Package software.amazon.awssdk.utils.internal

Class SystemSettingUtils

java.lang.Object

software.amazon.awssdk.utils.internal.SystemSettingUtils

public final class SystemSettingUtils
extends Object

A set of static utility methods for shared code in SystemSetting.

Method Summary

Modifier and Type	Method	Description
static Optional<String>	resolveEnvironmentVariable(String key)	Attempt to load a key from the environment variables.
static Optional<String>	resolveEnvironmentVariable(SystemSetting setting)	Attempt to load this setting from the environment variables.
static Optional<String>	resolveNonDefaultSetting(SystemSetting setting)	Resolve the value of this system setting, loading it from the System by checking: The system properties. The environment variables.
static Optional<String>	resolveSetting(SystemSetting setting)	Resolve the value of this system setting, loading it from the System by checking: The system properties. The environment variables. The default value.
static Boolean	safeStringToBoolean(SystemSetting setting, String value)	Convert a string to boolean safely (as opposed to the less strict Boolean.parseBoolean(String)).

Methods inherited from class java.lang.Object

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

Method Details

resolveSetting

public static Optional<String> resolveSetting(SystemSetting setting)

Resolve the value of this system setting, loading it from the System by checking:

1. The system properties.
2. The environment variables.
3. The default value.

resolveNonDefaultSetting

public static Optional<String> resolveNonDefaultSetting(SystemSetting setting)

Resolve the value of this system setting, loading it from the System by checking:

1. The system properties.
2. The environment variables.

This is similar to resolveSetting(SystemSetting) but does not fall back to the default value if neither the environment variable or system property value are present.

resolveEnvironmentVariable

public static Optional<String> resolveEnvironmentVariable(SystemSetting setting)

Attempt to load this setting from the environment variables.

resolveEnvironmentVariable

public static Optional<String> resolveEnvironmentVariable(String key)

Attempt to load a key from the environment variables.

safeStringToBoolean

public static Boolean safeStringToBoolean(SystemSetting setting,
 String value)

Convert a string to boolean safely (as opposed to the less strict Boolean.parseBoolean(String)). If a customer specifies a boolean value it should be "true" or "false" (case insensitive) or an exception will be thrown.