Commit Graph

16 Commits

Author SHA1 Message Date
Nadav Har'El
0e06d82a1f alternator: clean up api_error() interface
All operation-generated error messages should have the 400 HTTP error
code. It's a real nag to have to type it every time. So make it the
default.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 13:01:47 +03:00
Nadav Har'El
6fe6cf0074 alternator: correct error when trying to CreateTable an existing table
Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 13:00:54 +03:00
Nadav Har'El
871dd7b908 alternator: fix return object from PutItem
Without special options, PutItem should return nothing (an empty
JSON result). Previously we had trouble doing this, because instead
of return an empty JSON result, we converted an empty string into
JSON :-) So the existing code had an ugly workaround which worked,
sort of, for the Python driver but not for the Java driver.

The correct fix, in this patch, is to invent a new type json_string
which is a string *already* in JSON and doesn't need further conversion,
so we can use it to return the empty result. PutItem now works from
YCSB's Java driver.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 13:00:47 +03:00
Nadav Har'El
28e7fa20ed alternator: limit table names to 222 bytes
Although we would like to allow table names up to 222 bytes, this is not
currently possible because Scylla tacks additional 33 bytes to create
a directory name, and directory names are limited to 255 bytes.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 12:55:07 +03:00
Nadav Har'El
8af58b0801 alternator: better key type parsing
The supported key types are just S(tring), B(lob), or N(umber).
Other types are valid for attributes, but not for keys, and should
not be accepted. And wrong types used should result in the appropriate
user-visible error.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 12:54:12 +03:00
Nadav Har'El
9839183157 alternator: better invalid schema detection for CreateTable
To be correct, CreateTable's input parsing need to work in reverse from
what it did: First, the key columns are listed in KeySchema, and then
each of these (and potetially more, e.g., from indexes) need to appear
AttributeDefinitions.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 12:53:22 +03:00
Nadav Har'El
dc34c92899 alternator: better error handling for schema errors in CreateTable
Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 12:52:31 +03:00
Nadav Har'El
ca3553c880 alternator: PutItem: appropriate error for a non-existant table
Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 12:51:38 +03:00
Nadav Har'El
6ca72b5fed alternator: GetItem should by default returns all the columns, not none
The test

  pytest --local test_item.py::test_basic_string_put_and_get

Now passes.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 12:51:31 +03:00
Nadav Har'El
9920143fb7 alternator: change empty return of PutItem
Without any arguments, PutItem should return no data at all. But somehow,
for reasons I don't understand, the boto3 driver gets confused from an
empty JSON thinking it isn't JSON at all. If we return a structure with
an empty "attributes" fields, boto3 is happy.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 12:49:20 +03:00
Nadav Har'El
8dec31d23b alternator: add initial implementation of DeleteTable
Add an initial implementation of Delete table, enough for making the

   pytest --local test_table.py::test_create_and_delete_table

Pass.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 12:45:42 +03:00
Nadav Har'El
1b1921bc94 alternator: fix JSON in DescribeTable response
The structure's name in DescribeTable's output is supposed to be called
"Table", not "TableDescription". Putting in the wrong place caused the
driver's table creation waiters to fail.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 12:44:14 +03:00
Nadav Har'El
6a455035ba alternator: validate table name in CreateTable
validate table name in CreateTable, and if it doesn't fit DynamoDB's
requirement, return the appropriate error as drivers expect.

With this patch, test_table.py::test_create_table_unsupported_names
now passes (albeit with a one minute pause - this a bug with keep-alive
support...).

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 12:43:24 +03:00
Nadav Har'El
f66ec337f7 alternator: very initial implementation of DescribeTable
This initial implementation is enough to pass a test of getting a
failure for a non-existant table -
test_table.py::test_describe_table_non_existent_table
and to recognize an existing table. But it's still missing a lot
of fields for an existing table (among others, the schema).

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 12:41:32 +03:00
Nadav Har'El
9d72bc3167 alternator: table creation time is in seconds
The "Timestamp" type returned for CreationDateTime can be one of several
things but if it is a number, it is supposed to be the time in *seconds*
since the epoch - not in milliseconds. Returning milliseconds as we
wrongly did causes boto3 (AWS's Python driver) to throw a parse exception
on this response.

Signed-off-by: Nadav Har'El <nyh@scylladb.com>
2019-09-11 12:38:41 +03:00
Piotr Sarna
2ec78164bc alternator: add minimal HTTP interface
The interface works on port 8000 by default and provides
the most basic alternator operations - it's an incomplete
set without validation, meant to allow testing as early as possible.
2019-09-11 12:34:18 +03:00