public abstract class CommandLauncherImpl extends Object implements CommandLauncher
Constructor and Description |
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CommandLauncherImpl() |
Modifier and Type | Method and Description |
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Process |
exec(CommandLine cmd,
Map<String,String> env)
Launches the given command in a new process.
|
abstract Process |
exec(CommandLine cmd,
Map<String,String> env,
File workingDir)
Launches the given command in a new process, in the given working
directory.
|
boolean |
isFailure(int exitValue)
Checks whether
exitValue signals a failure on the current
system (OS specific). |
public Process exec(CommandLine cmd, Map<String,String> env) throws IOException
CommandLauncher
exec
in interface CommandLauncher
cmd
- The command to executeenv
- The environment for the new process. If null, the environment
of the current process is used.IOException
- if attempting to run a command in a specific directorypublic abstract Process exec(CommandLine cmd, Map<String,String> env, File workingDir) throws IOException
CommandLauncher
exec
in interface CommandLauncher
cmd
- The command to executeenv
- The environment for the new process. If null, the environment
of the current process is used.workingDir
- The directory to start the command in. If null, the current
directory is usedIOException
- if trying to change directorypublic boolean isFailure(int exitValue)
CommandLauncher
exitValue
signals a failure on the current
system (OS specific).
Note that this method relies on the conventions of the OS, it will return false results if the application you are running doesn't follow these conventions. One notable exception is the Java VM provided by HP for OpenVMS - it will return 0 if successful (like on any other platform), but this signals a failure on OpenVMS. So if you execute a new Java VM on OpenVMS, you cannot trust this method.
isFailure
in interface CommandLauncher
exitValue
- the exit value (return code) to be checkedtrue
if exitValue
signals a failureCommandLauncher.isFailure(int)
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