org.springframework.boot.json.JsonParserFactory Maven / Gradle / Ivy
/*
* Copyright 2012-2018 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 org.springframework.boot.json;
import org.springframework.util.ClassUtils;
/**
* Factory to create a {@link JsonParser}.
*
* @author Dave Syer
* @see JacksonJsonParser
* @see GsonJsonParser
* @see YamlJsonParser
* @see BasicJsonParser
*/
public abstract class JsonParserFactory {
/**
* Static factory for the "best" JSON parser available on the classpath. Tries
* Jackson, then Gson, Snake YAML, and then falls back to the {@link BasicJsonParser}.
* @return a {@link JsonParser}
*/
public static JsonParser getJsonParser() {
if (ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", null)) {
return new JacksonJsonParser();
}
if (ClassUtils.isPresent("com.google.gson.Gson", null)) {
return new GsonJsonParser();
}
if (ClassUtils.isPresent("org.yaml.snakeyaml.Yaml", null)) {
return new YamlJsonParser();
}
return new BasicJsonParser();
}
}