CellIdentityValidator.java 文件源码

public boolean isValid(CellInfo cellInfo) {
    if (cellInfo instanceof CellInfoGsm) {
        CellInfoGsm gsmCellInfo = (CellInfoGsm) cellInfo;
        // If is compatible with API 17 hack (PSC on GSM) return true
        boolean wcdmaApi17Valid = getWcdmaValidator().isValid(gsmCellInfo.getCellIdentity());
        if (wcdmaApi17Valid)
            return true;
        return getGsmValidator().isValid(gsmCellInfo.getCellIdentity());
    }
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2 && cellInfo instanceof CellInfoWcdma) {
        CellInfoWcdma wcdmaCellInfo = (CellInfoWcdma) cellInfo;
        return getWcdmaValidator().isValid(wcdmaCellInfo.getCellIdentity());
    }
    if (cellInfo instanceof CellInfoLte) {
        CellInfoLte lteCellInfo = (CellInfoLte) cellInfo;
        return getLteValidator().isValid(lteCellInfo.getCellIdentity());
    }
    if (cellInfo instanceof CellInfoCdma) {
        CellInfoCdma cdmaCellInfo = (CellInfoCdma) cellInfo;
        return getCdmaValidator().isValid(cdmaCellInfo.getCellIdentity());
    }
    throw new UnsupportedOperationException("Cell identity type not supported `" + cellInfo.getClass().getName() + "`");
}