/** Exposes the PRONOM web service. This is the only method required to call a
* web service. The URL of the web service must be provided. The web server
* name or IP address is then extracted from the URL.
* @param theWebServiceURL Full URL to webservice
* @param theMethodName Name of the web service method. The suffix "request"
* is appended for the SOAP request and the suffix "response" is appended for the
* SOAP response.
* @param theXMLWrapper Name of XML Element which wraps the result inside the web service response
*/
public static String sendRequest(string theWebServiceURL, string theProxyHost, int theProxyPort, string theMethodName, string theXMLWrapper) //throws Exception{
{
//assume that the communication fails. If it succeeds, the flag will be reset at the end
isCommSuccess = false;
String theResult = "";
//set up the URL
//URL myUrl = null;
Uri myUrl = null;
try {
myUrl = new Uri(theWebServiceURL); //URL(theWebServiceURL);
}
catch (Exception e) //MalformedURLException e)
{
throw new //WSException("Invalid URL for PRONOM web services" + theWebServiceURL +"\n"+e.getMessage());
AlexandriaException("Invalid URL for PRONOM web services" + theWebServiceURL + "\n" + e.Message);
}
try {
// Create and send a message
System.Web.Services.Description.Message aMessage = new System.Web.Services.Description.Message();
//If a proxy server is required for connecting to web service, then record its settings
try {
if(theProxyHost.Length > 0 && theProxyPort > 0)
{
//TODO: figure out how to port this
/*
org.apache.soap.transport.http.SOAPHTTPConnection aSOAPConnection = new org.apache.soap.transport.http.SOAPHTTPConnection();
aSOAPConnection.setProxyHost(theProxyHost);
aSOAPConnection.setProxyPort(theProxyPort);
aMessage.setSOAPTransport(aSOAPConnection);
*/
}
}
catch (Exception e)
{
throw new //WSException("Error while creating the proxy settings" +"\n"+e.getMessage());
AlexandriaException("Error while creating the proxy settings" + "\n" + e.Message);
}
//send the SOAP message to webservice
//TODO: figure out how to port this
/*
aMessage.send(myUrl, theWebServiceURL, createEnvelope(theMethodName));
//Receive the message response
org.apache.soap.transport.SOAPTransport st = aMessage.getSOAPTransport();
BufferedReader br = st.receive( );
String line = br.readLine( );
if(line == null) {
} else {
while (line != null) {
theResult += line;
line = br.readLine( );
}
}
*/
}
catch (Exception e)
{
throw new //WSException("Error while sending message to PRONOM web services" +"\n"+e.getMessage());
AlexandriaException("Error while sending message to PRONOM web services" +"\n"+e.Message);
}
// theResult now contains the complete result from the
// webservice in XML format.
try
{
theResult = PronomWebService.extractXMLelement(theResult, theMethodName + "Response");
}
catch(Exception)
{
throw new AlexandriaException("Unexpected response from PRONOM web service");
}
try
{
theResult = PronomWebService.extractXMLelement(theResult, theXMLWrapper);
}
catch(Exception)
{
throw new AlexandriaException("Response from PRONOM web service did not contain the expected element");
}
//indicate that the communication was successful
isCommSuccess = true;
return theResult;
}
/** Exposes the PRONOM web service. This is the only method required to call a
* web service. The URL of the web service must be provided. The web server
* name or IP address is then extracted from the URL.
* @param theWebServiceURL Full URL to webservice
* @param theMethodName Name of the web service method. The suffix "request"
* is appended for the SOAP request and the suffix "response" is appended for the
* SOAP response.
* @param theXMLWrapper Name of XML Element which wraps the result inside the web service response
*/
public static String sendRequest(string theWebServiceURL, string theProxyHost, int theProxyPort, string theMethodName, string theXMLWrapper) //throws Exception{
{
//assume that the communication fails. If it succeeds, the flag will be reset at the end
isCommSuccess = false;
String theResult = "";
//set up the URL
//URL myUrl = null;
Uri myUrl = null;
try {
myUrl = new Uri(theWebServiceURL); //URL(theWebServiceURL);
}
catch (Exception e) //MalformedURLException e)
{
throw new //WSException("Invalid URL for PRONOM web services" + theWebServiceURL +"\n"+e.getMessage());
AlexandriaException("Invalid URL for PRONOM web services" + theWebServiceURL + "\n" + e.Message);
}
try {
// Create and send a message
System.Web.Services.Description.Message aMessage = new System.Web.Services.Description.Message();
//If a proxy server is required for connecting to web service, then record its settings
try {
if (theProxyHost.Length > 0 && theProxyPort > 0)
{
//TODO: figure out how to port this
/*
* org.apache.soap.transport.http.SOAPHTTPConnection aSOAPConnection = new org.apache.soap.transport.http.SOAPHTTPConnection();
* aSOAPConnection.setProxyHost(theProxyHost);
* aSOAPConnection.setProxyPort(theProxyPort);
* aMessage.setSOAPTransport(aSOAPConnection);
*/
}
}
catch (Exception e)
{
throw new //WSException("Error while creating the proxy settings" +"\n"+e.getMessage());
AlexandriaException("Error while creating the proxy settings" + "\n" + e.Message);
}
//send the SOAP message to webservice
//TODO: figure out how to port this
/*
* aMessage.send(myUrl, theWebServiceURL, createEnvelope(theMethodName));
*
* //Receive the message response
* org.apache.soap.transport.SOAPTransport st = aMessage.getSOAPTransport();
* BufferedReader br = st.receive( );
* String line = br.readLine( );
* if(line == null) {
* } else {
* while (line != null) {
* theResult += line;
* line = br.readLine( );
* }
* }
*/
}
catch (Exception e)
{
throw new //WSException("Error while sending message to PRONOM web services" +"\n"+e.getMessage());
AlexandriaException("Error while sending message to PRONOM web services" + "\n" + e.Message);
}
// theResult now contains the complete result from the
// webservice in XML format.
try
{
theResult = PronomWebService.extractXMLelement(theResult, theMethodName + "Response");
}
catch (Exception)
{
throw new AlexandriaException("Unexpected response from PRONOM web service");
}
try
{
theResult = PronomWebService.extractXMLelement(theResult, theXMLWrapper);
}
catch (Exception)
{
throw new AlexandriaException("Response from PRONOM web service did not contain the expected element");
}
//indicate that the communication was successful
isCommSuccess = true;
return(theResult);
}
public System.Web.Services.Description.Message ReadObject_Message (bool isNullable, bool checkType)
{
System.Web.Services.Description.Message ob = null;
if (isNullable && ReadNull()) return null;
if (checkType)
{
System.Xml.XmlQualifiedName t = GetXsiType();
if (t != null)
{
if (t.Name != "Message" || t.Namespace != "http://schemas.xmlsoap.org/wsdl/")
throw CreateUnknownTypeException(t);
}
}
ob = new System.Web.Services.Description.Message ();
Reader.MoveToElement();
while (Reader.MoveToNextAttribute())
{
if (Reader.LocalName == "name" && Reader.NamespaceURI == "") {
ob.Name = XmlConvert.DecodeName(Reader.Value);
}
else if (IsXmlnsAttribute (Reader.Name)) {
}
else {
UnknownNode (ob);
}
}
Reader.MoveToElement();
if (Reader.IsEmptyElement) {
Reader.Skip ();
return ob;
}
Reader.ReadStartElement();
Reader.MoveToContent();
bool b26=false, b27=false;
System.Web.Services.Description.MessagePartCollection o29 = ob.Parts;
int n28=0;
while (Reader.NodeType != System.Xml.XmlNodeType.EndElement)
{
if (Reader.NodeType == System.Xml.XmlNodeType.Element)
{
if (Reader.LocalName == "documentation" && Reader.NamespaceURI == "http://schemas.xmlsoap.org/wsdl/" && !b27) {
b27 = true;
ob.Documentation = Reader.ReadElementString ();
}
else if (Reader.LocalName == "part" && Reader.NamespaceURI == "http://schemas.xmlsoap.org/wsdl/" && !b26) {
if (o29 == null)
throw CreateReadOnlyCollectionException ("System.Web.Services.Description.MessagePartCollection");
o29.Add (ReadObject_MessagePart (false, true));
n28++;
}
else {
UnknownNode (ob);
}
}
else
UnknownNode(ob);
Reader.MoveToContent();
}
ReadEndElement();
return ob;
}
internal void SetParent(System.Web.Services.Description.Message parent)
{
this.parent = parent;
}
internal void SetParent(System.Web.Services.Description.Message parent)
{
this.parent = parent;
}
