public void BlogModelScenario()
{
TTransport transport = new TSocket("localhost", 9160);
TProtocol protocol = new TBinaryProtocol(transport);
var client = new Cassandra.Client(protocol);
Console.WriteLine("Opening Connection");
transport.Open();
string entryTitle = "now with bonus batch writes";
string entryAuthor = "josh";
string entryBody = "This is my blog entry yet again";
string entryPostDate = DateTime.Now.ToShortDateString();
var cfmap = new Dictionary<string, List<ColumnOrSuperColumn>>();
//Column families are case sensitive
//"BlogEntries"
cfmap.Add("Standard1", new List<ColumnOrSuperColumn>
{
new ColumnOrSuperColumn(new Column("title", entryTitle)),
new ColumnOrSuperColumn(new Column("body", entryBody)),
new ColumnOrSuperColumn(new Column("author", entryAuthor)),
new ColumnOrSuperColumn(new Column("postDate", entryPostDate)),
});
client.batch_insert("Keyspace1", entryTitle, cfmap, ConsistencyLevel.ONE);
//Now Read it back.
var predicate = new SlicePredicate(new SliceRange(false, 10));
var parent = new ColumnParent("Standard1"); //"BlogEntries");
var results = client.get_slice("Keyspace1", entryTitle, parent, predicate, ConsistencyLevel.ONE);
foreach (ColumnOrSuperColumn resultColumn in results)
{
Column column = resultColumn.Column;
Console.WriteLine("Name: {0}, value: {1}",
column.Name.UTFDecode(),
column.Value.UTFDecode());
}
Console.WriteLine("closing connection");
transport.Close();
}
public void SimpleScenario()
{
TTransport transport = new TSocket("localhost", 9160);
TProtocol protocol = new TBinaryProtocol(transport);
var client = new Cassandra.Client(protocol);
Console.WriteLine("Opening Connection");
transport.Open();
//At this point we're using the standard configuration file
var nameColumnPath = new ColumnPath("Standard1", null, "name");
Console.WriteLine("Inserting a column");
client.insert("Keyspace1",
"1",
nameColumnPath,
"Josh Blogs".UTF(),
Util.UnixTimestamp,
ConsistencyLevel.ONE
);
client.insert("Keyspace1",
"2",
nameColumnPath,
"Something else".UTF(),
Util.UnixTimestamp,
ConsistencyLevel.ONE);
//Let's get something back out (this is our select statement)
ColumnOrSuperColumn returnedColumn = client.get(
"Keyspace1", //The database
"1", //The actual key we want
nameColumnPath, //Where that key sits
ConsistencyLevel.ONE //HAZY
);
Console.WriteLine("We got Name: {0}, value {1}",
returnedColumn.Column.Name.UTFDecode(),
returnedColumn.Column.Value.UTFDecode());
Console.WriteLine("Now let's try getting a range");
//This is telling us the offest to get. This is where paging would occur.
var predicate = new SlicePredicate(new SliceRange(false, 10));
var parent = new ColumnParent("Standard1");
var keyedResults =
client.multiget_slice("Keyspace1",
new List<string> { "1", "2" },
parent,
predicate,
ConsistencyLevel.ONE);
foreach (var keyedResult in keyedResults)
{
Console.WriteLine("Key: {0}", keyedResult.Key);
foreach (ColumnOrSuperColumn result in keyedResult.Value)
{
Column column = result.Column;
Console.WriteLine("Name: {0}, value: {1}",
column.Name.UTFDecode(),
column.Value.UTFDecode());
}
}
Console.WriteLine("closing connection");
transport.Close();
}