/// <summary>
/// Loads the catalog details from configuration file.
/// </summary>
/// <remarks>
/// The catalog details are loaded in the collection.
/// Duplicate or invalid catalog are ignored.
/// Invalid catalog includes catalogs with profiles information
/// not present in profiles collection.
/// </remarks>
/// <param name="param1">the catalog configuration file</param>
/// <param name="param2">the profiles collection</param>
public void loadCatalogfromConfig(string filename, CswProfiles profileList)
{
try {
XmlDocument doc = new XmlDocument();
doc.Load(filename);
XmlNodeList xmlnodes = doc.GetElementsByTagName("CSWCatalog");
foreach (XmlNode xmlnode in xmlnodes)
{
String url = XmlDatatoString(xmlnode.SelectSingleNode("URL").InnerText);
String name = XmlDatatoString(xmlnode.SelectSingleNode("Name").InnerText);
String profileID = xmlnode.SelectSingleNode("CSWProfile").InnerText;
if (profileList.ContainsKey(profileID))
{
CswProfile profile = (CswProfile)profileList[profileID];
CswCatalog catalog = new CswCatalog(url, name, profile);
this.AddCatalog(catalog.ID, catalog);
}
}
}
catch (Exception ex) {
throw ex;
}
}
/// <summary>
/// Add a key value pair to profile collection.
/// </summary>
/// <remarks>
/// Add to profile collection.
/// </remarks>
/// <param name="param1">The key which is the url hashcode for the profile</param>
/// <param name="param2">The profile object</param>
public void AddProfile(object key, CswProfile profile)
{
base.Add(key, profile);
}
public void SetServiceProps(DcList references)
{
// determine the service url, name and type
LinkedList <String> schemeVals = references.get(DcList.getScheme(DcList.Scheme.SERVER));
if (schemeVals.Count > 0)
{
mapServerURL = chkStr(schemeVals.First.Value);
}
if (mapServerURL == null)
{
mapServerURL = String.Empty;
}
;
schemeVals = references.get(DcList.getScheme(DcList.Scheme.SERVICE));
if (schemeVals.Count > 0)
{
serviceName = chkStr(schemeVals.First.Value);
}
schemeVals = references.get(DcList.getScheme(DcList.Scheme.SERVICE_TYPE));
if (schemeVals.Count > 0)
{
this.Protocol = (schemeVals.First.Value);
}
if ((mapServerURL.Length > 0) && (this.Protocol == null))
{
this.Protocol = CswProfile.DeduceProtocolFromURL(mapServerURL);
}
// handle the case where an ArcIMS service has been specified with
// server/service/this.Protocol parameters
if ((mapServerURL.Length > 0) &&
(this.Protocol.Equals("image", StringComparison.CurrentCultureIgnoreCase) ||
this.Protocol.Equals("feature") ||
this.Protocol.Equals("metadata")))
{
if ((serviceName.Length > 0))
{
String esrimap = "servlet/com.esri.esrimap.Esrimap";
if (mapServerURL.IndexOf("esrimap") == -1)
{
if (mapServerURL.IndexOf("?") == -1)
{
if (!mapServerURL.EndsWith("/"))
{
mapServerURL += "/";
}
mapServerURL = mapServerURL + esrimap + "?ServiceName=" + serviceName;
}
}
else
{
if (mapServerURL.IndexOf("?") == -1)
{
mapServerURL = mapServerURL + "?ServiceName=" + serviceName;
}
else if (mapServerURL.IndexOf("ServiceName=") == -1)
{
mapServerURL = mapServerURL + "&ServiceName=" + serviceName;
}
}
}
if (this.Protocol.Equals("image"))
{
this.Protocol = "aims";
}
}
// if the resource url has not been directly specified through a "scheme" attribute,
// then attempt to pick the best fit for the collection of references
if (mapServerURL.Length == 0)
{
foreach (DcList.Value reference in references)
{
if (reference != null)
{
String url = reference.getValue();
String type = CswProfile.DeduceProtocolFromURL(url);
if (type.Length > 0)
{
mapServerURL = url;
this.Protocol = type;
break;
}
}
}
}
}
/// <summary>
/// Update the name of an exsisting Catalog.
/// </summary>
/// <remarks>
/// The catalog name is updated from the collection.
/// The catalog name is also updated from the configuration file.
/// </remarks>
/// <param name="catalog">CswCatalog</param>
/// <param name="name">The string display name</param>
/// <param name="url">The string url</param>
/// <param name="name">The profile</param>
public void updateCatalog(CswCatalog catalog, String displayname, String url, CswProfile profile)
{
if (!isUserCatalogExists())
{
createUserCatalogFile();
}
catalogList.updateCatalogNameinConfig(catalog, displayname, url, profile, USER_CATALOGFILE);
}
/// <summary>
/// Search CSW catalog using the provided criteria. Search result can be accessed by calling GetResponse().
/// </summary>
public void Search()
{
try
{
_response = new CswSearchResponse();
StringBuilder sb = new StringBuilder();
if (_criteria == null)
{
sb.AppendLine(DateTime.Now + " Criteria not specified.");
throw new NullReferenceException("Criteria not specified.");
}
if (_catalog == null)
{
sb.AppendLine(DateTime.Now + " Catalog not specified.");
throw new NullReferenceException("Catalog not specified.");
}
if (_catalog.URL == null || _catalog.URL.Length == 0)
{
sb.AppendLine(DateTime.Now + " Catalog URL not specified.");
throw new NullReferenceException("Catalog URL not specified.");
}
if (_catalog.Profile == null)
{
sb.AppendLine(DateTime.Now + " Catalog profile not specified.");
throw new NullReferenceException("Catalog profile not specified.");
}
CswProfile profile = _catalog.Profile;
// generate getRecords query
string requestUrl = _catalog.Capabilities.GetRecords_PostURL;
//Set Breakpoint to see transformed request (use xml viewer on tooltip variable)
string requestQuery = profile.GenerateCSWGetRecordsRequest(_criteria);
sb.AppendLine("Untransformed Request Query : " + profile.LastUntransformedGetRecordsRequest.InnerXml);
// requestQuery = "<csw:GetCapabilities xmlns:csw=\"http://www.opengis.net/cat/csw/2.0.2\" request=\"GetCapabilities\" service=\"CSW\" version=\"2.0.2\"/>";
requestQuery = requestQuery.Replace("utf-16", "utf-8");
requestQuery = requestQuery.Replace("UTF-16", "UTF-8");
// submit search query
if (_cswClient == null)
{
_cswClient = new CswClient();
}
string responseText;
sb.AppendLine(DateTime.Now + " Sending CSW GetRecords request to endpoint : " + requestUrl);
sb.AppendLine("Request Query : " + requestQuery);
if (!_catalog.Capabilities.GetRecords_IsSoapEndPoint)
{
responseText = _cswClient.SubmitHttpRequest("POST", requestUrl, requestQuery);
}
else
{
responseText = _cswClient.SubmitHttpRequest("SOAP", requestUrl, requestQuery);
}
// parse out csw search records
CswRecords records = new CswRecords();
sb.AppendLine(DateTime.Now + " Response received : " + responseText);
profile.ReadCSWGetRecordsResponse(responseText, records);
sb.AppendLine(DateTime.Now + " Parsed GetRecords response.");
// populate CSW response
_response.ResponseXML = responseText;
_response.Records = records;
writeLogMessage(sb.ToString());
}
catch (Exception e)
{
writeLogMessage(DateTime.Now + " " + e.ToString());
}
}
// Get Add to map information
public void GetAddToMapInfoByID(string DocID)
{
_response = new CswSearchResponse();
StringBuilder sb = new StringBuilder();
if (DocID == null || DocID == "")
{
throw new ArgumentNullException();
}
if (_catalog == null)
{
throw new NullReferenceException("Catalog not specified.");
}
if (_catalog.Capabilities == null)
{
throw new NullReferenceException("Catalog capabilities not initialized.");
}
if (_catalog.Profile == null)
{
throw new NullReferenceException("Catalog profile not specified.");
}
if (_catalog.Capabilities.GetRecordByID_GetURL == null || _catalog.Capabilities.GetRecordByID_GetURL.Length == 0)
{
sb.AppendLine(DateTime.Now + " GetRecordByID URL not specified for the catalog capabilities.");
throw new NullReferenceException("GetRecordByID URL not specified for the catalog capabilities.");
}
CswProfile profile = _catalog.Profile;
// generate request url
string getRecordByIDBaseUrl = _catalog.Capabilities.GetRecordByID_GetURL;
string requestUrl = profile.GenerateCSWGetMetadataByIDRequestURL(getRecordByIDBaseUrl, DocID);
sb.AppendLine(DateTime.Now + " GetRecordsById request URL : " + requestUrl);
if (_cswClient == null)
{
_cswClient = new CswClient();
}
string responseText = _cswClient.SubmitHttpRequest("GET", requestUrl, "");
_response.ResponseXML = responseText;
sb.AppendLine(DateTime.Now + " GetRecordsById response xml : " + responseText);
CswRecord record = new CswRecord(DocID);
profile.ReadCSWGetMetadataByIDResponse(responseText, record);
if (record.MetadataResourceURL != null && record.MetadataResourceURL.Equals("") && profile.Name.Equals("terra catalog CSW 2.0.2 AP ISO"))
{
record.FullMetadata = responseText;
}
if (record == null)
{
throw new NullReferenceException("Record not populated.");
}
// check if full metadata or resourceURL has been returned
bool hasFullMetadata = !(record.FullMetadata == null || record.FullMetadata == "");
bool hasResourceUrl = !(record.MetadataResourceURL == null || record.MetadataResourceURL == "");
if (!hasFullMetadata && !hasResourceUrl)
{
// throw new InvalidOperationException("Neither full metadata nor metadata resource URL was found for the CSW record.");
}
else if (!hasFullMetadata && record.MetadataResourceURL != null)
{
// need to load metadata from resource URL
responseText = _cswClient.SubmitHttpRequest("GET", record.MetadataResourceURL, "", "", "");
record.FullMetadata = responseText;
}
// add record to the response
CswRecords records = new CswRecords();
if (record != null)
{
records.Add(record.ID, record);
}
_response.Records = records;
_mapServerUrl = record.MapServerURL;
if (_mapServerUrl != null)
{
sb.AppendLine(DateTime.Now + " Map Server Url : " + _mapServerUrl);
}
writeLogMessage(sb.ToString());
}
/// <summary>
/// Retrieve metadata from CSW service by its ID
/// </summary>
/// <param name="DocID">Metadata document ID</param>
public bool GetMetadataByID(string DocID, bool bApplyTransform)
{
_response = new CswSearchResponse();
StringBuilder sb = new StringBuilder();
if (DocID == null || DocID == "")
{
throw new ArgumentNullException();
}
if (_catalog == null)
{
throw new NullReferenceException("Catalog not specified.");
}
if (_catalog.Capabilities == null)
{
throw new NullReferenceException("Catalog capabilities not initialized.");
}
if (_catalog.Profile == null)
{
throw new NullReferenceException("Catalog profile not specified.");
}
if (_catalog.Capabilities.GetRecordByID_GetURL == null || _catalog.Capabilities.GetRecordByID_GetURL.Length == 0)
{
throw new NullReferenceException("GetRecordByID URL not specified for the catalog capabilities.");
}
CswProfile profile = _catalog.Profile;
// generate request url
string getRecordByIDBaseUrl = _catalog.Capabilities.GetRecordByID_GetURL;
string requestUrl = profile.GenerateCSWGetMetadataByIDRequestURL(getRecordByIDBaseUrl, DocID);
sb.AppendLine(DateTime.Now + " GetRecordsById request URL : " + requestUrl);
if (_cswClient == null)
{
_cswClient = new CswClient();
}
string responseText = _cswClient.SubmitHttpRequest("GET", requestUrl, "");
_response.ResponseXML = responseText;
sb.AppendLine(DateTime.Now + " GetRecordsById response xml : " + responseText);
CswRecord record = new CswRecord(DocID);
bool isTransformed = false;
if (bApplyTransform)
{
isTransformed = profile.TransformCSWGetMetadataByIDResponse(responseText, record);
if (isTransformed)
{
sb.AppendLine(DateTime.Now + " Transformed xml : " + record.FullMetadata);
}
}
else
{
record.FullMetadata = responseText;
}
/*if (!isTransformed)
* {
* XmlDocument responseXml = new XmlDocument();
* try { responseXml.LoadXml(responseText); }
* catch (XmlException xmlEx)
* {
* throw new XmlException("Error occurred \r\n" + xmlEx.Message);
* }
* record.FullMetadata = responseXml.FirstChild.InnerText ;
* }*/
// add record to the response
CswRecords records = new CswRecords();
if (record != null)
{
records.Add(record.ID, record);
}
_response.Records = records;
_mapServerUrl = record.MapServerURL;
if (_mapServerUrl != null)
{
sb.AppendLine(DateTime.Now + " Map Server Url : " + _mapServerUrl);
}
writeLogMessage(sb.ToString());
return(isTransformed);
}
/// <summary>
/// Update the name of an exsisting Catalog.
/// The name is also updated in the configuration file.
/// </summary>
/// <remarks>
/// The catalog name is updated from the collection.
/// The catalog name is also updated from the configuration file.
/// </remarks>
/// <param name="param1">CswCatalog</param>
/// <param name="param2">The string name</param>
/// <param name="param2">The string updated url</param>
/// <param name="param2">The string name</param>
/// <param name="param3">the catalog configuration file</param>
public void updateCatalogNameinConfig(CswCatalog catalog, string displayname, string surl,CswProfile profile,string filename) {
try {
CswCatalog updatedcatalog = (CswCatalog)this[catalog.ID.ToString()];
updatedcatalog.Name = displayname;
updatedcatalog.URL =surl;
updatedcatalog.Profile = profile;
updatetoFile(filename);
}
catch (Exception ex) {
throw ex;
}
}
public CswCatalog(String surl, String sname, CswProfile oprofile) {
id = "catalog" + IDCounter.ToString();
IDCounter++;
URL = surl;
Profile = oprofile;
Name = sname;
Locking = false;
}
/// <summary>
/// Add a key value pair to profile collection.
/// </summary>
/// <remarks>
/// Add to profile collection.
/// </remarks>
/// <param name="param1">The key which is the url hashcode for the profile</param>
/// <param name="param2">The profile object</param>
public void AddProfile(object key, CswProfile profile) {
base.Add(key,profile);
}
/// <summary>
/// Update the name of an exsisting Catalog.
/// The name is also updated in the configuration file.
/// </summary>
/// <remarks>
/// The catalog name is updated from the collection.
/// The catalog name is also updated from the configuration file.
/// </remarks>
/// <param name="param1">CswCatalog</param>
/// <param name="param2">The string name</param>
/// <param name="param2">The string updated url</param>
/// <param name="param2">The string name</param>
/// <param name="param3">the catalog configuration file</param>
public void updateCatalogNameinConfig(CswCatalog catalog, string displayname, string surl, CswProfile profile, string filename)
{
try {
CswCatalog updatedcatalog = (CswCatalog)this[catalog.ID.ToString()];
updatedcatalog.Name = displayname;
updatedcatalog.URL = surl;
updatedcatalog.Profile = profile;
updatetoFile(filename);
}
catch (Exception ex) {
throw ex;
}
}