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#979 Updates DMR Tier III channel number issues and provides user option to ignore CRC checksums for DMR decoder with RAS-enabled systems. Adds support for Tier III traffic channel system parameters SLCO message. (#980)

Browse Source 
Co-authored-by: Denny <denny@denny-desktop>
This commit is contained in:
Denny Sheirer
2020-10-25 06:09:57 -04:00
committed by GitHub
parent de8cfa24f9
commit 05c0b51fde
13 changed files with 251 additions and 37 deletions
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48
src/main/java/io/github/dsheirer/module/decode/dmr/DMRDecoderState.java
View File

@@ -94,6 +94,7 @@ public class DMRDecoderState extends TimeslotDecoderState
private DMRTrafficChannelManager mTrafficChannelManager;
private DecodeEvent mCurrentCallEvent;
private long mCurrentFrequency;
private boolean mIgnoreCRCChecksums;
private Map<Integer,DecodeEvent> mDetectedCallEventsMap = new TreeMap<>();
private static final AddChannelRotationActiveStateRequest CAPACITY_PLUS_ACTIVE_STATE_REQUEST =
new AddChannelRotationActiveStateRequest(State.ACTIVE);
@@ -116,6 +117,12 @@ public class DMRDecoderState extends TimeslotDecoderState
{
mNetworkConfigurationMonitor = new DMRNetworkConfigurationMonitor(channel);
}
//For RAS protected systems, allows user to ignore CRC checksums and still decode the system
if(channel.getDecodeConfiguration() instanceof DecodeConfigDMR)
{
mIgnoreCRCChecksums = ((DecodeConfigDMR)channel.getDecodeConfiguration()).getIgnoreCRCChecksums();
}
}
/**
@@ -190,7 +197,7 @@ public class DMRDecoderState extends TimeslotDecoderState
{
processData((DataMessage)message);
}
else if(message.isValid() && message instanceof LCMessage)
else if((message.isValid() || mIgnoreCRCChecksums) && message instanceof LCMessage)
{
processLinkControl((LCMessage)message, false);
}
@@ -204,13 +211,14 @@ public class DMRDecoderState extends TimeslotDecoderState
}
}
//SLCO messages on timeslot 0 to catch capacity plus rest channel events
else if(message.isValid() && message.getTimeslot() == 0 && message instanceof LCMessage)
else if((message.isValid() || mIgnoreCRCChecksums) && message.getTimeslot() == 0 && message instanceof LCMessage)
{
processLinkControl((LCMessage)message, false);
}
//Pass the message to the network configuration monitor, if this decoder state has a non-null instance
if(mNetworkConfigurationMonitor != null && message.isValid() && message instanceof DMRMessage)
if(mNetworkConfigurationMonitor != null && (message.isValid() || mIgnoreCRCChecksums) &&
message instanceof DMRMessage)
{
mNetworkConfigurationMonitor.process((DMRMessage)message);
}
@@ -264,7 +272,7 @@ public class DMRDecoderState extends TimeslotDecoderState
*/
private void processPacket(DMRPacketMessage packet)
{
broadcast(new DecoderStateEvent(this, Event.CONTINUATION, State.DATA, getTimeslot()));
broadcast(new DecoderStateEvent(this, Event.START, State.DATA, getTimeslot()));
DecodeEvent packetEvent = DMRDecodeEvent.builder(packet.getTimestamp())
.eventDescription(DecodeEventType.DATA_PACKET.name())
@@ -301,7 +309,7 @@ public class DMRDecoderState extends TimeslotDecoderState
case MBC_ENC_HEADER:
case DATA_ENC_HEADER:
case CHANNEL_CONTROL_ENC_HEADER:
broadcast(new DecoderStateEvent(this, Event.CONTINUATION, State.DATA, getTimeslot()));
broadcast(new DecoderStateEvent(this, Event.START, State.DATA, getTimeslot()));
break;
}
@@ -325,7 +333,7 @@ public class DMRDecoderState extends TimeslotDecoderState
switch(message.getSlotType().getDataType())
{
case CSBK:
if(message.isValid() && message instanceof CSBKMessage)
if((message.isValid() || mIgnoreCRCChecksums) && message instanceof CSBKMessage)
{
processCSBK((CSBKMessage)message);
}
@@ -360,10 +368,12 @@ public class DMRDecoderState extends TimeslotDecoderState
processTerminator((Terminator)message);
}
break;
case MBC_BLOCK:
case RATE_1_OF_2_DATA:
case RATE_3_OF_4_DATA:
case RATE_1_DATA:
broadcast(new DecoderStateEvent(this, Event.START, State.DATA, getTimeslot()));
break;
case MBC_BLOCK:
case RESERVED_15:
case UNKNOWN:
default:
@@ -410,7 +420,7 @@ public class DMRDecoderState extends TimeslotDecoderState
if(csbk instanceof Acknowledge)
{
DecodeEvent ackEvent = DMRDecodeEvent.builder(csbk.getTimestamp())
.eventDescription(DecodeEventType.RESPONSE.name())
.eventDescription(DecodeEventType.RESPONSE.toString())
.identifiers(getMergedIdentifierCollection(csbk.getIdentifiers()))
.timeslot(csbk.getTimeslot())
.details(((Acknowledge)csbk).getReason().toString())
@@ -425,7 +435,7 @@ public class DMRDecoderState extends TimeslotDecoderState
if(csbk instanceof Acknowledge)
{
DecodeEvent ackEvent = DMRDecodeEvent.builder(csbk.getTimestamp())
.eventDescription(DecodeEventType.RESPONSE.name())
.eventDescription(DecodeEventType.RESPONSE.toString())
.identifiers(getMergedIdentifierCollection(csbk.getIdentifiers()))
.timeslot(csbk.getTimeslot())
.details(((Acknowledge)csbk).getReason().toString())
@@ -442,7 +452,7 @@ public class DMRDecoderState extends TimeslotDecoderState
{
case AUTHENTICATE_REGISTER_RADIO_CHECK_SERVICE:
DecodeEvent registerEvent = DMRDecodeEvent.builder(csbk.getTimestamp())
.eventDescription(DecodeEventType.COMMAND.name())
.eventDescription(DecodeEventType.COMMAND.toString())
.identifiers(getMergedIdentifierCollection(csbk.getIdentifiers()))
.timeslot(csbk.getTimeslot())
.details(DecodeEventType.REGISTER.toString())
@@ -451,7 +461,7 @@ public class DMRDecoderState extends TimeslotDecoderState
break;
case CANCEL_CALL_SERVICE:
DecodeEvent cancelEvent = DMRDecodeEvent.builder(csbk.getTimestamp())
.eventDescription(DecodeEventType.COMMAND.name())
.eventDescription(DecodeEventType.COMMAND.toString())
.identifiers(getMergedIdentifierCollection(csbk.getIdentifiers()))
.timeslot(csbk.getTimeslot())
.details("CANCEL CALL")
@@ -462,7 +472,7 @@ public class DMRDecoderState extends TimeslotDecoderState
if(csbk instanceof StunReviveKill)
{
DecodeEvent stunEvent = DMRDecodeEvent.builder(csbk.getTimestamp())
.eventDescription(DecodeEventType.COMMAND.name())
.eventDescription(DecodeEventType.COMMAND.toString())
.identifiers(getMergedIdentifierCollection(csbk.getIdentifiers()))
.timeslot(csbk.getTimeslot())
.details(((StunReviveKill)csbk).getCommand() + " RADIO")
@@ -483,7 +493,7 @@ public class DMRDecoderState extends TimeslotDecoderState
ServiceRadioCheck src = (ServiceRadioCheck)csbk;
DecodeEvent checkEvent = DMRDecodeEvent.builder(csbk.getTimestamp())
.eventDescription(DecodeEventType.RADIO_CHECK.name())
.eventDescription(DecodeEventType.RADIO_CHECK.toString())
.identifiers(getMergedIdentifierCollection(csbk.getIdentifiers()))
.timeslot(csbk.getTimeslot())
.details(src.getServiceDescription() + " SERVICE FOR " +
@@ -504,7 +514,7 @@ public class DMRDecoderState extends TimeslotDecoderState
if(aloha.hasRadioIdentifier())
{
DecodeEvent ackEvent = DMRDecodeEvent.builder(csbk.getTimestamp())
.eventDescription(DecodeEventType.RESPONSE.name())
.eventDescription(DecodeEventType.RESPONSE.toString())
.identifiers(getMergedIdentifierCollection(csbk.getIdentifiers()))
.timeslot(csbk.getTimeslot())
.details("Aloha Acknowledge")
@@ -523,7 +533,7 @@ public class DMRDecoderState extends TimeslotDecoderState
{
case MASS_REGISTRATION:
DecodeEvent massEvent = DMRDecodeEvent.builder(csbk.getTimestamp())
.eventDescription(DecodeEventType.REGISTER.name())
.eventDescription(DecodeEventType.REGISTER.toString())
.identifiers(getMergedIdentifierCollection(csbk.getIdentifiers()))
.timeslot(csbk.getTimeslot())
.details("MASS REGISTRATION")
@@ -534,7 +544,7 @@ public class DMRDecoderState extends TimeslotDecoderState
if(csbk instanceof VoteNowAdvice)
{
DecodeEvent voteEvent = DMRDecodeEvent.builder(csbk.getTimestamp())
.eventDescription(DecodeEventType.COMMAND.name())
.eventDescription(DecodeEventType.COMMAND.toString())
.identifiers(getMergedIdentifierCollection(csbk.getIdentifiers()))
.timeslot(csbk.getTimeslot())
.details("VOTE NOW FOR " + ((VoteNowAdvice)csbk).getVotedSystemIdentityCode())
@@ -558,7 +568,7 @@ public class DMRDecoderState extends TimeslotDecoderState
if(csbk instanceof Protect)
{
DecodeEvent protectEvent = DMRDecodeEvent.builder(csbk.getTimestamp())
.eventDescription(DecodeEventType.COMMAND.name())
.eventDescription(DecodeEventType.COMMAND.toString())
.identifiers(getMergedIdentifierCollection(csbk.getIdentifiers()))
.timeslot(csbk.getTimeslot())
.details("PROTECT: " + ((Protect)csbk).getProtectKind())
@@ -722,7 +732,7 @@ public class DMRDecoderState extends TimeslotDecoderState
if(cmAloha.hasRadioIdentifier())
{
DecodeEvent ackEvent = DMRDecodeEvent.builder(csbk.getTimestamp())
.eventDescription(DecodeEventType.RESPONSE.name())
.eventDescription(DecodeEventType.RESPONSE.toString())
.identifiers(getMergedIdentifierCollection(csbk.getIdentifiers()))
.timeslot(csbk.getTimeslot())
.details("Aloha Acknowledge")
@@ -1082,7 +1092,7 @@ public class DMRDecoderState extends TimeslotDecoderState
ic.update(gpsInformation.getGPSLocation());
DecodeEvent gpsEvent = DMRDecodeEvent.builder(message.getTimestamp())
.eventDescription(DecodeEventType.GPS.name())
.eventDescription(DecodeEventType.GPS.toString())
.identifiers(ic)
.timeslot(message.getTimeslot())
.details("LOCATION:" + gpsInformation.getGPSLocation())

2
src/main/java/io/github/dsheirer/module/decode/dmr/DMRNetworkConfigurationMonitor.java
View File

@@ -313,7 +313,7 @@ public class DMRNetworkConfigurationMonitor
if(mTier3Model != null)
{
sb.append("\nNetwork Model").append(mTier3Model);
sb.append("\nNetwork Model: ").append(mTier3Model);
}
//Observed DMR Channels

19
src/main/java/io/github/dsheirer/module/decode/dmr/DecodeConfigDMR.java
View File

@@ -39,6 +39,7 @@ public class DecodeConfigDMR extends DecodeConfiguration
public static final int CHANNEL_ROTATION_DELAY_MAXIMUM_MS = 2000;
private int mTrafficChannelPoolSize = TRAFFIC_CHANNEL_LIMIT_DEFAULT;
private boolean mIgnoreDataCalls = true;
private boolean mIgnoreCRCChecksums = false;
private List<TimeslotFrequency> mTimeslotMap = new ArrayList<>();
public DecodeConfigDMR()
@@ -90,6 +91,24 @@ public class DecodeConfigDMR extends DecodeConfiguration
mIgnoreDataCalls = ignore;
}
/**
* Indicates if decoder should ignore CRC checksums when validating decoded messages
*/
@JacksonXmlProperty(isAttribute = true, localName = "ignore_crc")
public boolean getIgnoreCRCChecksums()
{
return mIgnoreCRCChecksums;
}
/**
* Sets flag to ignore CRC checksums
* @param ignore true to ignore CRC checksums.
*/
public void setIgnoreCRCChecksums(boolean ignore)
{
mIgnoreCRCChecksums = ignore;
}
/**
* Traffic channel pool size.
* @return

40
src/main/java/io/github/dsheirer/module/decode/dmr/channel/DMRTier3Channel.java Normal file
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@@ -0,0 +1,40 @@
package io.github.dsheirer.module.decode.dmr.channel;
/**
* DMR Tier III Trunking Channel
*/
public class DMRTier3Channel extends DMRLogicalChannel
{
/**
* Constructs an instance. Note: radio reference uses a one based index, so we add a value of one to the
* calculated logical slot value for visual compatibility for users.
*
* @param channel number or repeater number
* @param timeslot
*/
public DMRTier3Channel(int channel, int timeslot)
{
super(channel, timeslot);
}
/**
* Logical slot number for this channel.
*
* Formula: LSN = (channel * 2) + timeslot
*
* @return logical slot number, a 1-based index value
*/
@Override
public int getLogicalSlotNumber()
{
int repeater = getRepeater();
if(repeater > 0)
{
return ((repeater) * 2) + getTimeslot();
}
return 0;
}
}

3
src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/standard/Clear.java
View File

@@ -26,6 +26,7 @@ import io.github.dsheirer.identifier.radio.RadioIdentifier;
import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
import io.github.dsheirer.module.decode.dmr.channel.DMRChannel;
import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
import io.github.dsheirer.module.decode.dmr.channel.DMRTier3Channel;
import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
import io.github.dsheirer.module.decode.dmr.identifier.DMRRadio;
@@ -208,7 +209,7 @@ public class Clear extends CSBKMessage implements ITimeslotFrequencyReceiver
if(mChannel == null)
{
mChannel = new DMRLogicalChannel(getMoveToChannelNumber(), getMoveToTimeslot());
mChannel = new DMRTier3Channel(getMoveToChannelNumber(), getMoveToTimeslot());
}
return mChannel;

4
src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/standard/MoveTSCC.java
View File

@@ -24,7 +24,7 @@ import io.github.dsheirer.identifier.Identifier;
import io.github.dsheirer.identifier.radio.RadioIdentifier;
import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
import io.github.dsheirer.module.decode.dmr.channel.DMRChannel;
import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
import io.github.dsheirer.module.decode.dmr.channel.DMRTier3Channel;
import io.github.dsheirer.module.decode.dmr.identifier.DMRRadio;
import io.github.dsheirer.module.decode.dmr.message.CACH;
import io.github.dsheirer.module.decode.dmr.message.data.SlotType;
@@ -156,7 +156,7 @@ public class MoveTSCC extends CSBKMessage
}
else
{
mDMRChannel = new DMRLogicalChannel(getMessage().getInt(CHANNEL_NUMBER), 1);
mDMRChannel = new DMRTier3Channel(getMessage().getInt(CHANNEL_NUMBER), 1);
}
}

3
src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/standard/announcement/AdjacentSiteInformation.java
View File

@@ -24,6 +24,7 @@ import io.github.dsheirer.identifier.Identifier;
import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
import io.github.dsheirer.module.decode.dmr.channel.DMRChannel;
import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
import io.github.dsheirer.module.decode.dmr.channel.DMRTier3Channel;
import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
import io.github.dsheirer.module.decode.dmr.message.CACH;
@@ -121,7 +122,7 @@ public class AdjacentSiteInformation extends Announcement implements ITimeslotFr
if(mChannel == null)
{
//Timeslot hard-coded to 1
mChannel = new DMRLogicalChannel(getMessage().getInt(NEIGHBOR_CHANNEL_NUMBER), 1);
mChannel = new DMRTier3Channel(getMessage().getInt(NEIGHBOR_CHANNEL_NUMBER), 1);
}
return mChannel;

6
src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/standard/announcement/AnnounceWithdrawTSCC.java
View File

@@ -23,7 +23,7 @@ import io.github.dsheirer.bits.CorrectedBinaryMessage;
import io.github.dsheirer.identifier.Identifier;
import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
import io.github.dsheirer.module.decode.dmr.channel.DMRChannel;
import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
import io.github.dsheirer.module.decode.dmr.channel.DMRTier3Channel;
import io.github.dsheirer.module.decode.dmr.message.CACH;
import io.github.dsheirer.module.decode.dmr.message.data.SlotType;
import io.github.dsheirer.module.decode.dmr.message.data.mbc.MBCContinuationBlock;
@@ -221,7 +221,7 @@ public class AnnounceWithdrawTSCC extends Announcement
}
else
{
mChannel1 = new DMRLogicalChannel(getMessage().getInt(CHANNEL_NUMBER_1), 1);
mChannel1 = new DMRTier3Channel(getMessage().getInt(CHANNEL_NUMBER_1), 1);
}
}
@@ -235,7 +235,7 @@ public class AnnounceWithdrawTSCC extends Announcement
{
if(mChannel2 == null)
{
mChannel2 = new DMRLogicalChannel(getMessage().getInt(CHANNEL_NUMBER_2), 1);
mChannel2 = new DMRTier3Channel(getMessage().getInt(CHANNEL_NUMBER_2), 1);
}
return mChannel2;

3
src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/standard/announcement/VoteNowAdvice.java
View File

@@ -24,6 +24,7 @@ import io.github.dsheirer.identifier.Identifier;
import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
import io.github.dsheirer.module.decode.dmr.channel.DMRChannel;
import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
import io.github.dsheirer.module.decode.dmr.channel.DMRTier3Channel;
import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
import io.github.dsheirer.module.decode.dmr.message.CACH;
@@ -203,7 +204,7 @@ public class VoteNowAdvice extends Announcement implements ITimeslotFrequencyRec
if(mChannel == null)
{
mChannel = new DMRLogicalChannel(getMessage().getInt(VOTED_CHANNEL_NUMBER), 1);
mChannel = new DMRTier3Channel(getMessage().getInt(VOTED_CHANNEL_NUMBER), 1);
}
return mChannel;

3
src/main/java/io/github/dsheirer/module/decode/dmr/message/data/csbk/standard/grant/ChannelGrant.java
View File

@@ -23,6 +23,7 @@ import io.github.dsheirer.bits.CorrectedBinaryMessage;
import io.github.dsheirer.module.decode.dmr.DMRSyncPattern;
import io.github.dsheirer.module.decode.dmr.channel.DMRChannel;
import io.github.dsheirer.module.decode.dmr.channel.DMRLogicalChannel;
import io.github.dsheirer.module.decode.dmr.channel.DMRTier3Channel;
import io.github.dsheirer.module.decode.dmr.channel.ITimeslotFrequencyReceiver;
import io.github.dsheirer.module.decode.dmr.channel.TimeslotFrequency;
import io.github.dsheirer.module.decode.dmr.message.CACH;
@@ -148,7 +149,7 @@ public abstract class ChannelGrant extends CSBKMessage implements ITimeslotFrequ
if(mChannel == null)
{
mChannel = new DMRLogicalChannel(getChannelNumber(), getChannelGrantTimeslot());
mChannel = new DMRTier3Channel(getChannelNumber(), getChannelGrantTimeslot());
}
return mChannel;

5
src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/LCMessageFactory.java
View File

@@ -41,6 +41,7 @@ import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.ControlChanne
import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.HyteraXPTChannel;
import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.NullMessage;
import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.ShortLCMessage;
import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.TrafficChannelSystemParameters;
import io.github.dsheirer.module.decode.dmr.message.data.lc.shorty.UnknownShortLCMessage;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -152,11 +153,13 @@ public class LCMessageFactory
case SHORT_STANDARD_CONTROL_CHANNEL_SYSTEM_PARAMETERS:
slc = new ControlChannelSystemParameters(message, timestamp, timeslot);
break;
case SHORT_STANDARD_TRAFFIC_CHANNEL_SYSTEM_PARAMETERS:
slc = new TrafficChannelSystemParameters(message, timestamp, timeslot);
break;
case SHORT_HYTERA_XPT_CHANNEL:
case SHORT_STANDARD_XPT_CHANNEL:
slc = new HyteraXPTChannel(message, timestamp, timeslot);
break;
case SHORT_STANDARD_TRAFFIC_CHANNEL_SYSTEM_PARAMETERS:
case SHORT_STANDARD_UNKNOWN:
default:
slc = new UnknownShortLCMessage(message, timestamp, timeslot);

112
src/main/java/io/github/dsheirer/module/decode/dmr/message/data/lc/shorty/TrafficChannelSystemParameters.java Normal file
View File

@@ -0,0 +1,112 @@
/*
* *****************************************************************************
* Copyright (C) 2014-2020 Dennis Sheirer
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
* ****************************************************************************
*/
package io.github.dsheirer.module.decode.dmr.message.data.lc.shorty;
import io.github.dsheirer.bits.CorrectedBinaryMessage;
import io.github.dsheirer.identifier.Identifier;
import io.github.dsheirer.module.decode.dmr.message.type.SystemIdentityCode;
import java.util.ArrayList;
import java.util.List;
/**
* DMR Tier III - Traffic Channel System Parameters
*/
public class TrafficChannelSystemParameters extends ShortLCMessage
{
private static final int SYSTEM_IDENTITY_CODE_OFFSET = 4;
private static final int REGISTRATION_REQUIRED_FLAG = 18;
private static final int[] COMMON_SLOT_COUNTER = new int[]{19, 20, 21, 22, 23, 24, 25, 26, 27};
private SystemIdentityCode mSystemIdentityCode;
private List<Identifier> mIdentifiers;
/**
* Constructs an instance
*
* @param message containing link control data
*/
public TrafficChannelSystemParameters(CorrectedBinaryMessage message, long timestamp, int timeslot)
{
super(message, timestamp, timeslot);
}
@Override
public String toString()
{
StringBuilder sb = new StringBuilder();
if(!isValid())
{
sb.append("[CRC ERROR] ");
}
sb.append("SLC TIER III TRAFFIC CHANNEL ").append(getSystemIdentityCode().getModel());
sb.append(" NET:").append(getSystemIdentityCode().getNetwork());
sb.append(" SITE:").append(getSystemIdentityCode().getSite());
if(isRegistrationRequired())
{
sb.append(" REGISTRATION REQUIRED");
}
sb.append(" SLOT COUNTER:").append(getCommonSlotCounter());
sb.append(" MSG:").append(getMessage().toHexString());
return sb.toString();
}
/**
* System Identity Code structure
*/
public SystemIdentityCode getSystemIdentityCode()
{
if(mSystemIdentityCode == null)
{
mSystemIdentityCode = new SystemIdentityCode(getMessage(), SYSTEM_IDENTITY_CODE_OFFSET, false);
}
return mSystemIdentityCode;
}
/**
* Indicates if registration is required to access this network
*/
public boolean isRegistrationRequired()
{
return getMessage().get(REGISTRATION_REQUIRED_FLAG);
}
/**
* Common Slot Counter
*/
public int getCommonSlotCounter()
{
return getMessage().getInt(COMMON_SLOT_COUNTER);
}
@Override
public List<Identifier> getIdentifiers()
{
if(mIdentifiers == null)
{
mIdentifiers = new ArrayList<>();
mIdentifiers.add(getSystemIdentityCode().getNetwork());
mIdentifiers.add(getSystemIdentityCode().getSite());
}
return mIdentifiers;
}
}