private void Context_InitComplete(object sender, EventArgs e)
{
IVulcanHandler handler = ServiceLocator.Current.GetInstance <IVulcanHandler>();
// Clear static list so property mapping can be re-created.
handler.DeletedIndices += ((IEnumerable <string> deletedIndices) =>
{
VulcanAttachmentPropertyMapper.AddedMappings.Clear();
});
if (_AttachmentSettings.Service.EnableAttachmentPlugins)
{
//todo: future 5.x support uses https://www.elastic.co/guide/en/elasticsearch/plugins/5.2/ingest-attachment.html
// not which 2.x uses https://www.elastic.co/guide/en/elasticsearch/plugins/5.2/mapper-attachments.html
IVulcanClient client = handler.GetClient(CultureInfo.InvariantCulture);
var info = client.NodesInfo();
if (info?.Nodes?.Any(x => x.Value?.Plugins?.Any(y => string.Compare(y.Name, "mapper-attachments", true) == 0) == true) != true)
{
if (CurrentHostType != HostType.WebApplication ||
(CurrentHostType == HostType.WebApplication && HttpContext.Current?.IsDebuggingEnabled == true))
{
// Only throw exception if not a web application or is a web application with debug turned on
throw new Exception("No attachment plugin found, be sure to install the 'mapper-attachments' plugin on your Elastic Search Server!");
}
}
}
}
void IVulcanPipelineInstaller.Install(IVulcanClient client)
{
if (!_vulcanAttachmentIndexerSettings.EnableAttachmentPlugins || !client.Language.Equals(CultureInfo.InvariantCulture))
{
return;
}
var info = client.NodesInfo();
if (info?.Nodes?.Any(x => x.Value?.Plugins?.Any(y => string.Compare(y.Name, PluginName, StringComparison.OrdinalIgnoreCase) == 0) == true) != true)
{
throw new Exception($"No attachment plugin found, be sure to install the '{PluginName}' plugin on your Elastic Search Server!");
}
#if NEST2
// v2, to do, get all MediaData types that are allowed and loop them
var mediaDataTypes = Core.Extensions.TypeExtensions.GetSearchTypesFor <MediaData>(t => t.IsAbstract == false);
foreach (var mediaType in mediaDataTypes)
{
var descriptors = mediaType.GetCustomAttributes(false).OfType <MediaDescriptorAttribute>();
var extensionStrings = string.Join(",", descriptors.Select(x => x.ExtensionString ?? ""));
var extensions = extensionStrings.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
var manualCheck = MapAttachment?.Invoke(mediaType) ?? false;
// only map ones we allow
if (!extensions.Intersect(_vulcanAttachmentIndexerSettings.SupportedFileExtensions).Any() && !manualCheck)
{
continue;
}
var response = client.Map <object>(m => m.
Index(client.IndexName). // was _all
Type(mediaType.FullName).
Properties(props => props.
Attachment(s => s.Name(MediaContents)
.FileField(ff => ff.Name("content").Store().TermVector(Nest.TermVectorOption.WithPositionsOffsets))
))
);
if (!response.IsValid)
{
throw new Exception(response.DebugInformation);
}
}
#elif NEST5
// v5, use pipeline
var response = client.PutPipeline(PipelineId, p => p
.Description("Document attachment pipeline")
.Processors(pr => pr
.Attachment <Nest.Attachment>(a => a
.Field(MediaContents)
.TargetField(MediaContents)
.IndexedCharacters(-1)
)
)
);
if (!response.IsValid)
{
throw new Exception(response.DebugInformation);
}
#endif
}
