public XPathServiceOperationNavigator ( HttpContext httpContext, Context context, Transform.Context transformContext, XPathNavigator navigator, TransformRequest request, TransformResponse response, XsltTransformationManager transformationManager ) { m_navigator = navigator; m_httpContext = httpContext; m_context = context; m_transformContext = transformContext; m_request = request; m_response = response; m_xslTransformationManager = transformationManager; m_transform = transformationManager.Transform; m_encoding = new UTF8Encoding(); }
public XmlServiceOperationReader(HttpContext httpContext, Context context, Transform.Context transformContext, XmlReader reader, TransformRequest request, TransformResponse response, XsltTransformationManager transformationManager) { m_reader = reader; m_httpContext = httpContext; m_context = context; m_transformContext = transformContext; m_request = request; m_response = response; m_xslTransformationManager = transformationManager; m_transform = transformationManager.Transform; m_encoding = new UTF8Encoding(); }
public IAsyncResult BeginProcessRequest ( HttpContext context, AsyncCallback cb, object extraData ) { m_stopwatch.Start(); FileInfo fileInfo = new FileInfo(context.Request.MapPath(context.Request.CurrentExecutionFilePath)); this.LogDebug("File Date: {0}; File Length: {1}", fileInfo.LastWriteTimeUtc, fileInfo.Length); m_CONTENT_IS_MEMCACHED = false; m_USE_MEMCACHED = false; m_httpContext = context; m_returnOutput = true; m_httpMethod = m_httpContext.Request.HttpMethod; m_memcachedClient = (Client)context.Application["memcached"]; m_encoding = (UTF8Encoding)context.Application["encoding"]; m_queueClient = (QueueClient)context.Application["queueclient"]; m_hashkey = (string)context.Application["hashkey"]; m_xmlServiceOperationManager = (XPathServiceOperationManager)context.Application["xmlServiceOperationManager"]; m_xslTransformationManager = (XsltTransformationManager)context.Application["xslTransformationManager"]; m_transform = m_xslTransformationManager.Transform; m_xsltParams = (Hashtable)context.Application["globalXsltParams"]; m_transformContext = new Transform.Context(context, m_hashAlgorithm, (string)context.Application["hashkey"], fileInfo, (Hashtable)m_xsltParams.Clone(), fileInfo.LastWriteTimeUtc, fileInfo.Length); m_namedXsltHashtable = (Hashtable)context.Application["namedXsltHashtable"]; m_xmlSourceETagDictionary = m_xmlServiceOperationManager.XmlSourceETagDictionary; m_xmlReaderDictionary = m_xmlServiceOperationManager.XmlReaderDictionary; m_context = new Context(context, m_hashAlgorithm, m_hashkey, fileInfo, fileInfo.LastWriteTimeUtc, fileInfo.Length); this.LogDebug("File Date: {0}; File Length: {1}", m_context.RequestXmlFileInfo.LastWriteTimeUtc, m_context.RequestXmlFileInfo.Length); m_nuxleusAsyncResult = new Nuxleus.Core.NuxleusAsyncResult(cb, extraData); m_callback = cb; m_nuxleusAsyncResult.m_context = context; m_builder = new StringBuilder(); m_CONTENT_IS_MEMCACHED = false; m_USE_MEMCACHED = (bool)context.Application["usememcached"]; Uri requestUri = new Uri(m_context.RequestUri); m_requestHashcode = m_context.GetRequestHashcode(true).ToString(); m_lastModifiedKey = String.Format("LastModified:{0}", m_context.RequestUri.GetHashCode()); m_lastModifiedDate = String.Empty; m_request = new TransformRequest(); m_response = new TransformResponse(); Guid requestGuid = Guid.NewGuid(); m_request.ID = requestGuid; context.Response.ContentType = "text/xml"; IEnumerator headers = context.Request.Headers.GetEnumerator(); for (int i = 0; headers.MoveNext(); i++) { string local = context.Request.Headers.AllKeys[i].ToString(); this.LogDebug("KeyName: {0}, KeyValue: {1}", local, context.Request.Headers[local]); } bool hasXmlSourceChanged = m_xmlServiceOperationManager.HasXmlSourceChanged(m_context.RequestXmlETag, requestUri); //if (m_USE_MEMCACHED) { // string obj = (string)m_memcachedClient.Get(m_context.GetRequestHashcode(true).ToString()); // if (obj != null && !hasXmlSourceChanged) { // m_response.TransformResult = (string)obj; // m_CONTENT_IS_MEMCACHED = true; // if ((bool)context.Application["debug"]) { // context.Response.ContentType = "text"; // } // } else { // //m_writer = new StringWriter(m_builder); // m_CONTENT_IS_MEMCACHED = false; // } //} else { // m_writer = new StringWriter(m_builder); //} m_writer = new StringWriter(m_builder); try { switch (m_httpMethod) { case "GET": case "HEAD": case "POST": { string name = String.Format("Name: {0}", context.Request.QueryString["name"]); this.LogDebug("QueryString Length: {0}", context.Request.QueryString.Count); this.LogDebug(name); this.LogDebug("If-None-Match: {0}, RequestHashCode: {1}", context.Request.Headers["If-None-Match"], m_requestHashcode); this.LogDebug(context.Request.Path); if (context.Request.Headers["If-None-Match"] == m_requestHashcode) { object lastModified; this.LogDebug("They matched."); this.LogDebug("Use memcached: {0}, KeyExists: {1}, XmlSource Changed: {2}", m_USE_MEMCACHED, m_memcachedClient.TryGet(m_lastModifiedKey, out lastModified), hasXmlSourceChanged); this.LogDebug("Last Modified Key Value: {0}", m_lastModifiedKey); if (m_USE_MEMCACHED && m_memcachedClient.TryGet(m_lastModifiedKey, out lastModified) && !hasXmlSourceChanged) { m_lastModifiedDate = (string)m_memcachedClient.Get(m_lastModifiedKey); this.LogDebug("Last Modified Date: {0}", m_lastModifiedDate); if (context.Request.Headers["If-Modified-Since"] == m_lastModifiedDate) { context.Response.StatusCode = 304; m_returnOutput = false; goto CompleteCall; } else { goto Process; } } else if (m_CONTENT_IS_MEMCACHED) { goto CompleteCall; } else { goto Process; } } else { this.LogDebug("Headers do not match. Beginning transformation process..."); m_returnOutput = true; goto Process; } } case "PUT": { goto CompleteCall; } case "DELETE": { goto CompleteCall; } default: { goto CompleteCall; } } } catch (Exception ex) { m_exception = ex; WriteError(); goto CompleteCall; } Process: try { this.LogDebug("Processing Transformation"); this.LogDebug("Request XML ETag Value: {0}, Request URI: {1}", m_context.RequestXmlETag, requestUri); XPathNavigator navigator = m_xmlServiceOperationManager.GetXPathNavigator(m_context.RequestXmlETag, requestUri); //if (initialReader == null) { // initialReader = reader; //} else { // this.LogDebug("XmlReaders are the same object: {0}", initialReader.Equals(reader)); //} //this.LogDebug("XML Reader Value: {0}", reader.ReadOuterXml()); //this.LogDebug("XML Reader Hash: {0}", reader.GetHashCode()); XPathServiceOperationNavigator serviceOperationReader = new XPathServiceOperationNavigator(context, m_context, m_transformContext, navigator, m_request, m_response, m_xslTransformationManager); m_response = serviceOperationReader.Process(); } catch (Exception e) { this.LogDebug("Error: {0} in transformation.", e.Message); m_exception = e; WriteError(); } goto CompleteCall; CompleteCall: this.LogDebug("CompleteCall reached"); if (m_lastModifiedDate == String.Empty) { m_lastModifiedDate = DateTime.UtcNow.ToString("r"); } context.Response.AppendHeader("Cache-Control", "max-age=86400"); context.Response.AddHeader("Last-Modified", m_lastModifiedDate); context.Response.AddHeader("ETag", String.Format("\"{0}\"", m_requestHashcode)); m_nuxleusAsyncResult.CompleteCall(); return m_nuxleusAsyncResult; }
public NuxleusTransformAsyncResult (AsyncCallback cb, TransformResponse transformResponse) { this.m_cb = cb; m_transformResponse = transformResponse; m_isCompleted = false; }
public TransformResponse Process () { XmlReader reader = m_navigator.ReadSubtree(); string xmlStylesheetHref = String.Empty; bool processWithEmbeddedPIStylsheet = false; do { switch (reader.NodeType) { case XmlNodeType.ProcessingInstruction: switch (reader.Name) { case "xml-stylesheet": string piValue = reader.Value; if (piValue.Contains("type=\"text/xsl\"") && piValue.Contains("href=")) { processWithEmbeddedPIStylsheet = true; xmlStylesheetHref = piValue.SubstringAfter("href=\"").SubstringBefore("\""); } Console.WriteLine("Stylesheet Href = {0}", xmlStylesheetHref); break; default: break; } break; case XmlNodeType.Element: if (reader.IsStartElement()) { switch (reader.Name) { case "service:compile": if (reader.HasAttributes) { bool USEMEMCACHE = false; bool SUCCESS = bool.TryParse(reader.GetAttribute("cache-result"), out USEMEMCACHE); Console.WriteLine(String.Format("Operation succeeded: {0}, Use memcached: {1}", SUCCESS, USEMEMCACHE)); } break; case "service:session": Console.WriteLine("service:session reached"); break; case "service:operation": case "my:page": Console.WriteLine("service:operation or my:page reached"); Uri baseXsltUri = new Uri(m_httpContext.Request.MapPath(xmlStylesheetHref)); m_xslTransformationManager.BaseXsltUri = baseXsltUri; string baseXslt = baseXsltUri.GetHashCode().ToString(); if (!m_xslTransformationManager.NamedXsltHashtable.ContainsKey(baseXslt)) { m_xslTransformationManager.AddTransformer(baseXslt, baseXsltUri); m_xslTransformationManager.NamedXsltHashtable.Add(baseXslt, baseXsltUri); } if (!m_xslTransformationManager.XmlSourceHashtable.ContainsKey(m_context.RequestXmlETag)) { Console.WriteLine(reader.ReadOuterXml()); using (MemoryStream stream = new MemoryStream(m_encoding.GetBytes(reader.ReadOuterXml().ToCharArray()))) { m_xslTransformationManager.AddXmlSource(m_context.RequestXmlETag.ToString(), (Stream)stream); } } TransformContext transformContext = new TransformContext(); transformContext.Context = m_transformContext; transformContext.HttpContext = m_httpContext; transformContext.XsltTransformationManager = m_xslTransformationManager; transformContext.XsltName = baseXslt; transformContext.Response = m_response; m_request.TransformContext = transformContext; m_response = m_transform.BeginTransformProcess(m_request); break; default: break; } } break; case XmlNodeType.EndElement: continue; case XmlNodeType.Text: case XmlNodeType.SignificantWhitespace: case XmlNodeType.Whitespace: break; case XmlNodeType.CDATA: break; case XmlNodeType.Comment: break; case XmlNodeType.DocumentType: break; case XmlNodeType.EntityReference: reader.ResolveEntity(); continue; case XmlNodeType.XmlDeclaration: case XmlNodeType.EndEntity: continue; default: break; //throw new InvalidOperationException(); } } while (reader.Read()); return m_response; }