io.spring.initializr.generator.language.Annotation Maven / Gradle / Ivy
/*
* Copyright 2012-2019 the original author or authors.
*
* 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
*
* https://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 io.spring.initializr.generator.language;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Consumer;
/**
* An annotation.
*
* @author Andy Wilkinson
* @author Stephane Nicoll
*/
public final class Annotation {
private final String name;
private final List attributes;
private Annotation(Builder builder) {
this.name = builder.name;
this.attributes = Collections.unmodifiableList(new ArrayList<>(builder.attributes.values()));
}
public String getName() {
return this.name;
}
public List getAttributes() {
return this.attributes;
}
public static Annotation name(String name) {
return name(name, null);
}
public static Annotation name(String name, Consumer annotation) {
Builder builder = new Builder(name);
if (annotation != null) {
annotation.accept(builder);
}
return new Annotation(builder);
}
/**
* Builder for creating an {@link Annotation}.
*/
public static final class Builder {
private final String name;
private final Map attributes = new LinkedHashMap<>();
private Builder(String name) {
this.name = name;
}
public Builder attribute(String name, Class type, String... values) {
this.attributes.put(name, new Attribute(name, type, values));
return this;
}
}
/**
* Define an attribute of an annotation.
*/
public static final class Attribute {
private final String name;
private final Class type;
private final List values;
private Attribute(String name, Class type, String... values) {
this.name = name;
this.type = type;
this.values = Arrays.asList(values);
}
public String getName() {
return this.name;
}
public Class getType() {
return this.type;
}
public List getValues() {
return this.values;
}
}
}