DMDirc-Client/src/com/dmdirc/commandparser/parsers/ServerCommandParser.java

/*
 * Copyright (c) 2006-2010 Chris Smith, Shane Mc Cormack, Gregory Holmes
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.dmdirc.commandparser.parsers;

import com.dmdirc.FrameContainer;
import com.dmdirc.Server;
import com.dmdirc.ServerState;
import com.dmdirc.commandparser.CommandArguments;
import com.dmdirc.commandparser.CommandInfo;
import com.dmdirc.commandparser.CommandManager;
import com.dmdirc.commandparser.CommandType;
import com.dmdirc.commandparser.commands.Command;
import com.dmdirc.commandparser.commands.context.ServerCommandContext;
import com.dmdirc.ui.interfaces.Window;

/**
 * A command parser used in the context of a server.
 * 
 * @author chris
 */
public class ServerCommandParser extends GlobalCommandParser {
    
    /**
     * A version number for this class. It should be changed whenever the class
     * structure is changed (or anything else that would prevent serialized
     * objects being unserialized with the new class).
     */
    private static final long serialVersionUID = 1;
    
    /**
     * The server instance that this parser is attached to.
     */
    private Server server;
    
    /** {@inheritDoc} */
    @Override
    public void setOwner(final FrameContainer<?> owner) {
        if (server == null && owner instanceof Server) {
            server = (Server) owner;
        }

        super.setOwner(owner);
    }
    
    /** Loads the relevant commands into the parser. */
    @Override
    protected void loadCommands() {
        CommandManager.loadCommands(this, CommandType.TYPE_GLOBAL, CommandType.TYPE_SERVER);
    }
    
    /** {@inheritDoc} */
    @Override
    protected void executeCommand(final FrameContainer<?> origin,
            final Window window, final CommandInfo commandInfo,
            final Command command, final CommandArguments args) {
        if (commandInfo.getType() == CommandType.TYPE_SERVER) {
            if (hasCommandOptions(command) && !getCommandOptions(command).allowOffline()
                    && (server == null || (server.getState() != ServerState.CONNECTED
                    && server.getState() != ServerState.CONNECTING)
                    || server.getParser() == null)) {
                if (!args.isSilent()) {
                    origin.addLine("commandError", "You must be connected to use this command");
                }
            } else {
                command.execute(origin, args, new ServerCommandContext(window, commandInfo, server));
            }
        } else {
            super.executeCommand(origin, window, commandInfo, command, args);
        }
    }
    
    /**
     * Called when the input was a line of text that was not a command. This normally
     * means it is sent to the server/channel/user as-is, with no further processing.
     * @param origin The window in which the command was typed
     * @param line The line input by the user
     */
    @Override
    protected void handleNonCommand(final FrameContainer<?> origin, final String line) {
        server.sendLine(line);
    }
    
}