Merged in DSC-712 (pull request DSpace#25)

Create a find method to return bitstrems belonging to a bundle filtered by dc.type

Approved-by: Giuseppe Digilio

bitstreams.md

@@ -149,6 +149,22 @@ Return codes:
 * 403 Forbidden - if you are not logged in with sufficient permissions to see the bitstream metadata
 * 422 Unprocessable Entity - if the provided uuid cannot be resolved to an item regardless to the item status
 
+### byItemId
+**/api/core/bitstreams/search/byItemId?uuid=<:uuid>&name=<:bundle_name>&filterMetadata=<:filterMetadata>&filterMetadataValue=<:filterMetadataValue>**
+
+It returns the bitstream matching the given parameters.
+
+The supported parameters are:
+* `uuid`: mandatory, uuid of the item
+* `name`: mandatory, name of the bundle
+* `filterMetadata`: metadata fields to filter by (repeatable)
+* `filterMetadataValue`: values of the metadata to filter by (repeatable)
+
+Return codes:
+* 200 OK - if the operation succeed. This will contain the bitstreams
+* 400 Bad Request - if the cardinality of the `filterMetadata` and `filterMetadataValue` parameters is not the same
+* 422 Unprocessable Entity - if the provided uuid cannot be resolved to an item 
+
 ## DELETE Method
 Delete a bitstream. Works for normal bitstreams in an Item (bundle), and a community or collection logo