com.quhaodian.activiti.controller.editor.model.ModelEditorJsonRestResource Maven / Gradle / Ivy

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/* 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 com.quhaodian.activiti.controller.editor.model;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ObjectNode;
import org.activiti.editor.constants.ModelDataJsonConstants;
import org.activiti.engine.ActivitiException;
import org.activiti.engine.RepositoryService;
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.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

/**
 * @author Tijs Rademakers
 */
@RestController
public class ModelEditorJsonRestResource implements ModelDataJsonConstants {

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

	@Autowired
	private RepositoryService repositoryService;

//	@Autowired
//	private ObjectMapper objectMapper;
	protected ObjectMapper objectMapper = new ObjectMapper();

	@RequestMapping(value = "/act/service/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;
	}
}