Android example source code file (ThrottleManager.java)

This example Android source code file (ThrottleManager.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

android, annotate, annotations, direction_rx, extra_cycle_start, ithrottlemanager, os, period_24hour, period_60min, period_60sec, period_cycle, period_hour, period_minute, period_month, period_week, remoteexception, string, throttlemanager

The ThrottleManager.java Android example source code

/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * 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 android.net;

import android.annotation.SdkConstant;
import android.annotation.SdkConstant.SdkConstantType;
import android.os.Binder;
import android.os.RemoteException;

/**
 * Class that handles throttling.  It provides read/write numbers per interface
 * and methods to apply throttled rates.
 * {@hide}
 */
public class ThrottleManager
{
    /**
     * Broadcast each polling period to indicate new data counts.
     *
     * Includes four extras:
     * EXTRA_CYCLE_READ - a long of the read bytecount for the current cycle
     * EXTRA_CYCLE_WRITE -a long of the write bytecount for the current cycle
     * EXTRA_CYLCE_START -a long of MS for the cycle start time
     * EXTRA_CYCLE_END   -a long of MS for the cycle stop time
     * {@hide}
     */
    public static final String THROTTLE_POLL_ACTION = "android.net.thrott.POLL_ACTION";
    /**
     * The lookup key for a long for the read bytecount for this period.  Retrieve with
     * {@link android.content.Intent#getLongExtra(String)}.
     * {@hide}
     */
    public static final String EXTRA_CYCLE_READ = "cycleRead";
    /**
     * contains a long of the number of bytes written in the cycle
     * {@hide}
     */
    public static final String EXTRA_CYCLE_WRITE = "cycleWrite";
    /**
     * contains a long of the number of bytes read in the cycle
     * {@hide}
     */
    public static final String EXTRA_CYCLE_START = "cycleStart";
    /**
     * contains a long of the ms since 1970 used to init a calendar, etc for the end
     * of the cycle
     * {@hide}
     */
    public static final String EXTRA_CYCLE_END = "cycleEnd";

    /**
     * Broadcast when the thottle level changes.
     * {@hide}
     */
    public static final String THROTTLE_ACTION = "android.net.thrott.THROTTLE_ACTION";
    /**
     * int of the current bandwidth in TODO
     * {@hide}
     */
    public static final String EXTRA_THROTTLE_LEVEL = "level";

    /**
     * Broadcast on boot and whenever the settings change.
     * {@hide}
     */
    public static final String POLICY_CHANGED_ACTION = "android.net.thrott.POLICY_CHANGED_ACTION";

    // {@hide}
    public static final int DIRECTION_TX = 0;
    // {@hide}
    public static final int DIRECTION_RX = 1;

    // {@hide}
    public static final int PERIOD_CYCLE  = 0;
    // {@hide}
    public static final int PERIOD_YEAR   = 1;
    // {@hide}
    public static final int PERIOD_MONTH  = 2;
    // {@hide}
    public static final int PERIOD_WEEK   = 3;
    // @hide
    public static final int PERIOD_7DAY   = 4;
    // @hide
    public static final int PERIOD_DAY    = 5;
    // @hide
    public static final int PERIOD_24HOUR = 6;
    // @hide
    public static final int PERIOD_HOUR   = 7;
    // @hide
    public static final int PERIOD_60MIN  = 8;
    // @hide
    public static final int PERIOD_MINUTE = 9;
    // @hide
    public static final int PERIOD_60SEC  = 10;
    // @hide
    public static final int PERIOD_SECOND = 11;

    

    /**
     * returns a long of the ms from the epoch to the time the current cycle ends for the
     * named interface
     * {@hide}
     */
    public long getResetTime(String iface) {
        try {
            return mService.getResetTime(iface);
        } catch (RemoteException e) {
            return -1;
        }
    }

    /**
     * returns a long of the ms from the epoch to the time the current cycle started for the
     * named interface
     * {@hide}
     */
    public long getPeriodStartTime(String iface) {
        try {
            return mService.getPeriodStartTime(iface);
        } catch (RemoteException e) {
            return -1;
        }
    }

    /**
     * returns a long of the byte count either read or written on the named interface
     * for the period described.  Direction is either DIRECTION_RX or DIRECTION_TX and
     * period may only be PERIOD_CYCLE for the current cycle (other periods may be supported
     * in the future).  Ago indicates the number of periods in the past to lookup - 0 means
     * the current period, 1 is the last one, 2 was two periods ago..
     * {@hide}
     */
    public long getByteCount(String iface, int direction, int period, int ago) {
        try {
            return mService.getByteCount(iface, direction, period, ago);
        } catch (RemoteException e) {
            return -1;
        }
    }

    /**
     * returns the number of bytes read+written after which a particular cliff
     * takes effect on the named iface.  Currently only cliff #1 is supported (1 step)
     * {@hide}
     */
    public long getCliffThreshold(String iface, int cliff) {
        try {
            return mService.getCliffThreshold(iface, cliff);
        } catch (RemoteException e) {
            return -1;
        }
    }

    /**
     * returns the thottling bandwidth (bps) for a given cliff # on the named iface.
     * only cliff #1 is currently supported.
     * {@hide}
     */
    public int getCliffLevel(String iface, int cliff) {
        try {
            return mService.getCliffLevel(iface, cliff);
        } catch (RemoteException e) {
            return -1;
        }
    }

    /**
     * returns the help URI for throttling
     * {@hide}
     */
    public String getHelpUri() {
        try {
            return mService.getHelpUri();
        } catch (RemoteException e) {
            return null;
        }
    }


    private IThrottleManager mService;

    /**
     * Don't allow use of default constructor.
     */
    @SuppressWarnings({"UnusedDeclaration"})
    private ThrottleManager() {
    }

    /**
     * {@hide}
     */
    public ThrottleManager(IThrottleManager service) {
        if (service == null) {
            throw new IllegalArgumentException(
                "ThrottleManager() cannot be constructed with null service");
        }
        mService = service;
    }
}