public CommandExecutor(ICommandExpressionParser parser = null)
{
_root = new CommandTreeNode();
_parser = parser ?? CommandExpressionParser.Instance;
_output = NullCommandOutlet.Instance;
_error = CommandErrorWriter.Instance;
}
public CommandExecutorContext(ICommandExecutor executor, CommandLine commandLine, CommandTreeNode commandNode, object parameter) : base(executor, null, commandNode, parameter)
{
if(commandLine == null)
throw new ArgumentNullException("commandLine");
_commandLine = commandLine;
}
public CommandExecutor(ICommandExpressionParser parser = null)
{
_root = new CommandTreeNode();
_parser = parser ?? CommandExpressionParser.Instance;
_output = NullCommandOutlet.Instance;
_error = CommandErrorWriter.Instance;
}
public CommandTreeNode(ICommand command, CommandTreeNode parent = null) : base(command.Name, parent)
{
if(command == null)
throw new ArgumentNullException("command");
_command = command;
_children = new CommandTreeNodeCollection(this);
}
public CommandExecutor(ICommandExpressionParser parser = null)
{
_root = new CommandTreeNode();
_parser = parser ?? CommandExpressionParser.Instance;
_output = NullCommandOutlet.Instance;
_error = CommandErrorWriter.Instance;
_states = new Dictionary <string, object>(StringComparer.OrdinalIgnoreCase);
}
public CommandContext(ICommandExecutor executor, CommandLine commandLine, CommandTreeNode commandNode, object parameter, IDictionary<string, object> items = null) : base(executor, commandNode, parameter, items)
{
_commandLine = commandLine;
if(commandLine == null)
_options = new CommandOptionCollection(this.Command);
else
_options = new CommandOptionCollection(this.Command, (System.Collections.IDictionary)commandLine.Options);
}
public CommandTreeNode(ICommand command, CommandTreeNode parent = null) : base(command.Name, parent)
{
if (command == null)
{
throw new ArgumentNullException("command");
}
_command = command;
_children = new CommandTreeNodeCollection(this);
}
protected CommandExecutorContextBase(ICommandExecutor executor, string commandText, CommandTreeNode commandNode, object parameter)
{
if(executor == null)
throw new ArgumentNullException("executor");
_executor = executor;
_commandText = commandText;
_commandNode = commandNode;
_command = commandNode == null ? null : commandNode.Command;
_parameter = parameter;
}
public void Load(CommandTreeNode node)
{
if(node == null || _isLoaded)
return;
lock(_syncRoot)
{
if(_isLoaded)
return;
_isLoaded = this.OnLoad(node);
}
}
public CommandContext(ICommandExecutor executor, CommandLine commandLine, CommandTreeNode commandNode, object parameter, IDictionary <string, object> items = null) : base(executor, commandNode, parameter, items)
{
_commandLine = commandLine;
if (commandLine == null)
{
_options = new CommandOptionCollection(this.Command);
}
else
{
_options = new CommandOptionCollection(this.Command, (System.Collections.IDictionary)commandLine.Options);
}
}
protected CommandExecutorContextBase(ICommandExecutor executor, string commandText, CommandTreeNode commandNode, object parameter)
{
if (executor == null)
{
throw new ArgumentNullException("executor");
}
_executor = executor;
_commandText = commandText;
_commandNode = commandNode;
_command = commandNode == null ? null : commandNode.Command;
_parameter = parameter;
}
protected CommandContextBase(ICommandExecutor executor, CommandTreeNode commandNode, object parameter, IDictionary<string, object> extendedProperties = null)
{
if(commandNode == null)
throw new ArgumentNullException("commandNode");
if(commandNode.Command == null)
throw new ArgumentException(string.Format("The Command property of '{0}' command-node is null.", commandNode.FullPath));
_commandNode = commandNode;
_command = commandNode.Command;
_parameter = parameter;
_extendedProperties = extendedProperties;
_executor = executor;
}
protected CommandContext(CommandContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
_session = context._session;
_expression = context._expression;
_command = context._command;
_commandNode = context._commandNode;
_parameter = context._parameter;
_states = context._states;
}
public CommandContext(ICommandExecutor executor, CommandExpression expression, CommandTreeNode commandNode, object parameter, IDictionary<string, object> extendedProperties = null)
{
if(commandNode == null)
throw new ArgumentNullException("commandNode");
if(commandNode.Command == null)
throw new ArgumentException(string.Format("The Command property of '{0}' command-node is null.", commandNode.FullPath));
_executor = executor;
_commandNode = commandNode;
_command = commandNode.Command;
_parameter = parameter;
_expression = expression;
if(extendedProperties != null && extendedProperties.Count > 0)
_extendedProperties = new Dictionary<string, object>(extendedProperties, StringComparer.OrdinalIgnoreCase);
}
public void Load(CommandTreeNode node)
{
if (node == null || _isLoaded)
{
return;
}
lock (_syncRoot)
{
if (_isLoaded)
{
return;
}
_isLoaded = this.OnLoad(node);
}
}
protected CommandContextBase(ICommandExecutor executor, CommandTreeNode commandNode, object parameter, IDictionary <string, object> extendedProperties = null)
{
if (commandNode == null)
{
throw new ArgumentNullException("commandNode");
}
if (commandNode.Command == null)
{
throw new ArgumentException(string.Format("The Command property of '{0}' command-node is null.", commandNode.FullPath));
}
_commandNode = commandNode;
_command = commandNode.Command;
_parameter = parameter;
_extendedProperties = extendedProperties;
_executor = executor;
}
private CommandTreeNode FindUp(CommandTreeNode current, Predicate <CommandTreeNode> predicate)
{
if (current == null || predicate == null)
{
return(null);
}
while (current != null)
{
if (predicate(current))
{
return(current);
}
current = current.Parent;
}
return(null);
}
private CommandTreeNode FindDown(CommandTreeNode current, Predicate <CommandTreeNode> predicate)
{
if (current == null || predicate == null)
{
return(null);
}
if (predicate(current))
{
return(current);
}
foreach (var child in current._children)
{
if (this.FindDown(child, predicate) != null)
{
return(child);
}
}
return(null);
}
public CommandContext(CommandExecutorContext session, CommandExpression expression, CommandTreeNode commandNode, object parameter, IDictionary <string, object> extendedProperties = null)
{
if (commandNode == null)
{
throw new ArgumentNullException(nameof(commandNode));
}
if (commandNode.Command == null)
{
throw new ArgumentException($"The Command property of '{commandNode.FullPath}' command-node is null.");
}
_session = session;
_commandNode = commandNode;
_command = commandNode.Command;
_parameter = parameter;
_expression = expression;
if (extendedProperties != null && extendedProperties.Count > 0)
{
_states = new Dictionary <string, object>(extendedProperties, StringComparer.OrdinalIgnoreCase);
}
}
public CommandContext(ICommandExecutor executor, CommandExpression expression, CommandTreeNode commandNode, object parameter, IDictionary <string, object> extendedProperties = null)
{
if (commandNode == null)
{
throw new ArgumentNullException("commandNode");
}
if (commandNode.Command == null)
{
throw new ArgumentException(string.Format("The Command property of '{0}' command-node is null.", commandNode.FullPath));
}
_executor = executor;
_commandNode = commandNode;
_command = commandNode.Command;
_parameter = parameter;
_expression = expression;
if (extendedProperties != null && extendedProperties.Count > 0)
{
_extendedProperties = new Dictionary <string, object>(extendedProperties, StringComparer.OrdinalIgnoreCase);
}
}
protected override bool OnLoad(CommandTreeNode node)
{
node.Children.Add(new FtpAborCommand());
node.Children.Add(new FtpAlloCommand());
node.Children.Add(new FtpAppeCommand());
node.Children.Add(new FtpCdupCommand());
node.Children.Add(new FtpCwdCommand());
node.Children.Add(new FtpDeleCommand());
node.Children.Add(new FtpFeatCommand());
node.Children.Add(new FtpHelpCommand());
node.Children.Add(new FtpListCommand());
node.Children.Add(new FtpMdtmCommand());
node.Children.Add(new FtpMfmtCommand());
node.Children.Add(new FtpMkdCommand());
node.Children.Add(new FtpMlsdCommand());
node.Children.Add(new FtpMlstCommand());
node.Children.Add(new FtpNoopCommand());
node.Children.Add(new FtpOptsCommand());
node.Children.Add(new FtpPassCommand());
node.Children.Add(new FtpPasvCommand());
node.Children.Add(new FtpPortCommand());
node.Children.Add(new FtpPwdCommand());
node.Children.Add(new FtpQuitCommand());
node.Children.Add(new FtpRestCommand());
node.Children.Add(new FtpRetrCommand());
node.Children.Add(new FtpRmdCommand());
node.Children.Add(new FtpRnfrCommand());
node.Children.Add(new FtpRntoCommand());
node.Children.Add(new FtpSizeCommand());
node.Children.Add(new FtpStorCommand());
node.Children.Add(new FtpSystCommand());
node.Children.Add(new FtpTypeCommand());
node.Children.Add(new FtpUserCommand());
//返回加载成功
return true;
}
public TerminalCommandContext(TerminalCommandExecutor executor, CommandLine commandLine, CommandTreeNode commandNode, object parameter, IDictionary<string, object> items = null) : base(executor, commandLine, commandNode, parameter, items)
{
}
public CommandTreeNode(string name, CommandTreeNode parent) : base(name, parent)
{
_children = new CommandTreeNodeCollection(this);
}
public TerminalCommandContext(TerminalCommandExecutor executor, CommandExpression expression, CommandTreeNode commandNode, object parameter, IDictionary<string, object> extendedProperties = null) : base(executor, expression, commandNode, parameter, extendedProperties)
{
}
protected CommandExecutorBase()
{
_root = new CommandTreeNode();
}
/// <summary> /// 执行加载命令的实际操作。 /// </summary> /// <param name="node">待加载的命令树节点。</param> /// <returns>如果加载成功则返回真(true)，否则返回假(false)。</returns> protected abstract bool OnLoad(CommandTreeNode node);
protected override CommandContext CreateCommandContext(CommandExpression expression, CommandTreeNode node, object parameter)
{
var args = parameter as ReceivedEventArgs;
if(args == null)
throw new InvalidOperationException("Invalid execution parameter.");
return new FtpCommandContext(
this,
expression,
node.Command,
(FtpServerChannel)args.Channel,
(FtpStatement)args.ReceivedObject);
}
public CommandTreeNode(string name, CommandTreeNode parent = null) : base(name, parent)
{
_children = new CommandTreeNodeCollection(this);
}
protected virtual CommandContext CreateCommandContext(CommandExecutorContext session, CommandExpression expression, CommandTreeNode node, object parameter)
{
return(node == null || node.Command == null ? null : new CommandContext(session, expression, node, parameter));
}
public CommandExecutorContext(ICommandExecutor executor, CommandLine commandLine, CommandTreeNode commandNode, object parameter) : base(executor, null, commandNode, parameter)
{
if (commandLine == null)
{
throw new ArgumentNullException("commandLine");
}
_commandLine = commandLine;
}
protected virtual CommandContext CreateCommandContext(CommandExpression expression, CommandTreeNode node, object parameter)
{
return new CommandContext(this, expression, node, parameter);
}
/// <summary> /// 执行加载命令的实际操作。 /// </summary> /// <param name="node">待加载的命令树节点。</param> /// <returns>如果加载成功则返回真(true)，否则返回假(false)。</returns> protected abstract bool OnLoad(CommandTreeNode node);
protected virtual object ExecuteCommand(CommandExecutorContext context, CommandExpression expression, CommandTreeNode node, object parameter)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (node == null)
{
throw new ArgumentNullException(nameof(node));
}
if (node.Command == null)
{
return(null);
}
return(node.Command.Execute(this.CreateCommandContext(expression, node, parameter)));
}
protected virtual CommandContext CreateCommandContext(CommandExpression expression, CommandTreeNode node, object parameter)
{
return(new CommandContext(this, expression, node, parameter));
}
private CommandTreeNode FindDown(CommandTreeNode current, Predicate<CommandTreeNode> predicate)
{
if(current == null || predicate == null)
return null;
if(predicate(current))
return current;
foreach(var child in current._children)
{
if(this.FindDown(child, predicate) != null)
return child;
}
return null;
}
protected virtual object ExecuteCommand(CommandExecutorContext context, CommandExpression expression, CommandTreeNode node, object parameter)
{
if(context == null)
throw new ArgumentNullException(nameof(context));
if(node == null)
throw new ArgumentNullException(nameof(node));
if(node.Command == null)
return null;
return node.Command.Execute(this.CreateCommandContext(expression, node, parameter));
}
protected override void OnExecuted(CommandExecutorExecutedEventArgs args)
{
var commandNode = args.CommandNode;
//更新当前命令节点，只有当前命令树节点不是叶子节点并且为空命令节点
if(commandNode != null && commandNode.Children.Count > 0 && commandNode.Command == null)
this.Current = commandNode;
base.OnExecuted(args);
}
