mirror of
https://github.com/DSheirer/sdrtrunk.git
synced 2026-11-12 08:37:25 -05:00
c3d52ff86e
Changes to model, view and controller components and updates all gui editors. Removes the configuration panel and tree and replaces with 3 new panels. Updates playlist.xml to a new playlist_v2.xml format.
121 lines
3.7 KiB
Java
121 lines
3.7 KiB
Java
/*******************************************************************************
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* SDR Trunk
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* Copyright (C) 2014-2016 Dennis Sheirer
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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******************************************************************************/
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package module.decode.ltrstandard;
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import message.Message;
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import message.MessageDirection;
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import module.decode.ltrstandard.message.CallEndMessage;
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import module.decode.ltrstandard.message.CallMessage;
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import module.decode.ltrstandard.message.IdleMessage;
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import module.decode.ltrstandard.message.LTRStandardMessage;
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import module.decode.ltrstandard.message.UnknownMessage;
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import sample.Listener;
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import alias.AliasList;
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import bits.BinaryMessage;
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import edac.CRC;
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import edac.CRCLTR;
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public class LTRStandardMessageProcessor implements Listener<BinaryMessage>
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{
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private MessageDirection mDirection;
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private AliasList mAliasList;
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private Listener<Message> mMessageListener;
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/**
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* Processes raw binary messages and converts them to the correct message class
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*
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* @param direction - inbound (ISW) or outbound (OSW)
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* @param list - alias list
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*/
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public LTRStandardMessageProcessor( MessageDirection direction, AliasList list )
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{
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mDirection = direction;
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mAliasList = list;
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}
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@Override
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public void receive( BinaryMessage binaryMessage )
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{
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if( mMessageListener != null )
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{
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//Inbound Status Word (ISW) is a bit-flipped version of the Outbound
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//(OSW), so flip the bits and process it as an OSW
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if( mDirection == MessageDirection.ISW )
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{
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binaryMessage.flip( 0, 40 );
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}
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CRC crc = CRCLTR.check( binaryMessage, mDirection );
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if( crc != CRC.FAILED_CRC &&
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crc != CRC.FAILED_PARITY )
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{
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LTRStandardMessage message;
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int channel = binaryMessage.getInt( LTRStandardMessage.CHANNEL );
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int home = binaryMessage.getInt( LTRStandardMessage.HOME_REPEATER );
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int free = binaryMessage.getInt( LTRStandardMessage.FREE );
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int group = binaryMessage.getInt( LTRStandardMessage.GROUP );
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if( isValidChannel( channel ) &&
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isValidChannel( home ) &&
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isValidChannel( free ) )
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{
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if( channel == free && group == 255 )
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{
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message = new IdleMessage( binaryMessage, mDirection, mAliasList, crc );
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}
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else
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{
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message = new CallMessage( binaryMessage, mDirection, mAliasList, crc );
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}
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}
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else if( channel == 31 &&
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isValidChannel( home ) &&
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isValidChannel( free ) )
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{
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message = new CallEndMessage( binaryMessage, mDirection, mAliasList, crc );
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}
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else
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{
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message = new UnknownMessage( binaryMessage, mDirection, mAliasList, crc );
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}
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mMessageListener.receive( message );
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}
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}
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}
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/**
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* Checks the channel (LCN) number to ensure it is in the range 1 -20
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*/
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private boolean isValidChannel( int channel )
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{
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return ( 1 <= channel && channel <= 20 );
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}
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public void setMessageListener( Listener<Message> listener )
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{
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mMessageListener = listener;
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}
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public void removeMessageListener()
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{
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mMessageListener = null;
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}
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} |