Package pl.poznan.put.utility

Class ExecHelper

java.lang.Object
pl.poznan.put.utility.ExecHelper
Direct Known Subclasses:
ImmutableExecHelper
@Immutable public abstract class ExecHelper extends Object
An executor of external processes.

  • Constructor Details

    • ExecHelper

      public ExecHelper()

  • Method Details

    • createRandomDirectory

      public static File createRandomDirectory() throws IOException
      Generates a random name and creates a directory named like that in system temporary directory.
      Returns:
      A path to the created directory.
      Throws:
      IOException - When it was impossible to create the random directory.

    • workingDirectory

      public abstract Optional<File> workingDirectory()
      Returns:
      The working directory where to run the command in.

    • command

      public abstract String command()
      Returns:
      The command to run.

    • execute

      public ExecHelper.ExecutionResult execute() throws IOException
      Executes the command in a working directory (if provided) with environment setting (if provided).
      Returns:
      An object containing exit code with standard output and error streams.
      Throws:
      IOException - When it was impossible to run the external command.

    • environment

      @Default public Map<String,String> environment()
      Returns:
      The environment variables to be set during external command running (default: empty).

    • arguments

      @Default public List<String> arguments()
      Returns:
      The list of arguments to the command (default: empty).