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Move SQL driver conversion helpers to raftlogs package
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,107 @@ | ||
| /* | ||
| Copyright 2023 Avi Zimmerman <[email protected]> | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package raftlogs | ||
|
|
||
| import ( | ||
| "database/sql" | ||
| "database/sql/driver" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| v1 "github.com/webmeshproj/api/v1" | ||
| "google.golang.org/protobuf/types/known/timestamppb" | ||
| ) | ||
|
|
||
| // ValuesToNamedValues converts a slice of values to a slice of NamedValues. | ||
| func ValuesToNamedValues(args []driver.Value) []driver.NamedValue { | ||
| named := make([]driver.NamedValue, len(args)) | ||
| for i, arg := range args { | ||
| named[i] = driver.NamedValue{ | ||
| Ordinal: i + 1, | ||
| Value: arg, | ||
| } | ||
| } | ||
| return named | ||
| } | ||
|
|
||
| // NamedValuesToSQLParameters converts a slice of NamedValues to a slice of SQLParameters. | ||
| func NamedValuesToSQLParameters(values []driver.NamedValue) ([]*v1.SQLParameter, error) { | ||
| params := make([]*v1.SQLParameter, len(values)) | ||
| for i, argz := range values { | ||
| arg := argz | ||
| sqlParam := &v1.SQLParameter{Name: arg.Name} | ||
| switch v := arg.Value.(type) { | ||
| case nil: | ||
| sqlParam.Type = v1.SQLParameterType_SQL_PARAM_NULL | ||
| case bool: | ||
| sqlParam.Type = v1.SQLParameterType_SQL_PARAM_BOOL | ||
| sqlParam.Bool = v | ||
| case int: | ||
| sqlParam.Type = v1.SQLParameterType_SQL_PARAM_INT64 | ||
| sqlParam.Int64 = int64(v) | ||
| case int64: | ||
| sqlParam.Type = v1.SQLParameterType_SQL_PARAM_INT64 | ||
| sqlParam.Int64 = v | ||
| case float64: | ||
| sqlParam.Type = v1.SQLParameterType_SQL_PARAM_DOUBLE | ||
| sqlParam.Double = v | ||
| case string: | ||
| sqlParam.Type = v1.SQLParameterType_SQL_PARAM_STRING | ||
| sqlParam.Str = v | ||
| case []byte: | ||
| sqlParam.Type = v1.SQLParameterType_SQL_PARAM_BYTES | ||
| sqlParam.Bytes = v | ||
| case time.Time: | ||
| sqlParam.Type = v1.SQLParameterType_SQL_PARAM_TIME | ||
| sqlParam.Time = timestamppb.New(v) | ||
| default: | ||
| return nil, fmt.Errorf("unsupported parameter type: %T", v) | ||
| } | ||
| params[i] = sqlParam | ||
| } | ||
| return params, nil | ||
| } | ||
|
|
||
| // SQLParametersToNamedArgs converts a slice of SQLParameters to a slice of NamedArgs. | ||
| func SQLParametersToNamedArgs(params []*v1.SQLParameter) ([]any, error) { | ||
| if params == nil { | ||
| return nil, nil | ||
| } | ||
| values := make([]any, len(params)) | ||
| for idx, param := range params { | ||
| i := idx | ||
| switch param.GetType() { | ||
| case v1.SQLParameterType_SQL_PARAM_INT64: | ||
| values[i] = sql.Named(param.GetName(), param.Int64) | ||
| case v1.SQLParameterType_SQL_PARAM_DOUBLE: | ||
| values[i] = sql.Named(param.GetName(), param.Double) | ||
| case v1.SQLParameterType_SQL_PARAM_BOOL: | ||
| values[i] = sql.Named(param.GetName(), param.Bool) | ||
| case v1.SQLParameterType_SQL_PARAM_BYTES: | ||
| values[i] = sql.Named(param.GetName(), param.Bytes) | ||
| case v1.SQLParameterType_SQL_PARAM_STRING: | ||
| values[i] = sql.Named(param.GetName(), param.Str) | ||
| case v1.SQLParameterType_SQL_PARAM_TIME: | ||
| values[i] = sql.Named(param.GetName(), param.Time.AsTime()) | ||
| case v1.SQLParameterType_SQL_PARAM_NULL: | ||
| values[i] = sql.Named(param.GetName(), nil) | ||
| default: | ||
| return nil, fmt.Errorf("unsupported type: %T", param.GetType()) | ||
| } | ||
| } | ||
| return values, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| /* | ||
| Copyright 2023 Avi Zimmerman <[email protected]> | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package raftlogs | ||
|
|
||
| import ( | ||
| "database/sql/driver" | ||
| "fmt" | ||
| "io" | ||
|
|
||
| v1 "github.com/webmeshproj/api/v1" | ||
| ) | ||
|
|
||
| // NewResult returns a new driver.Result from the given RaftApplyResponse. | ||
| func NewResult(res *v1.SQLExecResult) driver.Result { | ||
| return &execResult{res} | ||
| } | ||
|
|
||
| type execResult struct { | ||
| res *v1.SQLExecResult | ||
| } | ||
|
|
||
| // LastInsertId returns the database's auto-generated ID | ||
| // after, for example, an INSERT into a table with primary | ||
| // key. | ||
| func (r *execResult) LastInsertId() (int64, error) { | ||
| return r.res.GetLastInsertId(), nil | ||
| } | ||
|
|
||
| // RowsAffected returns the number of rows affected by the | ||
| // query. | ||
| func (r *execResult) RowsAffected() (int64, error) { | ||
| return r.res.GetRowsAffected(), nil | ||
| } | ||
|
|
||
| // NewRows returns a new driver.Rows from the given RaftApplyResponse. | ||
| func NewRows(res *v1.SQLQueryResult) driver.Rows { | ||
| return &queryResult{res, 0} | ||
| } | ||
|
|
||
| type queryResult struct { | ||
| res *v1.SQLQueryResult | ||
| index int64 | ||
| } | ||
|
|
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| // Columns returns the names of the columns. | ||
| func (q *queryResult) Columns() []string { | ||
| return q.res.GetColumns() | ||
| } | ||
|
|
||
| // Next is called to populate the next row of data into | ||
| // the provided slice. | ||
| func (q *queryResult) Next(dest []driver.Value) error { | ||
| if q.index >= int64(len(q.res.GetValues())) { | ||
| return io.EOF | ||
| } | ||
| var err error | ||
| for i, v := range q.res.GetValues()[q.index].Values { | ||
| dest[i], err = SQLParameterToDriverValue(v) | ||
| if err != nil { | ||
| return fmt.Errorf("sql parameter to driver value: %w", err) | ||
| } | ||
| } | ||
| q.index++ | ||
| return nil | ||
| } | ||
|
|
||
| // ColumnTypeDatabaseTypeName returns the database system type. | ||
| func (q *queryResult) ColumnTypeDatabaseTypeName(index int) string { | ||
| return q.res.GetTypes()[index] | ||
| } | ||
|
|
||
| // Close closes the rows iterator. | ||
| func (q *queryResult) Close() error { | ||
| return nil | ||
| } |
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