sdnr/wireless-transport/code-Carbon-SR1/apps/route/impl/src/main/java/com/highstreet/technologies/odl/app/impl/tools/BandwidthCalculator.java

   1 /*
   2  * Copyright © 2015 ZTE and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package com.highstreet.technologies.odl.app.impl.tools;
   9
  10 import org.slf4j.Logger;
  11 import org.slf4j.LoggerFactory;
  12
  13 import java.text.DecimalFormat;
  14
  15 import static com.google.common.math.DoubleMath.log2;
  16
  17 /**
  18  * Created by odl on 17-6-8.
  19  */
  20 public class BandwidthCalculator
  21 {
  22     private static final Logger LOG = LoggerFactory.getLogger(BandwidthCalculator.class);
  23
  24     public BandwidthCalculator(Integer txChannelBandwidth, Short modulationCur, Byte codeRateCur)
  25     {
  26         LOG.info("bandwidth: " + txChannelBandwidth + " modulationCur: " + modulationCur + " codeRate: " + codeRateCur);
  27         this.result = txChannelBandwidth * log2(modulationCur) * (0.8) / 1.15;
  28     }
  29
  30     private static DecimalFormat df = new DecimalFormat("#.00");
  31     private final double result;
  32
  33     public Double calc(Unit unit)
  34     {
  35         return Double.valueOf(df.format(unit.convert(result, Unit.k_bits_s)));
  36     }
  37
  38     public Double calc()
  39     {
  40         return Double.valueOf(df.format(result));
  41     }
  42 }