spring AbstractJsonParser 源码
springboot AbstractJsonParser 代码
文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/json/AbstractJsonParser.java
/*
* 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 org.springframework.boot.json;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.function.Function;
import org.springframework.util.ReflectionUtils;
/**
* Base class for parsers wrapped or implemented in this package.
*
* @author Anton Telechev
* @author Phillip Webb
* @since 2.0.1
*/
public abstract class AbstractJsonParser implements JsonParser {
protected final Map<String, Object> parseMap(String json, Function<String, Map<String, Object>> parser) {
return trimParse(json, "{", parser);
}
protected final List<Object> parseList(String json, Function<String, List<Object>> parser) {
return trimParse(json, "[", parser);
}
protected final <T> T trimParse(String json, String prefix, Function<String, T> parser) {
String trimmed = (json != null) ? json.trim() : "";
if (trimmed.startsWith(prefix)) {
return parser.apply(trimmed);
}
throw new JsonParseException();
}
protected final <T> T tryParse(Callable<T> parser, Class<? extends Exception> check) {
try {
return parser.call();
}
catch (Exception ex) {
if (check.isAssignableFrom(ex.getClass())) {
throw new JsonParseException(ex);
}
ReflectionUtils.rethrowRuntimeException(ex);
throw new IllegalStateException(ex);
}
}
}
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- 本文标签： Spring Boot Java Spring
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