TSBKMessage.java

package module.decode.p25.message.tsbk;

import module.decode.p25.message.P25Message;
import module.decode.p25.message.tsbk.motorola.MotorolaOpcode;
import module.decode.p25.message.tsbk.vendor.VendorOpcode;
import module.decode.p25.reference.DataUnitID;
import module.decode.p25.reference.Opcode;
import module.decode.p25.reference.Vendor;
import alias.AliasList;
import bits.BinaryMessage;
import edac.CRC;

public class TSBKMessage extends P25Message
{
	public static final int MESSAGE_START = 64;
	public static final int LAST_BLOCK_FLAG = 64;
	public static final int ENCRYPTED_FLAG = 65;
	public static final int[] OPCODE = { 66,67,68,69,70,71 };
	public static final int[] VENDOR_ID = { 72,73,74,75,76,77,78,79 };
	
	public static final int[] BLOCK1 = { 64,65,66,67,68,69,70,71 };
	public static final int[] BLOCK2 = { 72,73,74,75,76,77,78,79 };
	public static final int[] BLOCK3 = { 80,81,82,83,84,85,86,87 };
	public static final int[] BLOCK4 = { 88,89,90,91,92,93,94,95 };
	public static final int[] BLOCK5 = { 96,97,98,99,100,101,102,103 };
	public static final int[] BLOCK6 = { 104,105,106,107,108,109,110,111 };
	public static final int[] BLOCK7 = { 112,113,114,115,116,117,118,119 };
	public static final int[] BLOCK8 = { 120,121,122,123,124,125,126,127 };
	public static final int[] BLOCK9 = { 128,129,130,131,132,133,134,135 };
	public static final int[] BLOCK10 = { 136,137,138,139,140,141,142,143 };
	public static final int[] BLOCK11 = { 144,145,146,147,148,149,150,151 };
	public static final int[] BLOCK12 = { 152,153,154,155,156,157,158,159 };
	public static final int CRC_START = 144;

    public TSBKMessage( BinaryMessage message, DataUnitID duid, AliasList aliasList )
    {
	    super( message, duid, aliasList );

	    /* Since CRC is checked before construction, mark it as passed */
    	mCRC = new CRC[ 1 ];
    	mCRC[ 0 ] = CRC.PASSED;
    }
	
	public boolean isLastBlock()
	{
		return mMessage.get( LAST_BLOCK_FLAG );
	}
	
	public boolean isEncrypted()
	{
		return mMessage.get( ENCRYPTED_FLAG );
	}
	
	public Vendor getVendor()
	{
		return Vendor.fromValue( mMessage.getInt( VENDOR_ID ) );
	}
	
	public Opcode getOpcode()
	{
		return Opcode.fromValue( mMessage.getInt( OPCODE ) );
	}
	
	public MotorolaOpcode getMotorolaOpcode()
	{
		return MotorolaOpcode.fromValue( mMessage.getInt( OPCODE ) );
	}
	
	public VendorOpcode getVendorOpcode()
	{
		return VendorOpcode.fromValue( mMessage.getInt( OPCODE ) );
	}
	
	@Override
    public String getMessage()
    {
		StringBuilder sb = new StringBuilder();

		sb.append( getMessageStub() );
		
		sb.append( " - " + getMessageHex() );
		
	    return sb.toString();
    }
	
	protected String getMessageStub()
	{
		StringBuilder sb = new StringBuilder();

		Vendor vendor = getVendor();
		
		sb.append( "NAC:" );
		sb.append( getNAC() );
		sb.append( " " );
		sb.append( getDUID().getLabel() );

		if( vendor == Vendor.STANDARD )
		{
			if( isEncrypted() )
			{
				sb.append( " ENCRYPTED" );
			}
			else
			{
				sb.append( " " );
				sb.append( getOpcode().getLabel() );
			}
		}
		else
		{
			sb.append( " " );
			sb.append( vendor.getLabel() );

			if( isEncrypted() )
			{
				sb.append( " ENCRYPTED" );
			}
			else
			{
				sb.append( " OPCD:" );
				sb.append( mMessage.getHex( OPCODE, 2 ) );
			}
		}
		
	    return sb.toString();
	}
	
	public String getMessageHex()
	{
		StringBuilder sb = new StringBuilder();
		
		sb.append( mMessage.getHex( BLOCK1, 2 ) + " " );
		sb.append( mMessage.getHex( BLOCK2, 2 ) + " " );
		sb.append( mMessage.getHex( BLOCK3, 2 ) + " " );
		sb.append( mMessage.getHex( BLOCK4, 2 ) + " " );
		sb.append( mMessage.getHex( BLOCK5, 2 ) + " " );
		sb.append( mMessage.getHex( BLOCK6, 2 ) + " " );
		sb.append( mMessage.getHex( BLOCK7, 2 ) + " " );
		sb.append( mMessage.getHex( BLOCK8, 2 ) + " " );
		sb.append( mMessage.getHex( BLOCK9, 2 ) + " " );
		sb.append( mMessage.getHex( BLOCK10, 2 ) + " " );
		sb.append( mMessage.getHex( BLOCK11, 2 ) + " " );
		sb.append( mMessage.getHex( BLOCK12, 2 ) + " " );
		
		return sb.toString();
	}
}