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// Copyright (c) Microsoft Corporation. All rights reserved.
//
using System;
using System.IO;
using System.Reflection;
using System.Xml;
using System.Xml.Xsl;
using Microsoft.Ddue.Tools.CommandLine;
namespace Microsoft.Ddue.Tools {
public class XslTransformer {
public static int Main(string[] args) {
// specify options
OptionCollection options = new OptionCollection();
options.Add(new SwitchOption("?", "Show this help page."));
options.Add(new ListOption("xsl", "Sepcify transform files.", "xsltPath"));
options.Add(new ListOption("arg", "Sepcify arguments.", "name=value"));
options.Add(new StringOption("out", "Specify an output file. If unspecified, output goes to the console.", "outputFilePath"));
ConsoleApplication.WriteBanner();
// process options
ParseArgumentsResult results = options.ParseArguments(args);
if (results.Options["?"].IsPresent) {
Console.WriteLine("XslTransformer xsl_file [xml_file] [options]");
options.WriteOptionSummary(Console.Out);
return (0);
}
// check for invalid options
if (!results.Success) {
results.WriteParseErrors(Console.Out);
return (1);
}
// check for missing or extra assembly directories
if (results.UnusedArguments.Count != 1) {
Console.WriteLine("Specify one input XML input file.");
return (1);
}
if (!results.Options["xsl"].IsPresent) {
Console.WriteLine("Specify at least one XSL transform file.");
return (1);
}
// Load transforms
string[] transformFiles = (string[])results.Options["xsl"].Value;
XslCompiledTransform[] transforms = new XslCompiledTransform[transformFiles.Length];
for (int i = 0; i < transformFiles.Length; i++) {
string transformFile = Environment.ExpandEnvironmentVariables(transformFiles[i]);
transforms[i] = new XslCompiledTransform();
XsltSettings transformSettings = new XsltSettings(true, true);
try {
transforms[i].Load(transformFile, transformSettings, new XmlUrlResolver());
} catch (IOException e) {
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("The transform file '{0}' could not be loaded. The error is: {1}", transformFile, e.Message));
return (1);
} catch (UnauthorizedAccessException e) {
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("The transform file '{0}' could not be loaded. The error is: {1}", transformFile, e.Message));
return (1);
} catch (XsltException e) {
if (e.InnerException != null) {
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("The transformation file '{0}' is not valid. The error is: {1}", transformFile, e.InnerException.Message));
} else {
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("The transformation file '{0}' is not valid. The error is: {1}", transformFile, e.Message));
}
return (1);
} catch (XmlException e) {
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("The transform file '{0}' is not well-formed. The error is: {1}", transformFile, e.Message));
return (1);
}
}
// Compose the arguments
XsltArgumentList arguments = new XsltArgumentList();
if (results.Options["arg"].IsPresent) {
string[] nameValueStrings = (string[])results.Options["arg"].Value;
foreach (string nameValueString in nameValueStrings) {
string[] nameValuePair = nameValueString.Split('=');
if (nameValuePair.Length != 2) continue;
arguments.AddParam(nameValuePair[0], String.Empty, nameValuePair[1]);
}
}
string input = Environment.ExpandEnvironmentVariables(results.UnusedArguments[0]);
// Do each transform
for (int i = 0; i < transforms.Length; i++) {
ConsoleApplication.WriteMessage(LogLevel.Info, String.Format("Applying XSL transformation '{0}'.", transformFiles[i]));
// get the transform
XslCompiledTransform transform = transforms[i];
// figure out where to put the output
string output;
if (i < (transforms.Length - 1)) {
try {
output = Path.GetTempFileName();
File.SetAttributes(output, FileAttributes.Temporary);
} catch (IOException e) {
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("An error occured while attempting to create a temporary file. The error message is: {0}", e.Message));
return (1);
}
} else {
if (results.Options["out"].IsPresent) {
output = Environment.ExpandEnvironmentVariables((string)results.Options["out"].Value);
} else {
output = null;
}
}
// Console.WriteLine("{0} -> {1}", input, output);
// create a reader
XmlReader reader;
try {
Stream readStream = File.Open(input, FileMode.Open, FileAccess.Read, FileShare.ReadWrite | FileShare.Delete);
reader = XmlReader.Create(readStream);
} catch (IOException e) {
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("The input file '{0}' could not be loaded. The error is: {1}", input, e.Message));
return (1);
} catch (UnauthorizedAccessException e) {
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("The input file '{0}' could not be loaded. The error is: {1}", input, e.Message));
return (1);
} catch (XmlException e) {
// this exception probably only occurs later; we now catch it during the transform
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("The input file '{0}' is not well-formed. The error is: {1}", input, e.Message));
return (1);
}
try {
// create a writer
XmlWriter writer;
try {
if (output == null) {
writer = XmlWriter.Create(Console.Out, transform.OutputSettings);
} else {
Stream writeStream = File.Open(output, FileMode.Create, FileAccess.Write, FileShare.Read | FileShare.Delete);
writer = XmlWriter.Create(writeStream, transform.OutputSettings);
}
} catch (IOException e) {
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("The output file '{0}' could not be loaded. The error is: {1}", output, e.Message));
return (1);
} catch (UnauthorizedAccessException e) {
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("The output file '{0}' could not be loaded. The error is: {1}", output, e.Message));
return (1);
} catch (XmlException e) {
// can this happen?
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("The output file '{0}' is not well-formed. The error is: {1}", output, e.Message));
return (1);
}
try {
// do the deed
transform.Transform(reader, arguments, writer);
} catch (XsltException e) {
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("An error occured during the transformation. The error message is: {0}",
(e.InnerException == null) ? e.Message : e.InnerException.Message));
return (1);
} catch (XmlException e) {
ConsoleApplication.WriteMessage(LogLevel.Error, String.Format("The input file '{0}' is not well-formed. The error is: {1}", input, e.Message));
return (1);
} finally {
writer.Flush();
writer.Close();
}
} finally {
reader.Close();
}
// if the last input was a temp file, delete it
if (i > 0) {
// Console.WriteLine("deleting {0}", input);
try {
File.Delete(input);
} catch (IOException e) {
ConsoleApplication.WriteMessage(LogLevel.Warn, String.Format("The temporary file '{0}' could not be deleted. The error message is: {1}", input, e.Message));
}
}
// the last output file is the next input file
input = output;
}
return (0);
}
}
internal class TransformInfo {
private static XmlUrlResolver resolver = new XmlUrlResolver();
private static XsltSettings settings = new XsltSettings(true, true);
private string file;
private XslCompiledTransform transform = new XslCompiledTransform();
public TransformInfo(string file) {
this.file = file;
transform.Load(file, settings, resolver);
}
public string File {
get {
return (file);
}
}
public XslCompiledTransform Transform {
get {
return (transform);
}
}
}
}
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