ClusterHostUtil

public class ClusterHostUtil
extends Object

java.lang.Object
↳	com.android.tradefed.cluster.ClusterHostUtil

Static util functions for TF Cluster to get global config instances, host information, etc.

Summary

Public constructors
`ClusterHostUtil()`

Public methods
`static IClusterClient`	`getClusterClient()` Get the `IClusterClient` instance used to interact with the TFC backend.
`static IClusterOptions`	`getClusterOptions()` Get the `IClusterOptions` instance used to store cluster-related settings.
`static long`	`getCurrentTimeMillis()` Returns the current system time.
`static String`	`getHostIpAddress()` Gets the IP address.
`static String`	`getHostName()` Gets the hostname.
`static String`	`getLocalDeviceSerial(String serial)` Returns a local device serial for a given unique device serial.
`static String`	`getRunTarget(DeviceDescriptor device, String runTargetFormat, deviceTags)` Returns the run target for a given device descriptor.
`static String`	`getTestHarness()`
`static long`	`getTfStartTimeMillis()`
`static String`	`getTfVersion()` Gets the TF version running on this host.
`static String`	`getUniqueDeviceSerial(DeviceDescriptor device)` Returns a unique device serial for a device.
`static boolean`	`isLocalhostIpPort(String input)` Checks if a given input is a localhost IP:PORT string.

Protected methods
`static String`	`toValidTfVersion(String version)` Validates a TF version and returns it if it is OK.

Public constructors

ClusterHostUtil

public ClusterHostUtil ()

Public methods

getClusterClient

public static IClusterClient getClusterClient ()

Get the IClusterClient instance used to interact with the TFC backend.

Returns
`IClusterClient`

getClusterOptions

public static IClusterOptions getClusterOptions ()

Get the IClusterOptions instance used to store cluster-related settings.

Returns
`IClusterOptions`

getCurrentTimeMillis

public static long getCurrentTimeMillis ()

Returns the current system time.

Returns
`long`	time in millis.

getHostIpAddress

public static String getHostIpAddress ()

Gets the IP address.

Returns
`String`	the IPV4 address String or "UNKNOWN" if we were unable to fetch it.

getHostName

public static String getHostName ()

Gets the hostname.

1. Try to get hostname from InetAddress. 2. If fail, try to get hostname from HOSTNAME env. 3. If not set, generate a unique hostname.

Returns
`String`	the hostname or null if we were unable to fetch it.

getLocalDeviceSerial

public static String getLocalDeviceSerial (String serial)

Returns a local device serial for a given unique device serial.

TFC sends down unique device serials for non-physical devices which TF does not understand. This method converts them back to local device serials.

Parameters
`serial`	`String`: a unique device serial from TFC.

Returns
`String`	a local device serial.

getRunTarget

public static String getRunTarget (DeviceDescriptor device, 
                String runTargetFormat, 
                 deviceTags)

Returns the run target for a given device descriptor.

Parameters
`device`	`DeviceDescriptor`: `DeviceDescriptor` to get run target for.
`runTargetFormat`	`String`
`deviceTags`

Returns
`String`	run target.

getTestHarness

public static String getTestHarness ()

Returns
`String`

getTfStartTimeMillis

public static long getTfStartTimeMillis ()

Returns
`long`

getTfVersion

public static String getTfVersion ()

Gets the TF version running on this host.

Returns
`String`	this host's TF version.

getUniqueDeviceSerial

public static String getUniqueDeviceSerial (DeviceDescriptor device)

Returns a unique device serial for a device.

Non-physical devices (e.g. emulator) have pseudo serials which are not unique across hosts. This method prefixes those with a hostname to make them unique.

Parameters
`device`	`DeviceDescriptor`: a device descriptor.

Returns
`String`	a unique device serial.

isLocalhostIpPort

public static boolean isLocalhostIpPort (String input)

Checks if a given input is a localhost IP:PORT string.

Parameters
`input`	`String`: a string to check

Returns
`boolean`	true if the given input is a localhost IP:PORT string

Protected methods

toValidTfVersion

protected static String toValidTfVersion (String version)

Validates a TF version and returns it if it is OK.

Parameters
`version`	`String`: The string for a TF version provided by `VersionParser`

Returns
`String`	the version if valid or a default if not.