trunk/posUpdate/XmlPatch.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;
using System.Xml;

namespace xmlTools
{
    /// <summary>
    /// This classes parses a .patch xml tools file and applies its content to the files which it specifies
    /// </summary>
    class XmlPatch
    {
        String fileName;
        String forceFiles = "";

        public XmlPatch(String file)
        {
            fileName = file;
        }

        public XmlPatch(String file, String forceInFiles)
        {
            fileName = file;
            forceFiles = forceInFiles; //We support apply the operation in diverse forced files (NameOfFile parameter will be ignored)
        }

        /// <summary>
        /// Applies the patch file. Returns true if successful otherwise returns false.
        /// </summary>
        /// <returns></returns>
        public bool startPatch()
        {
            string line;

            // Read the file and display it line by line.
            System.IO.StreamReader file = new System.IO.StreamReader(fileName);

            while ((line = file.ReadLine()) != null) //read while we don't reach the end of the file
            {
                if (line.StartsWith("@ADDTO "))
                {
                    string operation = line;
                    string xmlToInject = "";

                    file.ReadLine(); //ignore <xml> start header
                    while ((line = file.ReadLine()) != "</xml>")
                    {
                        xmlToInject += line + "\n"; //get all the xml that will be injected
                    }
                    if (!addOperation(operation, xmlToInject))
                    {
                        Program.printAppError(Program.appErrors.PATCH_ADDTO_PROCESS_ERROR, "Error while performing adding operation in patch file. Aborting...");
                        return false;
                    }
                }
                else if (line.StartsWith("@REMOVE "))
                {
                    if (!removeOperation(line))
                    {
                        Program.printAppError(Program.appErrors.PATCH_REMOVE_PROCESS_ERROR, "Error while performing remove operation in patch file. Aborting...");
                        return false;
                    }
                }
                else if (line.StartsWith("@COMMAND "))
                {
                    if (!executeCommand(line))
                    {
                        Program.printAppError(Program.appErrors.PATCH_COMMAND_PROCESS_ERROR, "Error while performing command operation in patch file. Aborting...");
                        return false;
                    }
                }
            }

            file.Close();

            return true;
        }

        /// <summary>
        /// Inserts xml in a desired Element. Returns true or false if it succeeds
        /// </summary>
        /// <param name="operation"></param>
        /// <param name="xmlToInject"></param>
        /// <returns></returns>
        private bool addOperation(string operation, string xmlToInject)
        {
            //@ADDTO File "example.xml" ParentElement "Animation" Element "Lookup"

            string File = "", ParentElement = "", Element = "";

            //---------------------------------------------------Parse Operation command (start)
            try
            {
                if (forceFiles == null)
                {
                    File = getPatchParameter(operation, "File");
                }
                else
                {
                    File = forceFiles;
                }

                ParentElement = getPatchParameter(operation, "ParentElement"); //Get the ParentElement

                Element = getPatchParameter(operation, "Element"); //Get the Element
            }
            catch (Exception e)
            {
                Program.printAppError(Program.appErrors.PATCH_ADDTO_ERROR_PARSING_XML, "Error parsing addOperation in Patch file.\n" + e.ToString());
                return false;
            }

            if (Element == "")
            {
                return false;
            }

            //---------------------------------------------------Parse Operation command (end)
            List<String> filesToProcess = new List<String>();
            if (File == "")
            {
                filesToProcess = Util.getAllXmlFiles(); //no file specified, use all xml files found in same folder
            }
            else if (Util.containsWildcard(File))
            {
                filesToProcess = Util.getXmlFilesWildcard(File);
            }
            else
            {
                filesToProcess.Add(File);
            }

            //---------------------------------------------------XML Injection (start)
            foreach (String currFile in filesToProcess)
            {

                Util.backupFile(currFile);

                XmlDocument xdoc = new XmlDocument();
                xdoc.Load(currFile);

                List<XmlNode> myElements = new List<XmlNode>();
                Util.getAllSpecificElements(xdoc.DocumentElement, ref myElements, Element, ParentElement); //Returns all after "Oni" element

                if (myElements.Count == 0)
                {
                    Program.printAppError(Program.appErrors.PATCH_ELEMENT_NOT_FOUND, "Error in addOperation in Patch file: the element specified doesn't exist.");
                    return false;
                }

                try
                {
                    XmlNode newXml = xdoc.ImportNode(Util.stringToXmlNode(xmlToInject), true); //necessary to import node or ArgumentException will be thrown when appending

                    myElements[myElements.Count - 1].AppendChild(newXml); // Append the code after last element

                    xdoc.Save(currFile);
                }
                catch (XmlException e)
                {
                    Program.printAppError(Program.appErrors.PATCH_ADDTO_ERROR_PARSING_XML, "Error parsing xml to addOperation in Patch file.\n" + e.ToString());
                    return false;
                }
            }
            //---------------------------------------------------XML Injection (end)

            return true;
        }

        /// <summary>
        /// Removes a xml element, right now it removes the first element it finds with matchs "Element" and "ParentElement" parameters
        /// </summary>
        /// <param name="operation"></param>
        /// <returns>true or false depending if succeed or not</returns>
        private bool removeOperation(string operation)
        {
            //@REMOVE File "example.xml" ParentElement "Particles" Element "Particle"

            string File = "", ParentElement = "", Element = "";

            //---------------------------------------------------Parse Operation command (start)
            try
            {
                if (forceFiles == null)
                {
                    File = getPatchParameter(operation, "File");
                }
                else
                {
                    File = forceFiles;
                }

                ParentElement = getPatchParameter(operation, "ParentElement"); //Get the ParentElement

                Element = getPatchParameter(operation, "Element"); //Get the Element
            }
            catch (Exception e)
            {
                Program.printAppError(Program.appErrors.PATCH_REMOVE_PROCESS_ERROR, "Error parsing removeOperation in Patch file.\n" + e.ToString());
                return false;
            }

            if (Element == "")
            {
                return false;
            }

            //---------------------------------------------------Parse Operation command (end)

            List<String> filesToProcess = new List<String>();
            if (File == "")
            {
                filesToProcess = Util.getAllXmlFiles(); //no file specified, use all xml files found in same folder
            }
            else if (Util.containsWildcard(File))
            {
                filesToProcess = Util.getXmlFilesWildcard(File);
            }
            else
            {
                filesToProcess.Add(File);
            }

            //---------------------------------------------------XML Remove (start)

            foreach (String currFile in filesToProcess)
            {

                Util.backupFile(currFile);

                XmlDocument xdoc = new XmlDocument();
                xdoc.Load(currFile);

                List<XmlNode> myElements = new List<XmlNode>();
                Util.getAllSpecificElements(xdoc.DocumentElement, ref myElements, Element, ParentElement); //Returns all after "Oni" element

                if (myElements.Count == 0)
                {
                    Program.printAppError(Program.appErrors.PATCH_ELEMENT_NOT_FOUND, "Error in removeOperation in Patch file: the element specified doesn't exist.");
                    return false;
                }

                myElements[0].ParentNode.RemoveChild(myElements[0]); // Removes the first occurrence which matches the "Element" and "ParentElement" given

                xdoc.Save(currFile);

            }
            //---------------------------------------------------XML Remove (end)


            return true;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="command"></param>
        /// <returns>true or false depending if succeed or not</returns>
        private bool executeCommand(string command)
        {
            //---------------------------------------------------Parse Operation command (start)

            command = command.Replace("@COMMAND ", ""); //get only the command to process

            if (command.Trim() == "")
            {
                Program.printAppError(Program.appErrors.PATCH_COMMAND_NOT_FOUND, "Error parsing commandOperation in Patch file: Command is empty.");
                return false;
            }

            try
            {
                if (forceFiles != null)
                {
                    string paramType = "";

                    // Filename already exists?
                    if (command.IndexOf("filename:") != -1)
                    {
                        paramType = "filename:";
                    }
                    else if (command.IndexOf("filename=") != -1)
                    {
                        paramType = "filename=";
                    }
                    // Add the filename if it doesn't exists
                    else
                    {
                        command = command.Insert(command.Length-1," -filename:" + this.forceFiles); // -2 to be inside quotes
                    }

                    if (paramType != "")
                    {
                        int startIdx = command.IndexOf(paramType) + paramType.Length;
                        int endIdx = command.IndexOf(" ", startIdx); // it may end with space
                        if (endIdx == -1)
                        {
                            endIdx = command.IndexOf("\"", startIdx); // or with quotes
                        }
                        string currFilename = command.Substring(startIdx, endIdx - startIdx);
                        command = command.Replace(currFilename, this.forceFiles);
                    }

                }

                command = command.Replace("\"", ""); // remove quotes

                ProcessStartInfo startInfo = new ProcessStartInfo();
                if (!Util.IsRunningOnMono())
                {
                    startInfo.FileName = Util.getExeFileName();
                }
                else{
                    startInfo.FileName = "mono";
                }
                if (!Util.IsRunningOnMono())
                {
                    startInfo.Arguments = command;
                }
                else{
                    startInfo.Arguments = Util.getExeFileName() + " " + command;
                }
                startInfo.UseShellExecute = false; // necessary to redirect output
                startInfo.RedirectStandardOutput = true;
                startInfo.RedirectStandardError = true;
                startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden; // hide new process window

                Process p = System.Diagnostics.Process.Start(startInfo);
                p.OutputDataReceived += commandStdOutputReceived;
                p.ErrorDataReceived += commandStdErrorReceived;
                p.BeginOutputReadLine();
                p.BeginErrorReadLine();
                p.WaitForExit();
            }
            catch (Exception e)
            {
                Program.printAppError(Program.appErrors.PATCH_COMMAND_PROCESS_ERROR, "Error processing command in Patch file.\n" + e.ToString());
                return false;
            }

            return true;
        }

        /// <summary>
        /// Reads asynchronously output from the new process where the command will be executed
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void commandStdOutputReceived(object sender, DataReceivedEventArgs e)
        {

            string myData = e.Data;

            if (myData != null)
            {
                if (myData.EndsWith("\n"))
                {
                    Console.Write(myData);
                }
                else
                {
                    Console.WriteLine(myData);
                }
            }

        }

        private void commandStdErrorReceived(object sender, DataReceivedEventArgs e)
        {

            string myData = e.Data;

            if (myData != null)
            {
                if (myData.EndsWith("\n"))
                {
                    Console.Error.Write(myData);
                }
                else
                {
                    Console.Error.WriteLine(myData);
                }
            }

        }

        private string getPatchParameter(string line, string parameterName)
        {
            string result = "";
            int startIdx = 0, endIdx = 0;

            string temp = parameterName + " \"";

            startIdx = line.IndexOf(temp);
            if (startIdx != -1) //we have Parameter specified
            {
                startIdx += temp.Length;
                endIdx = line.IndexOf("\"", startIdx);
                result = line.Substring(startIdx, endIdx - startIdx); //Get the parameter value
            }

            return result;
        }
    }
}
Revision:	710
Committed:	Thu Mar 21 10:40:24 2013 UTC (12 years, 7 months ago) by s10k
Original Path:	*posUpdate/posUpdate/XmlPatch.cs*
File size:	15051 byte(s)
Log Message:
#	Content
1	using System;
2	using System.Collections.Generic;
3	using System.Diagnostics;
4	using System.Text;
5	using System.Xml;
6
7	namespace xmlTools
8	{
9	/// <summary>
10	/// This classes parses a .patch xml tools file and applies its content to the files which it specifies
11	/// </summary>
12	class XmlPatch
13	{
14	String fileName;
15	String forceFiles = "";
16
17	public XmlPatch(String file)
18	{
19	fileName = file;
20	}
21
22	public XmlPatch(String file, String forceInFiles)
23	{
24	fileName = file;
25	forceFiles = forceInFiles; //We support apply the operation in diverse forced files (NameOfFile parameter will be ignored)
26	}
27
28	/// <summary>
29	/// Applies the patch file. Returns true if successful otherwise returns false.
30	/// </summary>
31	/// <returns></returns>
32	public bool startPatch()
33	{
34	string line;
35
36	// Read the file and display it line by line.
37	System.IO.StreamReader file = new System.IO.StreamReader(fileName);
38
39	while ((line = file.ReadLine()) != null) //read while we don't reach the end of the file
40	{
41	if (line.StartsWith("@ADDTO "))
42	{
43	string operation = line;
44	string xmlToInject = "";
45
46	file.ReadLine(); //ignore <xml> start header
47	while ((line = file.ReadLine()) != "</xml>")
48	{
49	xmlToInject += line + "\n"; //get all the xml that will be injected
50	}
51	if (!addOperation(operation, xmlToInject))
52	{
53	Program.printAppError(Program.appErrors.PATCH_ADDTO_PROCESS_ERROR, "Error while performing adding operation in patch file. Aborting...");
54	return false;
55	}
56	}
57	else if (line.StartsWith("@REMOVE "))
58	{
59	if (!removeOperation(line))
60	{
61	Program.printAppError(Program.appErrors.PATCH_REMOVE_PROCESS_ERROR, "Error while performing remove operation in patch file. Aborting...");
62	return false;
63	}
64	}
65	else if (line.StartsWith("@COMMAND "))
66	{
67	if (!executeCommand(line))
68	{
69	Program.printAppError(Program.appErrors.PATCH_COMMAND_PROCESS_ERROR, "Error while performing command operation in patch file. Aborting...");
70	return false;
71	}
72	}
73	}
74
75	file.Close();
76
77	return true;
78	}
79
80	/// <summary>
81	/// Inserts xml in a desired Element. Returns true or false if it succeeds
82	/// </summary>
83	/// <param name="operation"></param>
84	/// <param name="xmlToInject"></param>
85	/// <returns></returns>
86	private bool addOperation(string operation, string xmlToInject)
87	{
88	//@ADDTO File "example.xml" ParentElement "Animation" Element "Lookup"
89
90	string File = "", ParentElement = "", Element = "";
91
92	//---------------------------------------------------Parse Operation command (start)
93	try
94	{
95	if (forceFiles == null)
96	{
97	File = getPatchParameter(operation, "File");
98	}
99	else
100	{
101	File = forceFiles;
102	}
103
104	ParentElement = getPatchParameter(operation, "ParentElement"); //Get the ParentElement
105
106	Element = getPatchParameter(operation, "Element"); //Get the Element
107	}
108	catch (Exception e)
109	{
110	Program.printAppError(Program.appErrors.PATCH_ADDTO_ERROR_PARSING_XML, "Error parsing addOperation in Patch file.\n" + e.ToString());
111	return false;
112	}
113
114	if (Element == "")
115	{
116	return false;
117	}
118
119	//---------------------------------------------------Parse Operation command (end)
120	List<String> filesToProcess = new List<String>();
121	if (File == "")
122	{
123	filesToProcess = Util.getAllXmlFiles(); //no file specified, use all xml files found in same folder
124	}
125	else if (Util.containsWildcard(File))
126	{
127	filesToProcess = Util.getXmlFilesWildcard(File);
128	}
129	else
130	{
131	filesToProcess.Add(File);
132	}
133
134	//---------------------------------------------------XML Injection (start)
135	foreach (String currFile in filesToProcess)
136	{
137
138	Util.backupFile(currFile);
139
140	XmlDocument xdoc = new XmlDocument();
141	xdoc.Load(currFile);
142
143	List<XmlNode> myElements = new List<XmlNode>();
144	Util.getAllSpecificElements(xdoc.DocumentElement, ref myElements, Element, ParentElement); //Returns all after "Oni" element
145
146	if (myElements.Count == 0)
147	{
148	Program.printAppError(Program.appErrors.PATCH_ELEMENT_NOT_FOUND, "Error in addOperation in Patch file: the element specified doesn't exist.");
149	return false;
150	}
151
152	try
153	{
154	XmlNode newXml = xdoc.ImportNode(Util.stringToXmlNode(xmlToInject), true); //necessary to import node or ArgumentException will be thrown when appending
155
156	myElements[myElements.Count - 1].AppendChild(newXml); // Append the code after last element
157
158	xdoc.Save(currFile);
159	}
160	catch (XmlException e)
161	{
162	Program.printAppError(Program.appErrors.PATCH_ADDTO_ERROR_PARSING_XML, "Error parsing xml to addOperation in Patch file.\n" + e.ToString());
163	return false;
164	}
165	}
166	//---------------------------------------------------XML Injection (end)
167
168	return true;
169	}
170
171	/// <summary>
172	/// Removes a xml element, right now it removes the first element it finds with matchs "Element" and "ParentElement" parameters
173	/// </summary>
174	/// <param name="operation"></param>
175	/// <returns>true or false depending if succeed or not</returns>
176	private bool removeOperation(string operation)
177	{
178	//@REMOVE File "example.xml" ParentElement "Particles" Element "Particle"
179
180	string File = "", ParentElement = "", Element = "";
181
182	//---------------------------------------------------Parse Operation command (start)
183	try
184	{
185	if (forceFiles == null)
186	{
187	File = getPatchParameter(operation, "File");
188	}
189	else
190	{
191	File = forceFiles;
192	}
193
194	ParentElement = getPatchParameter(operation, "ParentElement"); //Get the ParentElement
195
196	Element = getPatchParameter(operation, "Element"); //Get the Element
197	}
198	catch (Exception e)
199	{
200	Program.printAppError(Program.appErrors.PATCH_REMOVE_PROCESS_ERROR, "Error parsing removeOperation in Patch file.\n" + e.ToString());
201	return false;
202	}
203
204	if (Element == "")
205	{
206	return false;
207	}
208
209	//---------------------------------------------------Parse Operation command (end)
210
211	List<String> filesToProcess = new List<String>();
212	if (File == "")
213	{
214	filesToProcess = Util.getAllXmlFiles(); //no file specified, use all xml files found in same folder
215	}
216	else if (Util.containsWildcard(File))
217	{
218	filesToProcess = Util.getXmlFilesWildcard(File);
219	}
220	else
221	{
222	filesToProcess.Add(File);
223	}
224
225	//---------------------------------------------------XML Remove (start)
226
227	foreach (String currFile in filesToProcess)
228	{
229
230	Util.backupFile(currFile);
231
232	XmlDocument xdoc = new XmlDocument();
233	xdoc.Load(currFile);
234
235	List<XmlNode> myElements = new List<XmlNode>();
236	Util.getAllSpecificElements(xdoc.DocumentElement, ref myElements, Element, ParentElement); //Returns all after "Oni" element
237
238	if (myElements.Count == 0)
239	{
240	Program.printAppError(Program.appErrors.PATCH_ELEMENT_NOT_FOUND, "Error in removeOperation in Patch file: the element specified doesn't exist.");
241	return false;
242	}
243
244	myElements[0].ParentNode.RemoveChild(myElements[0]); // Removes the first occurrence which matches the "Element" and "ParentElement" given
245
246	xdoc.Save(currFile);
247
248	}
249	//---------------------------------------------------XML Remove (end)
250
251
252	return true;
253	}
254
255	/// <summary>
256	///
257	/// </summary>
258	/// <param name="command"></param>
259	/// <returns>true or false depending if succeed or not</returns>
260	private bool executeCommand(string command)
261	{
262	//---------------------------------------------------Parse Operation command (start)
263
264	command = command.Replace("@COMMAND ", ""); //get only the command to process
265
266	if (command.Trim() == "")
267	{
268	Program.printAppError(Program.appErrors.PATCH_COMMAND_NOT_FOUND, "Error parsing commandOperation in Patch file: Command is empty.");
269	return false;
270	}
271
272	try
273	{
274	if (forceFiles != null)
275	{
276	string paramType = "";
277
278	// Filename already exists?
279	if (command.IndexOf("filename:") != -1)
280	{
281	paramType = "filename:";
282	}
283	else if (command.IndexOf("filename=") != -1)
284	{
285	paramType = "filename=";
286	}
287	// Add the filename if it doesn't exists
288	else
289	{
290	command = command.Insert(command.Length-1," -filename:" + this.forceFiles); // -2 to be inside quotes
291	}
292
293	if (paramType != "")
294	{
295	int startIdx = command.IndexOf(paramType) + paramType.Length;
296	int endIdx = command.IndexOf(" ", startIdx); // it may end with space
297	if (endIdx == -1)
298	{
299	endIdx = command.IndexOf("\"", startIdx); // or with quotes
300	}
301	string currFilename = command.Substring(startIdx, endIdx - startIdx);
302	command = command.Replace(currFilename, this.forceFiles);
303	}
304
305	}
306
307	command = command.Replace("\"", ""); // remove quotes
308
309	ProcessStartInfo startInfo = new ProcessStartInfo();
310	if (!Util.IsRunningOnMono())
311	{
312	startInfo.FileName = Util.getExeFileName();
313	}
314	else{
315	startInfo.FileName = "mono";
316	}
317	if (!Util.IsRunningOnMono())
318	{
319	startInfo.Arguments = command;
320	}
321	else{
322	startInfo.Arguments = Util.getExeFileName() + " " + command;
323	}
324	startInfo.UseShellExecute = false; // necessary to redirect output
325	startInfo.RedirectStandardOutput = true;
326	startInfo.RedirectStandardError = true;
327	startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden; // hide new process window
328
329	Process p = System.Diagnostics.Process.Start(startInfo);
330	p.OutputDataReceived += commandStdOutputReceived;
331	p.ErrorDataReceived += commandStdErrorReceived;
332	p.BeginOutputReadLine();
333	p.BeginErrorReadLine();
334	p.WaitForExit();
335	}
336	catch (Exception e)
337	{
338	Program.printAppError(Program.appErrors.PATCH_COMMAND_PROCESS_ERROR, "Error processing command in Patch file.\n" + e.ToString());
339	return false;
340	}
341
342	return true;
343	}
344
345	/// <summary>
346	/// Reads asynchronously output from the new process where the command will be executed
347	/// </summary>
348	/// <param name="sender"></param>
349	/// <param name="e"></param>
350	private void commandStdOutputReceived(object sender, DataReceivedEventArgs e)
351	{
352
353	string myData = e.Data;
354
355	if (myData != null)
356	{
357	if (myData.EndsWith("\n"))
358	{
359	Console.Write(myData);
360	}
361	else
362	{
363	Console.WriteLine(myData);
364	}
365	}
366
367	}
368
369	private void commandStdErrorReceived(object sender, DataReceivedEventArgs e)
370	{
371
372	string myData = e.Data;
373
374	if (myData != null)
375	{
376	if (myData.EndsWith("\n"))
377	{
378	Console.Error.Write(myData);
379	}
380	else
381	{
382	Console.Error.WriteLine(myData);
383	}
384	}
385
386	}
387
388	private string getPatchParameter(string line, string parameterName)
389	{
390	string result = "";
391	int startIdx = 0, endIdx = 0;
392
393	string temp = parameterName + " \"";
394
395	startIdx = line.IndexOf(temp);
396	if (startIdx != -1) //we have Parameter specified
397	{
398	startIdx += temp.Length;
399	endIdx = line.IndexOf("\"", startIdx);
400	result = line.Substring(startIdx, endIdx - startIdx); //Get the parameter value
401	}
402
403	return result;
404	}
405	}
406	}