BlueMap/BlueMapCommon/src/main/java/de/bluecolored/bluemap/common/config/ConfigTemplate.java
Lukas Rieger (Blue) 6d53bce0dd
Add stuff
2022-12-13 16:54:31 +01:00

82 lines
3.2 KiB
Java

/*
* This file is part of BlueMap, licensed under the MIT License (MIT).
*
* Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
* Copyright (c) contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package de.bluecolored.bluemap.common.config;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.regex.Pattern;
public class ConfigTemplate {
private static final Pattern TEMPLATE_VARIABLE = Pattern.compile("\\$\\{([\\w\\-.]+)}"); // ${variable}
private static final Pattern TEMPLATE_CONDITIONAL = Pattern.compile("\\$\\{([\\w\\-.]+)<<([\\s\\S]*?)>>}"); // ${conditionid<< ... >>}
private final String template;
private final Set<String> enabledConditionals;
private final Map<String, String> variables;
public ConfigTemplate(String template) {
this.template = template;
this.enabledConditionals = new HashSet<>();
this.variables = new HashMap<>();
}
public ConfigTemplate setConditional(String conditional, boolean enabled) {
if (enabled) enabledConditionals.add(conditional);
else enabledConditionals.remove(conditional);
return this;
}
public ConfigTemplate setVariable(String variable, String value) {
if (value == null) variables.remove(variable);
else variables.put(variable, replacerEscape(value));
return this;
}
public String build() {
return build(this.template, enabledConditionals::contains, s -> variables.getOrDefault(s, "?"));
}
private String build(String template, Predicate<? super String> conditionalResolver, Function<? super String, String> variableResolver) {
String result = TEMPLATE_CONDITIONAL.matcher(template).replaceAll(match ->
conditionalResolver.test(match.group(1)) ? replacerEscape(build(match.group(2), conditionalResolver, variableResolver)) : ""
);
return TEMPLATE_VARIABLE.matcher(result).replaceAll(match -> variableResolver.apply(match.group(1)));
}
private String replacerEscape(String raw) {
return raw
.replace("\\", "\\\\")
.replace("$", "\\$");
}
}