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-rw-r--r--OpenSim/Region/Environment/Modules/ModuleFramework/Commander.cs271
1 files changed, 271 insertions, 0 deletions
diff --git a/OpenSim/Region/Environment/Modules/ModuleFramework/Commander.cs b/OpenSim/Region/Environment/Modules/ModuleFramework/Commander.cs
new file mode 100644
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--- /dev/null
+++ b/OpenSim/Region/Environment/Modules/ModuleFramework/Commander.cs
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1using System;
2using System.Collections.Generic;
3using System.Text;
4
5using OpenSim.Region.Environment.Interfaces;
6
7namespace OpenSim.Region.Environment.Modules.ModuleFramework
8{
9 /// <summary>
10 /// A single function call encapsulated in a class which enforces arguments when passing around as Object[]'s.
11 /// Used for console commands and script API generation
12 /// </summary>
13 public class Command : ICommand
14 {
15 private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
16
17 private Action<Object[]> m_command;
18 private string m_name;
19 private string m_help;
20 private List<CommandArgument> m_args = new List<CommandArgument>();
21
22 public Command(string name, Action<Object[]> command, string help)
23 {
24 m_name = name;
25 m_command = command;
26 m_help = help;
27 }
28
29 public void AddArgument(string name, string helptext, string type)
30 {
31 m_args.Add(new CommandArgument(name, helptext, type));
32 }
33
34 public string Name
35 {
36 get { return m_name; }
37 }
38
39 public string Help
40 {
41 get { return m_help; }
42 }
43
44 public Dictionary<string, string> Arguments
45 {
46 get
47 {
48 Dictionary<string, string> tmp = new Dictionary<string, string>();
49 foreach (CommandArgument arg in m_args)
50 {
51 tmp.Add(arg.Name, arg.ArgumentType);
52 }
53 return tmp;
54 }
55 }
56
57 public void ShowConsoleHelp()
58 {
59 m_log.Info("== " + Name + " ==");
60 m_log.Info(m_help);
61 m_log.Info("= Parameters =");
62 foreach (CommandArgument arg in m_args)
63 {
64 m_log.Info("* " + arg.Name + " (" + arg.ArgumentType + ")");
65 m_log.Info("\t" + arg.HelpText);
66 }
67 }
68
69 public void Run(Object[] args)
70 {
71 Object[] cleanArgs = new Object[m_args.Count];
72
73 if (args.Length < cleanArgs.Length)
74 {
75 m_log.Error("Missing " + (cleanArgs.Length - args.Length) + " argument(s)");
76 ShowConsoleHelp();
77 return;
78 }
79 if (args.Length > cleanArgs.Length)
80 {
81 m_log.Error("Too many arguments for this command. Type '<module> <command> help' for help.");
82 return;
83 }
84
85 int i = 0;
86 foreach (Object arg in args)
87 {
88 if (string.IsNullOrEmpty(arg.ToString()))
89 {
90 m_log.Error("Empty arguments are not allowed");
91 return;
92 }
93 try
94 {
95 switch (m_args[i].ArgumentType)
96 {
97 case "String":
98 m_args[i].ArgumentValue = arg.ToString();
99 break;
100 case "Integer":
101 m_args[i].ArgumentValue = Int32.Parse(arg.ToString());
102 break;
103 case "Double":
104 m_args[i].ArgumentValue = Double.Parse(arg.ToString());
105 break;
106 case "Boolean":
107 m_args[i].ArgumentValue = Boolean.Parse(arg.ToString());
108 break;
109 default:
110 m_log.Error("Unknown desired type for argument " + m_args[i].Name + " on command " + m_name);
111 break;
112 }
113 }
114 catch (FormatException)
115 {
116 m_log.Error("Argument number " + (i + 1) +
117 " (" + m_args[i].Name + ") must be a valid " +
118 m_args[i].ArgumentType.ToLower() + ".");
119 }
120 cleanArgs[i] = m_args[i].ArgumentValue;
121
122 i++;
123 }
124
125 m_command.Invoke(cleanArgs);
126 }
127 }
128
129 /// <summary>
130 /// A single command argument, contains name, type and at runtime, value.
131 /// </summary>
132 public class CommandArgument
133 {
134 private string m_name;
135 private string m_help;
136 private string m_type;
137 private Object m_val;
138
139 public CommandArgument(string name, string help, string type)
140 {
141 m_name = name;
142 m_help = help;
143 m_type = type;
144 }
145
146 public string Name
147 {
148 get { return m_name; }
149 }
150
151 public string HelpText
152 {
153 get { return m_help; }
154 }
155
156 public string ArgumentType
157 {
158 get { return m_type; }
159 }
160
161 public Object ArgumentValue
162 {
163 get { return m_val; }
164 set { m_val = value; }
165 }
166 }
167
168 /// <summary>
169 /// A class to enable modules to register console and script commands, which enforces typing and valid input.
170 /// </summary>
171 public class Commander : ICommander
172 {
173 private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
174 private Dictionary<string, ICommand> m_commands = new Dictionary<string, ICommand>();
175 private string m_name;
176
177 public Commander(string name)
178 {
179 m_name = name;
180 }
181
182 public void RegisterCommand(string commandName, ICommand command)
183 {
184 m_commands[commandName] = command;
185 }
186
187 void ShowConsoleHelp()
188 {
189 m_log.Info("===" + m_name + "===");
190 foreach (ICommand com in m_commands.Values)
191 {
192 m_log.Info("* " + com.Name + " - " + com.Help);
193 }
194 }
195
196 string EscapeRuntimeAPICommand(string command)
197 {
198 command = command.Replace('-', '_');
199 StringBuilder tmp = new StringBuilder(command);
200 tmp[0] = tmp[0].ToString().ToUpper().ToCharArray()[0];
201
202 return tmp.ToString();
203 }
204
205 /// <summary>
206 /// Generates a runtime C# class which can be compiled and inserted via reflection to enable modules to register new script commands
207 /// </summary>
208 /// <returns>Returns C# source code to create a binding</returns>
209 public string GenerateRuntimeAPI()
210 {
211 string classSrc = "\n\tpublic class " + m_name + " {\n";
212 foreach (ICommand com in m_commands.Values)
213 {
214 classSrc += "\tpublic void " + EscapeRuntimeAPICommand(com.Name) + "( ";
215 foreach (KeyValuePair<string, string> arg in com.Arguments)
216 {
217 classSrc += arg.Value + " " + Framework.Util.Md5Hash(arg.Key) + ",";
218 }
219 classSrc = classSrc.Remove(classSrc.Length - 1); // Delete the last comma
220 classSrc += " )\n\t{\n";
221 classSrc += "\t\tObject[] args = new Object[" + com.Arguments.Count.ToString() + "];\n";
222 int i = 0;
223 foreach (KeyValuePair<string, string> arg in com.Arguments)
224 {
225 classSrc += "\t\targs[" + i.ToString() + "] = " + Framework.Util.Md5Hash(arg.Key) + " " + ";\n";
226 i++;
227 }
228 classSrc += "\t\tGetCommander(\"" + m_name + "\").Run(\"" + com.Name + "\", args);\n";
229 classSrc += "\t}\n";
230 }
231 classSrc += "}\n";
232
233 return classSrc;
234 }
235
236 /// <summary>
237 /// Runs a specified function with attached arguments
238 /// *** <b>DO NOT CALL DIRECTLY.</b> ***
239 /// Call ProcessConsoleCommand instead if handling human input.
240 /// </summary>
241 /// <param name="function">The function name to call</param>
242 /// <param name="args">The function parameters</param>
243 public void Run(string function, object[] args)
244 {
245 m_commands[function].Run(args);
246 }
247
248 public void ProcessConsoleCommand(string function, string[] args)
249 {
250 if (m_commands.ContainsKey(function))
251 {
252 if (args[0] == "help")
253 {
254 m_commands[function].ShowConsoleHelp();
255 }
256 else
257 {
258 m_commands[function].Run(args);
259 }
260 }
261 else
262 {
263 if (function != "help")
264 m_log.Error("Invalid command - No such command exists");
265 if (function == "api")
266 m_log.Info(GenerateRuntimeAPI());
267 ShowConsoleHelp();
268 }
269 }
270 }
271}
generated by cgit v1.1 at 2024-12-26 21:51:55 +0000