net.binis.codegen.tools.Interpolator Maven / Gradle / Ivy
package net.binis.codegen.tools;
/*-
* #%L
* code-generator
* %%
* Copyright (C) 2021 - 2024 Binis Belev
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
import java.util.List;
import java.util.Map;
public class Interpolator extends BaseStringInterpolator {
protected Context context;
protected Interpolator.Context expression;
public static Interpolator build(String string) {
var result = new Interpolator();
result.expression = result.buildExpression(string);
return result;
}
public static Interpolator build(char identifier, String string) {
var result = new Interpolator();
result.identifier = identifier;
result.expression = result.buildExpression(string);
return result;
}
public Built with(Context context) {
this.context = context;
return () -> expression.interpolate("");
}
public Built params(Map map) {
this.context = param -> map.getOrDefault(param, param).toString();
return () -> expression.interpolate("");
}
protected Context buildConstantExpression(String exp) {
return message -> exp;
}
protected Context buildComplexExpression(List list) {
return message -> {
var result = new StringBuilder();
for (var exp : list) {
result.append(exp.interpolate(message));
}
return result.toString();
};
}
protected Context buildParamExpression(String exp) {
return message ->
context.interpolate(exp);
}
@FunctionalInterface
public interface Context {
String interpolate(String message);
}
@FunctionalInterface
public interface Built {
String interpolate();
}
}