net.dreamlu.mica.mongo.utils.JsonNodeInfo Maven / Gradle / Ivy
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/*
* Copyright (c) 2019-2029, Dreamlu 卢春梦 ([email protected] & www.dreamlu.net).
*
* Licensed under the GNU LESSER GENERAL PUBLIC LICENSE 3.0;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.gnu.org/licenses/lgpl.html
*
* 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 net.dreamlu.mica.mongo.utils;
import com.fasterxml.jackson.databind.JsonNode;
import lombok.Getter;
import org.springframework.util.Assert;
import java.util.LinkedList;
import java.util.StringJoiner;
/**
* json tree 节点信息
*
* @author L.cm
*/
@Getter
public class JsonNodeInfo {
/**
* mongo keys: class1.class2.item
*/
private final String nodeKeys;
/**
* jsonPath语法：/class1/class2/item
*/
private final String nodePath;
/**
* 节点关系
*/
private final LinkedList elements;
/**
* tree 的 叶子节点，此处为引用
*/
private final JsonNode leafNode;
public JsonNodeInfo(LinkedList elements, JsonNode leafNode) {
Assert.notNull(elements, "elements can not be null.");
this.nodeKeys = getNodeKeys(elements);
this.nodePath = getNodePath(elements);
this.elements = elements;
this.leafNode = leafNode;
}
/**
* 获取 mongo db的 key 语法
*
* @return mongo db的 key 语法
*/
private static String getNodeKeys(LinkedList elements) {
StringJoiner nodeKeysJoiner = new StringJoiner(".");
elements.forEach(nodeKeysJoiner::add);
return nodeKeysJoiner.toString();
}
/**
* 获取 json path 语法路径
*
* @return jsonPath 路径
*/
private static String getNodePath(LinkedList elements) {
StringJoiner nodePathJoiner = new StringJoiner("/", "/", "");
elements.forEach(nodePathJoiner::add);
return nodePathJoiner.toString();
}
/**
* 获取第一个元素
*
* @return element
*/
public String getFirst() {
return elements.getFirst();
}
}