1 #!/bin/bash

     2 

     3 # Relational pipes

     4 # Copyright © 2020 František Kučera (Frantovo.cz, GlobalCode.info)

     5 #

     6 # This program is free software: you can redistribute it and/or modify

     7 # it under the terms of the GNU General Public License as published by

     8 # the Free Software Foundation, version 3 of the License.

     9 #

    10 # This program is distributed in the hope that it will be useful,

    11 # but WITHOUT ANY WARRANTY; without even the implied warranty of

    12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

    13 # GNU General Public License for more details.

    14 #

    15 # You should have received a copy of the GNU General Public License

    16 # along with this program. If not, see <http://www.gnu.org/licenses/>.

    17 

    18 

    19 # This streamlet provides a single attribute: inode number of given file

    20 

    21 

    22 . "$(dirname $0)/streamlet-common.sh"

    23 

    24 processMessage_WAITING_FOR_OUTPUT_ATTRIBUTES_METADATA() {

    25 	send OUTPUT_ATTRIBUTE_METADATA "${outputAttributeAliases[0]-inode}"    "integer"

    26 	send WAITING_FOR_INPUT_ATTRIBUTES

    27 }

    28 

    29 processMessage_WAITING_FOR_OUTPUT_ATTRIBUTES() {

    30 	value=$(ls -d -i "$currentFile" | cut -d" " -f1);

    31 	send OUTPUT_ATTRIBUTE "$value"    "false";

    32 	send WAITING_FOR_INPUT_ATTRIBUTES;

    33 }

    34 

    35 initialize

    36 processMessages