FileUtil
FileUtil
class provides utility methods for working with files in your application. It includes methods for reading, creating, and managing files.
Methods
readFile(filePath: String): File
readFile(filePath: String): File
Reads the content of a file located at the specified filePath
and returns a File
object representing the file.
Parameters:
filePath
(String): The path to the file to be read.
Returns:
File
: AFile
object representing the read file.
// Read a file
var filePath = "path/to/your/file.txt";
var file = FileUtil.readFile(filePath);
readInputStream(inputStream: InputStream, relativeIterationPath: String): File
readInputStream(inputStream: InputStream, relativeIterationPath: String): File
Reads the content of an input stream and creates a File
object. The relativeIterationPath
is used to determine the file path for the created File
object.
Parameters:
inputStream
(InputStream): The input stream to read.relativeIterationPath
(String): The relative path for the createdFile
object.
Returns:
File
: AFile
object representing the read content.
var inputStream = ...; // Your input stream source
// Relative path for the created File object
var relativeIterationPath = "output/sample.txt";
// Call the method to read the input stream and create a File object
var file = FileUtil.readInputStream(inputStream, relativeIterationPath);
// Now, you can work with the created File object
// For example, you can check the file's absolute path
var absolutePath = file.getAbsolutePath();
return "Absolute Path: " + absolutePath;
createFile(filePath: String, content: String): File
createFile(filePath: String, content: String): File
Creates a new file at the specified filePath
with the provided content
.
Parameters:
filePath
(String): The path for the new file.content
(String): The content to be written to the file.
Returns:
File
: AFile
object representing the newly created file.
// Create a file
var newFilePath = "path/to/newfile.txt";
var fileContent = "This is the content of the new file.";
var newFile = FileUtil.createFile(newFilePath, fileContent);
createTempFile(fileName: String, content: String): File
createTempFile(fileName: String, content: String): File
Creates a temporary file with the specified fileName
and writes the provided content
to it.
Parameters:
fileName
(String): The name for the temporary file.content
(String): The content to be written to the file.
Returns:
File
: AFile
object representing the created temporary file.
// Create a temp file
var newFilePath = "path/to/newfile.txt";
var fileContent = "This is the content of the new file.";
var newFile = FileUtil.createTempFile(newFilePath, fileContent);
readFileContent(fileName: String): String
readFileContent(fileName: String): String
Reads the content of a file with the specified fileName
and returns it as a string.
Parameters:
fileName
(String): The name of the file to read.
Returns:
String
: The content of the file as a string.
// Read file content
var fileToRead = "path/to/your/anotherfile.txt";
var fileContent = FileUtil.readFileContent(fileToRead);
return "File Content: " + fileContent;
Examples
Logging Data to a File:
// Logging business operation
var logFilePath = "logs/business_log.txt";
var logMessage = "User John Doe performed a critical operation.";
// Create or append to the log file
var logFile = FileUtil.createFile(logFilePath, logMessage);
// Log the operation details for auditing purposes
return "Operation logged: " + logFile.getAbsolutePath();
Generating Reports:
// Generating a business report
var reportName = "Q3_Sales_Report.pdf";
var reportData = "Quarterly sales report data...";
// Create a temporary report file
var tempReport = FileUtil.createTempFile(reportName, reportData);
// In a real scenario, you might generate a PDF report and save it temporarily
// Provide a download link to the user for the report
return "Report generated: " + tempReport.getAbsolutePath();
Reading Customer Data:
// Reading customer data from a file
var customerFile = "customer_profiles/customer123.txt";
// Read the customer data
var customerData = FileUtil.readFileContent(customerFile);
// Process and display customer information in your application
return "Customer Data:\n" + customerData;
Data Backup and Recovery:
// Creating a backup of important data
var dataFilePath = "data/important_data.csv";
var dataToBackup = FileUtil.readFileContent(dataFilePath);
// Create a backup file with a timestamp
var backupFileName = "data_backup_" + System.currentTimeMillis() + ".csv";
var backupFile = FileUtil.createFile("backups/" + backupFileName, dataToBackup);
// Create a backup of important data for disaster recovery
return "Data backup created: " + backupFile.getAbsolutePath();