source: trunk/JavaHelperLib/src/de/ugoe/cs/util/console/defaultcommands/CMDexec.java @ 7

package de.ugoe.cs.util.console.defaultcommands;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.security.InvalidParameterException;
import java.util.List;

import de.ugoe.cs.util.console.Command;
import de.ugoe.cs.util.console.CommandExecuter;
import de.ugoe.cs.util.console.Console;

/**
 * <p>
 * Implements a command to execute batchs of {@link Command}s, defined by batch
 * file, to allow scripted executions.
 * </p>
 * 
 * @author Steffen Herbold
 */
public class CMDexec implements Command {

        /**
         * <p>
         * Executes a batch of {@link Command}s that are listed line by line in the
         * given file.
         * </p>
         * <p>
         * Usage: <code>exec filename</code>
         * </p>
         * 
         * @see de.ugoe.cs.util.console.commands.Command#run(java.util.List)
         */
        public void run(List<Object> parameters) {
                String script;
                try {
                        script = (String) parameters.get(0);
                } catch (Exception e) {
                        throw new InvalidParameterException();
                }
                try {
                        String[] commands;
                        File f = new File(script);
                        FileReader reader = new FileReader(f);
                        char[] buffer = new char[(int) f.length()];
                        reader.read(buffer);
                        commands = (new String(buffer)).split("\n");
                        for (String command : commands) {
                                Console.println(command);
                                CommandExecuter.getInstance().exec(command);
                        }
                        reader.close();
                } catch (FileNotFoundException e) {
                        Console.printerrln(e.getMessage());
                } catch (IOException e) {
                        Console.printerrln(e.getMessage());
                }
        }

        /*
         * (non-Javadoc)
         * 
         * @see databasebuilder.console.commands.Command#help()
         */
        @Override
        public void help() {
                Console.println("Usage: exec filename");
        }
}