SystemUtil

public class SystemUtil
extends Object

java.lang.Object
↳	com.android.tradefed.util.SystemUtil

Utility class for making system calls.

Summary

Fields
`public static final`	`ENV_VARIABLE_PATHS_IN_TESTS_DIR` Keep track of the mapping of the variables to the subpath it takes in the tests dir.
`public static final String`	`REMOTE_VM_VARIABLE`

Public constructors
`SystemUtil()`

Public methods
`static File`	`getExternalTestCasesDir(SystemUtil.EnvVariable envVariable)` Get the file associated with the env.
`static`	`getExternalTestCasesDirs()` Get a list of `ERROR(/File)` pointing to tests directories external to Tradefed.
`static File`	`getProductOutputDir()` Gets the product specific output dir from an Android build tree.
`static File`	`getRunningJavaBinaryPath(boolean skipJavaCheck)` This version with explicit feature server is only for special situation such as noisy dry run.
`static File`	`getRunningJavaBinaryPath()` Returns the path to the Java binary that current test harness is running in
`static`	`getTestCasesDirs(IBuildInfo buildInfo)` Get a list of `ERROR(/File)` of the test cases directories
`static boolean`	`isLocalMode()` Returns true if Tradefed is running in local mode and should automate some actions for user.
`static boolean`	`isRemoteEnvironment()` Return true if we are currently running in a remote environment.

Fields

ENV_VARIABLE_PATHS_IN_TESTS_DIR

public static final  ENV_VARIABLE_PATHS_IN_TESTS_DIR

Keep track of the mapping of the variables to the subpath it takes in the tests dir.

REMOTE_VM_VARIABLE

public static final String REMOTE_VM_VARIABLE

Public constructors

SystemUtil

public SystemUtil ()

Public methods

getExternalTestCasesDir

public static File getExternalTestCasesDir (SystemUtil.EnvVariable envVariable)

Get the file associated with the env. variable.

Parameters
`envVariable`	`SystemUtil.EnvVariable`: ANDROID_TARGET_OUT_TESTCASES or ANDROID_HOST_OUT_TESTCASES

Returns
`File`	The directory associated.

getExternalTestCasesDirs

public static  getExternalTestCasesDirs ()

Get a list of ERROR(/File) pointing to tests directories external to Tradefed.

Returns

getProductOutputDir

public static File getProductOutputDir ()

Gets the product specific output dir from an Android build tree. Typically this location contains images for various device partitions, bootloader, radio and so on.

Note: the method does not guarantee that this path exists.

Returns
`File`	the location of the output dir or `null` if the current build is not

getRunningJavaBinaryPath

public static File getRunningJavaBinaryPath (boolean skipJavaCheck)

This version with explicit feature server is only for special situation such as noisy dry run.

Parameters
`skipJavaCheck`	`boolean`

Returns
`File`

getRunningJavaBinaryPath

public static File getRunningJavaBinaryPath ()

Returns the path to the Java binary that current test harness is running in

Returns
`File`

getTestCasesDirs

public static  getTestCasesDirs (IBuildInfo buildInfo)

Get a list of ERROR(/File) of the test cases directories

Parameters
`buildInfo`	`IBuildInfo`: the build artifact information. Set it to null if build info is not available or there is no need to get test cases directories from build info.

Returns
	a list of `ERROR(/File)` of directories of the test cases folder of build output, based on the value of environment variables and the given build info.

isLocalMode

public static boolean isLocalMode ()

Returns true if Tradefed is running in local mode and should automate some actions for user.

Returns
`boolean`

isRemoteEnvironment

public static boolean isRemoteEnvironment ()

Return true if we are currently running in a remote environment.

Returns
`boolean`