cc-backend/graph/resolver.go

214 lines
6.0 KiB
Go

package graph
import (
"context"
"errors"
"fmt"
"log"
"regexp"
"strings"
"github.com/ClusterCockpit/cc-jobarchive/auth"
"github.com/ClusterCockpit/cc-jobarchive/graph/model"
"github.com/ClusterCockpit/cc-jobarchive/schema"
sq "github.com/Masterminds/squirrel"
"github.com/jmoiron/sqlx"
)
// This file will not be regenerated automatically.
//
// It serves as dependency injection for your app, add any dependencies you require here.
type Resolver struct {
DB *sqlx.DB
findJobByIdStmt *sqlx.Stmt
findJobByIdWithUserStmt *sqlx.Stmt
}
func (r *Resolver) Init() {
findJobById, _, err := sq.Select(schema.JobColumns...).From("job").Where("job.id = ?", nil).ToSql()
if err != nil {
log.Fatal(err)
}
r.findJobByIdStmt, err = r.DB.Preparex(findJobById)
if err != nil {
log.Fatal(err)
}
findJobByIdWithUser, _, err := sq.Select(schema.JobColumns...).From("job").Where("job.id = ?", nil).Where("job.user = ?").ToSql()
if err != nil {
log.Fatal(err)
}
r.findJobByIdWithUserStmt, err = r.DB.Preparex(findJobByIdWithUser)
if err != nil {
log.Fatal(err)
}
}
// Helper function for the `jobs` GraphQL-Query. Is also used elsewhere when a list of jobs is needed.
func (r *Resolver) queryJobs(ctx context.Context, filters []*model.JobFilter, page *model.PageRequest, order *model.OrderByInput) ([]*schema.Job, int, error) {
query := sq.Select(schema.JobColumns...).From("job")
query = securityCheck(ctx, query)
if order != nil {
field := toSnakeCase(order.Field)
if order.Order == model.SortDirectionEnumAsc {
query = query.OrderBy(fmt.Sprintf("job.%s ASC", field))
} else if order.Order == model.SortDirectionEnumDesc {
query = query.OrderBy(fmt.Sprintf("job.%s DESC", field))
} else {
return nil, 0, errors.New("invalid sorting order")
}
}
if page != nil {
limit := uint64(page.ItemsPerPage)
query = query.Offset((uint64(page.Page) - 1) * limit).Limit(limit)
} else {
query = query.Limit(50)
}
for _, f := range filters {
query = buildWhereClause(f, query)
}
sql, args, err := query.ToSql()
if err != nil {
return nil, 0, err
}
rows, err := r.DB.Queryx(sql, args...)
if err != nil {
return nil, 0, err
}
jobs := make([]*schema.Job, 0, 50)
for rows.Next() {
job, err := schema.ScanJob(rows)
if err != nil {
return nil, 0, err
}
jobs = append(jobs, job)
}
// count all jobs:
query = sq.Select("count(*)").From("job")
for _, f := range filters {
query = buildWhereClause(f, query)
}
var count int
if err := query.RunWith(r.DB).Scan(&count); err != nil {
return nil, 0, err
}
return jobs, count, nil
}
func securityCheck(ctx context.Context, query sq.SelectBuilder) sq.SelectBuilder {
user := auth.GetUser(ctx)
if user == nil || user.IsAdmin {
return query
}
return query.Where("job.user = ?", user.Username)
}
// Build a sq.SelectBuilder out of a schema.JobFilter.
func buildWhereClause(filter *model.JobFilter, query sq.SelectBuilder) sq.SelectBuilder {
if filter.Tags != nil {
query = query.Join("jobtag ON jobtag.job_id = job.id").Where(sq.Eq{"jobtag.tag_id": filter.Tags})
}
if filter.JobID != nil {
query = buildStringCondition("job.job_id", filter.JobID, query)
}
if filter.User != nil {
query = buildStringCondition("job.user", filter.User, query)
}
if filter.Project != nil {
query = buildStringCondition("job.project", filter.Project, query)
}
if filter.Cluster != nil {
query = buildStringCondition("job.cluster", filter.Cluster, query)
}
if filter.StartTime != nil {
query = buildTimeCondition("job.start_time", filter.StartTime, query)
}
if filter.Duration != nil {
query = buildIntCondition("job.duration", filter.Duration, query)
}
if filter.State != nil {
states := make([]string, len(filter.State))
for i, val := range filter.State {
states[i] = string(val)
}
query = query.Where(sq.Eq{"job.job_state": states})
}
if filter.NumNodes != nil {
query = buildIntCondition("job.num_nodes", filter.NumNodes, query)
}
if filter.FlopsAnyAvg != nil {
query = buildFloatCondition("job.flops_any_avg", filter.FlopsAnyAvg, query)
}
if filter.MemBwAvg != nil {
query = buildFloatCondition("job.mem_bw_avg", filter.MemBwAvg, query)
}
if filter.LoadAvg != nil {
query = buildFloatCondition("job.load_avg", filter.LoadAvg, query)
}
if filter.MemUsedMax != nil {
query = buildFloatCondition("job.mem_used_max", filter.MemUsedMax, query)
}
return query
}
func buildIntCondition(field string, cond *model.IntRange, query sq.SelectBuilder) sq.SelectBuilder {
return query.Where(field+" BETWEEN ? AND ?", cond.From, cond.To)
}
func buildTimeCondition(field string, cond *model.TimeRange, query sq.SelectBuilder) sq.SelectBuilder {
if cond.From != nil && cond.To != nil {
return query.Where(field+" BETWEEN ? AND ?", cond.From.Unix(), cond.To.Unix())
} else if cond.From != nil {
return query.Where("? <= "+field, cond.From.Unix())
} else if cond.To != nil {
return query.Where(field+" <= ?", cond.To.Unix())
} else {
return query
}
}
func buildFloatCondition(field string, cond *model.FloatRange, query sq.SelectBuilder) sq.SelectBuilder {
return query.Where(field+" BETWEEN ? AND ?", cond.From, cond.To)
}
func buildStringCondition(field string, cond *model.StringInput, query sq.SelectBuilder) sq.SelectBuilder {
if cond.Eq != nil {
return query.Where(field+" = ?", *cond.Eq)
}
if cond.StartsWith != nil {
return query.Where(field+" LIKE ?", fmt.Sprint(*cond.StartsWith, "%"))
}
if cond.EndsWith != nil {
return query.Where(field+" LIKE ?", fmt.Sprint("%", *cond.EndsWith))
}
if cond.Contains != nil {
return query.Where(field+" LIKE ?", fmt.Sprint("%", *cond.Contains, "%"))
}
return query
}
var matchFirstCap = regexp.MustCompile("(.)([A-Z][a-z]+)")
var matchAllCap = regexp.MustCompile("([a-z0-9])([A-Z])")
func toSnakeCase(str string) string {
str = strings.ReplaceAll(str, "'", "")
str = strings.ReplaceAll(str, "\\", "")
snake := matchFirstCap.ReplaceAllString(str, "${1}_${2}")
snake = matchAllCap.ReplaceAllString(snake, "${1}_${2}")
return strings.ToLower(snake)
}