/// <summary> Gets the OAI-PMH m,etadata for a single digital resource, by identifier </summary>
/// <param name="Output"> Stream to which to write the text for this main writer </param>
/// <param name="Identifier"> Identifier for the record to retrieve the metadata for </param>
/// <param name="MetadataPrefix"> Prefix for the metadata format to return the record </param>
protected internal void GetRecord(TextWriter Output, string Identifier, string MetadataPrefix)
{
// Perform check that the identifier is valid
bool valid = true;
// Metadata prefix must be in the list of acceptable metadata prefixes
if (!metadataPrefixes.Contains(MetadataPrefix))
{
Write_Error(Output, "identifier=\"" + Identifier + "\" metadataPrefix=\"" + MetadataPrefix + "\" verb=\"GetRecord\"", "cannotDisseminateFormat", "Item " + Identifier + " does not have metadata for " + MetadataPrefix);
return;
}
// Ensure the identifier is in basic correct form
OAI_Record thisTitle = null;
if (Identifier.IndexOf(oai_resource_identifier_base) != 0)
{
valid = false;
}
else
{
// Get the bib id and vid
string bibid_vid = Identifier.Substring(oai_resource_identifier_base.Length);
if (bibid_vid.Length != 16)
{
valid = false;
}
else
{
// Pull the information for this item
string bibid = bibid_vid.Substring(0, 10);
string vid = bibid_vid.Substring(11);
thisTitle = SobekCM_Database.Get_OAI_Record(bibid, vid, MetadataPrefix);
}
}
// Throw error if invalid
if ((!valid) || (thisTitle == null))
{
Write_Error(Output, "identifier=\"" + Identifier + "\" metadataPrefix=\"" + MetadataPrefix + "\" verb=\"GetRecord\"", "idDoesNotExist", "identifier is not valid URI: " + Identifier);
return;
}
// Display the information
Output.WriteLine("<?xml version=\"1.0\" encoding=\"UTF-8\" ?> ");
Output.WriteLine("<?xml-stylesheet type=\"text/xsl\" href=\"oai2.xsl\" ?>");
Output.WriteLine("<OAI-PMH xmlns=\"http://www.openarchives.org/OAI/2.0/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd\">");
Output.WriteLine("<responseDate>" + date_in_utc(DateTime.Now) + "</responseDate>");
Output.WriteLine("<request identifier=\"" + Identifier + "\" metadataPrefix=\"" + MetadataPrefix + "\" verb=\"GetRecord\">" + url + "</request>");
Output.WriteLine("<GetRecord>");
Output.Write("<record><header><identifier>" + oai_resource_identifier_base + thisTitle.BibID + "_" + thisTitle.VID + "</identifier><datestamp>" + thisTitle.Last_Modified_Date.Year + "-" + thisTitle.Last_Modified_Date.Month.ToString().PadLeft(2, '0') + "-" + thisTitle.Last_Modified_Date.Day.ToString().PadLeft(2, '0') + "</datestamp></header>");
Output.WriteLine("<metadata>" + thisTitle.Record + "</metadata></record>");
Output.WriteLine("</GetRecord>");
Output.WriteLine("</OAI-PMH>");
}
/// <summary> Gets the OAI-PMH m,etadata for a single digital resource, by identifier </summary>
/// <param name="Output"> Stream to which to write the text for this main writer </param>
/// <param name="identifier"> Identifier for the record to retrieve the metadata for </param>
/// <param name="metadata_prefix"> Prefix for the metadata format to return the record </param>
protected internal void GetRecord(TextWriter Output, string identifier, string metadata_prefix)
{
// Perform check that the identifier is valid
bool valid = true;
string record = String.Empty;
// Metadata prefix must currently be oai_dc currently
if (metadata_prefix != "oai_dc")
{
Write_Error(Output, "identifier=\"" + identifier + "\" metadataPrefix=\"" + metadata_prefix + "\" verb=\"GetRecord\"", "cannotDisseminateFormat", "Item " + identifier + " does not have metadata for " + metadata_prefix);
return;
}
// Ensure the identifier is in basic correct form
OAI_Record thisTitle = null;
if (identifier.IndexOf(SobekCM_Library_Settings.OAI_Resource_Identifier_Base) != 0)
{
valid = false;
}
else
{
// Get the bib id and vid
string bibid = identifier.Substring(SobekCM_Library_Settings.OAI_Resource_Identifier_Base.Length);
if (bibid.Length != 10)
{
valid = false;
}
else
{
// Pull the information for this item
thisTitle = SobekCM_Database.Get_OAI_Record(bibid, metadata_prefix);
}
}
// Throw error if invalid
if ((!valid) || (thisTitle == null))
{
Write_Error(Output, "identifier=\"" + identifier + "\" metadataPrefix=\"" + metadata_prefix + "\" verb=\"GetRecord\"", "idDoesNotExist", "identifier is not valid URI: " + identifier);
return;
}
// Display the information
Output.WriteLine("<?xml version=\"1.0\" encoding=\"UTF-8\" ?> ");
Output.WriteLine("<?xml-stylesheet type=\"text/xsl\" href=\"oai2.xsl\" ?>");
Output.WriteLine("<OAI-PMH xmlns=\"http://www.openarchives.org/OAI/2.0/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd\">");
Output.WriteLine("<responseDate>" + date_in_utc(DateTime.Now) + "</responseDate>");
Output.WriteLine("<request identifier=\"" + identifier + "\" metadataPrefix=\"" + metadata_prefix + "\" verb=\"GetRecord\">" + url + "</request>");
Output.WriteLine("<GetRecord>");
Output.Write("<record><header><identifier>" + SobekCM_Library_Settings.OAI_Resource_Identifier_Base + thisTitle.BibID + "</identifier><datestamp>" + thisTitle.Last_Modified_Date.Year + "-" + thisTitle.Last_Modified_Date.Month.ToString().PadLeft(2, '0') + "-" + thisTitle.Last_Modified_Date.Day.ToString().PadLeft(2, '0') + "</datestamp></header>");
Output.WriteLine("<metadata><oai_dc:dc xmlns:oai_dc=\"http://www.openarchives.org/OAI/2.0/oai_dc/\" xmlns:dc=\"http://purl.org/dc/elements/1.1/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd\">" + thisTitle.Record + "</oai_dc:dc></metadata></record>");
Output.WriteLine("</GetRecord>");
Output.WriteLine("</OAI-PMH>");
}
