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System provides workflow management functions including user, role and data management.
package com.netgrif.application.engine.elastic.service;
import com.netgrif.application.engine.auth.domain.LoggedUser;
import com.netgrif.application.engine.elastic.domain.ElasticCase;
import com.netgrif.application.engine.elastic.domain.ElasticCaseRepository;
import com.netgrif.application.engine.elastic.domain.ElasticQueryConstants;
import com.netgrif.application.engine.elastic.service.executors.Executor;
import com.netgrif.application.engine.elastic.service.interfaces.IElasticCasePrioritySearch;
import com.netgrif.application.engine.elastic.service.interfaces.IElasticCaseService;
import com.netgrif.application.engine.elastic.web.requestbodies.CaseSearchRequest;
import com.netgrif.application.engine.petrinet.service.interfaces.IPetriNetService;
import com.netgrif.application.engine.petrinet.web.responsebodies.PetriNetReference;
import com.netgrif.application.engine.utils.FullPageRequest;
import com.netgrif.application.engine.workflow.domain.Case;
import com.netgrif.application.engine.workflow.service.interfaces.IWorkflowService;
import org.elasticsearch.index.query.BoolQueryBuilder;
import org.elasticsearch.index.query.QueryBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Lazy;
import org.springframework.dao.InvalidDataAccessApiUsageException;
import org.springframework.data.domain.*;
import org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate;
import org.springframework.data.elasticsearch.core.SearchHitSupport;
import org.springframework.data.elasticsearch.core.SearchHits;
import org.springframework.data.elasticsearch.core.mapping.IndexCoordinates;
import org.springframework.data.elasticsearch.core.query.NativeSearchQuery;
import org.springframework.data.elasticsearch.core.query.NativeSearchQueryBuilder;
import org.springframework.data.elasticsearch.core.query.Order;
import org.springframework.stereotype.Service;
import java.util.*;
import java.util.function.BinaryOperator;
import java.util.stream.Collectors;
import static org.elasticsearch.index.query.QueryBuilders.*;
@Service
public class ElasticCaseService extends ElasticViewPermissionService implements IElasticCaseService {
private static final Logger log = LoggerFactory.getLogger(ElasticCaseService.class);
private ElasticCaseRepository repository;
private IWorkflowService workflowService;
@Value("${spring.data.elasticsearch.index.case}")
private String caseIndex;
@Autowired
private ElasticsearchRestTemplate template;
private Executor executors;
@Autowired
private IPetriNetService petriNetService;
@Autowired
private IElasticCasePrioritySearch iElasticCasePrioritySearch;
@Autowired
public ElasticCaseService(ElasticCaseRepository repository, ElasticsearchRestTemplate template, Executor executors) {
this.repository = repository;
this.template = template;
this.executors = executors;
}
@Autowired
@Lazy
public void setWorkflowService(IWorkflowService workflowService) {
this.workflowService = workflowService;
}
@Override
public void remove(String caseId) {
executors.execute(caseId, () -> {
repository.deleteAllByStringId(caseId);
log.info("[" + caseId + "]: Case \"" + caseId + "\" deleted");
});
}
@Override
public void removeByPetriNetId(String processId) {
executors.execute(processId, () -> {
repository.deleteAllByProcessId(processId);
log.info("[" + processId + "]: All cases of Petri Net with id \"" + processId + "\" deleted");
});
}
@Override
public void index(ElasticCase useCase) {
executors.execute(useCase.getStringId(), () -> {
try {
ElasticCase elasticCase = repository.findByStringId(useCase.getStringId());
if (elasticCase == null) {
repository.save(useCase);
} else {
elasticCase.update(useCase);
repository.save(elasticCase);
}
log.debug("[" + useCase.getStringId() + "]: Case \"" + useCase.getTitle() + "\" indexed");
} catch (InvalidDataAccessApiUsageException ignored) {
log.debug("[" + useCase.getStringId() + "]: Case \"" + useCase.getTitle() + "\" has duplicates, will be reindexed");
repository.deleteAllByStringId(useCase.getStringId());
repository.save(useCase);
log.debug("[" + useCase.getStringId() + "]: Case \"" + useCase.getTitle() + "\" indexed");
}
});
}
@Override
public void indexNow(ElasticCase useCase) {
index(useCase);
}
@Override
public Page search(List requests, LoggedUser user, Pageable pageable, Locale locale, Boolean isIntersection) {
if (requests == null) {
throw new IllegalArgumentException("Request can not be null!");
}
LoggedUser loggedOrImpersonated = user.getSelfOrImpersonated();
pageable = resolveUnmappedSortAttributes(pageable);
NativeSearchQuery query = buildQuery(requests, loggedOrImpersonated, pageable, locale, isIntersection);
List casePage;
long total;
if (query != null) {
SearchHits hits = template.search(query, ElasticCase.class, IndexCoordinates.of(caseIndex));
Page indexedCases = (Page) SearchHitSupport.unwrapSearchHits(SearchHitSupport.searchPageFor(hits, query.getPageable()));
casePage = workflowService.findAllById(indexedCases.get().map(ElasticCase::getStringId).collect(Collectors.toList()));
total = indexedCases.getTotalElements();
} else {
casePage = Collections.emptyList();
total = 0;
}
return new PageImpl<>(casePage, pageable, total);
}
@Override
public long count(List requests, LoggedUser user, Locale locale, Boolean isIntersection) {
if (requests == null) {
throw new IllegalArgumentException("Request can not be null!");
}
LoggedUser loggedOrImpersonated = user.getSelfOrImpersonated();
NativeSearchQuery query = buildQuery(requests, loggedOrImpersonated, new FullPageRequest(), locale, isIntersection);
if (query != null) {
return template.count(query, ElasticCase.class);
} else {
return 0;
}
}
private NativeSearchQuery buildQuery(List requests, LoggedUser user, Pageable pageable, Locale locale, Boolean isIntersection) {
List singleQueries = requests.stream().map(request -> buildSingleQuery(request, user, locale)).collect(Collectors.toList());
if (isIntersection && !singleQueries.stream().allMatch(Objects::nonNull)) {
// one of the queries evaluates to empty set => the entire result is an empty set
return null;
} else if (!isIntersection) {
singleQueries = singleQueries.stream().filter(Objects::nonNull).collect(Collectors.toList());
if (singleQueries.size() == 0) {
// all queries result in an empty set => the entire result is an empty set
return null;
}
}
BinaryOperator reductionOperator = isIntersection ? BoolQueryBuilder::must : BoolQueryBuilder::should;
BoolQueryBuilder query = singleQueries.stream().reduce(new BoolQueryBuilder(), reductionOperator);
NativeSearchQueryBuilder builder = new NativeSearchQueryBuilder();
return builder
.withQuery(query)
.withPageable(pageable)
.build();
}
private BoolQueryBuilder buildSingleQuery(CaseSearchRequest request, LoggedUser user, Locale locale) {
BoolQueryBuilder query = boolQuery();
buildViewPermissionQuery(query, user);
buildPetriNetQuery(request, user, query);
buildAuthorQuery(request, query);
buildTaskQuery(request, query);
buildRoleQuery(request, query);
buildDataQuery(request, query);
buildFullTextQuery(request, query);
buildStringQuery(request, query, user);
buildCaseIdQuery(request, query);
buildUriNodeIdQuery(request, query);
boolean resultAlwaysEmpty = buildGroupQuery(request, user, locale, query);
// TODO: filtered query https://stackoverflow.com/questions/28116404/filtered-query-using-nativesearchquerybuilder-in-spring-data-elasticsearch
if (resultAlwaysEmpty)
return null;
else
return query;
}
private void buildPetriNetQuery(CaseSearchRequest request, LoggedUser user, BoolQueryBuilder query) {
if (request.process == null || request.process.isEmpty()) {
return;
}
BoolQueryBuilder petriNetQuery = boolQuery();
for (CaseSearchRequest.PetriNet process : request.process) {
if (process.identifier != null) {
petriNetQuery.should(termQuery("processIdentifier", process.identifier));
}
if (process.processId != null) {
petriNetQuery.should(termQuery("processId", process.processId));
}
}
query.filter(petriNetQuery);
}
/**
*
* {
* "author": {
* "email": "[email protected]"
* }
* }
*
*
* Cases with author with (id 1 AND email "[email protected]") OR (id 2)
*
* {
* "author": [{
* "id": 1
* "email": "[email protected]"
* }, {
* "id": 2
* }
* ]
* }
*
*/
private void buildAuthorQuery(CaseSearchRequest request, BoolQueryBuilder query) {
if (request.author == null || request.author.isEmpty()) {
return;
}
BoolQueryBuilder authorsQuery = boolQuery();
for (CaseSearchRequest.Author author : request.author) {
BoolQueryBuilder authorQuery = boolQuery();
if (author.email != null) {
authorQuery.must(termQuery("authorEmail", author.email));
}
if (author.id != null) {
authorQuery.must(matchQuery("author", author.id));
}
if (author.name != null) {
authorQuery.must(termQuery("authorName", author.name));
}
authorsQuery.should(authorQuery);
}
query.filter(authorsQuery);
}
/**
* Cases with tasks with import Id "nova_uloha"
*
* {
* "transition": "nova_uloha"
* }
*
*
* Cases with tasks with import Id "nova_uloha" OR "kontrola"
*
* {
* "transition": [
* "nova_uloha",
* "kontrola"
* ]
* }
*
*/
private void buildTaskQuery(CaseSearchRequest request, BoolQueryBuilder query) {
if (request.transition == null || request.transition.isEmpty()) {
return;
}
BoolQueryBuilder taskQuery = boolQuery();
for (String taskImportId : request.transition) {
taskQuery.should(termQuery("taskIds", taskImportId));
}
query.filter(taskQuery);
}
/**
* Cases with active role "5cb07b6ff05be15f0b972c36"
*
* {
* "role": "5cb07b6ff05be15f0b972c36"
* }
*
*
* Cases with active role "5cb07b6ff05be15f0b972c36" OR "5cb07b6ff05be15f0b972c31"
*
* {
* "role" [
* "5cb07b6ff05be15f0b972c36",
* "5cb07b6ff05be15f0b972c31"
* ]
* }
*
*/
private void buildRoleQuery(CaseSearchRequest request, BoolQueryBuilder query) {
if (request.role == null || request.role.isEmpty()) {
return;
}
BoolQueryBuilder roleQuery = boolQuery();
for (String roleId : request.role) {
roleQuery.should(termQuery("enabledRoles", roleId));
}
query.filter(roleQuery);
}
/**
* Cases where "text_field" has value EXACTLY "text" AND "number_field" has value EXACTLY "125".
*
* {
* "data": {
* "text_field": "text",
* "number_field": "125"
* }
* }
*
*/
private void buildDataQuery(CaseSearchRequest request, BoolQueryBuilder query) {
if (request.data == null || request.data.isEmpty()) {
return;
}
BoolQueryBuilder dataQuery = boolQuery();
for (Map.Entry field : request.data.entrySet()) {
if (field.getKey().contains("."))
dataQuery.must(termQuery("dataSet." + field.getKey(), field.getValue()));
else
dataQuery.must(termQuery("dataSet." + field.getKey() + ".fulltextValue.keyword", field.getValue()));
}
query.filter(dataQuery);
}
private void buildFullTextQuery(CaseSearchRequest request, BoolQueryBuilder query) {
if (request.fullText == null || request.fullText.isEmpty()) {
return;
}
// TODO: improvement? wildcard does not scale good
QueryBuilder fullTextQuery = queryStringQuery("*" + request.fullText + "*").fields(iElasticCasePrioritySearch.fullTextFields());
query.must(fullTextQuery);
}
/**
* See Query String Query
*/
private void buildStringQuery(CaseSearchRequest request, BoolQueryBuilder query, LoggedUser user) {
if (request.query == null || request.query.isEmpty()) {
return;
}
String populatedQuery = request.query.replaceAll(ElasticQueryConstants.USER_ID_TEMPLATE, user.getId().toString());
query.must(queryStringQuery(populatedQuery).allowLeadingWildcard(true).analyzeWildcard(true));
}
/**
* Case with stringId "5cb07b6ff05be15f0b972c36"
*
* {
* "stringId": "5cb07b6ff05be15f0b972c36"
* }
*
*
* Cases with stringId "5cb07b6ff05be15f0b972c36" OR "5cb07b6ff05be15f0b972c31"
*
* {
* "stringId" [
* "5cb07b6ff05be15f0b972c36",
* "5cb07b6ff05be15f0b972c31"
* ]
* }
*
*/
private void buildCaseIdQuery(CaseSearchRequest request, BoolQueryBuilder query) {
if (request.stringId == null || request.stringId.isEmpty()) {
return;
}
BoolQueryBuilder caseIdQuery = boolQuery();
request.stringId.forEach(caseId -> caseIdQuery.should(termQuery("stringId", caseId)));
query.filter(caseIdQuery);
}
private void buildUriNodeIdQuery(CaseSearchRequest request, BoolQueryBuilder query) {
if (request.uriNodeId == null || request.uriNodeId.isEmpty()) {
return;
}
BoolQueryBuilder caseIdQuery = boolQuery();
caseIdQuery.should(termQuery("uriNodeId", request.uriNodeId));
query.filter(caseIdQuery);
}
/**
* Cases that are instances of processes of group "5cb07b6ff05be15f0b972c36"
*
* {
* "group": "5cb07b6ff05be15f0b972c36"
* }
*
*
* Cases that are instances of processes of group "5cb07b6ff05be15f0b972c36" OR "5cb07b6ff05be15f0b972c31"
*
* {
* "group" [
* "5cb07b6ff05be15f0b972c36",
* "5cb07b6ff05be15f0b972c31"
* ]
* }
*
*/
private boolean buildGroupQuery(CaseSearchRequest request, LoggedUser user, Locale locale, BoolQueryBuilder query) {
if (request.group == null || request.group.isEmpty()) {
return false;
}
Map processQuery = new HashMap<>();
processQuery.put("group", request.group);
List groupProcesses = this.petriNetService.search(processQuery, user, new FullPageRequest(), locale).getContent();
if (groupProcesses.size() == 0)
return true;
BoolQueryBuilder groupQuery = boolQuery();
groupProcesses.stream().map(PetriNetReference::getIdentifier)
.map(netIdentifier -> termQuery("processIdentifier", netIdentifier))
.forEach(groupQuery::should);
query.filter(groupQuery);
return false;
}
private Pageable resolveUnmappedSortAttributes(Pageable pageable) {
List modifiedOrders = new ArrayList<>();
pageable.getSort().iterator().forEachRemaining(order -> modifiedOrders.add(new Order(order.getDirection(), order.getProperty()).withUnmappedType("keyword")));
return PageRequest.of(pageable.getPageNumber(), pageable.getPageSize()).withSort(Sort.by(modifiedOrders));
}
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