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chrispr
2020-07-19 20:32:50 -04:00
commit 2bb5027d11
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.gitignore vendored Normal file
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##############################
## Java
##############################
.mtj.tmp/
*.class
*.jar
*.war
*.ear
*.nar
hs_err_pid*
##############################
## Maven
##############################
target/
pom.xml.tag
pom.xml.releaseBackup
pom.xml.versionsBackup
pom.xml.next
pom.xml.bak
release.properties
dependency-reduced-pom.xml
buildNumber.properties
.mvn/timing.properties
.mvn/wrapper/maven-wrapper.jar
##############################
## Gradle
##############################
bin/
build/
.gradle
.gradletasknamecache
gradle-app.setting
!gradle-wrapper.jar
##############################
## IntelliJ
##############################
out/
#.idea/
#.idea_modules/
#*.iml
*.ipr
*.iws
##############################
## Eclipse
##############################
.settings/
bin/
tmp/
.metadata
.classpath
.project
*.tmp
*.bak
*.swp
*~.nib
local.properties
.loadpath
.factorypath
##############################
## NetBeans
##############################
nbproject/private/
build/
nbbuild/
dist/
nbdist/
nbactions.xml
nb-configuration.xml
##############################
## Visual Studio Code
##############################
.vscode/
.code-workspace
##############################
## OS X
##############################
.DS_Store

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# Default ignored files
/shelf/
/workspace.xml

26
.idea/artifacts/BluetoothHRService_jar.xml generated Normal file
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<component name="ArtifactManager">
<artifact type="jar" name="BluetoothHRService:jar">
<output-path>$PROJECT_DIR$/out/artifacts/BluetoothHRService_jar</output-path>
<root id="archive" name="BluetoothHRService.jar">
<element id="module-output" name="BluetoothHRService" />
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</root>
</artifact>
</component>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="CompilerConfiguration">
<annotationProcessing>
<profile name="Maven default annotation processors profile" enabled="true">
<sourceOutputDir name="target/generated-sources/annotations" />
<sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
<outputRelativeToContentRoot value="true" />
<module name="BluetoothHRService" />
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</bytecodeTargetLevel>
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<html>Simple <b>Java</b> application that includes a class with <code>main()</code> method</html>

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.idea/libraries/com_github_hypfvieh_bluez_dbus_0_1_1.xml generated Normal file
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.idea/misc.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectModuleManager">
<modules>
<module fileurl="file://$PROJECT_DIR$/BluetoothHRService.iml" filepath="$PROJECT_DIR$/BluetoothHRService.iml" />
</modules>
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.idea/project-template.xml generated Normal file
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<template>
<input-field default="com.company">IJ_BASE_PACKAGE</input-field>
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BluetoothHRService.iml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
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config.properties Normal file
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InfluxDBURL=http://arrakis.chrispr.lan:8086
InfluxDBUsername=airreport
InfluxDBPassword=airreport
InfluxDBDatabase=heartrate

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pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
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<modelVersion>4.0.0</modelVersion>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<groupId>com.chrispr</groupId>
<artifactId>BluetoothHRService</artifactId>
<version>1.0-SNAPSHOT</version>
</project>

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src/main/java/META-INF/MANIFEST.MF Normal file
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Manifest-Version: 1.0
Main-Class: com.chrispr.bluetooth.heartrate.Main

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src/main/java/com/chrispr/bluetooth/BluetoothNotificationSubscriber.java Normal file
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package com.chrispr.bluetooth;
import com.chrispr.bluetooth.heartrate.Main;
import com.chrispr.utility.Event;
import com.github.hypfvieh.bluetooth.DeviceManager;
import com.github.hypfvieh.bluetooth.wrapper.BluetoothDevice;
import com.github.hypfvieh.bluetooth.wrapper.BluetoothGattCharacteristic;
import com.github.hypfvieh.bluetooth.wrapper.BluetoothGattService;
import org.bluez.exceptions.BluezFailedException;
import org.bluez.exceptions.BluezInProgressException;
import org.bluez.exceptions.BluezNotPermittedException;
import org.bluez.exceptions.BluezNotSupportedException;
import org.freedesktop.dbus.exceptions.DBusException;
import org.freedesktop.dbus.handlers.AbstractPropertiesChangedHandler;
import org.freedesktop.dbus.interfaces.Properties;
import org.freedesktop.dbus.types.Variant;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.*;
// This class helps implement bluetooth characteristic notification events by receiving them
// from the DBUS interface and parsing them for easier consumption
public class BluetoothNotificationSubscriber extends AbstractPropertiesChangedHandler {
private BluetoothDevice device;
private BluetoothGattService service;
private BluetoothGattCharacteristic characteristic;
private String CharacteristicUUID;
private String CharacteristicDBUSPath;
private List<IBluetoothCharacteristicNotification> handlers;
private Logger logger = LoggerFactory.getLogger(BluetoothNotificationSubscriber.class);
public BluetoothNotificationSubscriber(BluetoothDevice device, BluetoothGattService service, BluetoothGattCharacteristic characteristic) {
this.device = device;
this.service = service;
this.characteristic = characteristic;
this.CharacteristicUUID = characteristic.getUuid();
this.CharacteristicDBUSPath = characteristic.getDbusPath();
handlers = new ArrayList<IBluetoothCharacteristicNotification>();
registerPropertyChangedHandler();
SubscribeToCharacteristicNotifications();
}
public void addHandler(IBluetoothCharacteristicNotification handler) {
handlers.add(handler);
}
public void removeHandler(IBluetoothCharacteristicNotification handler) {
handlers.remove(handler);
}
//Assumes the DeviceManager has already been created
private void registerPropertyChangedHandler() {
DeviceManager manager = DeviceManager.getInstance();
try {
manager.registerPropertyHandler(this);
} catch (DBusException e) {
logger.error(e.toString());
}
}
private void SubscribeToCharacteristicNotifications() {
try {
characteristic.startNotify();
} catch (BluezFailedException e) {
logger.error(e.toString());
} catch (BluezInProgressException e) {
logger.error(e.toString());
} catch (BluezNotSupportedException e) {
logger.error(e.toString());
} catch (BluezNotPermittedException e) {
logger.error(e.toString());
}
}
@Override
public void handle(Properties.PropertiesChanged propertiesChanged) {
if (!propertiesChanged.getPath().equals(CharacteristicDBUSPath))
return;
Map<String, Variant<?>> propMap = propertiesChanged.getPropertiesChanged();
Iterator<Map.Entry<String, Variant<?>>> it = propMap.entrySet().iterator();
while (it.hasNext()) {
Map.Entry<String, Variant<?>> entry = it.next();
Object object = entry.getValue().getValue();
logger.debug("[{}] {} -> {} uuid:{}", object.getClass().getName(), entry.getKey(), object, CharacteristicUUID);
if ((object == null) || !(object instanceof byte[])) {
continue;
}
byte[] data = (byte[]) object;
logger.debug("New characteristic received, calling handler");
for(IBluetoothCharacteristicNotification handler : handlers) {
handler.handleNewNotification(device, service, characteristic, data);
}
}
}
}

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src/main/java/com/chrispr/bluetooth/IBluetoothCharacteristicNotification.java Normal file
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package com.chrispr.bluetooth;
import com.github.hypfvieh.bluetooth.wrapper.BluetoothDevice;
import com.github.hypfvieh.bluetooth.wrapper.BluetoothGattCharacteristic;
import com.github.hypfvieh.bluetooth.wrapper.BluetoothGattService;
public interface IBluetoothCharacteristicNotification {
public void handleNewNotification(BluetoothDevice device, BluetoothGattService service, BluetoothGattCharacteristic characteristic, byte[] value);
}

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src/main/java/com/chrispr/bluetooth/heartrate/Main.java Normal file
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package com.chrispr.bluetooth.heartrate;
import com.chrispr.bluetooth.BluetoothNotificationSubscriber;
import com.chrispr.bluetooth.IBluetoothCharacteristicNotification;
import com.github.hypfvieh.bluetooth.DeviceManager;
import com.github.hypfvieh.bluetooth.wrapper.*;
import org.apache.log4j.BasicConfigurator;
import org.bluez.exceptions.BluezFailedException;
import org.bluez.exceptions.BluezInProgressException;
import org.bluez.exceptions.BluezNotPermittedException;
import org.bluez.exceptions.BluezNotSupportedException;
import org.freedesktop.dbus.exceptions.DBusException;
import org.influxdb.InfluxDB;
import org.influxdb.InfluxDBFactory;
import org.influxdb.dto.Point;
import org.influxdb.dto.Query;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.FileInputStream;
import java.io.IOException;
import java.time.LocalDateTime;
import java.util.*;
import java.util.concurrent.TimeUnit;
public class Main {
public static Logger logger = LoggerFactory.getLogger(Main.class);
public static String HeartRateServiceUUID = "0000180d-0000-1000-8000-00805f9b34fb";
public static String HeartRateCharacteristicUUID = "00002a37-0000-1000-8000-00805f9b34fb";
public static InfluxDB DB;
private static LocalDateTime lastUpdate;
public static void main(String[] args) throws InterruptedException, IOException {
// Set up a simple configuration that logs on the console.
BasicConfigurator.configure();
logger.info("Heart Rate Monitor started");
DeviceManager manager;
try {
DeviceManager.createInstance(false);
manager =DeviceManager.getInstance();
} catch (DBusException e) {
logger.error(e.toString());
e.printStackTrace();
return;
}
//load settings
Properties props = new Properties();
FileInputStream in = new FileInputStream("config.properties");
props.load(in);
in.close();
DB = InfluxDBFactory.connect(props.getProperty("InfluxDBURL"), props.getProperty("InfluxDBUsername"), props.getProperty("InfluxDBPassword"));
DB.ping();
String databaseName = props.getProperty("InfluxDBDatabase");
DB.query(new Query("CREATE DATABASE " + databaseName));
DB.setDatabase(databaseName);
logger.debug("Scanning for HR monitor");
BluetoothDevice heartRateDevice;
while(true) {
List<BluetoothDevice> devices = manager.scanForBluetoothDevices(1000);
Optional<BluetoothDevice> device = devices.stream().filter(bt -> bt.getName().contains("TICKR")).findAny();
if(device.isPresent()) {
heartRateDevice = device.get();
break;
}
else
logger.debug("Device not found, scanning again..");
}
heartRateDevice.connect();
heartRateDevice.refreshGattServices();
while(!heartRateDevice.isServicesResolved())
Thread.sleep(100);
BluetoothGattService heartRateService = heartRateDevice.getGattServiceByUuid(HeartRateServiceUUID);
if(heartRateService == null) {
logger.error("The expected service was not found on the device");
return;
}
BluetoothGattCharacteristic heartRateCharacteristic = heartRateService.getGattCharacteristicByUuid(HeartRateCharacteristicUUID);
if(heartRateCharacteristic == null) {
logger.error("The expected characteristic was not found on the device");
return;
}
BluetoothNotificationSubscriber subscriber = new BluetoothNotificationSubscriber(heartRateDevice, heartRateService, heartRateCharacteristic);
subscriber.addHandler((device, service, characteristic, value) -> {
byte contactValue = value[0];
if(contactValue != 6 && contactValue != 22) {
logger.info("ignoring reading due to lack of skin contact");
return;
}
byte hrValue = value[1];
logger.info("Got good heart rate reading of {} bpm", (int)hrValue);
//attempt to log to InfluxDB
Point p = Point.measurement("rate")
.time(System.currentTimeMillis(), TimeUnit.MILLISECONDS)
.addField("bpm", hrValue)
.build();
DB.write(p);
lastUpdate = LocalDateTime.now();
});
while(true){
if(heartRateDevice.isConnected()) {
if(lastUpdate != null && lastUpdate.plusMinutes(2).compareTo(java.time.LocalDateTime.now()) < 0) {
try {
heartRateCharacteristic.startNotify();
} catch (Exception e) {
e.printStackTrace();
}
}
Thread.sleep(10000);
}
else {
while (!heartRateDevice.isConnected()) {
try {
heartRateDevice.connect();
} catch (Exception ex) {
logger.debug(ex.toString());
}
Thread.sleep(10000);
}
try {
heartRateCharacteristic.startNotify();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
}

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src/main/java/com/chrispr/utility/Event.java Normal file
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package com.chrispr.utility;
import java.util.HashSet;
import java.util.Set;
import java.util.function.Consumer;
// Simple implementation of event handler / observable /etc
public class Event<T> {
private Set<Consumer<T>> listeners = new HashSet();
public void addListener(Consumer<T> listener) {
listeners.add(listener);
}
public void broadcast(T args) {
listeners.forEach(x -> x.accept(args));
}
}