame that the Fax application sends.

  • setFrameType(): Sets the frame type for the image that the Fax application sends.

  • isLast():Determines whether the current data byte is the last byte or not.

  • getData():Retrieves the data that is converted into frames using the LCFrame class.

  • getRawData():Retrieves the data that the Fax application sends in the form of frames.




Developing Applications Using JCA
Developing Applications Using JCA
ISBN: N/A
EAN: N/A
Year: 2004
Pages: 43

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