crud: support schema opts

Follows #336

Author: DifferentialOrange

crud/options.go

@@ -23,6 +23,7 @@ const (
 	batchSizeOptName                     = "batch_size"
 	fetchLatestMetadataOptName           = "fetch_latest_metadata"
 	noreturnOptName                      = "noreturn"
+	cachedOptName                        = "cached"
 )
 
 // OptUint is an optional uint.

crud/request_test.go

@@ -194,6 +194,7 @@ func TestRequestsCodes(t *testing.T) {
 		{req: crud.MakeCountRequest(validSpace), rtype: CrudRequestType},
 		{req: crud.MakeStorageInfoRequest(), rtype: CrudRequestType},
 		{req: crud.MakeStatsRequest(), rtype: CrudRequestType},
+		{req: crud.MakeSchemaRequest(), rtype: CrudRequestType},
 	}
 
 	for _, test := range tests {
@@ -231,6 +232,7 @@ func TestRequestsAsync(t *testing.T) {
 		{req: crud.MakeCountRequest(validSpace), async: false},
 		{req: crud.MakeStorageInfoRequest(), async: false},
 		{req: crud.MakeStatsRequest(), async: false},
+		{req: crud.MakeSchemaRequest(), async: false},
 	}
 
 	for _, test := range tests {
@@ -268,6 +270,7 @@ func TestRequestsCtx_default(t *testing.T) {
 		{req: crud.MakeCountRequest(validSpace), expected: nil},
 		{req: crud.MakeStorageInfoRequest(), expected: nil},
 		{req: crud.MakeStatsRequest(), expected: nil},
+		{req: crud.MakeSchemaRequest(), expected: nil},
 	}
 
 	for _, test := range tests {
@@ -306,6 +309,7 @@ func TestRequestsCtx_setter(t *testing.T) {
 		{req: crud.MakeCountRequest(validSpace).Context(ctx), expected: ctx},
 		{req: crud.MakeStorageInfoRequest().Context(ctx), expected: ctx},
 		{req: crud.MakeStatsRequest().Context(ctx), expected: ctx},
+		{req: crud.MakeSchemaRequest().Context(ctx), expected: ctx},
 	}
 
 	for _, test := range tests {
@@ -462,6 +466,12 @@ func TestRequestsDefaultValues(t *testing.T) {
 				[]interface{}{}),
 			target: crud.MakeStatsRequest(),
 		},
+		{
+			name: "SchemaRequest",
+			ref: tarantool.NewCall17Request("crud.schema").Args(
+				[]interface{}{}),
+			target: crud.MakeSchemaRequest(),
+		},
 	}
 
 	for _, tc := range testCases {
@@ -624,6 +634,12 @@ func TestRequestsSetters(t *testing.T) {
 				[]interface{}{spaceName}),
 			target: crud.MakeStatsRequest().Space(spaceName),
 		},
+		{
+			name: "SchemaRequest",
+			ref: tarantool.NewCall17Request("crud.schema").Args(
+				[]interface{}{spaceName}),
+			target: crud.MakeSchemaRequest().Space(spaceName),
+		},
 	}
 
 	for _, tc := range testCases {

crud/schema.go

@@ -14,11 +14,39 @@ func msgpackIsMap(code byte) bool {
 	return code == msgpcode.Map16 || code == msgpcode.Map32 || msgpcode.IsFixedMap(code)
 }
 
+// SchemaOpts describes options for `crud.schema` method.
+type SchemaOpts struct {
+	// Timeout is a `vshard.call` timeout and vshard
+	// master discovery timeout (in seconds).
+	Timeout OptFloat64
+	// VshardRouter is cartridge vshard group name or
+	// vshard router instance.
+	VshardRouter OptString
+	// Cached defines whether router should reload storage schema on call.
+	Cached OptBool
+}
+
+// EncodeMsgpack provides custom msgpack encoder.
+func (opts SchemaOpts) EncodeMsgpack(enc *msgpack.Encoder) error {
+	const optsCnt = 3
+
+	names := [optsCnt]string{timeoutOptName, vshardRouterOptName,
+		cachedOptName}
+	values := [optsCnt]interface{}{}
+	exists := [optsCnt]bool{}
+	values[0], exists[0] = opts.Timeout.Get()
+	values[1], exists[1] = opts.VshardRouter.Get()
+	values[2], exists[2] = opts.Cached.Get()
+
+	return encodeOptions(enc, names[:], values[:], exists[:])
+}
+
 // SchemaRequest helps you to create request object to call `crud.schema`
 // for execution by a Connection.
 type SchemaRequest struct {
 	baseRequest
 	space OptString
+	opts  SchemaOpts
 }
 
 // MakeSchemaRequest returns a new empty SchemaRequest.
@@ -35,6 +63,13 @@ func (req SchemaRequest) Space(space string) SchemaRequest {
 	return req
 }
 
+// Opts sets the options for the SelectRequest request.
+// Note: default value is nil.
+func (req SchemaRequest) Opts(opts SchemaOpts) SchemaRequest {
+	req.opts = opts
+	return req
+}
+
 // Body fills an encoder with the call request body.
 func (req SchemaRequest) Body(res tarantool.SchemaResolver, enc *msgpack.Encoder) error {
 	if value, ok := req.space.Get(); ok {

crud/tarantool_test.go

@@ -87,6 +87,11 @@ var opObjManyOpts = crud.OperationObjectManyOpts{
 	Timeout: crud.MakeOptFloat64(timeout),
 }
 
+var schemaOpts = crud.SchemaOpts{
+	Timeout: crud.MakeOptFloat64(timeout),
+	Cached:  crud.MakeOptBool(false),
+}
+
 var conditions = []crud.Condition{
 	{
 		Operator: crud.Lt,
@@ -216,6 +221,11 @@ var testProcessDataCases = []struct {
 		1,
 		crud.MakeStorageInfoRequest().Opts(baseOpts),
 	},
+	{
+		"Schema",
+		1,
+		crud.MakeSchemaRequest().Opts(schemaOpts),
+	},
 }
 
 var testResultWithErrCases = []struct {