org.jsoar.debugger.LoadPluginCommand Maven / Gradle / Ivy

Go to download
/*
 * Copyright (c) 2008  Dave Ray 
 *
 * Created on Dec 7, 2008
 */
package org.jsoar.debugger;

import java.lang.reflect.InvocationTargetException;

import org.jsoar.util.commands.PicocliSoarCommand;

import picocli.CommandLine.Command;
import picocli.CommandLine.HelpCommand;
import picocli.CommandLine.Model.CommandSpec;
import picocli.CommandLine.ParameterException;
import picocli.CommandLine.Parameters;
import picocli.CommandLine.Spec;

/**
 * @author ray
 */
public class LoadPluginCommand extends PicocliSoarCommand
{
    /**
     * @param debugger
     */
    public LoadPluginCommand(JSoarDebugger debugger)
    {
        super(null, new LoadPlugin(debugger));
    }

    @Command(name="load-plugin", description="Loads a debugger plugin",
            subcommands={HelpCommand.class})
    static public class LoadPlugin implements Runnable {
        
        private final JSoarDebugger debugger;
        
        @Spec
        private CommandSpec spec;
        
        @Parameters(index = "0", description = "Fully qualified class name of plugin. Must be on the classpath.")
        private String className;
        
        @Parameters(index = "1..*", description = "Zero or more arguments expected by the plugin.")
        private String[] args = {};
        
        public LoadPlugin(JSoarDebugger debugger) {
            this.debugger = debugger;
        }
        
        /* (non-Javadoc)
         * @see tcl.lang.Command#cmdProc(tcl.lang.Interp, tcl.lang.TclObject[])
         */
        @Override
        public void run()
        {
            try
            {
                Class klass = Class.forName(className);
                JSoarDebuggerPlugin plugin;
                try {
                    plugin = (JSoarDebuggerPlugin) klass.getConstructor().newInstance();
                } catch (IllegalArgumentException | InvocationTargetException | NoSuchMethodException
                        | SecurityException e) {
                    throw new ParameterException(spec.commandLine(), "Failed to instantiate plugin", e);
                }
                
                String[] initArgs = new String[args.length];
                for(int i = 0; i < args.length; ++i)
                {
                    initArgs[i] = args[i].toString();
                }
                
                plugin.initialize(debugger, initArgs);
                debugger.addPlugin(plugin);
            }
            catch (ClassNotFoundException e)
            {
                throw new ParameterException(spec.commandLine(), "Failed to find plugin class. Maybe it's not on the class path? : " + e.getMessage(), e);
            }
            catch (InstantiationException | IllegalAccessException | ClassCastException e)
            {
                throw new ParameterException(spec.commandLine(), e.getMessage(), e);
            }
        }
    
    }
}