The elasticsearch provider returns an empty
result when elasticsearch throws an error
(probably a bad request). This prevents the
aggregator from thinking that ES is loading
infinitely.
The aggregator now returns a result object similar
to that of the providers, but the hits array contains
domain objects rather than searchResult objects.
Also removed overly complicated filterRepeats
function from the aggregator and replaced it with a
simpler one.
The provider now returns an object that has
a hits property which contains what it
previously returned, and also a total property
which contains the total number of results.
Removed the name field from the ElasticSearch provider
search query string, so now it will check all of the
fields of the domain object (such as type).
Updated comments and documentation. Changed the generic
worker to return results as {id: score} key value pairs
rather than {id: {score: score}} format. Removed unused
getLatestResults and getLatestTimestamps functions from
the providers.
Removed the timestamp as an optional parameter
of the search aggregator's query(), and now it
instead automattically generates one before
querying the providers.
Also attempted to fix loading, but did not
complete (commented out).
The search service's interface now just consists
of the two functions query() and isLoading().
query() returns a promise for an array or results,
which eliminates the need for timeout polling like
was previously done. The search providers
have also been changed to reutrn promises.
Cleaning up code in generic serach provider. Removed
unnecissary return statements. Moved indexing via web
worker from getItems() loop to within itemsHelper().
Commented out timeout, becuase seems unnecissary.
Changed all date.getTime() to Date.now(). Indexing
has undefined checking.
Changed the generic search provider to index the
file tree only once when it is initially called.
This assumes that the contents of the file tree
will not change significantly within the course
of a use session (and some changes may be caught
by other search providers).
