ComfyUI Node: Wait and read text file, optional control from text v4.7.3

Wait and read text file, optional control from text v4.7.3:

The tri3d_Wait_And_Read_File node is designed to facilitate the reading of text files in a controlled manner, ensuring that the file is fully available before attempting to read its contents. This node is particularly useful in scenarios where file generation and reading need to be synchronized, such as when a file is being created or modified by another process. By waiting for the file to exist before reading, it prevents errors that might occur from attempting to access a non-existent or incomplete file. This functionality is crucial in workflows that require precise timing and coordination between different processes, ensuring data integrity and consistency.

Wait and read text file, optional control from text v4.7.3 Input Parameters:

absolute_filename

The absolute_filename parameter specifies the complete path to the file that you wish to read. This is a required parameter and must be provided as a string. The node will continuously check for the existence of this file and will only proceed to read its contents once the file is detected. This ensures that the file is fully available and ready for reading, preventing errors related to missing files. The default value for this parameter is "image.txt", but it should be set to the actual path of the file you intend to read.

text

The text parameter is optional and allows you to provide additional text that can be used to control the execution order when necessary. This parameter supports multiline input and dynamic prompts, making it flexible for various use cases. While it does not directly affect the file reading process, it can be used to manage dependencies or conditions in your workflow, ensuring that the node operates in the desired sequence. This can be particularly useful in complex workflows where multiple nodes or processes are interdependent.

Wait and read text file, optional control from text v4.7.3 Output Parameters:

text from file

The text from file output parameter provides the contents of the file specified by the absolute_filename parameter. Once the file is detected and read, its contents are returned as a string. This output is crucial for workflows that require the data stored in external files, allowing you to seamlessly integrate file-based data into your processes. The node ensures that the file is read only when it is fully available, thus maintaining the integrity and accuracy of the data being processed.

Wait and read text file, optional control from text v4.7.3 Usage Tips:

• Ensure that the absolute_filename parameter is set to the correct path of the file you intend to read. This will prevent unnecessary delays in your workflow due to incorrect file paths.
• Use the text parameter to manage execution order in complex workflows. This can help in coordinating multiple processes and ensuring that the node operates at the right time.

Wait and read text file, optional control from text v4.7.3 Common Errors and Solutions:

FileNotFoundError

• Explanation: This error occurs when the specified file does not exist at the given path.
• Solution: Verify that the absolute_filename parameter is set to the correct path and that the file exists. Ensure that the file is being generated or placed in the expected location before the node attempts to read it.

PermissionError

• Explanation: This error arises when the node does not have the necessary permissions to read the specified file.
• Solution: Check the file permissions and ensure that the node has the appropriate access rights to read the file. Adjust the permissions if necessary to allow read access.

IOError

• Explanation: This error can occur if there is an issue with reading the file, such as the file being in use by another process.
• Solution: Ensure that no other process is locking the file or preventing it from being read. You may need to coordinate with other processes to ensure the file is available for reading.