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JsonPatchStep.java
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JsonPatchStep.java
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/*
* Copyright 2023-2024 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.json;
import java.io.Serializable;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import javax.annotation.Nullable;
import com.diffplug.spotless.FormatterFunc;
import com.diffplug.spotless.FormatterStep;
import com.diffplug.spotless.JarState;
import com.diffplug.spotless.Provisioner;
public class JsonPatchStep implements java.io.Serializable {
private static final long serialVersionUID = 1L;
private static final String MAVEN_COORDINATE = "com.flipkart.zjsonpatch:zjsonpatch";
private static final String DEFAULT_VERSION = "0.4.16";
public static final String NAME = "apply-json-patch";
private final JarState.Promised jarState;
@Nullable
private final List<Map<String, Object>> patch;
@Nullable
private final String patchString;
private JsonPatchStep(JarState.Promised jarState,
@Nullable String patchString,
@Nullable List<Map<String, Object>> patch) {
this.jarState = jarState;
this.patchString = patchString;
this.patch = patch;
}
public static FormatterStep create(String patchString, Provisioner provisioner) {
return create(DEFAULT_VERSION, patchString, provisioner);
}
public static FormatterStep create(String zjsonPatchVersion, String patchString, Provisioner provisioner) {
Objects.requireNonNull(zjsonPatchVersion, "zjsonPatchVersion cannot be null");
Objects.requireNonNull(patchString, "patchString cannot be null");
Objects.requireNonNull(provisioner, "provisioner cannot be null");
return FormatterStep.create(NAME,
new JsonPatchStep(JarState.promise(() -> JarState.from(MAVEN_COORDINATE + ":" + zjsonPatchVersion, provisioner)), patchString, null),
JsonPatchStep::equalityState,
State::toFormatter);
}
public static FormatterStep create(List<Map<String, Object>> patch, Provisioner provisioner) {
return create(DEFAULT_VERSION, patch, provisioner);
}
public static FormatterStep create(String zjsonPatchVersion, List<Map<String, Object>> patch, Provisioner provisioner) {
Objects.requireNonNull(zjsonPatchVersion, "zjsonPatchVersion cannot be null");
Objects.requireNonNull(patch, "patch cannot be null");
Objects.requireNonNull(provisioner, "provisioner cannot be null");
return FormatterStep.create(NAME,
new JsonPatchStep(JarState.promise(() -> JarState.from(MAVEN_COORDINATE + ":" + zjsonPatchVersion, provisioner)), null, patch),
JsonPatchStep::equalityState,
State::toFormatter);
}
private State equalityState() {
return new State(jarState.get(), patchString, patch);
}
static final class State implements Serializable {
private static final long serialVersionUID = 1L;
private final JarState jarState;
@Nullable
private final List<Map<String, Object>> patch;
@Nullable
private final String patchString;
State(JarState jarState,
@Nullable String patchString,
@Nullable List<Map<String, Object>> patch) {
this.jarState = jarState;
this.patchString = patchString;
this.patch = patch;
}
FormatterFunc toFormatter() throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException, InstantiationException, IllegalAccessException {
Class<?> formatterFunc = jarState.getClassLoader().loadClass("com.diffplug.spotless.glue.json.JsonPatchFormatterFunc");
if (this.patch != null) {
Constructor<?> constructor = formatterFunc.getConstructor(List.class);
return (FormatterFunc) constructor.newInstance(patch);
} else {
Constructor<?> constructor = formatterFunc.getConstructor(String.class);
return (FormatterFunc) constructor.newInstance(patchString);
}
}
}
}