Activiti6-Modeler/src/main/java/com/activiti6/controller/editor/ModelEditorJsonRestResource.java

package com.activiti6.controller.editor;

import com.activiti6.controller.BaseController;
import com.activiti6.entity.ActivitiUser;
import com.activiti6.entity.AjaxEntityVo;
import com.activiti6.entity.GroupActiviti;
import com.activiti6.entity.SelectVo;
import org.activiti.editor.constants.ModelDataJsonConstants;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.IdentityService;
import org.activiti.engine.RepositoryService;
import org.activiti.engine.identity.Group;
import org.activiti.engine.identity.User;
import org.activiti.engine.repository.Model;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 获取model的节点信息，编辑器根据返回的json进行绘图
 * liuzhize 2019年3月7日下午3:29:15
 */
@RestController
@RequestMapping("service")
public class ModelEditorJsonRestResource  extends BaseController implements ModelDataJsonConstants {

    protected static final Logger LOGGER = LoggerFactory.getLogger(ModelEditorJsonRestResource.class);

    @Autowired
    private RepositoryService repositoryService;

    @Autowired
    private ObjectMapper objectMapper;

    @Autowired
    private IdentityService identityService;

    /**
     * 获取流程json信息
     *
     * @param modelId
     * @return
     */
    @SuppressWarnings("deprecation")
    @RequestMapping(value = "/model/{modelId}/json", method = RequestMethod.GET, produces = "application/json")
    public ObjectNode getEditorJson(@PathVariable String modelId) {
        ObjectNode modelNode = null;
        Model model = repositoryService.getModel(modelId);
        if (model != null) {
            try {
                if (StringUtils.isNotEmpty(model.getMetaInfo())) {
                    modelNode = (ObjectNode) objectMapper.readTree(model.getMetaInfo());
                } else {
                    modelNode = objectMapper.createObjectNode();
                    modelNode.put(MODEL_NAME, model.getName());
                }
                modelNode.put(MODEL_ID, model.getId());
                ObjectNode editorJsonNode = (ObjectNode) objectMapper.readTree(
                        new String(repositoryService.getModelEditorSource(model.getId()), "utf-8"));
                modelNode.put("model", editorJsonNode);
            } catch (Exception e) {
                LOGGER.error("Error creating model JSON", e);
                throw new ActivitiException("Error creating model JSON", e);
            }
        }
        return modelNode;
    }

    @GetMapping(value = "/model/user")
    public AjaxEntityVo getUser() {

        List<User> list = identityService.createUserQuery().list();
        List<ActivitiUser> collect = list.stream().map(x -> {
            ActivitiUser activitiUser = new ActivitiUser();
            String id = x.getId();
            String firstName = x.getFirstName();
            activitiUser.setId(id);
            activitiUser.setFirstName(firstName);
            return activitiUser;
        }).collect(Collectors.toList());
        return  success(collect);
    }
    @GetMapping(value = "/model/user/select")
    public List<SelectVo> getUserSelect() {
        List<User> list = identityService.createUserQuery().list();
        List<SelectVo> collect = list.stream().map(x -> {
            SelectVo activitiUser = new SelectVo();
            String id = x.getId();
            String firstName = x.getFirstName();
            activitiUser.setValue(id);
            activitiUser.setText(firstName);
            return activitiUser;
        }).collect(Collectors.toList());
        return  collect;
    }

    @GetMapping(value = "/model/group")
    public AjaxEntityVo getGroup() {

        List<Group> list = identityService.createGroupQuery().list();
        list.stream().map(x->{
            String id = x.getId();
            String name = x.getName();
            GroupActiviti groupActiviti=new GroupActiviti();
            groupActiviti.setId(id);
            groupActiviti.setName(name);
            return  groupActiviti;
        }).collect(Collectors.toList());
        return  success(list);
    }
}