public async Task<IEnumerable<Message>> Get(string q, int from, int size)
{
var url = ConfigurationManager.AppSettings["ES_URL"];
var setting = new ConnectionSettings(new Uri(url));
var client = new ElasticClient(setting);
// Parse the search query
string[] terms = q.Split(' ');
var personTerm = terms.SingleOrDefault(x => x.StartsWith("person:"));
if (!string.IsNullOrEmpty(personTerm))
{
terms = terms.Except(new string[] { personTerm }).ToArray();
personTerm = personTerm.Replace("person:", string.Empty);
}
var textTerms = string.Join(" ", terms);
var searchResults = await client.SearchAsync<Message>(s => s
.AllIndices()
.AllTypes()
.Size(size)
.From(from)
.SortAscending(f => f.Date)
.Query(qry =>
(qry.Term("from", personTerm) ||
qry.Term("to", personTerm)) &&
qry.Match(m => m
.OnField(f => f.Text)
.Query(textTerms)
.Operator(Operator.And))));
return searchResults.Documents;
}
public void SearchUsingSingleClient(string indexName, int port, int numberOfSearches)
{
var settings = this.CreateSettings(indexName, port);
var client = new ElasticClient(settings);
var tasks = new List<Task>();
for (var p = 0; p < numberOfSearches; p++)
{
var t = client.SearchAsync<Message>(s => s.MatchAll())
.ContinueWith(ta =>
{
if (!ta.Result.IsValid)
throw new ApplicationException(ta.Result.ConnectionStatus.ToString());
});
tasks.Add(t);
}
Task.WaitAll(tasks.ToArray());
}
public async Task <IReadOnlyCollection <T> > FetchQuotes <T>(string Symbol, DateTime Start, DateTime End) where T : class, IDataRow, new()
{
List <T> documents = new List <T>();
var search = await _client.SearchAsync <T>(s => s
.AllTypes()
.From(0)
.Size(10000)
.Query(q => q
.Match(m => m
.Field(new Field("baseSymbol"))
.Query(Symbol)
) && q
.DateRange(r => r
.Field(f => f.date)
.GreaterThanOrEquals(Start)
.LessThanOrEquals(End)
)
)
.Scroll(100)
);
//first page
string scrollId = search.ScrollId;
documents.AddRange(search.Documents);
ISearchResponse <T> results;
do
{
//page until we get all the results
results = await _client.ScrollAsync <T>(100, scrollId);
scrollId = results.ScrollId;
documents.AddRange(results.Documents);
} while (results.Documents.Count == 10000);
this.Log("Retrieved {0} document objects.", documents.Count);
return(documents);
}
/**
* An example of using `OnRequestCompleted()` for complex logging. Remember, if you would also like
* to capture the request and/or response bytes, you also need to set `.DisableDirectStreaming()`
* to `true`
*/
[U]public async Task UsingOnRequestCompletedForLogging()
{
var list = new List<string>();
var connectionPool = new SingleNodeConnectionPool(new Uri("http://localhost:9200"));
var settings = new ConnectionSettings(connectionPool, new InMemoryConnection())
.DisableDirectStreaming()
.OnRequestCompleted(response =>
{
// log out the request
if (response.RequestBodyInBytes != null)
{
list.Add(
$"{response.HttpMethod} {response.Uri} \n" +
$"{Encoding.UTF8.GetString(response.RequestBodyInBytes)}");
}
else
{
list.Add($"{response.HttpMethod} {response.Uri}");
}
// log out the response
if (response.ResponseBodyInBytes != null)
{
list.Add($"Status: {response.HttpStatusCode}\n" +
$"{Encoding.UTF8.GetString(response.ResponseBodyInBytes)}\n" +
$"{new string('-', 30)}\n");
}
else
{
list.Add($"Status: {response.HttpStatusCode}\n" +
$"{new string('-', 30)}\n");
}
});
var client = new ElasticClient(settings);
var syncResponse = client.Search<object>(s => s
.Scroll("2m")
.Sort(ss => ss
.Ascending(SortSpecialField.DocumentIndexOrder)
)
);
list.Count.Should().Be(2);
var asyncResponse = await client.SearchAsync<object>(s => s
.Scroll("2m")
.Sort(ss => ss
.Ascending(SortSpecialField.DocumentIndexOrder)
)
);
list.Count.Should().Be(4);
list.ShouldAllBeEquivalentTo(new []
{
"POST http://localhost:9200/_search?scroll=2m \n{\"sort\":[{\"_doc\":{\"order\":\"asc\"}}]}",
"Status: 200\n------------------------------\n",
"POST http://localhost:9200/_search?scroll=2m \n{\"sort\":[{\"_doc\":{\"order\":\"asc\"}}]}",
"Status: 200\n------------------------------\n"
});
}
