public static XmlDocument Run(string[] processes, string Language)
{
StringBuilder retString = new StringBuilder();
retString.Append(Global.XmlHeader + "<wps:ProcessDescriptions " + Global.WPSServiceVersion + " xml:lang='" + Language + "' " + Global.WPSXmlSchemas + " " + Global.WPSDescribeProcessSchema + ">");
// On identifier is ALL, catch all the available processes
if (processes.Length == 1 && Utils.StrICmp(processes[0], "ALL"))
{
ProcessDescription[] processDescriptions = GetCapabilities.getAvailableProcesses();
foreach (ProcessDescription process in processDescriptions)
{
retString.Append(process.GetProcessDescriptionDocument());
}
}
else
{
ExceptionReport exception = null;
// Loop through all the processes and get process description
foreach (string processId in processes)
{
try
{
retString.Append(ProcessDescription.GetProcessDescription(processId).GetProcessDescriptionDocument());
}
catch (ExceptionReport e)
{
exception = new ExceptionReport(e, exception);
}
}
if (exception != null)
{
throw exception;
}
}
retString.Append("</wps:ProcessDescriptions>");
try
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(retString.ToString());
HttpContext.Current.Response.StatusCode = 200;
return(doc);
}
catch (XmlException ex)
{
throw new ExceptionReport("Unable to generate the description document. Contact the administrator." + ex.ToString());
}
}
public XmlDocument RunFromHTTPGet()
{
string request = Utils.GetParameter("request");
string service = Utils.GetParameter("service");
string version = Utils.GetParameter("version");
string language = Utils.GetParameter("language", Global.DefaultLanguage);
ExceptionReport exception = null;
if (service != "WPS")
{
exception = new ExceptionReport(exception, "The service requested must be a WPS service.",
ExceptionCode.InvalidParameterValue, "service");
}
if (!Global.SupportedLanguages.Contains(language))
{
exception = new ExceptionReport(exception, "The language '" + language + "' is not supported by this WPS service. " +
"Use one of the followings: " + string.Join(", ", Global.SupportedLanguages.ToArray()),
ExceptionCode.InvalidParameterValue, "language");
}
if (string.IsNullOrEmpty(request))
{
exception = new ExceptionReport(exception, ExceptionCode.MissingParameterValue, "request");
}
if (exception != null)
{
throw exception;
}
// Execute an operation depending of the Request
// version attribute is not present in a GetCApabilities request
if (Utils.StrICmp(request, "GetCapabilities"))
{
return(GetCapabilities.RunFromHTTPGet(language));
}
// TODO handle many versions is possible. Do it ?
if (string.IsNullOrEmpty(version))
{
throw new ExceptionReport(ExceptionCode.MissingParameterValue, "version");
}
if (version != Global.WPSVersion)
{
throw new ExceptionReport("The requested version '" + version + "' is not supported by this WPS server.",
ExceptionCode.VersionNegotiationFailed, "version");
}
if (Utils.StrICmp(request, "DescribeProcess"))
{
return(DescribeProcess.RunFromHTTPGet(language));
}
if (Utils.StrICmp(request, "Execute"))
{
return(Execute.RunFromHTTPGet(language));
}
throw new ExceptionReport("The requested operation '" + request + "' is unknown.",
ExceptionCode.InvalidParameterValue, "request");
}
public XmlDocument RunFromHTTPPost()
{
XmlDocument doc = new XmlDocument();
try
{
StreamReader MyStreamReader = new StreamReader(this.Context.Request.InputStream);
doc.LoadXml(MyStreamReader.ReadToEnd());
MyStreamReader.Close();
}
catch (Exception e)
{
throw new ExceptionReport("Error when reading posted data. The xml syntax seems incorrect:\n" + e.Message);
}
XmlNamespaceManager nsmgr = Utils.CreateWPSNamespaceManager(doc);
XmlNode requestNode = doc.DocumentElement;
string service = Utils.GetXmlAttributesValue(requestNode, "service");
string version = Utils.GetXmlAttributesValue(requestNode, "version");
string language = Utils.GetXmlAttributesValue(requestNode, "language", Global.DefaultLanguage);
ExceptionReport exception = null;
if (service != "WPS")
{
exception = new ExceptionReport("The service requested must be a WPS service.",
ExceptionCode.InvalidParameterValue, "service");
}
if (!Global.SupportedLanguages.Contains(language))
{
exception = new ExceptionReport(exception, "The language '" + language + "' is not supported by this WPS service. " +
"Use one of the followings: " + string.Join(", ", Global.SupportedLanguages.ToArray()),
ExceptionCode.InvalidParameterValue, "language");
}
if (string.IsNullOrEmpty(requestNode.Name))
{
exception = new ExceptionReport(exception, ExceptionCode.MissingParameterValue, "request");
}
if (exception != null)
{
throw exception;
}
if (doc.SelectSingleNode("/wps:GetCapabilities", nsmgr) == requestNode)
{
return(GetCapabilities.RunFromHTTPPost(requestNode, language));
}
if (string.IsNullOrEmpty(version))
{
throw new ExceptionReport(ExceptionCode.MissingParameterValue, "version");
}
else if (version != Global.WPSVersion)
{
throw new ExceptionReport("The requested version '" + version + "' is not supported by this WPS server.",
ExceptionCode.VersionNegotiationFailed, "version");
}
else if (doc.SelectSingleNode("/wps:DescribeProcess", nsmgr) == requestNode)
{
return(DescribeProcess.RunFromHTTPPost(requestNode, language));
}
else if (doc.SelectSingleNode("/wps:Execute", nsmgr) == requestNode)
{
return(Execute.RunFromHTTPPost(requestNode, language));
}
throw new ExceptionReport("The requested operation '" + requestNode.Name + "' is unknown.",
ExceptionCode.InvalidParameterValue, "request");
}
