@metacell/geppetto-meta-client/communication/geppettoJupyter/GeppettoJupyterUtils.js

Geppetto web frontend. Geppetto is an open-source platform to build web-based tools to visualize and simulate neuroscience data and models.

import EventManager from '@metacell/geppetto-meta-client/common/EventManager';
var handle_output = function handle_output(data) {
  // data is the object passed to the callback from the kernel execution
  switch (data.msg_type) {
    case 'error':
      console.log("ERROR while executing a Python command:");
      console.log(data.content.evalue.trim());
      console.error("ERROR while executing a Python command:");
      console.error(data.content.traceback);
      EventManager.actionsHandler[EventManager.clientActions.ERROR_WHILE_EXEC_PYTHON_COMMAND](data.content);
      EventManager.actionsHandler[EventManager.clientActions.HIDE_SPINNER]();
      break;
    case 'execute_result':
      console.log(data.content.data['text/plain'].trim(), true);
      try {
        var response = JSON.parse(data.content.data['text/plain'].replace(/^'(.*)'$/, '$1'));
      } catch (error) {
        var response = data.content.data['text/plain'].replace(/^'(.*)'$/, '$1');
      }
      EventManager.actionsHandler[EventManager.clientActions.RECEIVE_PYTHON_MESSAGE]({
        id: data.parent_header.msg_id,
        type: data.msg_type,
        response: response
      });
      break;
    case "display_data":
      // FIXME
      break;
    default:
      console.log(data.content.text.trim(), true);
  }
};
var execPythonMessage = function execPythonMessage(command) {
  var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : handle_output;
  console.log('Executing Python command: ' + command, true);
  var kernel = IPython.notebook.kernel;
  var messageID = kernel.execute(command, {
    iopub: {
      output: callback
    }
  }, {
    silent: false,
    stop_on_error: true,
    store_history: true
  });
  return new Promise(function (resolve, reject) {
    return EventManager.eventsCallback[EventManager.clientActions.RECEIVE_PYTHON_MESSAGE].add(function (action) {
      if (action.data.id == messageID) {
        resolve(action.data.response);
      }
    });
  });
};
var evalPythonMessage = function evalPythonMessage(command, parameters) {
  var parse = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
  var parametersString = '';
  if (parameters) {
    if (parameters.length > 0) {
      parametersString = "(" + parameters.map(function (parameter) {
        return "utils.convertToPython('" + JSON.stringify(parameter) + "')";
      }).join(",") + ")";
    } else {
      parametersString = '()';
    }
  }
  var finalCommand = command + parametersString;
  if (parse) {
    finalCommand = 'utils.convertToJS(' + finalCommand + ')';
  }
  return execPythonMessage(finalCommand, handle_output);
};
export { execPythonMessage, evalPythonMessage };