Package com.diozero.sbc

Class DeviceFactoryHelper

java.lang.Object

com.diozero.sbc.DeviceFactoryHelper

public class DeviceFactoryHelper
extends Object

Helper class for automatically detecting the native device factory that will be used for provisioning I/O devices. Uses the Java ServiceLoader to detect NativeDeviceFactoryInterface implementations that are available on the class-path as defined in META-INF/services/com.diozero.internal.provider.NativeDeviceFactoryInterface. The first entry is used if there are multiple implementations present on the class-path. Alternatively you can specify the class to use via the command line or environment property diozero.devicefactory. The built-in device factory is used if the above logic fails to instantiate a device factory implementation.

Field Summary

Fields

Modifier and Type	Field	Description
static String	DEVICE_FACTORY_PROP

Constructor Summary

Constructors

Constructor	Description
DeviceFactoryHelper()

Method Summary

Modifier and Type	Method	Description
static NativeDeviceFactoryInterface	getNativeDeviceFactory()	Auto-detect the native device factory class to be used for provisioning I/O devices in this lookup order: Command line property / environment variable diozero.devicefactory Java ServiceLoader using the class com.diozero.internal.provider.NativeDeviceFactoryInterface The built-in device factory

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

DEVICE_FACTORY_PROP

public static final String DEVICE_FACTORY_PROP

See Also:

Constant Field Values

Constructor Details

DeviceFactoryHelper

public DeviceFactoryHelper()

Method Details

getNativeDeviceFactory

public static NativeDeviceFactoryInterface getNativeDeviceFactory()

Auto-detect the native device factory class to be used for provisioning I/O devices in this lookup order:

1. Command line property / environment variable diozero.devicefactory
2. Java ServiceLoader using the class com.diozero.internal.provider.NativeDeviceFactoryInterface
3. The built-in device factory

Returns:

the native device factory instance to use for provisioning I/O devices.