telephony/java/android/telephony/ModemActivityInfo.java - platform/frameworks/base - Git at Google

 /*
  * Copyright (C) 2015 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.telephony;

 import android.annotation.DurationMillisLong;
 import android.annotation.ElapsedRealtimeLong;
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.os.SystemClock;
 import android.telephony.ServiceState.FrequencyRange;
 import android.util.Range;

 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.util.Arrays;
 import java.util.Objects;

 /**
  * Contains information about the modem's activity. May be useful for power stats reporting.
  * @hide
  */
 @SystemApi
 public final class ModemActivityInfo implements Parcelable {
     private static final int TX_POWER_LEVELS = 5;

     /**
      * Corresponds to transmit power of less than 0dBm.
      */
     public static final int TX_POWER_LEVEL_0 = 0;

     /**
      * Corresponds to transmit power between 0dBm and 5dBm.
      */
     public static final int TX_POWER_LEVEL_1 = 1;

     /**
      * Corresponds to transmit power between 5dBm and 15dBm.
      */
     public static final int TX_POWER_LEVEL_2 = 2;

     /**
      * Corresponds to transmit power between 15dBm and 20dBm.
      */
     public static final int TX_POWER_LEVEL_3 = 3;

     /**
      * Corresponds to transmit power above 20dBm.
      */
     public static final int TX_POWER_LEVEL_4 = 4;

     /**
      * The number of transmit power levels. Fixed by HAL definition.
      */
     public static int getNumTxPowerLevels() {
         return TX_POWER_LEVELS;
     }

     /** @hide */
     @IntDef(prefix = {"TX_POWER_LEVEL_"}, value = {
             TX_POWER_LEVEL_0,
             TX_POWER_LEVEL_1,
             TX_POWER_LEVEL_2,
             TX_POWER_LEVEL_3,
             TX_POWER_LEVEL_4,
     })
     @Retention(RetentionPolicy.SOURCE)
     public @interface TxPowerLevel {}

     private static final Range<Integer>[] TX_POWER_RANGES = new Range[] {
         new Range<>(Integer.MIN_VALUE, 0),
         new Range<>(0, 5),
         new Range<>(5, 15),
         new Range<>(15, 20),
         new Range<>(20, Integer.MAX_VALUE)
     };

     private long mTimestamp;
     private int mSleepTimeMs;
     private int mIdleTimeMs;
     private int[] mTotalTxTimeMs;
     private int mTotalRxTimeMs;
     private int mSizeOfSpecificInfo;
     private ActivityStatsTechSpecificInfo[] mActivityStatsTechSpecificInfo;

     /**
      * @hide
      */
     @TestApi
     public ModemActivityInfo(long timestamp, int sleepTimeMs, int idleTimeMs,
                         @NonNull int[] txTimeMs, int rxTimeMs) {
         Objects.requireNonNull(txTimeMs);
         if (txTimeMs.length != TX_POWER_LEVELS) {
             throw new IllegalArgumentException("txTimeMs must have length == TX_POWER_LEVELS");
         }
         mTimestamp = timestamp;
         mSleepTimeMs = sleepTimeMs;
         mIdleTimeMs = idleTimeMs;
         mTotalTxTimeMs = txTimeMs;
         mTotalRxTimeMs = rxTimeMs;

         mActivityStatsTechSpecificInfo = new ActivityStatsTechSpecificInfo[1];
         mSizeOfSpecificInfo = mActivityStatsTechSpecificInfo.length;
         mActivityStatsTechSpecificInfo[0] =
                 new ActivityStatsTechSpecificInfo(
                         AccessNetworkConstants.AccessNetworkType.UNKNOWN,
                         ServiceState.FREQUENCY_RANGE_UNKNOWN,
                         txTimeMs,
                         rxTimeMs);
     }

     /**
      * Provided for convenience in manipulation since the API exposes long values but internal
      * representations are ints.
      * @hide
      */
     public ModemActivityInfo(long timestamp, long sleepTimeMs, long idleTimeMs,
             @NonNull int[] txTimeMs, long rxTimeMs) {
         this(timestamp, (int) sleepTimeMs, (int) idleTimeMs, txTimeMs, (int) rxTimeMs);
     }

     /** @hide */
     public ModemActivityInfo(long timestamp, int sleepTimeMs, int idleTimeMs,
                         @NonNull ActivityStatsTechSpecificInfo[] activityStatsTechSpecificInfo) {
         mTimestamp = timestamp;
         mSleepTimeMs = sleepTimeMs;
         mIdleTimeMs = idleTimeMs;
         mActivityStatsTechSpecificInfo = activityStatsTechSpecificInfo;
         mSizeOfSpecificInfo = mActivityStatsTechSpecificInfo.length;
         mTotalTxTimeMs = new int[ModemActivityInfo.TX_POWER_LEVELS];
         for (int i = 0; i < getNumTxPowerLevels(); i++) {
             for (int j = 0; j < getSpecificInfoLength(); j++) {
                 mTotalTxTimeMs[i] = mTotalTxTimeMs[i]
                             + (int) mActivityStatsTechSpecificInfo[j].getTransmitTimeMillis(i);
             }
         }
         mTotalRxTimeMs = 0;
         for (int i = 0; i < getSpecificInfoLength(); i++) {
             mTotalRxTimeMs =
                     mTotalRxTimeMs + (int) mActivityStatsTechSpecificInfo[i].getReceiveTimeMillis();
         }
     }

     /**
      * Provided for convenience in manipulation since the API exposes long values but internal
      * representations are ints.
      * @hide
      */
     public ModemActivityInfo(long timestamp, long sleepTimeMs, long idleTimeMs,
                         @NonNull ActivityStatsTechSpecificInfo[] activityStatsTechSpecificInfo) {
         this(timestamp, (int) sleepTimeMs, (int) idleTimeMs, activityStatsTechSpecificInfo);
     }

     @Override
     public String toString() {
         return "ModemActivityInfo{"
             + " mTimestamp="
             + mTimestamp
             + " mSleepTimeMs="
             + mSleepTimeMs
             + " mIdleTimeMs="
             + mIdleTimeMs
             + " mActivityStatsTechSpecificInfo="
             + Arrays.toString(mActivityStatsTechSpecificInfo)
             + "}";
     }

     public int describeContents() {
         return 0;
     }

     public static final @android.annotation.NonNull Parcelable.Creator<ModemActivityInfo> CREATOR =
             new Parcelable.Creator<ModemActivityInfo>() {
         public ModemActivityInfo createFromParcel(@NonNull Parcel in) {
             long timestamp = in.readLong();
             int sleepTimeMs = in.readInt();
             int idleTimeMs = in.readInt();
             Parcelable[] tempSpecifiers =
                     in.createTypedArray(ActivityStatsTechSpecificInfo.CREATOR);
             ActivityStatsTechSpecificInfo[] activityStatsTechSpecificInfo;
             activityStatsTechSpecificInfo =
                     new ActivityStatsTechSpecificInfo[tempSpecifiers.length];
             for (int i = 0; i < tempSpecifiers.length; i++) {
                 activityStatsTechSpecificInfo[i] =
                                 (ActivityStatsTechSpecificInfo) tempSpecifiers[i];
                     }
             return new ModemActivityInfo(
                     timestamp, sleepTimeMs, idleTimeMs, activityStatsTechSpecificInfo);
         }

         public ModemActivityInfo[] newArray(int size) {
             return new ModemActivityInfo[size];
         }
     };

     /**
      * @param dest The Parcel in which the object should be written.
      * @param flags Additional flags about how the object should be written.
      */
     public void writeToParcel(@NonNull Parcel dest, int flags) {
         dest.writeLong(mTimestamp);
         dest.writeInt(mSleepTimeMs);
         dest.writeInt(mIdleTimeMs);
         dest.writeTypedArray(mActivityStatsTechSpecificInfo, flags);
     }

     /**
      * Gets the timestamp at which this modem activity info was recorded.
      *
      * @return The timestamp, as returned by {@link SystemClock#elapsedRealtime()}, when this {@link
      *     ModemActivityInfo} was recorded.
      */
     public @ElapsedRealtimeLong long getTimestampMillis() {
         return mTimestamp;
     }

     /** @hide */
     public void setTimestamp(long timestamp) {
         mTimestamp = timestamp;
     }

     /**
      * Gets the amount of time the modem spent transmitting at a certain power level.
      *
      * @param powerLevel The power level to query.
      * @return The amount of time, in milliseconds, that the modem spent transmitting at the given
      *     power level.
      */
     public @DurationMillisLong long getTransmitDurationMillisAtPowerLevel(
             @TxPowerLevel int powerLevel) {
         long txTimeMsAtPowerLevel = 0;
         for (int i = 0; i < getSpecificInfoLength(); i++) {
             txTimeMsAtPowerLevel +=
                     mActivityStatsTechSpecificInfo[i].getTransmitTimeMillis(powerLevel);
         }
         return txTimeMsAtPowerLevel;
     }

     /** @hide */
     public @DurationMillisLong long getTransmitDurationMillisAtPowerLevel(
             @TxPowerLevel int powerLevel, int rat) {
         for (int i = 0; i < getSpecificInfoLength(); i++) {
             if (mActivityStatsTechSpecificInfo[i].getRat() == rat) {
                 return mActivityStatsTechSpecificInfo[i].getTransmitTimeMillis(powerLevel);
             }
         }
         return 0;
     }

     /** @hide */
     public @DurationMillisLong long getTransmitDurationMillisAtPowerLevel(
             @TxPowerLevel int powerLevel, int rat, @FrequencyRange int freq) {
         for (int i = 0; i < getSpecificInfoLength(); i++) {
             if (mActivityStatsTechSpecificInfo[i].getRat() == rat
                     && mActivityStatsTechSpecificInfo[i].getFrequencyRange() == freq) {
                 return mActivityStatsTechSpecificInfo[i].getTransmitTimeMillis(powerLevel);
             }
         }
         return 0;
     }
     /**
      * Gets the range of transmit powers corresponding to a certain power level.
      *
      * @param powerLevel The power level to query
      * @return A {@link Range} object representing the range of intensities (in dBm) to which this
      * power level corresponds.
      */
     public @NonNull Range<Integer> getTransmitPowerRange(@TxPowerLevel int powerLevel) {
         return TX_POWER_RANGES[powerLevel];
     }

     /** @hide */
     public int getSpecificInfoRat(int index) {
         return mActivityStatsTechSpecificInfo[index].getRat();
     }

     /** @hide */
     public int getSpecificInfoFrequencyRange(int index) {
         return mActivityStatsTechSpecificInfo[index].getFrequencyRange();
     }
     /** @hide */
     public void setTransmitTimeMillis(int[] txTimeMs) {
         mTotalTxTimeMs = Arrays.copyOf(txTimeMs, TX_POWER_LEVELS);
     }
     /** @hide */
     public void setTransmitTimeMillis(int rat, int[] txTimeMs) {
         for (int i = 0; i < getSpecificInfoLength(); i++) {
             if (mActivityStatsTechSpecificInfo[i].getRat() == rat) {
                 mActivityStatsTechSpecificInfo[i].setTransmitTimeMillis(txTimeMs);
             }
         }
     }
     /** @hide */
     public void setTransmitTimeMillis(int rat, int freq, int[] txTimeMs) {
         for (int i = 0; i < getSpecificInfoLength(); i++) {
             if (mActivityStatsTechSpecificInfo[i].getRat() == rat
                     && mActivityStatsTechSpecificInfo[i].getFrequencyRange() == freq) {
                 mActivityStatsTechSpecificInfo[i].setTransmitTimeMillis(txTimeMs);
             }
         }
     }
     /**
      * @return The raw array of transmit power durations
      * @hide
      */
     @NonNull
     public int[] getTransmitTimeMillis() {
         return mTotalTxTimeMs;
     }

     /** @hide */
     public int[] getTransmitTimeMillis(@AccessNetworkConstants.RadioAccessNetworkType int rat) {
         for (int i = 0; i < mActivityStatsTechSpecificInfo.length; i++) {
             if (mActivityStatsTechSpecificInfo[i].getRat() == rat) {
                 return mActivityStatsTechSpecificInfo[i].getTransmitTimeMillis();
             }
         }
         return new int[5];
     }

     /** @hide */
     public int[] getTransmitTimeMillis(
             @AccessNetworkConstants.RadioAccessNetworkType int rat, @FrequencyRange int freq) {
         for (int i = 0; i < mActivityStatsTechSpecificInfo.length; i++) {
             if (mActivityStatsTechSpecificInfo[i].getRat() == rat
                     && mActivityStatsTechSpecificInfo[i].getFrequencyRange() == freq) {
                 return mActivityStatsTechSpecificInfo[i].getTransmitTimeMillis();
             }
         }
         return new int[5];
     }

     /**
      * Gets the amount of time (in milliseconds) when the modem is in a low power or sleep state.
      *
      * @return Time in milliseconds.
      */
     public @DurationMillisLong long getSleepTimeMillis() {
         return mSleepTimeMs;
     }

     /** @hide */
     public void setSleepTimeMillis(int sleepTimeMillis) {
         mSleepTimeMs = sleepTimeMillis;
     }

     /**
      * Provided for convenience, since the API surface needs to return longs but internal
      * representations are ints.
      *
      * @hide
      */
     public void setSleepTimeMillis(long sleepTimeMillis) {
         mSleepTimeMs = (int) sleepTimeMillis;
     }

     /**
      * Computes the difference between this instance of {@link ModemActivityInfo} and another
      * instance.
      *
      * This method should be used to compute the amount of activity that has happened between two
      * samples of modem activity taken at separate times. The sample passed in as an argument to
      * this method should be the one that's taken later in time (and therefore has more activity).
      * @param other The other instance of {@link ModemActivityInfo} to diff against.
      * @return An instance of {@link ModemActivityInfo} representing the difference in modem
      * activity.
      */
     public @NonNull ModemActivityInfo getDelta(@NonNull ModemActivityInfo other) {
         ActivityStatsTechSpecificInfo[] mDeltaSpecificInfo;
         mDeltaSpecificInfo = new ActivityStatsTechSpecificInfo[other.getSpecificInfoLength()];

         boolean matched;
         for (int i = 0; i < other.getSpecificInfoLength(); i++) {
             matched = false;
             for (int j = 0; j < getSpecificInfoLength(); j++) {
                 int rat = mActivityStatsTechSpecificInfo[j].getRat();
                 if (rat == other.mActivityStatsTechSpecificInfo[i].getRat() && !matched) {
                     if (mActivityStatsTechSpecificInfo[j].getRat()
                             == AccessNetworkConstants.AccessNetworkType.NGRAN) {
                         if (other.mActivityStatsTechSpecificInfo[i].getFrequencyRange()
                                 == mActivityStatsTechSpecificInfo[j].getFrequencyRange()) {
                             int freq = mActivityStatsTechSpecificInfo[j].getFrequencyRange();
                             int[] txTimeMs = new int[ModemActivityInfo.TX_POWER_LEVELS];
                             for (int lvl = 0; lvl < ModemActivityInfo.TX_POWER_LEVELS; lvl++) {
                                 txTimeMs[lvl] =
                                         (int) (other.getTransmitDurationMillisAtPowerLevel(
                                                             lvl, rat, freq)
                                                         - getTransmitDurationMillisAtPowerLevel(
                                                             lvl, rat, freq));
                             }
                             matched = true;
                             mDeltaSpecificInfo[i] =
                                     new ActivityStatsTechSpecificInfo(
                                             rat,
                                             freq,
                                             txTimeMs,
                                             (int) (other.getReceiveTimeMillis(rat, freq)
                                                         - getReceiveTimeMillis(rat, freq)));
                         }
                     } else {
                         int[] txTimeMs = new int[ModemActivityInfo.TX_POWER_LEVELS];
                         for (int lvl = 0; lvl < ModemActivityInfo.TX_POWER_LEVELS; lvl++) {
                             txTimeMs[lvl] =
                                     (int) (other.getTransmitDurationMillisAtPowerLevel(lvl, rat)
                                                 - getTransmitDurationMillisAtPowerLevel(lvl, rat));
                         }
                         matched = true;
                         mDeltaSpecificInfo[i] =
                                 new ActivityStatsTechSpecificInfo(
                                         rat,
                                         ServiceState.FREQUENCY_RANGE_UNKNOWN,
                                         txTimeMs,
                                         (int) (other.getReceiveTimeMillis(rat)
                                                      - getReceiveTimeMillis(rat)));
                     }
                 }
             }
             if (!matched) {
                 mDeltaSpecificInfo[i] = other.mActivityStatsTechSpecificInfo[i];
             }
         }
         return new ModemActivityInfo(
                 other.getTimestampMillis(),
                 other.getSleepTimeMillis() - getSleepTimeMillis(),
                 other.getIdleTimeMillis() - getIdleTimeMillis(),
                 mDeltaSpecificInfo);
     }

     /**
      * Gets the amount of time (in milliseconds) when the modem is awake but neither transmitting
      * nor receiving.
      *
      * @return Time in milliseconds.
      */
     public @DurationMillisLong long getIdleTimeMillis() {
         return mIdleTimeMs;
     }

     /** @hide */
     public void setIdleTimeMillis(int idleTimeMillis) {
         mIdleTimeMs = idleTimeMillis;
     }

     /**
      * Provided for convenience, since the API surface needs to return longs but internal
      * representations are ints.
      *
      * @hide
      */
     public void setIdleTimeMillis(long idleTimeMillis) {
         mIdleTimeMs = (int) idleTimeMillis;
     }

     /**
      * Gets the amount of time (in milliseconds) when the modem is awake and receiving data.
      *
      * @return Time in milliseconds.
      */
     public @DurationMillisLong long getReceiveTimeMillis() {
         return mTotalRxTimeMs;
     }

     /** @hide */
     public @DurationMillisLong long getReceiveTimeMillis(int rat) {
         for (int i = 0; i < mActivityStatsTechSpecificInfo.length; i++) {
             if (mActivityStatsTechSpecificInfo[i].getRat() == rat) {
                 return mActivityStatsTechSpecificInfo[i].getReceiveTimeMillis();
             }
         }
         return 0;
     }
     /** @hide */
     public @DurationMillisLong long getReceiveTimeMillis(int rat, int freq) {
         for (int i = 0; i < mActivityStatsTechSpecificInfo.length; i++) {
             if (mActivityStatsTechSpecificInfo[i].getRat() == rat
                     && mActivityStatsTechSpecificInfo[i].getFrequencyRange() == freq) {
                 return mActivityStatsTechSpecificInfo[i].getReceiveTimeMillis();
             }
         }
         return 0;
     }

     /** @hide */
     public void setReceiveTimeMillis(int rxTimeMillis) {
         mTotalRxTimeMs = rxTimeMillis;
     }

     /**
      * Provided for convenience, since the API surface needs to return longs but internal
      * representations are ints.
      *
      * @hide
      */
     public void setReceiveTimeMillis(long receiveTimeMillis) {
         mTotalRxTimeMs = (int) receiveTimeMillis;
     }

     /** @hide */
     public void setReceiveTimeMillis(int rat, long receiveTimeMillis) {
         for (int i = 0; i < mActivityStatsTechSpecificInfo.length; i++) {
             if (mActivityStatsTechSpecificInfo[i].getRat() == rat) {
                 mActivityStatsTechSpecificInfo[i].setReceiveTimeMillis(receiveTimeMillis);
             }
         }
     }

     /** @hide */
     public void setReceiveTimeMillis(int rat, int freq, long receiveTimeMillis) {
         for (int i = 0; i < mActivityStatsTechSpecificInfo.length; i++) {
             if (mActivityStatsTechSpecificInfo[i].getRat() == rat
                     && mActivityStatsTechSpecificInfo[i].getFrequencyRange() == freq) {
                 mActivityStatsTechSpecificInfo[i].setReceiveTimeMillis(receiveTimeMillis);
             }
         }
     }

     /** @hide */
     public int getSpecificInfoLength() {
         return mSizeOfSpecificInfo;
     }

     /**
      * Indicates if the modem has reported valid {@link ModemActivityInfo}.
      *
      * @return {@code true} if this {@link ModemActivityInfo} record is valid,
      * {@code false} otherwise.
      * @hide
      */
     @TestApi
     public boolean isValid() {
         if (mActivityStatsTechSpecificInfo == null) {
             return false;
         } else {
             boolean isTxPowerValid = true;
             boolean isRxPowerValid = true;
             for (int i = 0; i < getSpecificInfoLength(); i++) {
                 if (!mActivityStatsTechSpecificInfo[i].isTxPowerValid()) {
                     isTxPowerValid = false;
                 }
                 if (!mActivityStatsTechSpecificInfo[i].isRxPowerValid()) {
                     isRxPowerValid = false;
                 }
             }
             return isTxPowerValid
                     && isRxPowerValid
                     && ((getIdleTimeMillis() >= 0) && (getSleepTimeMillis() >= 0) && !isEmpty());
         }
     }

     /** @hide */
     @TestApi
     public boolean isEmpty() {
         boolean isTxPowerEmpty = false;
         boolean isRxPowerEmpty = false;
         for (int i = 0; i < getSpecificInfoLength(); i++) {
             if (mActivityStatsTechSpecificInfo[i].isTxPowerEmpty()) {
                 isTxPowerEmpty = true;
             }
             if (mActivityStatsTechSpecificInfo[i].isRxPowerEmpty()) {
                 isRxPowerEmpty = true;
             }
         }
         return isTxPowerEmpty
                 && ((getIdleTimeMillis() == 0) && (getSleepTimeMillis() == 0) && isRxPowerEmpty);
     }

     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
         if (o == null || getClass() != o.getClass()) return false;
         ModemActivityInfo that = (ModemActivityInfo) o;
         return mTimestamp == that.mTimestamp
                 && mSleepTimeMs == that.mSleepTimeMs
                 && mIdleTimeMs == that.mIdleTimeMs
                 && mSizeOfSpecificInfo == that.mSizeOfSpecificInfo
                 && Arrays.equals(
                         mActivityStatsTechSpecificInfo, that.mActivityStatsTechSpecificInfo);
     }

     @Override
     public int hashCode() {
         int result = Objects.hash(mTimestamp, mSleepTimeMs, mIdleTimeMs, mTotalRxTimeMs);
         result = 31 * result + Arrays.hashCode(mTotalTxTimeMs);
         return result;
     }
 }
	/*
	* Copyright (C) 2015 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.telephony;

	import android.annotation.DurationMillisLong;
	import android.annotation.ElapsedRealtimeLong;
	import android.annotation.IntDef;
	import android.annotation.NonNull;
	import android.annotation.SystemApi;
	import android.annotation.TestApi;
	import android.os.Parcel;
	import android.os.Parcelable;
	import android.os.SystemClock;
	import android.telephony.ServiceState.FrequencyRange;
	import android.util.Range;

	import java.lang.annotation.Retention;
	import java.lang.annotation.RetentionPolicy;
	import java.util.Arrays;
	import java.util.Objects;

	/**
	* Contains information about the modem's activity. May be useful for power stats reporting.
	* @hide
	*/
	@SystemApi
	public final class ModemActivityInfo implements Parcelable {
	private static final int TX_POWER_LEVELS = 5;

	/**
	* Corresponds to transmit power of less than 0dBm.
	*/
	public static final int TX_POWER_LEVEL_0 = 0;

	/**
	* Corresponds to transmit power between 0dBm and 5dBm.
	*/
	public static final int TX_POWER_LEVEL_1 = 1;

	/**
	* Corresponds to transmit power between 5dBm and 15dBm.
	*/
	public static final int TX_POWER_LEVEL_2 = 2;

	/**
	* Corresponds to transmit power between 15dBm and 20dBm.
	*/
	public static final int TX_POWER_LEVEL_3 = 3;

	/**
	* Corresponds to transmit power above 20dBm.
	*/
	public static final int TX_POWER_LEVEL_4 = 4;

	/**
	* The number of transmit power levels. Fixed by HAL definition.
	*/
	public static int getNumTxPowerLevels() {
	return TX_POWER_LEVELS;
	}

	/** @hide */
	@IntDef(prefix = {"TX_POWER_LEVEL_"}, value = {
	TX_POWER_LEVEL_0,
	TX_POWER_LEVEL_1,
	TX_POWER_LEVEL_2,
	TX_POWER_LEVEL_3,
	TX_POWER_LEVEL_4,
	})
	@Retention(RetentionPolicy.SOURCE)
	public @interface TxPowerLevel {}

	private static final Range<Integer>[] TX_POWER_RANGES = new Range[] {
	new Range<>(Integer.MIN_VALUE, 0),
	new Range<>(0, 5),
	new Range<>(5, 15),
	new Range<>(15, 20),
	new Range<>(20, Integer.MAX_VALUE)
	};

	private long mTimestamp;
	private int mSleepTimeMs;
	private int mIdleTimeMs;
	private int[] mTotalTxTimeMs;
	private int mTotalRxTimeMs;
	private int mSizeOfSpecificInfo;
	private ActivityStatsTechSpecificInfo[] mActivityStatsTechSpecificInfo;

	/**
	* @hide
	*/
	@TestApi
	public ModemActivityInfo(long timestamp, int sleepTimeMs, int idleTimeMs,
	@NonNull int[] txTimeMs, int rxTimeMs) {
	Objects.requireNonNull(txTimeMs);
	if (txTimeMs.length != TX_POWER_LEVELS) {
	throw new IllegalArgumentException("txTimeMs must have length == TX_POWER_LEVELS");
	}
	mTimestamp = timestamp;
	mSleepTimeMs = sleepTimeMs;
	mIdleTimeMs = idleTimeMs;
	mTotalTxTimeMs = txTimeMs;
	mTotalRxTimeMs = rxTimeMs;

	mActivityStatsTechSpecificInfo = new ActivityStatsTechSpecificInfo[1];
	mSizeOfSpecificInfo = mActivityStatsTechSpecificInfo.length;
	mActivityStatsTechSpecificInfo[0] =
	new ActivityStatsTechSpecificInfo(
	AccessNetworkConstants.AccessNetworkType.UNKNOWN,
	ServiceState.FREQUENCY_RANGE_UNKNOWN,
	txTimeMs,
	rxTimeMs);
	}

	/**
	* Provided for convenience in manipulation since the API exposes long values but internal
	* representations are ints.
	* @hide
	*/
	public ModemActivityInfo(long timestamp, long sleepTimeMs, long idleTimeMs,
	@NonNull int[] txTimeMs, long rxTimeMs) {
	this(timestamp, (int) sleepTimeMs, (int) idleTimeMs, txTimeMs, (int) rxTimeMs);
	}

	/** @hide */
	public ModemActivityInfo(long timestamp, int sleepTimeMs, int idleTimeMs,
	@NonNull ActivityStatsTechSpecificInfo[] activityStatsTechSpecificInfo) {
	mTimestamp = timestamp;
	mSleepTimeMs = sleepTimeMs;
	mIdleTimeMs = idleTimeMs;
	mActivityStatsTechSpecificInfo = activityStatsTechSpecificInfo;
	mSizeOfSpecificInfo = mActivityStatsTechSpecificInfo.length;
	mTotalTxTimeMs = new int[ModemActivityInfo.TX_POWER_LEVELS];
	for (int i = 0; i < getNumTxPowerLevels(); i++) {
	for (int j = 0; j < getSpecificInfoLength(); j++) {
	mTotalTxTimeMs[i] = mTotalTxTimeMs[i]
	+ (int) mActivityStatsTechSpecificInfo[j].getTransmitTimeMillis(i);
	}
	}
	mTotalRxTimeMs = 0;
	for (int i = 0; i < getSpecificInfoLength(); i++) {
	mTotalRxTimeMs =
	mTotalRxTimeMs + (int) mActivityStatsTechSpecificInfo[i].getReceiveTimeMillis();
	}
	}

	/**
	* Provided for convenience in manipulation since the API exposes long values but internal
	* representations are ints.
	* @hide
	*/
	public ModemActivityInfo(long timestamp, long sleepTimeMs, long idleTimeMs,
	@NonNull ActivityStatsTechSpecificInfo[] activityStatsTechSpecificInfo) {
	this(timestamp, (int) sleepTimeMs, (int) idleTimeMs, activityStatsTechSpecificInfo);
	}

	@Override
	public String toString() {
	return "ModemActivityInfo{"
	+ " mTimestamp="
	+ mTimestamp
	+ " mSleepTimeMs="
	+ mSleepTimeMs
	+ " mIdleTimeMs="
	+ mIdleTimeMs
	+ " mActivityStatsTechSpecificInfo="
	+ Arrays.toString(mActivityStatsTechSpecificInfo)
	+ "}";
	}

	public int describeContents() {
	return 0;
	}

	public static final @android.annotation.NonNull Parcelable.Creator<ModemActivityInfo> CREATOR =
	new Parcelable.Creator<ModemActivityInfo>() {
	public ModemActivityInfo createFromParcel(@NonNull Parcel in) {
	long timestamp = in.readLong();
	int sleepTimeMs = in.readInt();
	int idleTimeMs = in.readInt();
	Parcelable[] tempSpecifiers =
	in.createTypedArray(ActivityStatsTechSpecificInfo.CREATOR);
	ActivityStatsTechSpecificInfo[] activityStatsTechSpecificInfo;
	activityStatsTechSpecificInfo =
	new ActivityStatsTechSpecificInfo[tempSpecifiers.length];
	for (int i = 0; i < tempSpecifiers.length; i++) {
	activityStatsTechSpecificInfo[i] =
	(ActivityStatsTechSpecificInfo) tempSpecifiers[i];
	}
	return new ModemActivityInfo(
	timestamp, sleepTimeMs, idleTimeMs, activityStatsTechSpecificInfo);
	}

	public ModemActivityInfo[] newArray(int size) {
	return new ModemActivityInfo[size];
	}
	};

	/**
	* @param dest The Parcel in which the object should be written.
	* @param flags Additional flags about how the object should be written.
	*/
	public void writeToParcel(@NonNull Parcel dest, int flags) {
	dest.writeLong(mTimestamp);
	dest.writeInt(mSleepTimeMs);
	dest.writeInt(mIdleTimeMs);
	dest.writeTypedArray(mActivityStatsTechSpecificInfo, flags);
	}

	/**
	* Gets the timestamp at which this modem activity info was recorded.
	*
	* @return The timestamp, as returned by {@link SystemClock#elapsedRealtime()}, when this {@link
	* ModemActivityInfo} was recorded.
	*/
	public @ElapsedRealtimeLong long getTimestampMillis() {
	return mTimestamp;
	}

	/** @hide */
	public void setTimestamp(long timestamp) {
	mTimestamp = timestamp;
	}

	/**
	* Gets the amount of time the modem spent transmitting at a certain power level.
	*
	* @param powerLevel The power level to query.
	* @return The amount of time, in milliseconds, that the modem spent transmitting at the given
	* power level.
	*/
	public @DurationMillisLong long getTransmitDurationMillisAtPowerLevel(
	@TxPowerLevel int powerLevel) {
	long txTimeMsAtPowerLevel = 0;
	for (int i = 0; i < getSpecificInfoLength(); i++) {
	txTimeMsAtPowerLevel +=
	mActivityStatsTechSpecificInfo[i].getTransmitTimeMillis(powerLevel);
	}
	return txTimeMsAtPowerLevel;
	}

	/** @hide */
	public @DurationMillisLong long getTransmitDurationMillisAtPowerLevel(
	@TxPowerLevel int powerLevel, int rat) {
	for (int i = 0; i < getSpecificInfoLength(); i++) {
	if (mActivityStatsTechSpecificInfo[i].getRat() == rat) {
	return mActivityStatsTechSpecificInfo[i].getTransmitTimeMillis(powerLevel);
	}
	}
	return 0;
	}

	/** @hide */
	public @DurationMillisLong long getTransmitDurationMillisAtPowerLevel(
	@TxPowerLevel int powerLevel, int rat, @FrequencyRange int freq) {
	for (int i = 0; i < getSpecificInfoLength(); i++) {
	if (mActivityStatsTechSpecificInfo[i].getRat() == rat
	&& mActivityStatsTechSpecificInfo[i].getFrequencyRange() == freq) {
	return mActivityStatsTechSpecificInfo[i].getTransmitTimeMillis(powerLevel);
	}
	}
	return 0;
	}
	/**
	* Gets the range of transmit powers corresponding to a certain power level.
	*
	* @param powerLevel The power level to query
	* @return A {@link Range} object representing the range of intensities (in dBm) to which this
	* power level corresponds.
	*/
	public @NonNull Range<Integer> getTransmitPowerRange(@TxPowerLevel int powerLevel) {
	return TX_POWER_RANGES[powerLevel];
	}

	/** @hide */
	public int getSpecificInfoRat(int index) {
	return mActivityStatsTechSpecificInfo[index].getRat();
	}

	/** @hide */
	public int getSpecificInfoFrequencyRange(int index) {
	return mActivityStatsTechSpecificInfo[index].getFrequencyRange();
	}
	/** @hide */
	public void setTransmitTimeMillis(int[] txTimeMs) {
	mTotalTxTimeMs = Arrays.copyOf(txTimeMs, TX_POWER_LEVELS);
	}
	/** @hide */
	public void setTransmitTimeMillis(int rat, int[] txTimeMs) {
	for (int i = 0; i < getSpecificInfoLength(); i++) {
	if (mActivityStatsTechSpecificInfo[i].getRat() == rat) {
	mActivityStatsTechSpecificInfo[i].setTransmitTimeMillis(txTimeMs);
	}
	}
	}
	/** @hide */
	public void setTransmitTimeMillis(int rat, int freq, int[] txTimeMs) {
	for (int i = 0; i < getSpecificInfoLength(); i++) {
	if (mActivityStatsTechSpecificInfo[i].getRat() == rat
	&& mActivityStatsTechSpecificInfo[i].getFrequencyRange() == freq) {
	mActivityStatsTechSpecificInfo[i].setTransmitTimeMillis(txTimeMs);
	}
	}
	}
	/**
	* @return The raw array of transmit power durations
	* @hide
	*/
	@NonNull
	public int[] getTransmitTimeMillis() {
	return mTotalTxTimeMs;
	}

	/** @hide */
	public int[] getTransmitTimeMillis(@AccessNetworkConstants.RadioAccessNetworkType int rat) {
	for (int i = 0; i < mActivityStatsTechSpecificInfo.length; i++) {
	if (mActivityStatsTechSpecificInfo[i].getRat() == rat) {
	return mActivityStatsTechSpecificInfo[i].getTransmitTimeMillis();
	}
	}
	return new int[5];
	}

	/** @hide */
	public int[] getTransmitTimeMillis(
	@AccessNetworkConstants.RadioAccessNetworkType int rat, @FrequencyRange int freq) {
	for (int i = 0; i < mActivityStatsTechSpecificInfo.length; i++) {
	if (mActivityStatsTechSpecificInfo[i].getRat() == rat
	&& mActivityStatsTechSpecificInfo[i].getFrequencyRange() == freq) {
	return mActivityStatsTechSpecificInfo[i].getTransmitTimeMillis();
	}
	}
	return new int[5];
	}

	/**
	* Gets the amount of time (in milliseconds) when the modem is in a low power or sleep state.
	*
	* @return Time in milliseconds.
	*/
	public @DurationMillisLong long getSleepTimeMillis() {
	return mSleepTimeMs;
	}

	/** @hide */
	public void setSleepTimeMillis(int sleepTimeMillis) {
	mSleepTimeMs = sleepTimeMillis;
	}

	/**
	* Provided for convenience, since the API surface needs to return longs but internal
	* representations are ints.
	*
	* @hide
	*/
	public void setSleepTimeMillis(long sleepTimeMillis) {
	mSleepTimeMs = (int) sleepTimeMillis;
	}

	/**
	* Computes the difference between this instance of {@link ModemActivityInfo} and another
	* instance.
	*
	* This method should be used to compute the amount of activity that has happened between two
	* samples of modem activity taken at separate times. The sample passed in as an argument to
	* this method should be the one that's taken later in time (and therefore has more activity).
	* @param other The other instance of {@link ModemActivityInfo} to diff against.
	* @return An instance of {@link ModemActivityInfo} representing the difference in modem
	* activity.
	*/
	public @NonNull ModemActivityInfo getDelta(@NonNull ModemActivityInfo other) {
	ActivityStatsTechSpecificInfo[] mDeltaSpecificInfo;
	mDeltaSpecificInfo = new ActivityStatsTechSpecificInfo[other.getSpecificInfoLength()];

	boolean matched;
	for (int i = 0; i < other.getSpecificInfoLength(); i++) {
	matched = false;
	for (int j = 0; j < getSpecificInfoLength(); j++) {
	int rat = mActivityStatsTechSpecificInfo[j].getRat();
	if (rat == other.mActivityStatsTechSpecificInfo[i].getRat() && !matched) {
	if (mActivityStatsTechSpecificInfo[j].getRat()
	== AccessNetworkConstants.AccessNetworkType.NGRAN) {
	if (other.mActivityStatsTechSpecificInfo[i].getFrequencyRange()
	== mActivityStatsTechSpecificInfo[j].getFrequencyRange()) {
	int freq = mActivityStatsTechSpecificInfo[j].getFrequencyRange();
	int[] txTimeMs = new int[ModemActivityInfo.TX_POWER_LEVELS];
	for (int lvl = 0; lvl < ModemActivityInfo.TX_POWER_LEVELS; lvl++) {
	txTimeMs[lvl] =
	(int) (other.getTransmitDurationMillisAtPowerLevel(
	lvl, rat, freq)
	- getTransmitDurationMillisAtPowerLevel(
	lvl, rat, freq));
	}
	matched = true;
	mDeltaSpecificInfo[i] =
	new ActivityStatsTechSpecificInfo(
	rat,
	freq,
	txTimeMs,
	(int) (other.getReceiveTimeMillis(rat, freq)
	- getReceiveTimeMillis(rat, freq)));
	}
	} else {
	int[] txTimeMs = new int[ModemActivityInfo.TX_POWER_LEVELS];
	for (int lvl = 0; lvl < ModemActivityInfo.TX_POWER_LEVELS; lvl++) {
	txTimeMs[lvl] =
	(int) (other.getTransmitDurationMillisAtPowerLevel(lvl, rat)
	- getTransmitDurationMillisAtPowerLevel(lvl, rat));
	}
	matched = true;
	mDeltaSpecificInfo[i] =
	new ActivityStatsTechSpecificInfo(
	rat,
	ServiceState.FREQUENCY_RANGE_UNKNOWN,
	txTimeMs,
	(int) (other.getReceiveTimeMillis(rat)
	- getReceiveTimeMillis(rat)));
	}
	}
	}
	if (!matched) {
	mDeltaSpecificInfo[i] = other.mActivityStatsTechSpecificInfo[i];
	}
	}
	return new ModemActivityInfo(
	other.getTimestampMillis(),
	other.getSleepTimeMillis() - getSleepTimeMillis(),
	other.getIdleTimeMillis() - getIdleTimeMillis(),
	mDeltaSpecificInfo);
	}

	/**
	* Gets the amount of time (in milliseconds) when the modem is awake but neither transmitting
	* nor receiving.
	*
	* @return Time in milliseconds.
	*/
	public @DurationMillisLong long getIdleTimeMillis() {
	return mIdleTimeMs;
	}

	/** @hide */
	public void setIdleTimeMillis(int idleTimeMillis) {
	mIdleTimeMs = idleTimeMillis;
	}

	/**
	* Provided for convenience, since the API surface needs to return longs but internal
	* representations are ints.
	*
	* @hide
	*/
	public void setIdleTimeMillis(long idleTimeMillis) {
	mIdleTimeMs = (int) idleTimeMillis;
	}

	/**
	* Gets the amount of time (in milliseconds) when the modem is awake and receiving data.
	*
	* @return Time in milliseconds.
	*/
	public @DurationMillisLong long getReceiveTimeMillis() {
	return mTotalRxTimeMs;
	}

	/** @hide */
	public @DurationMillisLong long getReceiveTimeMillis(int rat) {
	for (int i = 0; i < mActivityStatsTechSpecificInfo.length; i++) {
	if (mActivityStatsTechSpecificInfo[i].getRat() == rat) {
	return mActivityStatsTechSpecificInfo[i].getReceiveTimeMillis();
	}
	}
	return 0;
	}
	/** @hide */
	public @DurationMillisLong long getReceiveTimeMillis(int rat, int freq) {
	for (int i = 0; i < mActivityStatsTechSpecificInfo.length; i++) {
	if (mActivityStatsTechSpecificInfo[i].getRat() == rat
	&& mActivityStatsTechSpecificInfo[i].getFrequencyRange() == freq) {
	return mActivityStatsTechSpecificInfo[i].getReceiveTimeMillis();
	}
	}
	return 0;
	}

	/** @hide */
	public void setReceiveTimeMillis(int rxTimeMillis) {
	mTotalRxTimeMs = rxTimeMillis;
	}

	/**
	* Provided for convenience, since the API surface needs to return longs but internal
	* representations are ints.
	*
	* @hide
	*/
	public void setReceiveTimeMillis(long receiveTimeMillis) {
	mTotalRxTimeMs = (int) receiveTimeMillis;
	}

	/** @hide */
	public void setReceiveTimeMillis(int rat, long receiveTimeMillis) {
	for (int i = 0; i < mActivityStatsTechSpecificInfo.length; i++) {
	if (mActivityStatsTechSpecificInfo[i].getRat() == rat) {
	mActivityStatsTechSpecificInfo[i].setReceiveTimeMillis(receiveTimeMillis);
	}
	}
	}

	/** @hide */
	public void setReceiveTimeMillis(int rat, int freq, long receiveTimeMillis) {
	for (int i = 0; i < mActivityStatsTechSpecificInfo.length; i++) {
	if (mActivityStatsTechSpecificInfo[i].getRat() == rat
	&& mActivityStatsTechSpecificInfo[i].getFrequencyRange() == freq) {
	mActivityStatsTechSpecificInfo[i].setReceiveTimeMillis(receiveTimeMillis);
	}
	}
	}

	/** @hide */
	public int getSpecificInfoLength() {
	return mSizeOfSpecificInfo;
	}

	/**
	* Indicates if the modem has reported valid {@link ModemActivityInfo}.
	*
	* @return {@code true} if this {@link ModemActivityInfo} record is valid,
	* {@code false} otherwise.
	* @hide
	*/
	@TestApi
	public boolean isValid() {
	if (mActivityStatsTechSpecificInfo == null) {
	return false;
	} else {
	boolean isTxPowerValid = true;
	boolean isRxPowerValid = true;
	for (int i = 0; i < getSpecificInfoLength(); i++) {
	if (!mActivityStatsTechSpecificInfo[i].isTxPowerValid()) {
	isTxPowerValid = false;
	}
	if (!mActivityStatsTechSpecificInfo[i].isRxPowerValid()) {
	isRxPowerValid = false;
	}
	}
	return isTxPowerValid
	&& isRxPowerValid
	&& ((getIdleTimeMillis() >= 0) && (getSleepTimeMillis() >= 0) && !isEmpty());
	}
	}

	/** @hide */
	@TestApi
	public boolean isEmpty() {
	boolean isTxPowerEmpty = false;
	boolean isRxPowerEmpty = false;
	for (int i = 0; i < getSpecificInfoLength(); i++) {
	if (mActivityStatsTechSpecificInfo[i].isTxPowerEmpty()) {
	isTxPowerEmpty = true;
	}
	if (mActivityStatsTechSpecificInfo[i].isRxPowerEmpty()) {
	isRxPowerEmpty = true;
	}
	}
	return isTxPowerEmpty
	&& ((getIdleTimeMillis() == 0) && (getSleepTimeMillis() == 0) && isRxPowerEmpty);
	}

	@Override
	public boolean equals(Object o) {
	if (this == o) return true;
	if (o == null \|\| getClass() != o.getClass()) return false;
	ModemActivityInfo that = (ModemActivityInfo) o;
	return mTimestamp == that.mTimestamp
	&& mSleepTimeMs == that.mSleepTimeMs
	&& mIdleTimeMs == that.mIdleTimeMs
	&& mSizeOfSpecificInfo == that.mSizeOfSpecificInfo
	&& Arrays.equals(
	mActivityStatsTechSpecificInfo, that.mActivityStatsTechSpecificInfo);
	}

	@Override
	public int hashCode() {
	int result = Objects.hash(mTimestamp, mSleepTimeMs, mIdleTimeMs, mTotalRxTimeMs);
	result = 31 * result + Arrays.hashCode(mTotalTxTimeMs);
	return result;
	}
	}