Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $
You can buy this project and download/modify it how often you want.
com.anwen.mongo.toolkit.LambdaOperate Maven / Gradle / Ivy
package com.anwen.mongo.toolkit;
import com.anwen.mongo.conditions.BuildCondition;
import com.anwen.mongo.conditions.interfaces.aggregate.pipeline.Projection;
import com.anwen.mongo.conditions.interfaces.condition.CompareCondition;
import com.anwen.mongo.conditions.interfaces.condition.Order;
import com.anwen.mongo.convert.Converter;
import com.anwen.mongo.convert.DocumentMapperConvert;
import com.anwen.mongo.model.BaseLambdaQueryResult;
import com.anwen.mongo.model.PageParam;
import com.anwen.mongo.model.PageResult;
import com.mongodb.BasicDBObject;
import com.mongodb.client.FindIterable;
import com.mongodb.client.MongoCursor;
import org.bson.Document;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.reflect.InvocationTargetException;
import java.util.List;
import java.util.Map;
/**
* lambda形式调用，预构建条件
*
* @author JiaChaoYang
* @project mongo-plus
* @date 2023-12-28 17:03
**/
public class LambdaOperate {
Logger logger = LoggerFactory.getLogger(LambdaOperate.class);
public List getLambdaQueryResult(FindIterable iterable, Class clazz) {
return DocumentMapperConvert.mapDocumentList(iterable, clazz);
}
public T getLambdaQueryResultOne(FindIterable iterable, Class clazz) {
try (MongoCursor cursor = iterable.iterator()) {
if (cursor.hasNext()) {
return DocumentMapperConvert.mapDocument(cursor.next(), clazz);
}
return null;
}
}
public List> getLambdaQueryResult(FindIterable iterable,Integer size) {
return Converter.convertDocumentToMap(iterable,size);
}
public BaseLambdaQueryResult baseLambdaQuery(List compareConditionList, List orderList,List projectionList,List basicDBObjectList) {
BasicDBObject sortCond = new BasicDBObject();
if (CollUtil.isNotEmpty(orderList)) {
orderList.forEach(order -> sortCond.put(order.getColumn(), order.getType()));
}
BasicDBObject basicDBObject = BuildCondition.buildQueryCondition(compareConditionList);
if (CollUtil.isNotEmpty(basicDBObjectList)){
basicDBObjectList.forEach(basic -> {
basicDBObject.putAll(basic.toMap());
});
}
return new BaseLambdaQueryResult(basicDBObject,BuildCondition.buildProjection(projectionList),sortCond);
}
public PageResult getLambdaQueryResultPage(FindIterable documentFindIterable,long totalSize, PageParam pageParams,Class clazz) {
PageResult pageResult = new PageResult<>();
pageResult.setPageNum(pageParams.getPageNum());
pageResult.setPageSize(pageParams.getPageSize());
pageResult.setContentData(DocumentMapperConvert.mapDocumentList(documentFindIterable.skip((pageParams.getPageNum() - 1) * pageParams.getPageSize()).limit(pageParams.getPageSize()), clazz));
// 不查询总条数，总条数=当前页的总数
if (totalSize == -1) {
totalSize = pageResult.getContentData().size();
}
pageResult.setTotalSize(totalSize);
pageResult.setTotalPages((totalSize + pageParams.getPageSize() - 1) / pageParams.getPageSize());
return pageResult;
}
public PageResult> getLambdaQueryResultPage(FindIterable documentFindIterable,long totalSize, PageParam pageParams) {
PageResult> pageResult = new PageResult<>();
pageResult.setPageNum(pageParams.getPageNum());
pageResult.setPageSize(pageParams.getPageSize());
pageResult.setTotalSize(totalSize);
pageResult.setTotalPages((totalSize + pageParams.getPageSize() - 1) / pageParams.getPageSize());
pageResult.setContentData(Converter.convertDocumentToMap(documentFindIterable.skip((pageParams.getPageNum() - 1) * pageParams.getPageSize()).limit(pageParams.getPageSize())));
return pageResult;
}
// public PageResult> getLambdaQueryResultPage(String collectionName, List compareConditionList, List orderList,List projectionList,List basicDBObjectList, PageParam pageParams) {
// return getLambdaQueryResultPage(MongoTransactionContext.getClientSessionContext(),collectionName,compareConditionList,orderList,projectionList,basicDBObjectList,pageParams);
// }
//
// public PageResult> getLambdaQueryResultPage(ClientSession clientSession,String collectionName, List compareConditionList, List orderList,List projectionList,List basicDBObjectList, PageParam pageParams) {
// PageResult> pageResult = new PageResult<>();
// FindIterable documentFindIterable = baseLambdaQuery(clientSession,collectionName, compareConditionList, orderList,projectionList,basicDBObjectList);
// long totalSize = doCount(collectionName,compareConditionList);
// pageResult.setPageNum(pageParams.getPageNum());
// pageResult.setPageSize(pageParams.getPageSize());
// pageResult.setTotalSize(totalSize);
// pageResult.setTotalPages((totalSize + pageParams.getPageSize() - 1) / pageParams.getPageSize());
// pageResult.setContentData(Converter.convertDocumentToMap(documentFindIterable.skip((pageParams.getPageNum() - 1) * pageParams.getPageSize()).limit(pageParams.getPageSize())));
// return pageResult;
// }
}
