P25 Decoder work in progress

src/decode/p25/message/tsbk/UnitChannelGrant.java

@@ -0,0 +1,86 @@
+package decode.p25.message.tsbk;
+
+import alias.Alias;
+import alias.AliasList;
+import bits.BitSetBuffer;
+import decode.p25.reference.DataUnitID;
+
+public abstract class UnitChannelGrant extends ChannelGrant
+{
+    public static final int[] TARGET_ADDRESS = { 96,97,98,99,100,101,102,103,
+        104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119 };
+    
+    public static final int[] SOURCE_ADDRESS = { 120,121,122,123,124,125,126,
+        127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143 };
+    
+    public UnitChannelGrant( BitSetBuffer message, 
+                                   DataUnitID duid,
+                                   AliasList aliasList ) 
+    {
+        super( message, duid, aliasList );
+    }
+
+    public String getMessage()
+    {
+        StringBuilder sb = new StringBuilder();
+        
+        sb.append( super.getMessage() );
+        
+        if( isEmergency() )
+        {
+            sb.append( " EMERGENCY" );
+        }
+        
+        sb.append( " FROM:" );
+        sb.append( getSourceAddress() );
+        
+        sb.append( " TO:" );
+        sb.append( getTargetAddress() );
+        
+        return sb.toString();
+    }
+    
+    public String getTargetAddress()
+    {
+        return mMessage.getHex( TARGET_ADDRESS, 6 );
+    }
+    
+    public String getSourceAddress()
+    {
+        return mMessage.getHex( SOURCE_ADDRESS, 6 );
+    }
+    
+    @Override
+    public String getFromID()
+    {
+        return getSourceAddress();
+    }
+
+    @Override
+    public Alias getFromIDAlias()
+    {
+        if( mAliasList != null )
+        {
+            return mAliasList.getTalkgroupAlias( getFromID() );
+        }
+        
+        return null;
+    }
+
+    @Override
+    public String getToID()
+    {
+        return getTargetAddress();
+    }
+
+    @Override
+    public Alias getToIDAlias()
+    {
+        if( mAliasList != null )
+        {
+            return mAliasList.getTalkgroupAlias( getToID() );
+        }
+        
+        return null;
+    }
+}