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package org.glassfish.embeddable;

/**
 * GlassFish has a very sophisticated command line interface (CLI) viz., 
 * 'asadmin' to executive administrative commands.
 *
 * This is a programmatic interface equivalent to 'asadmin'.
 *
 * 
This interface allows the execution of the adminstrative commands
 * from an application which embeds GlassFish.
 *
 * 
A command runner is obtained by calling
 * {@link org.glassfish.embeddable.GlassFish#getCommandRunner()}.
 *
 * 
A command runner is a per-lookup type object, which means each time
 * {@link GlassFish#getCommandRunner()} is called, it returns a new instance of command runner.
 *
 * Command specific options are passed in the var-args argument of {@link #run(String, String...)} method.
 *
 * @author [email protected]
 */
public interface CommandRunner {

    /**
     * Execute an administrative command in {@link GlassFish} using the supplied
     * command arguments. Refer to GlassFish Administration Guide to know about the commands supported
     * in GlassFish and their usage.
     *
     * 
Example: To add an additional http listener 9090 :
     *
     * 
     *      commandRunner.run("create-http-listener", "--listenerport", "9090",
     *                                       "--listeneraddress", "0.0.0.0",
     *                                       "--defaultvs", "server",
     *                                       "--securityenabled", "false",
     *                                       "listener_id", "my-http-listener-1");
     *
     * 
     * asadmin commands also allow option values to be specified using '=', so the above example can be written as:
     *
     *      *      commandRunner.run("create-http-listener", "--listenerport=9090",
     *                                       "--listeneraddress=0.0.0.0",
     *                                       "--defaultvs=server",
     *                                       "--securityenabled=false",
     *                                       "listener_id=my-http-listener-1");
     *
     * 
     * @param command command to be executed.
     * @param args command arguments.
     * @return {@link CommandResult} which encapsulates exit status, command output, failure cause (if any).
     */
    CommandResult run(String command, String... args);

    /**
     * Set the terse level.
     * If true, output data is very concise  and  in  a  format that  is  optimized  for  use  in programs
     * instead of for reading  by  humans. Typically,  descriptive  text  and detailed  status messages are
     * also omitted from the output data. Default is true.
     *
     * @param terse true to get concise output, false otherwise.
     */
    void setTerse(boolean terse);
}