CellState.java_14349550551512b900d4fee5b73cf95e

package android.telephony;

import android.telephony.ServiceState;
import android.telephony.CellIdentity;
import android.telephony.CellIdentityCdma;
import android.telephony.CellIdentityGsm;
import android.telephony.CellIdentityLte;
import android.telephony.CellIdentityTdscdma;
import android.telephony.CellIdentityWcdma;
import android.telephony.CellIdentityNr;
import android.telephony.CellLocation;
import android.annotation.Nullable;

import java.util.ArrayList;
import java.util.List;


public class CellState {

    public String radioTechnology;

    // cell info
    public int arfcn;
    public int bsic;
    public int cid;
    public int lac;
    public int mcc;
    public String mccString;
    public int mnc;
    public String mncString;
    public int tac;
    public int[] cellBandwidths;
    public int channelNumber;
    public int rat;

    // signal
    public int signalStrength = 0; // RSSI, in average
    public int totalSignals = 0;
    public int signalLevel; // abstract level of signal strength
    public List<Integer> signals = new ArrayList<>();
    public int MAX_SIGNAL_LENGTH = 20;

    // operator info
    public String operatorAlphaLong;
    public String operatorAlphaShort;
    public String operatorNumeric;

    public CellState() {

    }

    public void initFromCellIdentity(CellIdentity cellIdentity) {
        if (cellIdentity == null)
            return;
        rat = cellIdentity.getType();
        switch(cellIdentity.getType()) {
            case CellInfo.TYPE_GSM:
                radioTechnology = "GSM";
                CellIdentityGsm gsm = ((CellIdentityGsm) cellIdentity);
                cid = gsm.getCid();
                lac = gsm.getLac();
                arfcn = gsm.getArfcn();
                bsic = gsm.getBsic();
                mcc = gsm.getMcc();
                mnc = gsm.getMnc();
                mccString = gsm.getMccString();
                mncString = gsm.getMncString();
                operatorAlphaLong = (String) gsm.getOperatorAlphaLong();
                operatorAlphaShort = (String) gsm.getOperatorAlphaShort();
                operatorNumeric = gsm.getMobileNetworkOperator();
                break;
            case CellInfo.TYPE_WCDMA:
                radioTechnology = "WCDMA";
                CellIdentityWcdma wcdma = ((CellIdentityWcdma) cellIdentity);
                cid = wcdma.getCid();
                lac = wcdma.getLac();
                arfcn = wcdma.getUarfcn();
                mcc = wcdma.getMcc();
                mnc = wcdma.getMnc();
                mccString = wcdma.getMccString();
                mncString = wcdma.getMncString();
                operatorAlphaLong = (String) wcdma.getOperatorAlphaLong();
                operatorAlphaShort = (String) wcdma.getOperatorAlphaShort();
                operatorNumeric = wcdma.getMobileNetworkOperator();
                break;
            case CellInfo.TYPE_TDSCDMA:
                radioTechnology = "TDSCDMA";
                CellIdentityTdscdma tdscdma = ((CellIdentityTdscdma) cellIdentity);
                cid = tdscdma.getCid();
                lac = tdscdma.getLac();
                mccString = tdscdma.getMccString();
                mncString = tdscdma.getMncString();
                arfcn = tdscdma.getUarfcn();
                operatorAlphaLong = (String) tdscdma.getOperatorAlphaLong();
                operatorAlphaShort = (String) tdscdma.getOperatorAlphaShort();
                operatorNumeric = tdscdma.getMobileNetworkOperator();
                break;
            case CellInfo.TYPE_LTE:
                radioTechnology = "LTE";
                CellIdentityLte lte = ((CellIdentityLte) cellIdentity);
                cid = lte.getCi();
                lac = lte.getTac();
                arfcn = lte.getEarfcn();
                mcc = lte.getMcc();
                mnc = lte.getMnc();
                mccString = lte.getMccString();
                mncString = lte.getMncString();
                tac = lte.getTac();
                operatorAlphaLong = (String) lte.getOperatorAlphaLong();
                operatorAlphaShort = (String) lte.getOperatorAlphaShort();
                operatorNumeric = lte.getMobileNetworkOperator();
                break;
            case CellInfo.TYPE_NR:
                radioTechnology = "NR";
                CellIdentityNr nr = ((CellIdentityNr) cellIdentity);
                cid = (int) nr.getNci();
                lac = nr.getTac();
                arfcn = nr.getNrarfcn();
                tac = nr.getTac();
                mccString = nr.getMccString();
                mncString = nr.getMncString();
                operatorAlphaLong = (String) nr.getOperatorAlphaLong();
                operatorAlphaShort = (String) nr.getOperatorAlphaShort();
                operatorNumeric = "";
                break;
            default:
                break;
        }
    }

    public void updateSignalStrength(int newSig) {
        // calculate new signal average (RSSI)
        if (newSig >= 0) {
            // filter wrong signals
            return;
        }
        if (signals.size() > MAX_SIGNAL_LENGTH) 
            signals.remove(0);
        signals.add(newSig);
        signalStrength = (signalStrength * totalSignals + newSig) / (totalSignals + 1);
        totalSignals += 1;
    }

    // TODO: android will sometimes scan incomplete info, but this may vary of different devices
    public boolean isValid() {
        if (cid > 65535 || lac > 65535 || mcc > 65535 || mnc > 65535)
            return false;
        if (mcc == 0 && mnc == 0)
            return false;
        return true;
    }

    @Override
    public boolean equals(Object other) {
        if (other == null) {
            return false;
        }

        if (other instanceof CellState) {
            CellState ocs = (CellState) other;
            if (ocs.cid != this.cid)
                return false;
            else if (ocs.lac != this.lac)
                return false;
            else if (ocs.arfcn != this.arfcn)
                return false;
            else if (ocs.mcc != this.mcc)
                return false;
            else if (ocs.mnc != this.mnc)
                return false;
        }
        else {
            return false;
        }

        return true;
    }

    @Override
    public String toString() {
        return new StringBuilder().append("\n=========Begin CellState=========\n")
                .append(radioTechnology)
                .append("\ncid=" + cid)
                .append("\nlac=" + lac)
                .append("\narfcn=" + arfcn)
                .append("\nmcc=" + mcc)
                .append("\nmnc=" + mnc)
                .append("\naverageRSSI=" + signalStrength)
                .append("\noperatorAlphaLong=" + operatorAlphaLong)
                .append("\noperatorAlphaShort=" + operatorAlphaShort)
                .append("\noperatorNumeric=" + operatorNumeric)
                .append("\n=========End CellState=========")
                .toString();
    }

    public int getArfcn() {return arfcn;}

    public int getCid() {return cid;}

    public int getLac() {return lac;}

    public int getMcc() {return mcc;}

    public int getMnc() {return mnc;}

    public int getSignalStrength() {return signalStrength;}

    public void setOperatorAlphaLong(@Nullable String s) {operatorAlphaLong = s;}

    public @Nullable String getOperatorAlphaLong() {return operatorAlphaLong;}

    public void setOperatorAlphaShort(@Nullable String s) {operatorAlphaShort = s;}

    public @Nullable String getOperatorAlphaShort() {return operatorAlphaShort;}

    public void setOperatorNumeric(@Nullable String s) {operatorNumeric = s;}

    public @Nullable String getOperatorNumeric() {return operatorNumeric;}
}