Exemplo n.º 1
0
Arquivo: api3.py Projeto: dulems/hue-1
def guess_format(request):
  file_format = json.loads(request.POST.get('fileFormat', '{}'))

  if file_format['inputFormat'] == 'file':
    indexer = MorphlineIndexer(request.user, request.fs)
    if not request.fs.isfile(file_format["path"]):
      raise PopupException(_('Path %(path)s is not a file') % file_format)

    stream = request.fs.open(file_format["path"])
    format_ = indexer.guess_format({
      "file": {
        "stream": stream,
        "name": file_format['path']
      }
    })
    _convert_format(format_)
  elif file_format['inputFormat'] == 'table':
    db = dbms.get(request.user)
    table_metadata = db.get_table(database=file_format['databaseName'], table_name=file_format['tableName'])

    storage = dict([(delim['data_type'], delim['comment']) for delim in table_metadata.storage_details])
    if table_metadata.details['properties']['format'] == 'text':
      format_ = {"quoteChar": "\"", "recordSeparator": '\\n', "type": "csv", "hasHeader": False, "fieldSeparator": storage['serialization.format']}
    elif table_metadata.details['properties']['format'] == 'parquet':
      format_ = {"type": "parquet", "hasHeader": False,}
    else:
      raise PopupException('Hive table format %s is not supported.' % table_metadata.details['properties']['format'])
  elif file_format['inputFormat'] == 'query':
    format_ = {"quoteChar": "\"", "recordSeparator": "\\n", "type": "csv", "hasHeader": False, "fieldSeparator": "\u0001"}
  elif file_format['inputFormat'] == 'rdbms':
    format_ = RdbmsIndexer(request.user, file_format['rdbmsType']).guess_format()

  format_['status'] = 0
  return JsonResponse(format_)
Exemplo n.º 2
0
 def setup_class(cls):
     if not ENABLE_SQOOP.get():
         raise SkipTest
     if not rdbms.get_query_server_config(server='mysql'):
         raise SkipTest
     cls.client = make_logged_in_client()
     cls.user = User.objects.get(username='******')
     cls.user = rewrite_user(cls.user)
     cls.indexer = RdbmsIndexer(cls.user, db_conf_name='mysql')
Exemplo n.º 3
0
def guess_field_types(request):
  file_format = json.loads(request.POST.get('fileFormat', '{}'))

  if file_format['inputFormat'] == 'file':
    indexer = MorphlineIndexer(request.user, request.fs)
    stream = request.fs.open(file_format["path"])
    _convert_format(file_format["format"], inverse=True)

    format_ = indexer.guess_field_types({
      "file": {
          "stream": stream,
          "name": file_format['path']
        },
      "format": file_format['format']
    })
  elif file_format['inputFormat'] == 'table':
    sample = get_api(request, {'type': 'hive'}).get_sample_data({'type': 'hive'}, database=file_format['databaseName'], table=file_format['tableName'])
    db = dbms.get(request.user)
    table_metadata = db.get_table(database=file_format['databaseName'], table_name=file_format['tableName'])

    format_ = {
        "sample": sample['rows'][:4],
        "columns": [
            Field(col.name, HiveFormat.FIELD_TYPE_TRANSLATE.get(col.type, 'string')).to_dict()
            for col in table_metadata.cols
        ]
    }
  elif file_format['inputFormat'] == 'query': # Only support open query history
    # TODO get schema from explain query, which is not possible
    notebook = Notebook(document=Document2.objects.get(id=file_format['query'])).get_data()
    snippet = notebook['snippets'][0]
    sample = get_api(request, snippet).fetch_result(notebook, snippet, 4, start_over=True)

    format_ = {
        "sample": sample['rows'][:4],
        "sample_cols": sample.meta,
        "columns": [
            Field(col['name'], HiveFormat.FIELD_TYPE_TRANSLATE.get(col['type'], 'string')).to_dict()
            for col in sample.meta
        ]
    }
  elif file_format['inputFormat'] == 'rdbms':
    query_server = rdbms.get_query_server_config(server=file_format['rdbmsType'])
    db = rdbms.get(request.user, query_server=query_server)
    sample = RdbmsIndexer(request.user, file_format['rdbmsType']).get_sample_data(mode=file_format['rdbmsMode'], database=file_format['rdbmsDatabaseName'], table=file_format['rdbmsTableName'])
    table_metadata = db.get_columns(file_format['rdbmsDatabaseName'], file_format['rdbmsTableName'], names_only=False)

    format_ = {
        "sample": list(sample['rows'])[:4],
        "columns": [
            Field(col['name'], HiveFormat.FIELD_TYPE_TRANSLATE.get(col['type'], 'string')).to_dict()
            for col in table_metadata
        ]
    }

  return JsonResponse(format_)
Exemplo n.º 4
0
      if delim['data_type']:
        if '=' in delim['data_type']:
          key, val = delim['data_type'].split('=', 1)
          storage[key] = val
        else:
          storage[delim['data_type']] = delim['comment']
    if table_metadata.details['properties']['format'] == 'text':
      format_ = {"quoteChar": "\"", "recordSeparator": '\\n', "type": "csv", "hasHeader": False, "fieldSeparator": storage.get('field.delim', ',')}
    elif table_metadata.details['properties']['format'] == 'parquet':
      format_ = {"type": "parquet", "hasHeader": False,}
    else:
      raise PopupException('Hive table format %s is not supported.' % table_metadata.details['properties']['format'])
  elif file_format['inputFormat'] == 'query':
    format_ = {"quoteChar": "\"", "recordSeparator": "\\n", "type": "csv", "hasHeader": False, "fieldSeparator": "\u0001"}
  elif file_format['inputFormat'] == 'rdbms':
    format_ = RdbmsIndexer(request.user, file_format['rdbmsType']).guess_format()

  format_['status'] = 0
  return JsonResponse(format_)


def guess_field_types(request):
  file_format = json.loads(request.POST.get('fileFormat', '{}'))

  if file_format['inputFormat'] == 'file':
    indexer = MorphlineIndexer(request.user, request.fs)
    stream = request.fs.open(file_format["path"])
    _convert_format(file_format["format"], inverse=True)

    format_ = indexer.guess_field_types({
      "file": {
Exemplo n.º 5
0
      if delim['data_type']:
        if '=' in delim['data_type']:
          key, val = delim['data_type'].split('=', 1)
          storage[key] = val
        else:
          storage[delim['data_type']] = delim['comment']
    if table_metadata.details['properties']['format'] == 'text':
      format_ = {"quoteChar": "\"", "recordSeparator": '\\n', "type": "csv", "hasHeader": False, "fieldSeparator": storage.get('field.delim', ',')}
    elif table_metadata.details['properties']['format'] == 'parquet':
      format_ = {"type": "parquet", "hasHeader": False,}
    else:
      raise PopupException('Hive table format %s is not supported.' % table_metadata.details['properties']['format'])
  elif file_format['inputFormat'] == 'query':
    format_ = {"quoteChar": "\"", "recordSeparator": "\\n", "type": "csv", "hasHeader": False, "fieldSeparator": "\u0001"}
  elif file_format['inputFormat'] == 'rdbms':
    format_ = RdbmsIndexer(request.user, file_format['rdbmsType']).guess_format()
  elif file_format['inputFormat'] == 'stream':
    if file_format['streamSelection'] == 'kafka':
      format_ = {"type": "csv", "fieldSeparator": ",", "hasHeader": True, "quoteChar": "\"", "recordSeparator": "\\n", 'topics': get_topics()}
    elif file_format['streamSelection'] == 'sfdc':
      sf = Salesforce(
          username=file_format['streamUsername'],
          password=file_format['streamPassword'],
          security_token=file_format['streamToken']
      )
      format_ = {"type": "csv", "fieldSeparator": ",", "hasHeader": True, "quoteChar": "\"", "recordSeparator": "\\n", 'objects': [sobject['name'] for sobject in sf.restful('sobjects/')['sobjects'] if sobject['queryable']]}

  format_['status'] = 0
  return JsonResponse(format_)