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JacksonYamlStep.java
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JacksonYamlStep.java
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/*
* Copyright 2021-2024 DiffPlug
*
* 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.
*/
package com.diffplug.spotless.yaml;
import java.io.Serializable;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.util.Objects;
import com.diffplug.spotless.FormatterFunc;
import com.diffplug.spotless.FormatterStep;
import com.diffplug.spotless.JarState;
import com.diffplug.spotless.Provisioner;
/**
* Simple YAML formatter which reformats the file according to Jackson YAMLFactory.
*/
// https://stackoverflow.com/questions/14515994/convert-json-string-to-pretty-print-json-output-using-jackson
// https://stackoverflow.com/questions/60891174/i-want-to-load-a-yaml-file-possibly-edit-the-data-and-then-dump-it-again-how
public class JacksonYamlStep implements java.io.Serializable {
private static final long serialVersionUID = 1L;
private static final String MAVEN_COORDINATE = "com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:";
private static final String DEFAULT_VERSION = "2.14.1";
public static final String NAME = "jacksonYaml";
private final JarState.Promised jarState;
private final JacksonYamlConfig jacksonConfig;
private JacksonYamlStep(JarState.Promised jarState, JacksonYamlConfig jacksonConfig) {
this.jarState = jarState;
this.jacksonConfig = jacksonConfig;
}
public static String defaultVersion() {
return DEFAULT_VERSION;
}
public static FormatterStep create(JacksonYamlConfig jacksonConfig,
String jacksonVersion,
Provisioner provisioner) {
Objects.requireNonNull(jacksonConfig, "jacksonConfig cannot be null");
Objects.requireNonNull(provisioner, "provisioner cannot be null");
return FormatterStep.create(NAME,
new JacksonYamlStep(JarState.promise(() -> JarState.from(MAVEN_COORDINATE + jacksonVersion, provisioner)), jacksonConfig),
JacksonYamlStep::equalityState,
State::toFormatter);
}
public static FormatterStep create(Provisioner provisioner) {
return create(new JacksonYamlConfig(), defaultVersion(), provisioner);
}
private State equalityState() {
return new State(jarState.get(), jacksonConfig);
}
private static final class State implements Serializable {
private static final long serialVersionUID = 1L;
private final JacksonYamlConfig jacksonConfig;
private final JarState jarState;
State(JarState jarState, JacksonYamlConfig jacksonConfig) {
this.jarState = jarState;
this.jacksonConfig = jacksonConfig;
}
FormatterFunc toFormatter() throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException,
InstantiationException, IllegalAccessException {
Class<?> formatterFunc = jarState.getClassLoader().loadClass("com.diffplug.spotless.glue.yaml.JacksonYamlFormatterFunc");
Constructor<?> constructor = formatterFunc.getConstructor(JacksonYamlConfig.class);
return (FormatterFunc) constructor.newInstance(jacksonConfig);
}
}
}