CompanionDeviceTracker

public class CompanionDeviceTracker
extends Object

java.lang.Object
↳	com.android.tradefed.targetprep.companion.CompanionDeviceTracker

A class for allocating and freeing companion devices

Summary

Public methods
`ITestDevice`	`allocateCompanionDevice(ITestDevice device, DeviceSelectionOptions opt)` Allocate a companion device based on selection criteria.
`void`	`freeCompanionDevice(ITestDevice device)` Free the companion device as identified by the primary device
`ITestDevice`	`getCompanionDevice(ITestDevice device)` Retrieve the allocated companion device as identified by the primary device
`static CompanionDeviceTracker`	`getInstance()` Retrieves singleton instance of the tracker

public ITestDevice allocateCompanionDevice (ITestDevice device, 
                DeviceSelectionOptions opt)

Allocate a companion device based on selection criteria.

Parameters
`device`	`ITestDevice`: the primary device. used to identify the companion device
`opt`	`DeviceSelectionOptions`: selection criteria

Returns
`ITestDevice`	the device allocated or `null` if none available

public void freeCompanionDevice (ITestDevice device)

Free the companion device as identified by the primary device

Parameters
`device`	`ITestDevice`: the primary device whose corresponding companion device should be freed

Throws
`IllegalStateException`	if no companion devices

public ITestDevice getCompanionDevice (ITestDevice device)

Retrieve the allocated companion device as identified by the primary device

Parameters
`device`	`ITestDevice`: the primary device that the companion device is allocated with

Returns
`ITestDevice`	the companion device or `null` if not found

public static CompanionDeviceTracker getInstance ()

Retrieves singleton instance of the tracker

Returns
`CompanionDeviceTracker`