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org.flowable.ui.modeler.service.FlowableModelQueryService Maven / Gradle / Ivy
/* 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
*
* http://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.flowable.ui.modeler.service;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLStreamReader;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.NameValuePair;
import org.apache.http.client.utils.URLEncodedUtils;
import org.flowable.bpmn.BpmnAutoLayout;
import org.flowable.bpmn.converter.BpmnXMLConverter;
import org.flowable.bpmn.model.BpmnModel;
import org.flowable.cmmn.converter.CmmnXmlConverter;
import org.flowable.cmmn.editor.json.converter.CmmnJsonConverter;
import org.flowable.cmmn.model.Case;
import org.flowable.cmmn.model.CmmnModel;
import org.flowable.editor.language.json.converter.BpmnJsonConverter;
import org.flowable.editor.language.json.converter.util.CollectionUtils;
import org.flowable.ui.common.model.ResultListDataRepresentation;
import org.flowable.ui.common.security.SecurityUtils;
import org.flowable.ui.common.service.exception.BadRequestException;
import org.flowable.ui.common.service.exception.InternalServerErrorException;
import org.flowable.ui.common.util.XmlUtil;
import org.flowable.ui.modeler.domain.AbstractModel;
import org.flowable.ui.modeler.domain.AppDefinition;
import org.flowable.ui.modeler.domain.Model;
import org.flowable.ui.modeler.model.AppDefinitionListModelRepresentation;
import org.flowable.ui.modeler.model.ModelRepresentation;
import org.flowable.ui.modeler.repository.ModelRepository;
import org.flowable.ui.modeler.repository.ModelSort;
import org.flowable.ui.modeler.serviceapi.ModelService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.multipart.MultipartFile;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
/**
* @author Tijs Rademakers
*/
@Service
@Transactional
public class FlowableModelQueryService {
private static final Logger LOGGER = LoggerFactory.getLogger(FlowableModelQueryService.class);
protected static final String FILTER_SHARED_WITH_ME = "sharedWithMe";
protected static final String FILTER_SHARED_WITH_OTHERS = "sharedWithOthers";
protected static final String FILTER_FAVORITE = "favorite";
protected static final int MIN_FILTER_LENGTH = 1;
@Autowired
protected ModelRepository modelRepository;
@Autowired
protected ModelService modelService;
@Autowired
protected ObjectMapper objectMapper;
protected BpmnXMLConverter bpmnXmlConverter = new BpmnXMLConverter();
protected BpmnJsonConverter bpmnJsonConverter = new BpmnJsonConverter();
protected CmmnXmlConverter cmmnXmlConverter = new CmmnXmlConverter();
protected CmmnJsonConverter cmmnJsonConverter = new CmmnJsonConverter();
public ResultListDataRepresentation getModels(String filter, String sort, Integer modelType, HttpServletRequest request) {
// need to parse the filterText parameter ourselves, due to encoding issues with the default parsing.
String filterText = null;
List params = URLEncodedUtils.parse(request.getQueryString(), Charset.forName("UTF-8"));
if (params != null) {
for (NameValuePair nameValuePair : params) {
if ("filterText".equalsIgnoreCase(nameValuePair.getName())) {
filterText = nameValuePair.getValue();
}
}
}
List resultList = new ArrayList<>();
List models = null;
String validFilter = makeValidFilterText(filterText);
if (validFilter != null) {
models = modelRepository.findByModelTypeAndFilter(modelType, validFilter, sort);
} else {
models = modelRepository.findByModelType(modelType, sort);
}
if (CollectionUtils.isNotEmpty(models)) {
List addedModelIds = new ArrayList<>();
for (Model model : models) {
if (!addedModelIds.contains(model.getId())) {
addedModelIds.add(model.getId());
ModelRepresentation representation = createModelRepresentation(model);
resultList.add(representation);
}
}
}
ResultListDataRepresentation result = new ResultListDataRepresentation(resultList);
return result;
}
public ResultListDataRepresentation getModelsToIncludeInAppDefinition() {
List resultList = new ArrayList<>();
List addedModelIds = new ArrayList<>();
List models = modelRepository.findByModelType(AbstractModel.MODEL_TYPE_BPMN, ModelSort.MODIFIED_DESC);
if (CollectionUtils.isNotEmpty(models)) {
for (Model model : models) {
if (!addedModelIds.contains(model.getId())) {
addedModelIds.add(model.getId());
ModelRepresentation representation = createModelRepresentation(model);
resultList.add(representation);
}
}
}
ResultListDataRepresentation result = new ResultListDataRepresentation(resultList);
return result;
}
public ResultListDataRepresentation getCmmnModelsToIncludeInAppDefinition() {
List resultList = new ArrayList<>();
List addedModelIds = new ArrayList<>();
List models = modelRepository.findByModelType(AbstractModel.MODEL_TYPE_CMMN, ModelSort.MODIFIED_DESC);
if (CollectionUtils.isNotEmpty(models)) {
for (Model model : models) {
if (!addedModelIds.contains(model.getId())) {
addedModelIds.add(model.getId());
ModelRepresentation representation = createModelRepresentation(model);
resultList.add(representation);
}
}
}
ResultListDataRepresentation result = new ResultListDataRepresentation(resultList);
return result;
}
public ModelRepresentation importProcessModel(HttpServletRequest request, MultipartFile file) {
String fileName = file.getOriginalFilename();
if (fileName != null && (fileName.endsWith(".bpmn") || fileName.endsWith(".bpmn20.xml"))) {
try {
XMLInputFactory xif = XmlUtil.createSafeXmlInputFactory();
InputStreamReader xmlIn = new InputStreamReader(file.getInputStream(), "UTF-8");
XMLStreamReader xtr = xif.createXMLStreamReader(xmlIn);
BpmnModel bpmnModel = bpmnXmlConverter.convertToBpmnModel(xtr);
if (CollectionUtils.isEmpty(bpmnModel.getProcesses())) {
throw new BadRequestException("No process found in definition " + fileName);
}
if (bpmnModel.getLocationMap().size() == 0) {
BpmnAutoLayout bpmnLayout = new BpmnAutoLayout(bpmnModel);
bpmnLayout.execute();
}
ObjectNode modelNode = bpmnJsonConverter.convertToJson(bpmnModel);
org.flowable.bpmn.model.Process process = bpmnModel.getMainProcess();
String name = process.getId();
if (StringUtils.isNotEmpty(process.getName())) {
name = process.getName();
}
String description = process.getDocumentation();
ModelRepresentation model = new ModelRepresentation();
model.setKey(process.getId());
model.setName(name);
model.setDescription(description);
model.setModelType(AbstractModel.MODEL_TYPE_BPMN);
Model newModel = modelService.createModel(model, modelNode.toString(), SecurityUtils.getCurrentUserObject());
return new ModelRepresentation(newModel);
} catch (BadRequestException e) {
throw e;
} catch (Exception e) {
LOGGER.error("Import failed for {}", fileName, e);
throw new BadRequestException("Import failed for " + fileName + ", error message " + e.getMessage());
}
} else {
throw new BadRequestException("Invalid file name, only .bpmn and .bpmn20.xml files are supported not " + fileName);
}
}
public ModelRepresentation importCaseModel(HttpServletRequest request, MultipartFile file) {
String fileName = file.getOriginalFilename();
if (fileName != null && (fileName.endsWith(".cmmn") || fileName.endsWith(".cmmn.xml"))) {
try {
XMLInputFactory xif = XmlUtil.createSafeXmlInputFactory();
InputStreamReader xmlIn = new InputStreamReader(file.getInputStream(), "UTF-8");
XMLStreamReader xtr = xif.createXMLStreamReader(xmlIn);
CmmnModel cmmnModel = cmmnXmlConverter.convertToCmmnModel(xtr);
if (CollectionUtils.isEmpty(cmmnModel.getCases())) {
throw new BadRequestException("No cases found in definition " + fileName);
}
if (cmmnModel.getLocationMap().size() == 0) {
throw new BadRequestException("No CMMN DI found in definition " + fileName);
}
ObjectNode modelNode = cmmnJsonConverter.convertToJson(cmmnModel);
Case caseModel = cmmnModel.getPrimaryCase();
String name = caseModel.getId();
if (StringUtils.isNotEmpty(caseModel.getName())) {
name = caseModel.getName();
}
String description = caseModel.getDocumentation();
ModelRepresentation model = new ModelRepresentation();
model.setKey(caseModel.getId());
model.setName(name);
model.setDescription(description);
model.setModelType(AbstractModel.MODEL_TYPE_CMMN);
Model newModel = modelService.createModel(model, modelNode.toString(), SecurityUtils.getCurrentUserObject());
return new ModelRepresentation(newModel);
} catch (BadRequestException e) {
throw e;
} catch (Exception e) {
LOGGER.error("Import failed for {}", fileName, e);
throw new BadRequestException("Import failed for " + fileName + ", error message " + e.getMessage());
}
} else {
throw new BadRequestException("Invalid file name, only .cmmn and .cmmn.xml files are supported not " + fileName);
}
}
protected ModelRepresentation createModelRepresentation(AbstractModel model) {
ModelRepresentation representation = null;
if (model.getModelType() != null && model.getModelType() == 3) {
representation = new AppDefinitionListModelRepresentation(model);
AppDefinition appDefinition = null;
try {
appDefinition = objectMapper.readValue(model.getModelEditorJson(), AppDefinition.class);
} catch (Exception e) {
LOGGER.error("Error deserializing app {}", model.getId(), e);
throw new InternalServerErrorException("Could not deserialize app definition");
}
((AppDefinitionListModelRepresentation) representation).setAppDefinition(appDefinition);
} else {
representation = new ModelRepresentation(model);
}
return representation;
}
protected String makeValidFilterText(String filterText) {
String validFilter = null;
if (filterText != null) {
String trimmed = StringUtils.trim(filterText);
if (trimmed.length() >= MIN_FILTER_LENGTH) {
validFilter = "%" + trimmed.toLowerCase() + "%";
}
}
return validFilter;
}
}
