package com.ycl.controller;
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import com.alibaba.fastjson2.JSONObject;
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import com.fasterxml.jackson.databind.JsonNode;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.node.ObjectNode;
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import lombok.RequiredArgsConstructor;
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import org.apache.commons.lang3.StringUtils;
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import org.flowable.bpmn.model.BpmnModel;
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import org.flowable.editor.constants.ModelDataJsonConstants;
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import org.flowable.editor.language.json.converter.BpmnJsonConverter;
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import org.flowable.engine.IdentityService;
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import org.flowable.engine.RepositoryService;
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import org.flowable.engine.RuntimeService;
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import org.flowable.engine.TaskService;
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import org.flowable.engine.repository.Model;
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import org.flowable.validation.ProcessValidator;
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import org.flowable.validation.ProcessValidatorFactory;
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import org.flowable.validation.ValidationError;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.http.MediaType;
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import org.springframework.util.MultiValueMap;
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import org.springframework.web.bind.annotation.*;
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import java.io.IOException;
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import java.io.UnsupportedEncodingException;
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import java.util.Collections;
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import java.util.List;
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@RestController
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@RequiredArgsConstructor
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@RequestMapping("/app/rest/")
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public class FlowDesignerController {
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private final RepositoryService repositoryService;
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private final IdentityService identityService;
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private final RuntimeService runtimeService;
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private final TaskService taskService;
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private final ObjectMapper objectMapper;
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/**
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* 获得
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* @param modelId
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* @return
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*/
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@RequestMapping(value = "/models/{modelId}/editor/json", method = RequestMethod.GET, produces = "application/json")
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public ObjectNode getModelJSON(@PathVariable String modelId) {
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Model model = repositoryService.getModel(modelId);
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ObjectNode modelNode = objectMapper.createObjectNode();
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modelNode.put("modelId", model.getId());
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modelNode.put("name", model.getName());
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modelNode.put("key", model.getKey());
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modelNode.put("description", JSONObject.parseObject(model.getMetaInfo()).getString("description"));
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modelNode.putPOJO("lastUpdated", model.getLastUpdateTime());
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byte[] modelEditorSource = repositoryService.getModelEditorSource(modelId);
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if (null != modelEditorSource && modelEditorSource.length > 0) {
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try {
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ObjectNode editorJsonNode = (ObjectNode) objectMapper.readTree(modelEditorSource);
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editorJsonNode.put("modelType", "model");
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modelNode.put("model", editorJsonNode);
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} catch (Exception e) {
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e.printStackTrace();
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}
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} else {
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ObjectNode editorJsonNode = objectMapper.createObjectNode();
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editorJsonNode.put("id", "canvas");
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editorJsonNode.put("resourceId", "canvas");
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ObjectNode stencilSetNode = objectMapper.createObjectNode();
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stencilSetNode.put("namespace", "http://b3mn.org/stencilset/bpmn2.0#");
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editorJsonNode.put("modelType", "model");
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modelNode.put("model", editorJsonNode);
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}
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return modelNode;
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}
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/**
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* 保存
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* @param modelId
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* @param values
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*/
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@RequestMapping(value = "models/{modelId}/editor/json", method = RequestMethod.POST)
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public void saveModel(@PathVariable String modelId, @RequestBody MultiValueMap<String, String> values) {
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String json = values.getFirst("json_xml");
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String name = values.getFirst("name");
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String description = values.getFirst("description");
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String key = values.getFirst("key");
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Model modelData = repositoryService.getModel(modelId);
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if (null == modelData) {
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modelData = repositoryService.newModel();
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}
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ObjectNode modelNode = null;
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try {
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modelNode = (ObjectNode) new ObjectMapper().readTree(json);
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} catch (IOException e) {
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e.printStackTrace();
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}
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ObjectNode modelObjectNode = objectMapper.createObjectNode();
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modelObjectNode.put(ModelDataJsonConstants.MODEL_NAME, name);
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modelObjectNode.put(ModelDataJsonConstants.MODEL_REVISION, 1);
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description = StringUtils.defaultString(description);
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modelObjectNode.put(ModelDataJsonConstants.MODEL_DESCRIPTION, description);
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modelData.setMetaInfo(modelObjectNode.toString());
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modelData.setName(name);
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modelData.setKey(StringUtils.defaultString(key));
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// 显示发布按钮
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modelData.setDeploymentId(null);
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repositoryService.saveModel(modelData);
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try {
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repositoryService.addModelEditorSource(modelData.getId(), modelNode.toString().getBytes("utf-8"));
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} catch (UnsupportedEncodingException e) {
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e.printStackTrace();
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}
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}
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/**
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* 校验流程图
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*/
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@PostMapping(value = "/model/validate", consumes = MediaType.APPLICATION_JSON_VALUE)
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public List<ValidationError> validate(@RequestBody JsonNode body) {
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if (body != null && body.has("stencilset")) {
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BpmnModel bpmnModel = new BpmnJsonConverter().convertToBpmnModel(body);
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ProcessValidator validator = new ProcessValidatorFactory().createDefaultProcessValidator();
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List<ValidationError> errors = validator.validate(bpmnModel);
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return errors;
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}
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return Collections.emptyList();
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}
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}
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