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Opalis Integration Server > Foundation Objects > Text File Management > Read Line

Read Line
The Read Line object reads lines from a text file.
Note: This object replaces functionality in the Manage Text File Legacy object. For more information, see the Legacy topic.
How it is used
Use the Read Line object to read lines from a text file and pass them to another object using Published Data.
Configuration
To configure the Read Line object you need to know name of the file that you want to read lines from, the file encoding it uses, and the line numbers of the text that you want to read.
Details Tab
 
File
Type the path and name of the file that you want to read the text from, or click the ellipsis button (...) and browse for it.
File encoding
Click the ellipsis button (...) and select the format that the file is encoded in from the File encoding drop-down list. Verify that you select the correct encoding format: if the file uses a different encoding format, the object fails.
Line numbers
Type the line numbers of the text that you want to read from the file that you specified.
To specify a range of lines, use a hyphen: 1-3. This reads lines 1 to 3.
To specify specific lines, use a comma: 5,7,9. This reads lines 5, 7, and 9.
Combine the range and specific lines: 1-3,5,7,9. This reads lines 1 to 3, and lines 5, 7, and 9.
To specify from a specific line to the last line of the file, type the line number, hyphen, and END: 4-END. This reads lines 4 to the last line of the file.
To specify from a specific line to a line relative to the last line of the file, type the line number, hyphen, the less-than sign, and the line number relative to the end line: 4-END<3. If the file has 20 lines, this reads lines 4 to 17 from the file. <3 represents the third line from the end.
To specify the last number of lines, type LASTLINES, colon, and the last number of lines that you want to delete: LASTLINES:10. This reads the last 10 lines of the file.
Combine different types of operations: 1-5, 8, 10-END<20, LASTLINES:10. This reads lines 1 to 5, line 8, line 10 to the 20th line from the end, and the last 10 lines. Do not overlap lines or line ranges when combining operations. For example, 5-END, LASTLINES:10 fails because the 5-END operation already reads to the end, so the LASTLINES:10 operation cannot succeed because the lines are already read, and the object fails.
Note: Do not specify lines numbers that do not exist in the file, and do not specify a line number more than once, or the object fails.
Available Published Data
 
Name
Description
File name
The file name of the text file that was read.
File encoding
The file encoding format that you selected in the File encoding field.
Line text
The text of the line that was read.
Line number
The line number of the text that was read. A Published Data item is created for each line that was read.
Line numbers
The line number range that the user typed in the field.
Common Published Data

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