/// <summary>
/// In this current version of our example, we don't know what our user data looks like - we just know we have a string
/// representation of Xml. Let's take that data and save it in the database, so we can perform analysis on it later.
/// </summary>
/// <param name="itemData">The string we pulled from the Users file.</param>
/// <param name="category">The item category, used for sorting/querying later.</param>
public void InsertItem(string itemData, string category)
{
// set up to retry 20 times
while (true)
{
if (disposing)
{
return;
}
using (var tx = Manager.CreateTransaction(TransactionType.SnapshotTransaction))
{
try
{
var doc = Manager.CreateDocument();
doc.SetContent(itemData);
doc.SetMetadata(META_URI, "category", new XmlValue(category));
doc.Name = category;
using (var uc = Manager.CreateUpdateContext()) { BeerDb.PutDocument(tx, doc, uc, PutDocumentOptions.GenerateFileName); }
//using (var uc = Manager.CreateUpdateContext()) { BeerDb.PutDocument(doc, uc,PutDocumentOptions.GenerateFileName); }
tx.Commit();
doc.Dispose();
break;
}
catch (Exception ex)
{
tx.Abort();
Console.WriteLine("{0} {1}: write error: {2}", DateTime.Now, ex.GetType(), ex.Message);
//give the reader a chance to retry before resuming writes
Thread.Sleep(300);
}
}
}
}
/// <summary>
/// Inserts an XML record pulled from a URL.
/// </summary>
/// <param name="url">The URL to extract XML from.</param>
/// <returns>The name of the record.</returns>
public string InsertRecordFromUrl(string url)
{
var name = "record" + DateTime.Now.ToFileTimeUtc();
var stm = Manager.CreateUrlInputStream(string.Empty, url);
var doc = Manager.CreateDocument();
doc.SetContentAsInputStream(stm);
doc.Name = name;
//add metadata to the record.
doc.SetMetadata("http://schemas.bdbxml.net/metadata", "CreatedDate",
new XmlValue(DateTime.Now.ToString()));
using (var uc = Manager.CreateUpdateContext()) { BeerDb.PutDocument(doc, uc); }
return(name);
}
/// <summary>
/// Insert a System.Xml.XmlDocument into the database.
/// </summary>
/// <param name="doc">The document to insert.</param>
/// <returns>The document name, for lookup purposes.</returns>
public string InsertRecord(System.Xml.XmlDocument doc)
{
if (disposing)
{
return(string.Empty);
}
var name = "record" + DateTime.Now.ToFileTimeUtc();
var xml = Manager.CreateDocument(doc);
xml.Name = name;
//add metadata to the record.
xml.SetMetadata("http://schemas.bdbxml.net/metadata", "CreatedDate",
new XmlValue(DateTime.Now.ToString()));
using (var uc = Manager.CreateUpdateContext()) { BeerDb.PutDocument(xml, uc); }
return(name);
}
