Update GPS HAL raw measurements support. (2102dd72) · Commits · e / os / android_frameworks_base

location/java/android/location/GpsClock.java

+210 −80

Original line number	Diff line number	Diff line
		@@ -18,6 +18,7 @@ package android.location;

		import android.os.Parcel;
		import android.os.Parcelable;
		import android.util.Log;

		/**
		* A class containing a GPS clock timestamp.
		@@ -26,44 +27,65 @@ import android.os.Parcelable;
		* @hide
		*/
		public class GpsClock implements Parcelable {
		// mandatory parameters
		private long mTimeInNs;
		private static final String TAG = "GpsClock";

		// The following enumerations must be in sync with the values declared in gps.h

		/**
		* The type of the time stored is not available or it is unknown.
		*/
		public static final byte TYPE_UNKNOWN = 0;

		/**
		* The source of the time value reported by this class is the 'Local Hardware Clock'.
		*/
		public static final byte TYPE_LOCAL_HW_TIME = 1;

		/**
		* The source of the time value reported by this class is the 'GPS time' derived from
		* satellites (epoch = Jan 6, 1980).
		*/
		public static final byte TYPE_GPS_TIME = 2;

		// optional parameters
		private boolean mHasLeapSecond;
		private static final short HAS_NO_FLAGS = 0;
		private static final short HAS_LEAP_SECOND = (1<<0);
		private static final short HAS_TIME_UNCERTAINTY = (1<<1);
		private static final short HAS_FULL_BIAS = (1<<2);
		private static final short HAS_BIAS = (1<<3);
		private static final short HAS_BIAS_UNCERTAINTY = (1<<4);
		private static final short HAS_DRIFT = (1<<5);
		private static final short HAS_DRIFT_UNCERTAINTY = (1<<6);

		// End enumerations in sync with gps.h

		private short mFlags;
		private short mLeapSecond;
		private boolean mHasTimeUncertaintyInNs;
		private byte mType;
		private long mTimeInNs;
		private double mTimeUncertaintyInNs;
		private boolean mHasBiasInNs;
		private long mFullBiasInNs;
		private double mBiasInNs;
		private boolean mHasBiasUncertaintyInNs;
		private double mBiasUncertaintyInNs;
		private boolean mHasDriftInNsPerSec;
		private double mDriftInNsPerSec;
		private boolean mHasDriftUncertaintyInNsPerSec;
		private double mDriftUncertaintyInNsPerSec;

		GpsClock() {
		reset();
		initialize();
		}

		/**
		* Sets all contents to the values stored in the provided object.
		*/
		public void set(GpsClock clock) {
		mTimeInNs = clock.mTimeInNs;

		mHasLeapSecond = clock.mHasLeapSecond;
		mFlags = clock.mFlags;
		mLeapSecond = clock.mLeapSecond;
		mHasTimeUncertaintyInNs = clock.mHasTimeUncertaintyInNs;
		mType = clock.mType;
		mTimeInNs = clock.mTimeInNs;
		mTimeUncertaintyInNs = clock.mTimeUncertaintyInNs;
		mHasBiasInNs = clock.mHasBiasInNs;
		mFullBiasInNs = clock.mFullBiasInNs;
		mBiasInNs = clock.mBiasInNs;
		mHasBiasUncertaintyInNs = clock.mHasBiasUncertaintyInNs;
		mBiasUncertaintyInNs = clock.mBiasUncertaintyInNs;
		mHasDriftInNsPerSec = clock.mHasDriftInNsPerSec;
		mDriftInNsPerSec = clock.mDriftInNsPerSec;
		mHasDriftUncertaintyInNsPerSec = clock.mHasDriftUncertaintyInNsPerSec;
		mDriftUncertaintyInNsPerSec = clock.mDriftUncertaintyInNsPerSec;
		}

		@@ -71,25 +93,61 @@ public class GpsClock implements Parcelable {
		* Resets all the contents to its original state.
		*/
		public void reset() {
		mTimeInNs = Long.MIN_VALUE;
		initialize();
		}

		resetLeapSecond();
		resetTimeUncertaintyInNs();
		resetBiasInNs();
		resetBiasUncertaintyInNs();
		resetDriftInNsPerSec();
		resetDriftUncertaintyInNsPerSec();
		/**
		* Gets the type of time reported by {@link #getTimeInNs()}.
		*/
		public byte getType() {
		return mType;
		}

		/**
		* Sets the type of time reported.
		*/
		public void setType(byte value) {
		switch (value) {
		case TYPE_UNKNOWN:
		case TYPE_GPS_TIME:
		case TYPE_LOCAL_HW_TIME:
		mType = value;
		break;
		default:
		Log.d(TAG, "Sanitizing invalid 'type': " + value);
		mType = TYPE_UNKNOWN;
		break;
		}
		}

		/**
		* Gets a string representation of the 'type'.
		* For internal and logging use only.
		*/
		private String getTypeString() {
		switch (mType) {
		case TYPE_UNKNOWN:
		return "Unknown";
		case TYPE_GPS_TIME:
		return "GpsTime";
		case TYPE_LOCAL_HW_TIME:
		return "LocalHwClock";
		default:
		return "<Invalid>";
		}
		}

		/**
		* Returns true if {@link #getLeapSecond()} is available, false otherwise.
		*/
		public boolean hasLeapSecond() {
		return mHasLeapSecond;
		return isFlagSet(HAS_LEAP_SECOND);
		}

		/**
		* Gets the leap second associated with the clock's time.
		* The sign of the value is defined by the following equation:
		* utc_time_ns = time_ns + (full_bias_ns + bias_ns) - leap_second * 1,000,000,000
		*
		* The value is only available if {@link #hasLeapSecond()} is true.
		*/
		@@ -101,7 +159,7 @@ public class GpsClock implements Parcelable {
		* Sets the leap second associated with the clock's time.
		*/
		public void setLeapSecond(short leapSecond) {
		mHasLeapSecond = true;
		setFlag(HAS_LEAP_SECOND);
		mLeapSecond = leapSecond;
		}

		@@ -109,13 +167,25 @@ public class GpsClock implements Parcelable {
		* Resets the leap second associated with the clock's time.
		*/
		public void resetLeapSecond() {
		mHasLeapSecond = false;
		resetFlag(HAS_LEAP_SECOND);
		mLeapSecond = Short.MIN_VALUE;
		}

		/**
		* Gets the GPS clock Time in nanoseconds; it represents the uncorrected receiver's GPS time
		* since 0000Z, January 6, 1980; this is, including {@link #getBiasInNs()}.
		* Gets the GPS receiver internal clock value in nanoseconds.
		* This can be either the 'local hardware clock' value ({@link #TYPE_LOCAL_HW_TIME}), or the
		* current GPS time derived inside GPS receiver ({@link #TYPE_GPS_TIME}).
		* {@link #getType()} defines the time reported.
		*
		* For 'local hardware clock' this value is expected to be monotonically increasing during the
		* reporting session. The real GPS time can be derived by compensating
		* {@link #getFullBiasInNs()} (when it is available) from this value.
		*
		* For 'GPS time' this value is expected to be the best estimation of current GPS time that GPS
		* receiver can achieve. {@link #getTimeUncertaintyInNs()} should be available when GPS time is
		* specified.
		*
		* Sub-nanosecond accuracy can be provided by means of {@link #getBiasInNs()}.
		* The reported time includes {@link #getTimeUncertaintyInNs()}.
		*/
		public long getTimeInNs() {
		@@ -123,7 +193,7 @@ public class GpsClock implements Parcelable {
		}

		/**
		* Sets the GPS clock Time in nanoseconds.
		* Sets the GPS receiver internal clock in nanoseconds.
		*/
		public void setTimeInNs(long timeInNs) {
		mTimeInNs = timeInNs;
		@@ -133,11 +203,12 @@ public class GpsClock implements Parcelable {
		* Returns true if {@link #getTimeUncertaintyInNs()} is available, false otherwise.
		*/
		public boolean hasTimeUncertaintyInNs() {
		return mHasTimeUncertaintyInNs;
		return isFlagSet(HAS_TIME_UNCERTAINTY);
		}

		/**
		* Gets the clock's time Uncertainty (1-Sigma) in nanoseconds.
		* The uncertainty is represented as an absolute (single sided) value.
		*
		* The value is only available if {@link #hasTimeUncertaintyInNs()} is true.
		*/
		@@ -149,7 +220,7 @@ public class GpsClock implements Parcelable {
		* Sets the clock's Time Uncertainty (1-Sigma) in nanoseconds.
		*/
		public void setTimeUncertaintyInNs(double timeUncertaintyInNs) {
		mHasTimeUncertaintyInNs = true;
		setFlag(HAS_TIME_UNCERTAINTY);
		mTimeUncertaintyInNs = timeUncertaintyInNs;
		}

		@@ -157,34 +228,73 @@ public class GpsClock implements Parcelable {
		* Resets the clock's Time Uncertainty (1-Sigma) in nanoseconds.
		*/
		public void resetTimeUncertaintyInNs() {
		mHasTimeUncertaintyInNs = false;
		resetFlag(HAS_TIME_UNCERTAINTY);
		mTimeUncertaintyInNs = Double.NaN;
		}

		/**
		* Returns true if {@link @getFullBiasInNs()} is available, false otherwise.
		*/
		public boolean hasFullBiasInNs() {
		return isFlagSet(HAS_FULL_BIAS);
		}

		/**
		* Gets the difference between hardware clock ({@link #getTimeInNs()}) inside GPS receiver and
		* the true GPS time since 0000Z, January 6, 1980, in nanoseconds.
		*
		* This value is available if {@link #TYPE_LOCAL_HW_TIME} is set, and GPS receiver has solved
		* the clock for GPS time.
		* {@link #getBiasUncertaintyInNs()} should be used for quality check.
		*
		* The sign of the value is defined by the following equation:
		* true time (GPS time) = time_ns + (full_bias_ns + bias_ns)
		*
		* The reported full bias includes {@link #getBiasUncertaintyInNs()}.
		* The value is onl available if {@link #hasFullBiasInNs()} is true.
		*/
		public long getFullBiasInNs() {
		return mFullBiasInNs;
		}

		/**
		* Sets the full bias in nanoseconds.
		*/
		public void setFullBiasInNs(long value) {
		setFlag(HAS_FULL_BIAS);
		mFullBiasInNs = value;
		}

		/**
		* Resets the full bias in nanoseconds.
		*/
		public void resetFullBiasInNs() {
		resetFlag(HAS_FULL_BIAS);
		mFullBiasInNs = Long.MIN_VALUE;
		}

		/**
		* Returns true if {@link #getBiasInNs()} is available, false otherwise.
		*/
		public boolean hasBiasInNs() {
		return mHasBiasInNs;
		return isFlagSet(HAS_BIAS);
		}

		/**
		* Gets the clock's Bias in nanoseconds.
		* The sign of the value (if available), is defined by the following equation:
		* true time = time - bias.
		* Gets the clock's sub-nanosecond bias.
		* The reported bias includes {@link #getBiasUncertaintyInNs()}.
		*
		* The value is only available if {@link #hasBiasInNs()} is true.
		*/
		public Double getBiasInNs() {
		public double getBiasInNs() {
		return mBiasInNs;
		}

		/**
		* Sets the clock's Bias in nanoseconds.
		* Sets the sub-nanosecond bias.
		*/
		public void setBiasInNs(double biasInNs) {
		mHasBiasInNs = true;
		setFlag(HAS_BIAS);
		mBiasInNs = biasInNs;
		}

		@@ -192,7 +302,7 @@ public class GpsClock implements Parcelable {
		* Resets the clock's Bias in nanoseconds.
		*/
		public void resetBiasInNs() {
		mHasBiasInNs = false;
		resetFlag(HAS_BIAS);
		mBiasInNs = Double.NaN;
		}

		@@ -200,7 +310,7 @@ public class GpsClock implements Parcelable {
		* Returns true if {@link #getBiasUncertaintyInNs()} is available, false otherwise.
		*/
		public boolean hasBiasUncertaintyInNs() {
		return mHasBiasUncertaintyInNs;
		return isFlagSet(HAS_BIAS_UNCERTAINTY);
		}

		/**
		@@ -216,7 +326,7 @@ public class GpsClock implements Parcelable {
		* Sets the clock's Bias Uncertainty (1-Sigma) in nanoseconds.
		*/
		public void setBiasUncertaintyInNs(double biasUncertaintyInNs) {
		mHasBiasUncertaintyInNs = true;
		setFlag(HAS_BIAS_UNCERTAINTY);
		mBiasUncertaintyInNs = biasUncertaintyInNs;
		}

		@@ -224,7 +334,7 @@ public class GpsClock implements Parcelable {
		* Resets the clock's Bias Uncertainty (1-Sigma) in nanoseconds.
		*/
		public void resetBiasUncertaintyInNs() {
		mHasBiasUncertaintyInNs = false;
		resetFlag(HAS_BIAS_UNCERTAINTY);
		mBiasUncertaintyInNs = Double.NaN;
		}

		@@ -232,7 +342,7 @@ public class GpsClock implements Parcelable {
		* Returns true if {@link #getDriftInNsPerSec()} is available, false otherwise.
		*/
		public boolean hasDriftInNsPerSec() {
		return mHasDriftInNsPerSec;
		return isFlagSet(HAS_DRIFT);
		}

		/**
		@@ -250,7 +360,7 @@ public class GpsClock implements Parcelable {
		* Sets the clock's Drift in nanoseconds per second.
		*/
		public void setDriftInNsPerSec(double driftInNsPerSec) {
		mHasDriftInNsPerSec = true;
		setFlag(HAS_DRIFT);
		mDriftInNsPerSec = driftInNsPerSec;
		}

		@@ -258,7 +368,7 @@ public class GpsClock implements Parcelable {
		* Resets the clock's Drift in nanoseconds per second.
		*/
		public void resetDriftInNsPerSec() {
		mHasDriftInNsPerSec = false;
		resetFlag(HAS_DRIFT);
		mDriftInNsPerSec = Double.NaN;
		}

		@@ -266,7 +376,7 @@ public class GpsClock implements Parcelable {
		* Returns true if {@link #getDriftUncertaintyInNsPerSec()} is available, false otherwise.
		*/
		public boolean hasDriftUncertaintyInNsPerSec() {
		return mHasDriftUncertaintyInNsPerSec;
		return isFlagSet(HAS_DRIFT_UNCERTAINTY);
		}

		/**
		@@ -282,7 +392,7 @@ public class GpsClock implements Parcelable {
		* Sets the clock's Drift Uncertainty (1-Sigma) in nanoseconds per second.
		*/
		public void setDriftUncertaintyInNsPerSec(double driftUncertaintyInNsPerSec) {
		mHasDriftUncertaintyInNsPerSec = true;
		setFlag(HAS_DRIFT_UNCERTAINTY);
		mDriftUncertaintyInNsPerSec = driftUncertaintyInNsPerSec;
		}

		@@ -290,7 +400,7 @@ public class GpsClock implements Parcelable {
		* Resets the clock's Drift Uncertainty (1-Sigma) in nanoseconds per second.
		*/
		public void resetDriftUncertaintyInNsPerSec() {
		mHasDriftUncertaintyInNsPerSec = false;
		resetFlag(HAS_DRIFT_UNCERTAINTY);
		mDriftUncertaintyInNsPerSec = Double.NaN;
		}

		@@ -298,19 +408,16 @@ public class GpsClock implements Parcelable {
		@Override
		public GpsClock createFromParcel(Parcel parcel) {
		GpsClock gpsClock = new GpsClock();
		gpsClock.mTimeInNs = parcel.readLong();

		gpsClock.mHasLeapSecond = parcel.readInt() != 0;
		gpsClock.mFlags = (short) parcel.readInt();
		gpsClock.mLeapSecond = (short) parcel.readInt();
		gpsClock.mHasTimeUncertaintyInNs = parcel.readInt() != 0;
		gpsClock.mType = parcel.readByte();
		gpsClock.mTimeInNs = parcel.readLong();
		gpsClock.mTimeUncertaintyInNs = parcel.readDouble();
		gpsClock.mHasBiasInNs = parcel.readInt() != 0;
		gpsClock.mFullBiasInNs = parcel.readLong();
		gpsClock.mBiasInNs = parcel.readDouble();
		gpsClock.mHasBiasUncertaintyInNs = parcel.readInt() != 0;
		gpsClock.mBiasUncertaintyInNs = parcel.readDouble();
		gpsClock.mHasDriftInNsPerSec = parcel.readInt() != 0;
		gpsClock.mDriftInNsPerSec = parcel.readDouble();
		gpsClock.mHasDriftUncertaintyInNsPerSec = parcel.readInt() != 0;
		gpsClock.mDriftUncertaintyInNsPerSec = parcel.readDouble();

		return gpsClock;
		@@ -323,19 +430,15 @@ public class GpsClock implements Parcelable {
		};

		public void writeToParcel(Parcel parcel, int flags) {
		parcel.writeLong(mTimeInNs);

		parcel.writeInt(mHasLeapSecond ? 1 : 0);
		parcel.writeInt(mFlags);
		parcel.writeInt(mLeapSecond);
		parcel.writeInt(mHasTimeUncertaintyInNs ? 1 : 0);
		parcel.writeByte(mType);
		parcel.writeLong(mTimeInNs);
		parcel.writeDouble(mTimeUncertaintyInNs);
		parcel.writeInt(mHasBiasInNs ? 1 : 0);
		parcel.writeLong(mFullBiasInNs);
		parcel.writeDouble(mBiasInNs);
		parcel.writeInt(mHasBiasUncertaintyInNs ? 1 : 0);
		parcel.writeDouble(mBiasUncertaintyInNs);
		parcel.writeInt(mHasDriftInNsPerSec ? 1 : 0);
		parcel.writeDouble(mDriftInNsPerSec);
		parcel.writeInt(mHasDriftUncertaintyInNsPerSec ? 1 : 0);
		parcel.writeDouble(mDriftUncertaintyInNsPerSec);
		}

		@@ -346,37 +449,64 @@ public class GpsClock implements Parcelable {

		@Override
		public String toString() {
		final String format = " %-15s = %-25s %-26s = %s\n";
		final String format = " %-15s = %s\n";
		final String formatWithUncertainty = " %-15s = %-25s %-26s = %s\n";
		StringBuilder builder = new StringBuilder("GpsClock:\n");

		builder.append(String.format(
		format,
		"LeapSecond",
		mHasLeapSecond ? mLeapSecond : null,
		"",
		""));
		builder.append(String.format(format, "Type", getTypeString()));

		builder.append(String.format(format, "LeapSecond", hasLeapSecond() ? mLeapSecond : null));

		builder.append(String.format(
		format,
		formatWithUncertainty,
		"TimeInNs",
		mTimeInNs,
		"TimeUncertaintyInNs",
		mHasTimeUncertaintyInNs ? mTimeUncertaintyInNs : null));
		hasTimeUncertaintyInNs() ? mTimeUncertaintyInNs : null));

		builder.append(String.format(
		format,
		"FullBiasInNs",
		hasFullBiasInNs() ? mFullBiasInNs : null));

		builder.append(String.format(
		formatWithUncertainty,
		"BiasInNs",
		mHasBiasInNs ? mBiasInNs : null,
		hasBiasInNs() ? mBiasInNs : null,
		"BiasUncertaintyInNs",
		mHasBiasUncertaintyInNs ? mBiasUncertaintyInNs : null));
		hasBiasUncertaintyInNs() ? mBiasUncertaintyInNs : null));

		builder.append(String.format(
		format,
		formatWithUncertainty,
		"DriftInNsPerSec",
		mHasDriftInNsPerSec ? mDriftInNsPerSec : null,
		hasDriftInNsPerSec() ? mDriftInNsPerSec : null,
		"DriftUncertaintyInNsPerSec",
		mHasDriftUncertaintyInNsPerSec ? mDriftUncertaintyInNsPerSec : null));
		hasDriftUncertaintyInNsPerSec() ? mDriftUncertaintyInNsPerSec : null));

		return builder.toString();
		}

		private void initialize() {
		mFlags = HAS_NO_FLAGS;
		resetLeapSecond();
		setType(TYPE_UNKNOWN);
		setTimeInNs(Long.MIN_VALUE);
		resetTimeUncertaintyInNs();
		resetBiasInNs();
		resetBiasUncertaintyInNs();
		resetDriftInNsPerSec();
		resetDriftUncertaintyInNsPerSec();
		}

		private void setFlag(short flag) {
		mFlags \|= flag;
		}

		private void resetFlag(short flag) {
		mFlags &= ~flag;
		}

		private boolean isFlagSet(short flag) {
		return (mFlags & flag) == flag;
		}
		}

location/java/android/location/GpsMeasurement.java

+364 −223

File changed.

Preview size limit exceeded, changes collapsed.

services/core/jni/com_android_server_location_GpsLocationProvider.cpp

+60 −76

Original line number	Diff line number	Diff line
		@@ -861,6 +861,7 @@ static jboolean android_location_GpsLocationProvider_resume_geofence(JNIEnv* env

		static jobject translate_gps_clock(JNIEnv* env, GpsClock* clock) {
		const char* doubleSignature = "(D)V";
		const char* longSignature = "(J)V";

		jclass gpsClockClass = env->FindClass("android/location/GpsClock");
		jmethodID gpsClockCtor = env->GetMethodID(gpsClockClass, "<init>", "()V");
		@@ -873,53 +874,51 @@ static jobject translate_gps_clock(JNIEnv* env, GpsClock* clock) {
		env->CallObjectMethod(gpsClockObject, setterMethod, clock->leap_second);
		}

		jmethodID setterMethod = env->GetMethodID(gpsClockClass, "setTimeInNs", "(J)V");
		jmethodID typeSetterMethod = env->GetMethodID(gpsClockClass, "setType", "(B)V");
		env->CallObjectMethod(gpsClockObject, typeSetterMethod, clock->type);

		jmethodID setterMethod = env->GetMethodID(gpsClockClass, "setTimeInNs", longSignature);
		env->CallObjectMethod(gpsClockObject, setterMethod, clock->time_ns);

		if (flags & GPS_CLOCK_HAS_TIME_UNCERTAINTY) {
		jmethodID setterMethod = env->GetMethodID(
		gpsClockClass,
		"setTimeUncertaintyInNs",
		doubleSignature);
		jmethodID setterMethod =
		env->GetMethodID(gpsClockClass, "setTimeUncertaintyInNs", doubleSignature);
		env->CallObjectMethod(gpsClockObject, setterMethod, clock->time_uncertainty_ns);
		}

		if (flags & GPS_CLOCK_HAS_FULL_BIAS) {
		jmethodID setterMethod = env->GetMethodID(gpsClockClass, "setFullBiasInNs", longSignature);
		env->CallObjectMethod(gpsClockObject, setterMethod, clock->full_bias_ns);
		}

		if (flags & GPS_CLOCK_HAS_BIAS) {
		jmethodID setterMethod = env->GetMethodID(gpsClockClass, "setBiasInNs", doubleSignature);
		env->CallObjectMethod(gpsClockObject, setterMethod, clock->bias_ns);
		}

		if (flags & GPS_CLOCK_HAS_BIAS_UNCERTAINTY) {
		jmethodID setterMethod = env->GetMethodID(
		gpsClockClass,
		"setBiasUncertaintyInNs",
		doubleSignature);
		jmethodID setterMethod =
		env->GetMethodID(gpsClockClass, "setBiasUncertaintyInNs", doubleSignature);
		env->CallObjectMethod(gpsClockObject, setterMethod, clock->bias_uncertainty_ns);
		}

		if (flags & GPS_CLOCK_HAS_DRIFT) {
		jmethodID setterMethod = env->GetMethodID(
		gpsClockClass,
		"setDriftInNsPerSec",
		doubleSignature);
		jmethodID setterMethod =
		env->GetMethodID(gpsClockClass, "setDriftInNsPerSec", doubleSignature);
		env->CallObjectMethod(gpsClockObject, setterMethod, clock->drift_nsps);
		}

		if (flags & GPS_CLOCK_HAS_DRIFT_UNCERTAINTY) {
		jmethodID setterMethod = env->GetMethodID(
		gpsClockClass,
		"setDriftUncertaintyInNsPerSec",
		doubleSignature);
		jmethodID setterMethod =
		env->GetMethodID(gpsClockClass, "setDriftUncertaintyInNsPerSec", doubleSignature);
		env->CallObjectMethod(gpsClockObject, setterMethod, clock->drift_uncertainty_nsps);
		}

		return gpsClockObject;
		}

		static jobject translate_gps_measurement(
		JNIEnv* env,
		GpsMeasurement* measurement,
		uint32_t time_ns) {
		static jobject translate_gps_measurement(JNIEnv* env, GpsMeasurement* measurement) {
		const char* byteSignature = "(B)V";
		const char* shortSignature = "(S)V";
		const char* longSignature = "(J)V";
		const char* floatSignature = "(F)V";
		@@ -931,16 +930,18 @@ static jobject translate_gps_measurement(
		jobject gpsMeasurementObject = env->NewObject(gpsMeasurementClass, gpsMeasurementCtor);
		GpsMeasurementFlags flags = measurement->flags;


		jmethodID prnSetterMethod = env->GetMethodID(gpsMeasurementClass, "setPrn", "(B)V");
		jmethodID prnSetterMethod = env->GetMethodID(gpsMeasurementClass, "setPrn", byteSignature);
		env->CallObjectMethod(gpsMeasurementObject, prnSetterMethod, measurement->prn);

		jmethodID localTimeSetterMethod =
		env->GetMethodID(gpsMeasurementClass, "setLocalTimeInNs", longSignature);
		jmethodID timeOffsetSetterMethod =
		env->GetMethodID(gpsMeasurementClass, "setTimeOffsetInNs", doubleSignature);
		env->CallObjectMethod(
		gpsMeasurementObject,
		localTimeSetterMethod,
		time_ns + measurement->time_offset_ns);
		timeOffsetSetterMethod,
		measurement->time_offset_ns);

		jmethodID stateSetterMethod = env->GetMethodID(gpsMeasurementClass, "setState", shortSignature);
		env->CallObjectMethod(gpsMeasurementObject, stateSetterMethod, measurement->state);

		jmethodID receivedGpsTowSetterMethod =
		env->GetMethodID(gpsMeasurementClass, "setReceivedGpsTowInNs", longSignature);
		@@ -949,10 +950,8 @@ static jobject translate_gps_measurement(
		receivedGpsTowSetterMethod,
		measurement->received_gps_tow_ns);

		jmethodID cn0SetterMethod = env->GetMethodID(
		gpsMeasurementClass,
		"setCn0InDbHz",
		doubleSignature);
		jmethodID cn0SetterMethod =
		env->GetMethodID(gpsMeasurementClass, "setCn0InDbHz", doubleSignature);
		env->CallObjectMethod(gpsMeasurementObject, cn0SetterMethod, measurement->c_n0_dbhz);

		jmethodID pseudorangeRateSetterMethod = env->GetMethodID(
		@@ -962,7 +961,7 @@ static jobject translate_gps_measurement(
		env->CallObjectMethod(
		gpsMeasurementObject,
		pseudorangeRateSetterMethod,
		measurement->pseudorange_rate_mpersec);
		measurement->pseudorange_rate_mps);

		jmethodID pseudorangeRateUncertaintySetterMethod = env->GetMethodID(
		gpsMeasurementClass,
		@@ -971,7 +970,14 @@ static jobject translate_gps_measurement(
		env->CallObjectMethod(
		gpsMeasurementObject,
		pseudorangeRateUncertaintySetterMethod,
		measurement->pseudorange_rate_uncertainty_mpersec);
		measurement->pseudorange_rate_uncertainty_mps);

		jmethodID accumulatedDeltaRangeStateSetterMethod =
		env->GetMethodID(gpsMeasurementClass, "setAccumulatedDeltaRangeState", shortSignature);
		env->CallObjectMethod(
		gpsMeasurementObject,
		accumulatedDeltaRangeStateSetterMethod,
		measurement->accumulated_delta_range_state);

		jmethodID accumulatedDeltaRangeSetterMethod = env->GetMethodID(
		gpsMeasurementClass,
		@@ -991,12 +997,9 @@ static jobject translate_gps_measurement(
		accumulatedDeltaRangeUncertaintySetterMethod,
		measurement->accumulated_delta_range_uncertainty_m);


		if (flags & GPS_MEASUREMENT_HAS_PSEUDORANGE) {
		jmethodID setterMethod = env->GetMethodID(
		gpsMeasurementClass,
		"setPseudorangeInMeters",
		doubleSignature);
		jmethodID setterMethod =
		env->GetMethodID(gpsMeasurementClass, "setPseudorangeInMeters", doubleSignature);
		env->CallObjectMethod(gpsMeasurementObject, setterMethod, measurement->pseudorange_m);
		}

		@@ -1012,10 +1015,8 @@ static jobject translate_gps_measurement(
		}

		if (flags & GPS_MEASUREMENT_HAS_CODE_PHASE) {
		jmethodID setterMethod = env->GetMethodID(
		gpsMeasurementClass,
		"setCodePhaseInChips",
		doubleSignature);
		jmethodID setterMethod =
		env->GetMethodID(gpsMeasurementClass, "setCodePhaseInChips", doubleSignature);
		env->CallObjectMethod(gpsMeasurementObject, setterMethod, measurement->code_phase_chips);
		}

		@@ -1031,10 +1032,8 @@ static jobject translate_gps_measurement(
		}

		if (flags & GPS_MEASUREMENT_HAS_CARRIER_FREQUENCY) {
		jmethodID setterMethod = env->GetMethodID(
		gpsMeasurementClass,
		"setCarrierFrequencyInHz",
		floatSignature);
		jmethodID setterMethod =
		env->GetMethodID(gpsMeasurementClass, "setCarrierFrequencyInHz", floatSignature);
		env->CallObjectMethod(
		gpsMeasurementObject,
		setterMethod,
		@@ -1065,33 +1064,27 @@ static jobject translate_gps_measurement(
		}

		jmethodID lossOfLockSetterMethod =
		env->GetMethodID(gpsMeasurementClass, "setLossOfLock", shortSignature);
		env->GetMethodID(gpsMeasurementClass, "setLossOfLock", byteSignature);
		env->CallObjectMethod(gpsMeasurementObject, lossOfLockSetterMethod, measurement->loss_of_lock);

		if (flags & GPS_MEASUREMENT_HAS_BIT_NUMBER) {
		jmethodID setterMethod = env->GetMethodID(
		gpsMeasurementClass,
		"setBitNumber",
		shortSignature);
		jmethodID setterMethod =
		env->GetMethodID(gpsMeasurementClass, "setBitNumber", shortSignature);
		env->CallObjectMethod(gpsMeasurementObject, setterMethod, measurement->bit_number);
		}

		if (flags & GPS_MEASUREMENT_HAS_TIME_FROM_LAST_BIT) {
		jmethodID setterMethod = env->GetMethodID(
		gpsMeasurementClass,
		"setTimeFromLastBitInNs",
		longSignature);
		jmethodID setterMethod =
		env->GetMethodID(gpsMeasurementClass, "setTimeFromLastBitInMs", shortSignature);
		env->CallObjectMethod(
		gpsMeasurementObject,
		setterMethod,
		measurement->time_from_last_bit_ns);
		measurement->time_from_last_bit_ms);
		}

		if (flags & GPS_MEASUREMENT_HAS_DOPPLER_SHIFT) {
		jmethodID setterMethod = env->GetMethodID(
		gpsMeasurementClass,
		"setDopplerShiftInHz",
		doubleSignature);
		jmethodID setterMethod =
		env->GetMethodID(gpsMeasurementClass, "setDopplerShiftInHz", doubleSignature);
		env->CallObjectMethod(gpsMeasurementObject, setterMethod, measurement->doppler_shift_hz);
		}

		@@ -1106,10 +1099,8 @@ static jobject translate_gps_measurement(
		measurement->doppler_shift_uncertainty_hz);
		}

		jmethodID multipathIndicatorSetterMethod = env->GetMethodID(
		gpsMeasurementClass,
		"setMultipathIndicator",
		shortSignature);
		jmethodID multipathIndicatorSetterMethod =
		env->GetMethodID(gpsMeasurementClass, "setMultipathIndicator", byteSignature);
		env->CallObjectMethod(
		gpsMeasurementObject,
		multipathIndicatorSetterMethod,
		@@ -1122,18 +1113,14 @@ static jobject translate_gps_measurement(
		}

		if (flags & GPS_MEASUREMENT_HAS_ELEVATION) {
		jmethodID setterMethod = env->GetMethodID(
		gpsMeasurementClass,
		"setElevationInDeg",
		doubleSignature);
		jmethodID setterMethod =
		env->GetMethodID(gpsMeasurementClass, "setElevationInDeg", doubleSignature);
		env->CallObjectMethod(gpsMeasurementObject, setterMethod, measurement->elevation_deg);
		}

		if (flags & GPS_MEASUREMENT_HAS_ELEVATION_UNCERTAINTY) {
		jmethodID setterMethod = env->GetMethodID(
		gpsMeasurementClass,
		"setElevationUncertaintyInDeg",
		doubleSignature);
		jmethodID setterMethod =
		env->GetMethodID(gpsMeasurementClass, "setElevationUncertaintyInDeg", doubleSignature);
		env->CallObjectMethod(
		gpsMeasurementObject,
		setterMethod,
		@@ -1180,10 +1167,7 @@ static jobjectArray translate_gps_measurements(JNIEnv* env, GpsData* data) {

		GpsMeasurement* gpsMeasurements = data->measurements;
		for (uint16_t i = 0; i < measurementCount; ++i) {
		jobject gpsMeasurement = translate_gps_measurement(
		env,
		&gpsMeasurements[i],
		data->clock.time_ns);
		jobject gpsMeasurement = translate_gps_measurement(env, &gpsMeasurements[i]);
		env->SetObjectArrayElement(gpsMeasurementArray, i, gpsMeasurement);
		env->DeleteLocalRef(gpsMeasurement);
		}