Package org.activiti.rest.service.api.history

Source Code of org.activiti.rest.service.api.history.HistoricTaskInstanceResource

/* 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.activiti.rest.service.api.history;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.activiti.engine.ActivitiObjectNotFoundException;
import org.activiti.engine.HistoryService;
import org.activiti.engine.history.HistoricTaskInstance;
import org.activiti.rest.service.api.RestResponseFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
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 HistoricTaskInstanceResource {

  @Autowired
  protected RestResponseFactory restResponseFactory;
 
  @Autowired
  protected HistoryService historyService;

  @RequestMapping(value="/history/historic-task-instances/{taskId}", method = RequestMethod.GET, produces = "application/json")
  public HistoricTaskInstanceResponse getTaskInstance(@PathVariable String taskId, HttpServletRequest request) {
    String serverRootUrl = request.getRequestURL().toString();
    serverRootUrl = serverRootUrl.substring(0, serverRootUrl.indexOf("/history/historic-task-instances/"));
    return restResponseFactory.createHistoricTaskInstanceResponse(getHistoricTaskInstanceFromRequest(taskId), serverRootUrl);
  }
 
  @RequestMapping(value="/history/historic-task-instances/{taskId}", method = RequestMethod.DELETE)
  public void deleteTaskInstance(@PathVariable String taskId, HttpServletResponse response) {
    historyService.deleteHistoricTaskInstance(taskId);
    response.setStatus(HttpStatus.NO_CONTENT.value());
  }
 
  protected HistoricTaskInstance getHistoricTaskInstanceFromRequest(String taskId) {
    HistoricTaskInstance taskInstance = historyService.createHistoricTaskInstanceQuery()
           .taskId(taskId).singleResult();
    if (taskInstance == null) {
      throw new ActivitiObjectNotFoundException("Could not find a task instance with id '" + taskId + "'.", HistoricTaskInstance.class);
    }
    return taskInstance;
  }
}
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