private static MapReduceIndex CreateIndexInstance(IndexDefinition definition)
{
var staticIndex = IndexCompilationCache.GetIndexInstance(definition);
var staticMapIndexDefinition = new MapReduceIndexDefinition(definition, staticIndex.Maps.Keys.ToHashSet(), staticIndex.OutputFields,
staticIndex.GroupByFields, staticIndex.HasDynamicFields);
var instance = new MapReduceIndex(staticMapIndexDefinition, staticIndex);
return(instance);
}
public async Task PostIndexFields()
{
using (ContextPool.AllocateOperationContext(out DocumentsOperationContext context))
{
using (var json = await context.ReadForMemoryAsync(RequestBodyStream(), "map"))
{
if (json.TryGet("Map", out string map) == false)
{
throw new ArgumentException("'Map' field is mandatory, but wasn't specified");
}
json.TryGet(nameof(IndexDefinition.AdditionalSources), out BlittableJsonReaderObject additionalSourcesJson);
json.TryGet(nameof(IndexDefinition.AdditionalAssemblies), out BlittableJsonReaderArray additionalAssembliesArray);
var indexDefinition = new IndexDefinition
{
Name = "index-fields",
Maps =
{
map
},
AdditionalSources = ConvertToAdditionalSources(additionalSourcesJson),
AdditionalAssemblies = ConvertToAdditionalAssemblies(additionalAssembliesArray)
};
try
{
var compiledIndex = IndexCompilationCache.GetIndexInstance(indexDefinition, Database.Configuration, IndexDefinitionBaseServerSide.IndexVersion.CurrentVersion);
var outputFields = compiledIndex.OutputFields;
await using (var writer = new AsyncBlittableJsonTextWriter(context, ResponseBodyStream()))
{
writer.WriteStartObject();
writer.WriteArray(context, "Results", outputFields, (w, c, field) => w.WriteString(field));
writer.WriteEndObject();
}
}
catch (IndexCompilationException)
{
// swallow compilation exception and return empty array as response
await using (var writer = new AsyncBlittableJsonTextWriter(context, ResponseBodyStream()))
{
writer.WriteStartArray();
writer.WriteEndArray();
}
}
}
}
}
public async Task <Index> CreateIndex(IndexDefinition definition)
{
if (definition == null)
{
throw new ArgumentNullException(nameof(definition));
}
ValidateIndexName(definition.Name, isStatic: true);
definition.RemoveDefaultValues();
ValidateAnalyzers(definition);
var instance = IndexCompilationCache.GetIndexInstance(definition); // pre-compile it and validate
await _indexLocker.WaitAsync(_documentDatabase.DatabaseShutdown);
try
{
lock (_locker)
{
if (definition.Type == IndexType.MapReduce)
{
MapReduceIndex.ValidateReduceResultsCollectionName(definition, instance, _documentDatabase);
}
}
var command = new PutIndexCommand(definition, _documentDatabase.Name);
try
{
var(etag, _) = await _serverStore.SendToLeaderAsync(command);
await _documentDatabase.RachisLogIndexNotifications.WaitForIndexNotification(etag);
return(GetIndex(definition.Name));
}
catch (CommandExecutionException e)
{
throw e.InnerException;
}
}
finally
{
_indexLocker.Release();
}
}
private static MapReduceIndexDefinition CreateIndexDefinition(IndexDefinition definition, RavenConfiguration configuration, long indexVersion, out AbstractStaticIndexBase staticIndex)
{
staticIndex = IndexCompilationCache.GetIndexInstance(definition, configuration);
return(new MapReduceIndexDefinition(definition, staticIndex.Maps.Keys, staticIndex.OutputFields, staticIndex.GroupByFields, staticIndex.HasDynamicFields, staticIndex.CollectionsWithCompareExchangeReferences.Count > 0, indexVersion));
}
