package com.highdatas.mdm.service.impl;
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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 com.highdatas.mdm.pojo.Result;
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import com.highdatas.mdm.service.ModelEditorService;
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import com.highdatas.mdm.util.DbUtils;
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import org.activiti.editor.constants.ModelDataJsonConstants;
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import org.activiti.engine.ActivitiException;
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import org.activiti.engine.RepositoryService;
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import org.activiti.engine.repository.Model;
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import org.apache.commons.io.IOUtils;
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import org.apache.commons.lang3.StringUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Service;
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import org.springframework.util.MultiValueMap;
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import java.io.InputStream;
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import java.io.UnsupportedEncodingException;
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/**
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* @author kimi
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* @description
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* @date 2019-12-11 14:41
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*/
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@Service
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public class ModelEditorServiceImpl implements ModelEditorService, ModelDataJsonConstants {
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protected static final Logger LOGGER = LoggerFactory.getLogger(ModelEditorServiceImpl.class);
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@Autowired
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private RepositoryService repositoryService;
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@Autowired
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private ObjectMapper objectMapper;
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@Override
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public ObjectNode getEditorJson(String modelId) {
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ObjectNode modelNode = null;
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Model model = repositoryService.getModel(modelId);
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if (model != null) {
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try {
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if (StringUtils.isNotEmpty(model.getMetaInfo())) {
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modelNode = (ObjectNode) objectMapper.readTree(model.getMetaInfo());
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} else {
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modelNode = objectMapper.createObjectNode();
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modelNode.put(MODEL_NAME, model.getName());
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}
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modelNode.put(MODEL_ID, model.getId());
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byte[] modelEditorSource = repositoryService.getModelEditorSource(model.getId());
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String s = new String(modelEditorSource, "utf-8");
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ObjectNode editorJsonNode = (ObjectNode) objectMapper.readTree(s);
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modelNode.put("model", editorJsonNode);
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} catch (Exception e) {
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LOGGER.error("Error creating model JSON", e);
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throw new ActivitiException("Error creating model JSON", e);
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}
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}else {
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}
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return modelNode;
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}
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@Override
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public Result saveModel(String modelId, MultiValueMap<String, String> values) {
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return null;
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}
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@Override
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public String getStencilset() {
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InputStream stencilsetStream = this.getClass().getClassLoader().getResourceAsStream("static/process/stencilset_cn.json");
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try {
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return IOUtils.toString(stencilsetStream, "utf-8");
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} catch (Exception e) {
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throw new ActivitiException("Error while loading stencil set", e);
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}
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}
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@Override
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public String createModel() {
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//初始化一个空模型
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Model model = repositoryService.newModel();
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//设置一些默认信息
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String name = "new-process";
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String description = "";
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int revision = 1;
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String key = DbUtils.getRandomString(8);
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ObjectNode modelNode = objectMapper.createObjectNode();
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modelNode.put(ModelDataJsonConstants.MODEL_NAME, name);
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modelNode.put(ModelDataJsonConstants.MODEL_DESCRIPTION, description);
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modelNode.put(ModelDataJsonConstants.MODEL_REVISION, revision);
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model.setName(name);
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model.setKey(key);
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model.setMetaInfo(modelNode.toString());
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repositoryService.saveModel(model);
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String id = model.getId();
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//完善ModelEditorSource
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ObjectNode editorNode = objectMapper.createObjectNode();
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editorNode.put("id", "canvas");
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editorNode.put("resourceId", "canvas");
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ObjectNode stencilSetNode = objectMapper.createObjectNode();
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stencilSetNode.put("namespace",
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"http://b3mn.org/stencilset/bpmn2.0#");
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editorNode.put("stencilset", stencilSetNode);
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try {
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repositoryService.addModelEditorSource(id,editorNode.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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return model.getId();
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}
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}
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