spring-kafka JacksonPresent 源码
spring-kafka JacksonPresent 代码
文件路径：/spring-kafka/src/main/java/org/springframework/kafka/support/JacksonPresent.java
/*
* Copyright 2017-2019 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 org.springframework.kafka.support;
import org.springframework.util.ClassUtils;
/**
* The utility to check if Jackson JSON processor is present in the classpath.
*
* @author Artem Bilan
* @author Gary Russell
*
* @since 1.3
*/
public final class JacksonPresent {
private static final ClassLoader classLoader = ClassUtils.getDefaultClassLoader(); // NOSONAR
private static final boolean jackson2Present = // NOSONAR
ClassUtils.isPresent("com.fasterxml.jackson.databind.ObjectMapper", classLoader) &&
ClassUtils.isPresent("com.fasterxml.jackson.core.JsonGenerator", classLoader);
public static boolean isJackson2Present() {
return jackson2Present;
}
private JacksonPresent() {
}
}
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