io.reactiverse.vertx.maven.plugin.utils

Class ExecUtils

java.lang.Object

io.reactiverse.vertx.maven.plugin.utils.ExecUtils

public class ExecUtils
extends Object

Some helper methods related to program execution.

Field Summary

Fields

Modifier and Type	Field and Description
private static String[]	EXECUTABLE_EXTENSIONS The set of extensions (including the empty extension) to append to the searched executable name.

Constructor Summary

Constructors

Constructor and Description
ExecUtils()

Method Summary

Modifier and Type	Method and Description
static File	find(String executable, File... dirs) Tries to find an executable with the given name.
private static File	findExecutableInDirectory(String executable, File directory) Tries to find the given executable (specified by its name) in the given directory.
static File	findExecutableInSystemPath(String executable) Tries to find the given executable (specified by its name) in the system's path.

Methods inherited from class java.lang.Object

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

Field Detail

EXECUTABLE_EXTENSIONS

private static final String[] EXECUTABLE_EXTENSIONS

The set of extensions (including the empty extension) to append to the searched executable name.

Constructor Detail

ExecUtils

public ExecUtils()

Method Detail

find

public static File find(String executable,
                        File... dirs)

Tries to find an executable with the given name. It first checks in of the given directories (if any) and then tries in the system's path. The lookup tries several extensions (.sh, .bash, .exe. .cmd. and .bat).

Parameters:

executable - the name of the program to find, generally without the extension

dirs - optional set of directories in which the program need to be searched before checking the system's path.

Returns:

the executable's file, null if not found

findExecutableInDirectory

private static File findExecutableInDirectory(String executable,
                                              File directory)

Tries to find the given executable (specified by its name) in the given directory. It checks for a file having one of the extensions contained in EXECUTABLE_EXTENSIONS, and checks that this file is executable.

Parameters:

executable - the name of the program to find, generally without the extension

directory - the directory in which the program is searched.

Returns:

the file of the program to be searched for if found. null otherwise. If the given directory is null or not a real directory, it also returns null.

findExecutableInSystemPath

public static File findExecutableInSystemPath(String executable)

Tries to find the given executable (specified by its name) in the system's path. It checks for a file having one of the extensions contained in EXECUTABLE_EXTENSIONS, and checks that this file is executable.

Parameters:

executable - the name of the program to find, generally without the extension

Returns:

the file of the program to be searched for if found. null otherwise.