SystemPropertyUtils class abstract

Utility class for resolving #{...}-style placeholders within strings using system properties or environment variables.

This class provides static methods to:

• Resolve system placeholders like #{user.name}
• Configure whether unresolved placeholders should throw or be ignored

It supports default value resolution using the colon : separator, and escaping using the backslash \.

Example (strict resolution)

final result = SystemPropertyUtils.resolvePlaceholders('Hello #{USER}');
print(result); // Throws if USER is not found

Example (lenient resolution)

final result = SystemPropertyUtils.resolvePlaceholdersWithPlaceholder(
  'Hello #{USER:Guest}',
  true,
);
print(result); // Hello Guest

Constructors

SystemPropertyUtils()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

ESCAPE_CHARACTER → Character

Escape character for property placeholders: \

final

PLACEHOLDER_PREFIX → String

Prefix for property placeholders: #{

final

PLACEHOLDER_SUFFIX → String

Suffix for property placeholders: }

final

VALUE_SEPARATOR → String

Value separator for property placeholders: :

final

Static Methods

resolvePlaceholders(String text) → String

Utility class for resolving #{...}-style placeholders within strings using system properties or environment variables.

resolvePlaceholdersWithPlaceholder(String text, bool ignoreUnresolvablePlaceholders) → String

Utility class for resolving #{...}-style placeholders within strings using system properties or environment variables.