Package com.winterhavenmc.library.messagebuilder.adapters.pipeline.replacers

Class RegexMacroReplacer

java.lang.Object

com.winterhavenmc.library.messagebuilder.adapters.pipeline.replacers.RegexMacroReplacer

All Implemented Interfaces:

MacroReplacer

public class RegexMacroReplacer
extends Object
implements MacroReplacer

Default implementation of the MacroReplacer interface that performs macro substitution on input strings using values derived from a MacroObjectMap.

This replacer extracts macros from the message using configurable regular expressions, then delegates resolution of each macro to a ValueResolver. Once resolved, macros are replaced in the string using their corresponding values.

The class supports two levels of macro detection:

• BASE_KEY_PATTERN — for determining candidate base keys used in resolution
• FULL_KEY_PATTERN — for actual replacement of placeholders in the final string

Unresolvable macros are left intact in the output string, ensuring safe and fail-tolerant rendering behavior.

See Also:

• MacroReplacer
• ValueResolver
• PlaceholderMatcher
• MacroStringMap

Field Summary

Fields

Modifier and Type	Field	Description
static final Pattern	BASE_KEY_PATTERN	Pattern used to match base macro keys (e.g., [ITEM}) for macro resolution via the ValueResolver.
static final Pattern	FULL_KEY_PATTERN	Pattern used to match fully qualified macro placeholders (e.g., %ITEM.NAME_SINGULAR%) for the purpose of final string replacement.

Constructor Summary

Constructors

Constructor	Description
RegexMacroReplacer(ValueResolver resolver, PlaceholderMatcher placeholderMatcher)	Constructs a RegexMacroReplacer with the given resolver and placeholder matcher.

Method Summary

Modifier and Type	Method	Description
String	replace(MacroObjectMap macroObjectMap, String messageString)	Replaces all macro placeholders found in the given message string using the provided MacroObjectMap.

Methods inherited from class java.lang.Object

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

Field Details

FULL_KEY_PATTERN

public static final Pattern FULL_KEY_PATTERN

Pattern used to match fully qualified macro placeholders (e.g., %ITEM.NAME_SINGULAR%) for the purpose of final string replacement.

BASE_KEY_PATTERN

public static final Pattern BASE_KEY_PATTERN

Pattern used to match base macro keys (e.g., [ITEM}) for macro resolution via the ValueResolver.

This pattern determines which objects should be passed to the resolver to populate values for all matching derived keys.

Constructor Details

RegexMacroReplacer

public RegexMacroReplacer(ValueResolver resolver,
 PlaceholderMatcher placeholderMatcher)

Constructs a RegexMacroReplacer with the given resolver and placeholder matcher.

Parameters:

resolver - the macro resolver responsible for producing string values for each macro

placeholderMatcher - the matcher used to identify macro patterns in message strings

Method Details

replace

public String replace(MacroObjectMap macroObjectMap,
 String messageString)

Replaces all macro placeholders found in the given message string using the provided MacroObjectMap.

The replacement process is performed in two stages:

1. Extract base macro keys from the string using BASE_KEY_PATTERN
2. Resolve and populate a MacroStringMap with string values
3. Substitute each matching placeholder using FULL_KEY_PATTERN

If a macro cannot be resolved, it is left in-place as its original placeholder form.

Specified by:

replace in interface MacroReplacer

Parameters:

macroObjectMap - a map of macro keys to context objects used for resolution

messageString - the input string containing macro placeholders (may be null)

Returns:

the final formatted message with macros replaced