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DMRChannel.java
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DMRChannel.java
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/*
* *****************************************************************************
* Copyright (C) 2014-2023 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.channel;
import io.github.dsheirer.channel.IChannelDescriptor;
import io.github.dsheirer.identifier.Form;
import io.github.dsheirer.identifier.IdentifierClass;
import io.github.dsheirer.identifier.Role;
import io.github.dsheirer.identifier.integer.IntegerIdentifier;
import io.github.dsheirer.module.decode.p25.phase1.message.IFrequencyBand;
import io.github.dsheirer.protocol.Protocol;
import org.apache.commons.lang3.Validate;
/**
* Base DMR Channel
*
* Note: timeslots are tracked as 1 and 2
*/
public abstract class DMRChannel extends IntegerIdentifier implements IChannelDescriptor
{
private int mTimeslot;
/**
* Constructs an instance
* @param channel number or repeater number, one-based repeater number.
* @param timeslot in range: 1 or 2
*/
public DMRChannel(int channel, int timeslot)
{
super(channel, IdentifierClass.NETWORK, Form.CHANNEL, Role.BROADCAST);
Validate.inclusiveBetween(0, 2, timeslot, "Timeslot must be between 1 and 2");
mTimeslot = timeslot;
}
@Override
public Protocol getProtocol()
{
return Protocol.DMR;
}
/**
* Repeater number or channel number for the channel.
*/
public int getChannel()
{
return getValue();
}
/**
* Timeslot for the channel.
* @return timeslot as zero-based index with values in range: 0 or 1.
*/
public int getTimeslot()
{
return mTimeslot;
}
/**
* Number of timeslots for the DMR channel.
* @return 2 always.
*/
@Override
public int getTimeslotCount()
{
return 2;
}
/**
* Indicates (true) that this is a DMR TDMA channel.
*/
@Override
public boolean isTDMAChannel()
{
return true;
}
@Override
public String toString()
{
return "CHAN:" + getChannel() + ":" + getTimeslot();
}
/**
* Not implemented
*/
@Override
public int[] getFrequencyBandIdentifiers()
{
return new int[0];
}
/**
* Not implemented.
*/
@Override
public void setFrequencyBand(IFrequencyBand bandIdentifier)
{
throw new IllegalArgumentException("This method is not supported");
}
}