Android Open Source - Emmagee Traffic Info

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright (c) 2012-2013 NetEase, Inc. and other contributors
 *// ww  w.  j  ava2s .  com
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */
package com.netease.qa.emmagee.utils;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;

import android.util.Log;

public class TrafficInfo {

  private static final String LOG_TAG = "Emmagee-"
      + TrafficInfo.class.getSimpleName();
  
  private String uid;
  
  public TrafficInfo(String uid){
    this.uid = uid;
  }

  /**
   * get total network traffic, which is the sum of upload and download traffic
   * 
   * @return total traffic include received and send traffic
   */
  public long getTrafficInfo() {
    Log.i(LOG_TAG,"get traffic information");
    String rcvPath = "/proc/uid_stat/" + uid + "/tcp_rcv";
    String sndPath = "/proc/uid_stat/" + uid + "/tcp_snd";
    long rcvTraffic = -1;
    long sndTraffic = -1;
    try {
      RandomAccessFile rafRcv = new RandomAccessFile(rcvPath, "r");
      RandomAccessFile rafSnd = new RandomAccessFile(sndPath, "r");
      rcvTraffic = Long.parseLong(rafRcv.readLine());
      sndTraffic = Long.parseLong(rafSnd.readLine());
    } catch (FileNotFoundException e) {
      rcvTraffic = -1;
      sndTraffic = -1;
    } catch (NumberFormatException e) {
      Log.e(LOG_TAG, "NumberFormatException: " + e.getMessage());
      e.printStackTrace();
    } catch (IOException e) {
      Log.e(LOG_TAG, "IOException: " + e.getMessage());
      e.printStackTrace();
    }
    if (rcvTraffic == -1 || sndTraffic == -1) {
      return -1;
    } else
      return (rcvTraffic + sndTraffic);
  }
}

Java Source Code List

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