P25 work in progress

src/decode/p25/message/tdu/lc/GroupVoiceChannelUpdate.java

@@ -0,0 +1,158 @@
+package decode.p25.message.tdu.lc;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import decode.p25.message.IdentifierProvider;
+import decode.p25.message.tsbk.osp.control.IdentifierProviderReceiver;
+import decode.p25.reference.LinkControlOpcode;
+
+public class GroupVoiceChannelUpdate extends TDULinkControlMessage
+									 implements IdentifierProviderReceiver
+{
+	private final static Logger mLog = 
+			LoggerFactory.getLogger( GroupVoiceChannelUpdate.class );
+
+	public static final int[] IDENTIFIER_A = { 72,73,74,75 };
+	public static final int[] CHANNEL_A = { 88,89,90,91,92,93,94,95,96,97,98,99 };
+	public static final int[] GROUP_ADDRESS_A = { 112,113,114,115,116,117,118,
+		119,120,121,122,123,136,137,138,139 };
+	public static final int[] IDENTIFIER_B = { 140,141,142,143 };
+	public static final int[] CHANNEL_B = { 144,145,146,147,160,161,162,163,164,
+		165,166,167 };
+	public static final int[] GROUP_ADDRESS_B = { 168,169,170,171,184,185,186,
+		187,188,189,190,191,192,193,194,195 };
+	
+	private IdentifierProvider mIdentifierUpdateA;
+	private IdentifierProvider mIdentifierUpdateB;
+	
+	public GroupVoiceChannelUpdate( TDULinkControlMessage source )
+	{
+		super( source );
+	}
+	
+    @Override
+    public String getEventType()
+    {
+        return LinkControlOpcode.GROUP_VOICE_CHANNEL_UPDATE.getDescription();
+    }
+
+	@Override
+	public String getMessage()
+	{
+		StringBuilder sb = new StringBuilder();
+		
+		sb.append( getMessageStub() );
+		
+		sb.append( " CHAN A:" + getChannelA() );
+		
+		sb.append( " GRP A:" + getGroupAddressA() );
+		
+		if( hasChannelB() )
+		{
+			sb.append( " CHAN B:" + getChannelA() );
+			
+			sb.append( " GRP B:" + getGroupAddressA() );
+		}
+		
+		return sb.toString();
+	}
+
+	public int getChannelIdentifierA()
+	{
+		return mMessage.getInt( IDENTIFIER_A );
+	}
+	
+    public int getChannelNumberA()
+    {
+    	return mMessage.getInt( CHANNEL_A );
+    }
+    
+    public String getChannelA()
+    {
+    	return getChannelIdentifierA() + "-" + getChannelNumberA();
+    }
+    
+	public int getChannelIdentifierB()
+	{
+		return mMessage.getInt( IDENTIFIER_B );
+	}
+	
+    public int getChannelNumberB()
+    {
+    	return mMessage.getInt( CHANNEL_B );
+    }
+    
+    public String getChannelB()
+    {
+    	return getChannelIdentifierB() + "-" + getChannelNumberB();
+    }
+    
+    public boolean hasChannelB()
+    {
+    	return getChannelNumberB() != 0;
+    }
+    
+    public String getGroupAddressA()
+    {
+    	return mMessage.getHex( GROUP_ADDRESS_A, 4 );
+    }
+
+    public String getGroupAddressB()
+    {
+    	return mMessage.getHex( GROUP_ADDRESS_B, 4 );
+    }
+
+	@Override
+    public void setIdentifierMessage( int identifier, IdentifierProvider message )
+    {
+		if( identifier == getChannelIdentifierA() )
+		{
+			mIdentifierUpdateA = message;
+		}
+		if( identifier == getChannelIdentifierB() )
+		{
+			mIdentifierUpdateB = message;
+		}
+    }
+
+	@Override
+    public int[] getIdentifiers()
+    {
+		if( hasChannelB() )
+		{
+			int[] identifiers = new int[ 2 ];
+			identifiers[ 0 ] = getChannelIdentifierA();
+			identifiers[ 1 ] = getChannelIdentifierB();
+			
+			return identifiers;
+		}
+		else
+		{
+			int[] identifiers = new int[ 1 ];
+			identifiers[ 0 ] = getChannelIdentifierA();
+			
+			return identifiers;
+		}
+    }
+
+    public long getDownlinkFrequencyA()
+    {
+    	return calculateDownlink( mIdentifierUpdateA, getChannelNumberA() );
+    }
+    
+    public long getUplinkFrequencyA()
+    {
+    	return calculateUplink( mIdentifierUpdateA, getChannelNumberA() );
+    }
+
+    public long getDownlinkFrequencyB()
+    {
+    	return calculateDownlink( mIdentifierUpdateB, getChannelNumberA() );
+    }
+    
+    public long getUplinkFrequencyB()
+    {
+    	return calculateUplink( mIdentifierUpdateB, getChannelNumberA() );
+    }
+}