Files

Overview

Module

• package: org.eclipse.dirigible.sdk.io
• source: io/Files.java

Filesystem operations against the operating-system view - read/write content, query metadata, change permissions, copy or move entries. Paths are absolute OS paths (not registry paths); to read or write artefacts under /registry/public/... or a project workspace use org.eclipse.dirigible.sdk.platform.Registry or org.eclipse.dirigible.sdk.platform.Workspace instead.

Every method propagates IOException from the platform - callers should funnel them up to a controller or background-job boundary that knows what to do with them.

Key Features:

• Property checks: exists, isFile, isDirectory, isReadable, isWritable, isExecutable, isHidden, isSameFile.
• Content I/O: Read and write text or bytes against absolute OS paths.
• Metadata: Last-modified time, owner, permissions, size; getters and setters where supported.
• Lifecycle: Create files and directories, copy or move them, delete files.

Example Usage:

import org.eclipse.dirigible.sdk.io.Files;

String contents = Files.readText("/var/data/import.csv");
Files.writeText("/var/data/out.json", json);

String target = "/var/data/archive";
if (!Files.exists(target)) {
    Files.createDirectory(target);
}

Methods

exists()

Checks if a file or directory exists at the given path.

public static boolean exists(String path) throws IOException;

Parameter	Type	Description
path	String	The path to check.

Returns

• Type: boolean
• Description: true if the path exists, false otherwise.

isExecutable()

Checks if the file or directory at the given path is executable.

public static boolean isExecutable(String path) throws IOException;

Parameter	Type	Description
path	String	The path to check.

Returns

• Type: boolean
• Description: true if executable, false otherwise.

isReadable()

Checks if the file or directory at the given path is readable.

public static boolean isReadable(String path) throws IOException;

Parameter	Type	Description
path	String	The path to check.

Returns

• Type: boolean
• Description: true if readable, false otherwise.

isWritable()

Checks if the file or directory at the given path is writable.

public static boolean isWritable(String path) throws IOException;

Parameter	Type	Description
path	String	The path to check.

Returns

• Type: boolean
• Description: true if writable, false otherwise.

isHidden()

Checks if the file or directory at the given path is hidden.

public static boolean isHidden(String path) throws IOException;

Parameter	Type	Description
path	String	The path to check.

Returns

• Type: boolean
• Description: true if hidden, false otherwise.

isDirectory()

Checks if the path refers to a directory.

public static boolean isDirectory(String path) throws IOException;

Parameter	Type	Description
path	String	The path to check.

Returns

• Type: boolean
• Description: true if it's a directory, false otherwise.

isFile()

Checks if the path refers to a regular file.

public static boolean isFile(String path) throws IOException;

Parameter	Type	Description
path	String	The path to check.

Returns

• Type: boolean
• Description: true if it's a file, false otherwise.

isSameFile()

Checks if two paths refer to the same underlying file system object.

public static boolean isSameFile(String path1, String path2) throws IOException;

Parameter	Type	Description
path1	String	The first path.
path2	String	The second path.

Returns

• Type: boolean
• Description: true if both paths reference the same file/directory, false otherwise.

getCanonicalPath()

Returns the canonical (absolute and normalized) path for the given path.

public static String getCanonicalPath(String path) throws IOException;

Parameter	Type	Description
path	String	The path to normalize.

Returns

• Type: String
• Description: The canonical path string.

getName()

Gets the simple name of the file or directory at the given path (the last element).

public static String getName(String path) throws IOException;

Parameter	Type	Description
path	String	The path.

Returns

• Type: String
• Description: The simple name.

getParentPath()

Gets the path of the parent directory.

public static String getParentPath(String path) throws IOException;

Parameter	Type	Description
path	String	The path.

Returns

• Type: String
• Description: The parent path string, or null/empty if none exists.

readBytes()

Reads all bytes from a file.

public static byte[] readBytes(String path) throws IOException;

Parameter	Type	Description
path	String	The path to the file.

Returns

• Type: byte[]
• Description: The contents of the file as a byte array.

readText()

Reads all text content from a file using the platform's default character encoding.

public static String readText(String path) throws IOException;

Parameter	Type	Description
path	String	The path to the file.

Returns

• Type: String
• Description: The content of the file as a string.

writeText()

Writes a string of text to a file using the platform's default character encoding. Overwrites existing content.

public static void writeText(String path, String text) throws IOException;

Parameter	Type	Description
path	String	The path to the file.
text	String	The string content to write.

Returns

• Type: void

writeBytes()

Writes the supplied string-encoded byte input to a file. Overwrites existing content. For raw byte[] payloads, prefer writeBytesNative.

public static void writeBytes(String path, String input) throws IOException;

Parameter	Type	Description
path	String	The path to the file.
input	String	The string-encoded byte data to write.

Returns

• Type: void

writeBytesNative()

Writes a native Java byte array to a file. Overwrites existing content.

public static void writeBytesNative(String path, byte[] input) throws IOException;

Parameter	Type	Description
path	String	The path to the file.
input	byte[]	The byte array to write.

Returns

• Type: void

getLastModified()

Gets the last modified time of the file or directory, in milliseconds since the epoch.

public static long getLastModified(String path) throws IOException;

Parameter	Type	Description
path	String	The path to the file or directory.

Returns

• Type: long
• Description: The last-modified time in milliseconds since the epoch.

setLastModified()

Sets the last modified time of the file or directory.

public static void setLastModified(String path, long time) throws IOException;

Parameter	Type	Description
path	String	The path to the file or directory.
time	long	The new last-modified time in milliseconds since the epoch.

Returns

• Type: void

getOwner()

Gets the owner of the file or directory.

public static String getOwner(String path) throws IOException;

Parameter	Type	Description
path	String	The path to the file or directory.

Returns

• Type: String
• Description: The owner name as a string.

setOwner()

Sets the owner of the file or directory.

public static void setOwner(String path, String owner) throws IOException;

Parameter	Type	Description
path	String	The path to the file or directory.
owner	String	The new owner name.

Returns

• Type: void

getPermissions()

Gets the permissions string for the file or directory (implementation dependent).

public static String getPermissions(String path) throws IOException;

Parameter	Type	Description
path	String	The path to the file or directory.

Returns

• Type: String
• Description: The permissions string.

setPermissions()

Sets the permissions for the file or directory (implementation dependent).

public static void setPermissions(String path, String permissions) throws IOException;

Parameter	Type	Description
path	String	The path to the file or directory.
permissions	String	The permissions string.

Returns

• Type: void

size()

Gets the size of the file in bytes.

public static long size(String path) throws IOException;

Parameter	Type	Description
path	String	The path to the file.

Returns

• Type: long
• Description: The size in bytes.

createFile()

Creates a new, empty file at the specified path.

public static void createFile(String path) throws IOException;

Parameter	Type	Description
path	String	The path where the file should be created.

Returns

• Type: void

createDirectory()

Creates a new directory at the specified path.

public static void createDirectory(String path) throws IOException;

Parameter	Type	Description
path	String	The path where the directory should be created.

Returns

• Type: void

copy()

Copies a file or directory from a source path to a target path.

public static void copy(String source, String target) throws IOException;

Parameter	Type	Description
source	String	The source path.
target	String	The target path.

Returns

• Type: void

move()

Moves or renames a file or directory.

public static void move(String source, String target) throws IOException;

Parameter	Type	Description
source	String	The source path.
target	String	The target path.

Returns

• Type: void

deleteFile()

Deletes the file at the specified path.

public static void deleteFile(String path) throws IOException;

Parameter	Type	Description
path	String	The path to the file to delete.

Returns

• Type: void