Package org.apache.storm.utils

Interface ShellCommandRunner

  • All Known Implementing Classes:
    ShellCommandRunnerImpl
    public interface ShellCommandRunner
    Contains convenience functions for running shell commands for cases that are too simple to need a full ShellUtils implementation.

    • Method Detail

      • execCommand

        String execCommand​(String... cmd)
            throws IOException
        Method to execute a shell command. Covers most of the simple cases without requiring the user to implement the ShellUtils interface.
        Parameters:
        cmd - shell command to execute.
        Returns:
        the output of the executed command.
        Throws:
        IOException

      • execCommand

        String execCommand​(Map<String,​String> env,
                   String[] cmd,
                   long timeout)
            throws IOException
        Method to execute a shell command. Covers most of the simple cases without requiring the user to implement the ShellUtils interface.
        Parameters:
        env - the map of environment key=value
        cmd - shell command to execute.
        timeout - time in milliseconds after which script should be marked timeout
        Returns:
        the output of the executed command.
        Throws:
        IOException

      • execCommand

        String execCommand​(Map<String,​String> env,
                   String... cmd)
            throws IOException
        Method to execute a shell command. Covers most of the simple cases without requiring the user to implement the ShellUtils interface.
        Parameters:
        env - the map of environment key=value
        cmd - shell command to execute.
        Returns:
        the output of the executed command.
        Throws:
        IOException

      • getTokenSeparatorRegex

        String getTokenSeparatorRegex()
        Token separator regex used to parse Shell tool outputs.