Package org.apache.commons.lang3

Class RuntimeEnvironment

java.lang.Object

org.apache.commons.lang3.RuntimeEnvironment

public class RuntimeEnvironment
extends Object

Helps query the runtime environment.

Since:

3.15.0

Constructor Summary

Constructors

Constructor	Description
RuntimeEnvironment()	Deprecated. Will be removed in 4.0.0.

Method Summary

Modifier and Type	Method	Description
private static boolean	fileExists(String path)
static Boolean	inContainer()	Tests whether we are running in a container like Docker or Podman.
(package private) static boolean	inContainer(String dirPrefix)
private static String	readFile(String envVarFile, String key)	Tests whether the /proc/N/environ file at the given path string contains a specific line prefix.

Methods inherited from class java.lang.Object

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

Constructor Details

RuntimeEnvironment

@Deprecated
public RuntimeEnvironment()

Deprecated.

Will be removed in 4.0.0.

Constructs a new instance.

Method Details

fileExists

private static boolean fileExists(String path)

inContainer

public static Boolean inContainer()

Tests whether we are running in a container like Docker or Podman.

Returns:

whether we are running in a container like Docker or Podman. Never null

inContainer

static boolean inContainer(String dirPrefix)

readFile

private static String readFile(String envVarFile,
 String key)

Tests whether the /proc/N/environ file at the given path string contains a specific line prefix.

Parameters:

envVarFile - The path to a /proc/N/environ file.

key - The env var key to find.

Returns:

value The env var value or null.