Package convex.cli

Class Helpers

java.lang.Object

convex.cli.Helpers

public class Helpers
extends Object

Helpers Helper functions for the CLI classes.

Constructor Summary

Constructors

Constructor	Description
Helpers()

Method Summary

Modifier and Type	Method	Description
static void	createPath(File file)	Create a path if necessary to a File object.
static File	createTempFile(String name, String ext)
static File	createTempKeystore(String name, String password)
static String	expandTilde(String path)	Expand a path string with a '~'.
static SessionItem	getSessionItem(String sessionFilename)	Return a random session hostname, by looking at the session file.
static SessionItem	getSessionItem(String sessionFilename, int index)	Return an indexed session item, by looking at the session file.
static List<String>	splitArrayParameter(String... parameterValues)	Split a parameter list by ','.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Helpers

public Helpers()

Method Details

expandTilde

public static String expandTilde(String path)

Expand a path string with a '~'. The tilde is expanded to the users home path.

Parameters:

path - Path string to expand.

Returns:

Expanded string if a tilde is present.

createPath

public static void createPath(File file)

Create a path if necessary to a File object. This is used to provide a feature to add the default `.convex` folder if it does not exist.

Parameters:

file - File object to see if the path part of the filename exists, if not then create it.

getSessionItem

public static SessionItem getSessionItem(String sessionFilename)
                                  throws IOException

Return a random session hostname, by looking at the session file. The session file has a list of local peers open. This helper will find a random peer in the collection and returns hostname.

Parameters:

sessionFilename - Session filename to open and get the random port nummber.

Returns:

A random hostname or null if none can be found

Throws:

IOException - If IO error occurs

getSessionItem

public static SessionItem getSessionItem(String sessionFilename,
 int index)
                                  throws IOException

Return an indexed session item, by looking at the session file. The session file has a list of local peers open. This helper will find a random peer in the collection and returns session item.

Parameters:

sessionFilename - Session filename to open and get the random port nummber.

index - The index of the peer in the session list or if -1 a random selection is made.

Returns:

A random session item or null if none can be found

Throws:

IOException

splitArrayParameter

public static List<String> splitArrayParameter(String... parameterValues)

Split a parameter list by ','. Handles internal separators (sublists in strings) Trims resulting Strings of whitespace

Parameters:

parameterValues - Array of parameter values

Returns:

List of trimmed Strings

createTempFile

public static File createTempFile(String name,
 String ext)

createTempKeystore

public static File createTempKeystore(String name,
 String password)