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GsonStep.java
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GsonStep.java
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/*
* Copyright 2022-2023 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.json.gson;
import java.io.IOException;
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;
public class GsonStep {
private static final String MAVEN_COORDINATES = "com.google.code.gson:gson";
private static final String INCOMPATIBLE_ERROR_MESSAGE = "There was a problem interacting with Gson; maybe you set an incompatible version?";
@Deprecated
public static FormatterStep create(int indentSpaces, boolean sortByKeys, boolean escapeHtml, String version, Provisioner provisioner) {
return create(new GsonConfig(sortByKeys, escapeHtml, indentSpaces, version), provisioner);
}
public static FormatterStep create(GsonConfig gsonConfig, Provisioner provisioner) {
Objects.requireNonNull(provisioner, "provisioner cannot be null");
return FormatterStep.createLazy("gson", () -> new State(gsonConfig, provisioner), State::toFormatter);
}
private static final class State implements Serializable {
private static final long serialVersionUID = -3240568265160440420L;
private final JarState jarState;
private final GsonConfig gsonConfig;
private State(GsonConfig gsonConfig, Provisioner provisioner) throws IOException {
this.gsonConfig = gsonConfig;
this.jarState = JarState.from(MAVEN_COORDINATES + ":" + gsonConfig.getVersion(), provisioner);
}
FormatterFunc toFormatter() {
try {
Class<?> formatterFunc = jarState.getClassLoader().loadClass("com.diffplug.spotless.glue.gson.GsonFormatterFunc");
Constructor<?> constructor = formatterFunc.getConstructor(GsonConfig.class);
return (FormatterFunc) constructor.newInstance(gsonConfig);
} catch (ClassNotFoundException | NoSuchMethodException | InvocationTargetException
| InstantiationException | IllegalAccessException | NoClassDefFoundError cause) {
throw new IllegalStateException(INCOMPATIBLE_ERROR_MESSAGE, cause);
}
}
}
}