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Adding support to validate against XSD and SCH files
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| using Saxon.Api; | ||
| using System; | ||
| using System.IO; | ||
| using System.Reflection; | ||
| using System.Text; | ||
| using System.Xml; | ||
| using System.Xml.Schema; | ||
|
|
||
| namespace LantanaGroup.XmlDocumentConverter | ||
| { | ||
| public class Validator | ||
| { | ||
| private string schemaPath; | ||
| private string schematronPath; | ||
| private Processor processor = new Processor(); | ||
| private XmlReaderSettings readerSettings; | ||
| private DocumentBuilder builder; | ||
| private string phase1; | ||
|
|
||
| public bool WillValidate | ||
| { | ||
| get | ||
| { | ||
| return !string.IsNullOrEmpty(this.schemaPath) || !string.IsNullOrEmpty(this.schematronPath); | ||
| } | ||
| } | ||
|
|
||
| public bool WillValidateSchema | ||
| { | ||
| get | ||
| { | ||
| return !string.IsNullOrEmpty(this.schemaPath); | ||
| } | ||
| } | ||
|
|
||
| public bool WillValidateSchematron | ||
| { | ||
| get | ||
| { | ||
| return !string.IsNullOrEmpty(this.schematronPath); | ||
| } | ||
| } | ||
|
|
||
| public Validator(string schemaPath, string schematronPath) | ||
| { | ||
| this.schemaPath = schemaPath; | ||
| this.schematronPath = schematronPath; | ||
|
|
||
| this.processor.XmlResolver = new ValidatorResolver(new FileInfo(schematronPath).DirectoryName); | ||
| this.builder = this.processor.NewDocumentBuilder(); | ||
| this.builder.BaseUri = new Uri("file://"); | ||
|
|
||
| if (!String.IsNullOrEmpty(this.schemaPath)) | ||
| { | ||
| XmlDocument xsdDoc = new XmlDocument(); | ||
| xsdDoc.Load(this.schemaPath); | ||
|
|
||
| if (xsdDoc.DocumentElement != null && xsdDoc.DocumentElement.Attributes != null && xsdDoc.DocumentElement.Attributes.GetNamedItem("targetNamespace") != null) | ||
| { | ||
| XmlAttribute targetNamespace = (XmlAttribute) xsdDoc.DocumentElement.Attributes.GetNamedItem("targetNamespace"); | ||
|
|
||
| this.readerSettings = new XmlReaderSettings(); | ||
| this.readerSettings.Schemas.Add(targetNamespace.Value, this.schemaPath); | ||
| this.readerSettings.ValidationType = ValidationType.Schema; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public bool ValidateSchema(string filePath) | ||
| { | ||
| bool isValid = true; | ||
|
|
||
| // Validate XSD | ||
| if (this.readerSettings != null) | ||
| { | ||
| this.readerSettings.ValidationEventHandler += delegate (object sender, ValidationEventArgs e) | ||
| { | ||
| if (e.Severity == XmlSeverityType.Error) isValid = false; | ||
| }; | ||
| XmlReader books = XmlReader.Create(filePath, this.readerSettings); | ||
|
|
||
| while (books.Read()) { } | ||
| } | ||
|
|
||
| return isValid; | ||
| } | ||
|
|
||
| private string Transform(string stylesheetContent, string xmlPath, bool addErrorsPhase = false) | ||
| { | ||
| FileInfo xmlInfo = new FileInfo(xmlPath); | ||
| XdmNode stylesheet = this.builder.Build(new StreamReader(new MemoryStream(Encoding.UTF8.GetBytes(stylesheetContent)))); | ||
|
|
||
| XsltCompiler compiler = this.processor.NewXsltCompiler(); | ||
| XsltExecutable exec = compiler.Compile(stylesheet); | ||
|
|
||
| XsltTransformer transformer = exec.Load(); | ||
| DomDestination dest = new DomDestination(); | ||
|
|
||
| using (var inputStream = xmlInfo.OpenRead()) | ||
| { | ||
| if (addErrorsPhase) | ||
| transformer.SetParameter(new QName("phase"), XdmValue.MakeValue("errors")); | ||
|
|
||
| transformer.SetInputStream(inputStream, new Uri(xmlInfo.DirectoryName)); | ||
| transformer.Run(dest); | ||
| } | ||
|
|
||
| using (StringWriter sw = new StringWriter()) | ||
| { | ||
| if (dest.XmlDocument == null) | ||
| throw new Exception("Failed to execute Schematron validation. The SCH file selected may not be the ISO version of Schematron."); | ||
|
|
||
| dest.XmlDocument.Save(sw); | ||
| return sw.ToString(); | ||
| } | ||
| } | ||
|
|
||
| public bool ValidateSchematron(string filePath) | ||
| { | ||
| if (string.IsNullOrEmpty(this.schematronPath)) return true; | ||
|
|
||
| if (string.IsNullOrEmpty(this.phase1)) | ||
| { | ||
| string schSkeletonContent; | ||
|
|
||
| using (Stream schSkeletonStream = Assembly.GetExecutingAssembly().GetManifestResourceStream("LantanaGroup.XmlDocumentConverter.iso-sch-conformance1-5.xsl")) | ||
| { | ||
| using (StreamReader schSkeletonReader = new StreamReader(schSkeletonStream)) | ||
| { | ||
| schSkeletonContent = schSkeletonReader.ReadToEnd(); | ||
| } | ||
| } | ||
|
|
||
| this.phase1 = this.Transform(schSkeletonContent, this.schematronPath, true); | ||
| } | ||
|
|
||
| string phase2 = this.Transform(this.phase1, filePath); | ||
|
|
||
| XdmNode phase2Results = this.builder.Build(new StreamReader(new MemoryStream(Encoding.UTF8.GetBytes(phase2)))); | ||
|
|
||
| XPathCompiler xpathCompiler = this.processor.NewXPathCompiler(); | ||
| XPathExecutable xpathExec = xpathCompiler.Compile("//failed-assert"); | ||
| XPathSelector xpathSelector = xpathExec.Load(); | ||
| xpathSelector.ContextItem = phase2Results; | ||
| var xpathResults = xpathSelector.Evaluate(); | ||
|
|
||
| return xpathResults.Count == 0; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| using Saxon.Api; | ||
| using System; | ||
| using System.IO; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Text; | ||
| using System.Threading.Tasks; | ||
| using System.Xml; | ||
|
|
||
| namespace LantanaGroup.XmlDocumentConverter | ||
| { | ||
| public class ValidatorResolver : XmlResolver | ||
| { | ||
| private readonly string rootPath; | ||
|
|
||
| public ValidatorResolver(string rootPath) | ||
| { | ||
| this.rootPath = rootPath; | ||
| } | ||
|
|
||
| public override object GetEntity(Uri absoluteUri, string role, Type ofObjectToReturn) | ||
| { | ||
| Uri baseUri = new Uri("file://" + this.rootPath); | ||
|
|
||
| if (absoluteUri.ToString().EndsWith("skeleton1-5.xsl")) | ||
| { | ||
| return System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream("LantanaGroup.XmlDocumentConverter.iso-sch-skeleton1-5.xsl"); | ||
| } | ||
| else if (absoluteUri.ToString().StartsWith("file:///")) | ||
| { | ||
| string filePath = absoluteUri.ToString().Substring(8); | ||
| string actualPath = System.IO.Path.Combine(this.rootPath, filePath); | ||
|
|
||
| if (new FileInfo(actualPath).Exists) | ||
| return new System.IO.FileStream(actualPath, FileMode.Open); | ||
| } | ||
|
|
||
| throw new NotImplementedException(); | ||
| } | ||
| } | ||
| } |
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