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WIP exploring better migration #59

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6 changes: 5 additions & 1 deletion lib/triton/setup.ex
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Original file line number Diff line number Diff line change
@@ -1,4 +1,6 @@
defmodule Triton.Setup do
alias Triton.Setup.DbConnection

defmacro __before_compile__(_) do
module = __CALLER__.module
statements = Module.get_attribute(module, :setup_statements)
Expand All @@ -17,8 +19,10 @@ defmodule Triton.Setup do
node_config = Keyword.put(node_config, :nodes, node_config[:nodes])

{:ok, _apps} = Application.ensure_all_started(:xandra)
{:ok, conn} = Xandra.Cluster.start_link(node_config)
{:ok, cluster} = DbConnection.get_cluster(node_config)
IO.puts "SETUP!!!!!!!!!"
Xandra.Cluster.execute!(conn, "USE #{node_config[:keyspace]};", _params = [])
IO.puts "SETUP2!!!!!!!!!"
Xandra.Cluster.execute!(conn, statement, _params = [])
rescue
err -> IO.inspect(err)
Expand Down
40 changes: 40 additions & 0 deletions lib/triton/setup/db_connection.ex
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Original file line number Diff line number Diff line change
@@ -0,0 +1,40 @@
defmodule Triton.Setup.DbConnection do
def get_cluster(config) do
# nodes = Enum.shuffle(config[:nodes] || [])
nodes = config[:nodes] || []

node_config = Keyword.merge(config, [
name: __MODULE__,
nodes: nodes,
# backoff_type: :stop,
backoff_max: 5_000,
# connect_timeout: 2_000,
# refresh_topology_interval: 10_000,
queue_checkouts_before_connecting: [
max_size: 1000,
timeout: 50_000
]
])
|> Keyword.drop([:autodiscovery])

case Xandra.Cluster.start_link(node_config) do
{:ok, cluster} ->
IO.inspect(cluster, label: "new connection")
IO.inspect(nodes, label: "nodes")
test_connection(cluster)
|> IO.inspect(label: "test_connection")
{:ok, cluster}

{:error, {:already_started, cluster}} ->
IO.inspect(cluster, label: "already started")
{:ok, cluster}

{:error, _reason} = err ->
{:error, :connection_failed}
end
end

defp test_connection(cluster) do
Xandra.Cluster.execute!(cluster, "SELECT now() FROM system.local", _params = [])
end
end
7 changes: 5 additions & 2 deletions lib/triton/setup/keyspace.ex
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Original file line number Diff line number Diff line change
@@ -1,4 +1,6 @@
defmodule Triton.Setup.Keyspace do
alias Triton.Setup.DbConnection

def setup(schema_module) do
blueprint = schema_module.__struct__
try do
Expand All @@ -9,10 +11,11 @@ defmodule Triton.Setup.Keyspace do

node_config = Keyword.put(node_config, :nodes, node_config[:nodes])
{:ok, _apps} = Application.ensure_all_started(:xandra)
{:ok, conn} = Xandra.Cluster.start_link(node_config)
{:ok, cluster} = DbConnection.get_cluster(node_config)

statement = build_cql(schema_module)
Xandra.Cluster.execute!(conn, statement, _params = [])
IO.puts "KEYSPACE!!!!!!!!!"
Xandra.Cluster.execute!(cluster, statement, _params = [])
rescue
err -> IO.inspect(err)
end
Expand Down
9 changes: 6 additions & 3 deletions lib/triton/setup/materialized_view.ex
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Original file line number Diff line number Diff line change
@@ -1,4 +1,6 @@
defmodule Triton.Setup.MaterializedView do
alias Triton.Setup.DbConnection

def setup(schema_module) do
blueprint = Triton.Metadata.schema(schema_module).__struct__
try do
Expand Down Expand Up @@ -35,11 +37,12 @@ defmodule Triton.Setup.MaterializedView do

node_config = Keyword.put(node_config, :nodes, node_config[:nodes])
{:ok, _apps} = Application.ensure_all_started(:xandra)
{:ok, conn} = Xandra.Cluster.start_link(node_config)
{:ok, cluster} = DbConnection.get_cluster(node_config)

statement = build_cql(schema_module)
Xandra.Cluster.execute!(conn, "USE #{node_config[:keyspace]};", _params = [])
Xandra.Cluster.execute!(conn, statement, _params = [])
IO.puts "MATERIALIZED VIEW!!!!!!!!!"
Xandra.Cluster.execute!(cluster, "USE #{node_config[:keyspace]};", _params = [])
Xandra.Cluster.execute!(cluster, statement, _params = [])
end

def build_cql(schema_module) do
Expand Down
10 changes: 7 additions & 3 deletions lib/triton/setup/table.ex
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,8 @@ defmodule Triton.Setup.Table do
@doc """
Attempts to create tables at compile time by connecting to DB with Xandra
"""
alias Triton.Setup.DbConnection

def setup(schema_module) do
blueprint = Triton.Metadata.schema(schema_module).__struct__
try do
Expand Down Expand Up @@ -38,11 +40,13 @@ defmodule Triton.Setup.Table do

node_config = Keyword.put(node_config, :nodes, node_config[:nodes])
{:ok, _apps} = Application.ensure_all_started(:xandra)
{:ok, conn} = Xandra.Cluster.start_link(node_config)
{:ok, cluster} = DbConnection.get_cluster(node_config)

statement = build_cql(schema_module)
Xandra.Cluster.execute!(conn, "USE #{node_config[:keyspace]};", _params = [])
Xandra.Cluster.execute!(conn, statement, _params = [])
IO.puts "TABLE!!!!!!!!!"
Xandra.Cluster.execute!(cluster, "USE #{node_config[:keyspace]};", _params = [])
IO.puts "TABLE2!!!!!!!!!"
Xandra.Cluster.execute!(cluster, statement, _params = [])
end

def build_cql(schema_module) do
Expand Down