Get file name from csv/excel operator dynamically, split file name and pass it write db operator

RadhakrishnaRadhakrishna Member Posts: 3 Newbie
edited October 7 in Help
Hi,
         i am very new to RM. I have to read file name from csv/excel  file.
Split the file name with _ delimiter and pass them to  write database operator to store them in database.
Could you please suggest me how we can implement this solution?
Thanks,
Radhakrishna

Answers

  • kaymankayman Member Posts: 416   Unicorn
    Are your excel files stored in a folder and do you loop through them?
    In that case the loop files operator is the easiest way to start. Find attached a simplified example, it will require further improvements but it might get you started.


    <?xml version="1.0" encoding="UTF-8"?><process version="9.4.001">
      <context>
        <input/>
        <output/>
        <macros/>
      </context>
      <operator activated="true" class="process" compatibility="9.4.001" expanded="true" name="Process">
        <parameter key="logverbosity" value="init"/>
        <parameter key="random_seed" value="2001"/>
        <parameter key="send_mail" value="never"/>
        <parameter key="notification_email" value=""/>
        <parameter key="process_duration_for_mail" value="30"/>
        <parameter key="encoding" value="UTF-8"/>
        <process expanded="true">
          <operator activated="true" class="concurrency:loop_files" compatibility="9.4.001" expanded="true" height="82" name="Loop Files" width="90" x="179" y="34">
            <parameter key="directory" value="your_excel_folder"/>
            <parameter key="filter_type" value="glob"/>
            <parameter key="recursive" value="false"/>
            <parameter key="enable_macros" value="true"/>
            <parameter key="macro_for_file_name" value="file_name"/>
            <parameter key="macro_for_file_type" value="file_type"/>
            <parameter key="macro_for_folder_name" value="folder_name"/>
            <parameter key="reuse_results" value="false"/>
            <parameter key="enable_parallel_execution" value="false"/>
            <process expanded="true">
              <operator activated="true" class="utility:create_exampleset" compatibility="9.4.001" expanded="true" height="68" name="Create ExampleSet" width="90" x="447" y="85">
                <parameter key="generator_type" value="attribute functions"/>
                <parameter key="number_of_examples" value="1"/>
                <parameter key="use_stepsize" value="false"/>
                <list key="function_descriptions">
                  <parameter key="my_excel_file_name" value="%{file_name}"/>
                </list>
                <parameter key="add_id_attribute" value="false"/>
                <list key="numeric_series_configuration"/>
                <list key="date_series_configuration"/>
                <list key="date_series_configuration (interval)"/>
                <parameter key="date_format" value="yyyy-MM-dd HH:mm:ss"/>
                <parameter key="time_zone" value="SYSTEM"/>
                <parameter key="column_separator" value=","/>
                <parameter key="parse_all_as_nominal" value="false"/>
                <parameter key="decimal_point_character" value="."/>
                <parameter key="trim_attribute_names" value="true"/>
                <description align="center" color="transparent" colored="false" width="126">create a single record with the excel name</description>
              </operator>
              <operator activated="true" class="replace" compatibility="9.4.001" expanded="true" height="82" name="Replace" width="90" x="581" y="85">
                <parameter key="attribute_filter_type" value="single"/>
                <parameter key="attribute" value="my_excel_file_name"/>
                <parameter key="attributes" value=""/>
                <parameter key="use_except_expression" value="false"/>
                <parameter key="value_type" value="nominal"/>
                <parameter key="use_value_type_exception" value="false"/>
                <parameter key="except_value_type" value="file_path"/>
                <parameter key="block_type" value="single_value"/>
                <parameter key="use_block_type_exception" value="false"/>
                <parameter key="except_block_type" value="single_value"/>
                <parameter key="invert_selection" value="false"/>
                <parameter key="include_special_attributes" value="false"/>
                <parameter key="replace_what" value=".xlsx"/>
                <description align="center" color="transparent" colored="false" width="126">remove the extension</description>
              </operator>
              <operator activated="true" class="split" compatibility="9.4.001" expanded="true" height="82" name="Split" width="90" x="715" y="85">
                <parameter key="attribute_filter_type" value="single"/>
                <parameter key="attribute" value="my_excel_file_name"/>
                <parameter key="attributes" value=""/>
                <parameter key="use_except_expression" value="false"/>
                <parameter key="value_type" value="nominal"/>
                <parameter key="use_value_type_exception" value="false"/>
                <parameter key="except_value_type" value="file_path"/>
                <parameter key="block_type" value="single_value"/>
                <parameter key="use_block_type_exception" value="false"/>
                <parameter key="except_block_type" value="single_value"/>
                <parameter key="invert_selection" value="false"/>
                <parameter key="include_special_attributes" value="false"/>
                <parameter key="split_pattern" value="_"/>
                <parameter key="split_mode" value="ordered_split"/>
                <description align="center" color="transparent" colored="false" width="126">split by _</description>
              </operator>
              <connect from_op="Create ExampleSet" from_port="output" to_op="Replace" to_port="example set input"/>
              <connect from_op="Replace" from_port="example set output" to_op="Split" to_port="example set input"/>
              <connect from_op="Split" from_port="example set output" to_port="output 1"/>
              <portSpacing port="source_file object" spacing="0"/>
              <portSpacing port="source_input 1" spacing="0"/>
              <portSpacing port="sink_output 1" spacing="0"/>
              <portSpacing port="sink_output 2" spacing="0"/>
            </process>
            <description align="center" color="transparent" colored="false" width="126">loop through all excel files and get the name split</description>
          </operator>
          <operator activated="true" class="operator_toolbox:advanced_append" compatibility="2.2.000" expanded="true" height="82" name="Append (Superset)" width="90" x="313" y="34">
            <description align="center" color="transparent" colored="false" width="126">add all together</description>
          </operator>
          <connect from_op="Loop Files" from_port="output 1" to_op="Append (Superset)" to_port="example set 1"/>
          <portSpacing port="source_input 1" spacing="0"/>
          <portSpacing port="sink_result 1" spacing="0"/>
        </process>
      </operator>
    </process>
    


    Tghadially
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