/usr/share/gocode/src/github.com/ctdk/goiardi/node/sql_funcs.go is in golang-github-ctdk-goiardi-dev 0.11.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2013-2016, Jeremy Bingham (<jeremy@goiardi.gl>)
*
* 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 node
/* Generic SQL functions for nodes */
import (
"database/sql"
"fmt"
"github.com/ctdk/goiardi/config"
"github.com/ctdk/goiardi/datastore"
"log"
"strings"
)
func checkForNodeSQL(dbhandle datastore.Dbhandle, name string) (bool, error) {
_, err := datastore.CheckForOne(datastore.Dbh, "nodes", name)
if err == nil {
return true, nil
}
if err != sql.ErrNoRows {
return false, err
}
return false, nil
}
// Fill in a node from a row returned from the SQL server. Useful for the case
// down the road where an array of objects is needed, but building it with
// a call to GetList(), then repeated calls to Get() sucks with a real db even
// if it's marginally acceptable in in-memory mode.
//
// NB: This does require the query to look like the one in Get().
func (n *Node) fillNodeFromSQL(row datastore.ResRow) error {
var (
rl []byte
aa []byte
na []byte
da []byte
oa []byte
)
err := row.Scan(&n.Name, &n.ChefEnvironment, &rl, &aa, &na, &da, &oa)
if err != nil {
return err
}
n.ChefType = "node"
n.JSONClass = "Chef::Node"
err = datastore.DecodeBlob(rl, &n.RunList)
if err != nil {
return err
}
err = datastore.DecodeBlob(aa, &n.Automatic)
if err != nil {
return err
}
err = datastore.DecodeBlob(na, &n.Normal)
if err != nil {
return err
}
err = datastore.DecodeBlob(da, &n.Default)
if err != nil {
return err
}
err = datastore.DecodeBlob(oa, &n.Override)
if err != nil {
return err
}
datastore.ChkNilArray(n)
return nil
}
func getSQL(nodeName string) (*Node, error) {
node := new(Node)
var sqlStmt string
if config.Config.UseMySQL {
sqlStmt = "select n.name, chef_environment, n.run_list, n.automatic_attr, n.normal_attr, n.default_attr, n.override_attr from nodes n where n.name = ?"
} else if config.Config.UsePostgreSQL {
sqlStmt = "select n.name, chef_environment, n.run_list, n.automatic_attr, n.normal_attr, n.default_attr, n.override_attr from goiardi.nodes n where n.name = $1"
}
stmt, err := datastore.Dbh.Prepare(sqlStmt)
if err != nil {
return nil, err
}
defer stmt.Close()
row := stmt.QueryRow(nodeName)
err = node.fillNodeFromSQL(row)
if err != nil {
return nil, err
}
return node, nil
}
func getMultiSQL(nodeNames []string) ([]*Node, error) {
var sqlStmt string
bind := make([]string, len(nodeNames))
if config.Config.UseMySQL {
for i := range nodeNames {
bind[i] = "?"
}
sqlStmt = fmt.Sprintf("select n.name, chef_environment, n.run_list, n.automatic_attr, n.normal_attr, n.default_attr, n.override_attr from nodes n where n.name in (%s)", strings.Join(bind, ", "))
} else if config.Config.UsePostgreSQL {
for i := range nodeNames {
bind[i] = fmt.Sprintf("$%d", i+1)
}
sqlStmt = fmt.Sprintf("select n.name, chef_environment, n.run_list, n.automatic_attr, n.normal_attr, n.default_attr, n.override_attr from goiardi.nodes n where n.name in (%s)", strings.Join(bind, ", "))
}
stmt, err := datastore.Dbh.Prepare(sqlStmt)
if err != nil {
return nil, err
}
defer stmt.Close()
nameArgs := make([]interface{}, len(nodeNames))
for i, v := range nodeNames {
nameArgs[i] = v
}
rows, err := stmt.Query(nameArgs...)
if err != nil {
return nil, err
}
nodes := make([]*Node, 0, len(nodeNames))
for rows.Next() {
n := new(Node)
err = n.fillNodeFromSQL(rows)
if err != nil {
rows.Close()
return nil, err
}
nodes = append(nodes, n)
}
rows.Close()
if err = rows.Err(); err != nil {
return nil, err
}
return nodes, nil
}
func (n *Node) saveSQL() error {
// prepare the complex structures for saving
rlb, rlerr := datastore.EncodeBlob(&n.RunList)
if rlerr != nil {
return rlerr
}
aab, aaerr := datastore.EncodeBlob(&n.Automatic)
if aaerr != nil {
return aaerr
}
nab, naerr := datastore.EncodeBlob(&n.Normal)
if naerr != nil {
return naerr
}
dab, daerr := datastore.EncodeBlob(&n.Default)
if daerr != nil {
return daerr
}
oab, oaerr := datastore.EncodeBlob(&n.Override)
if oaerr != nil {
return oaerr
}
tx, err := datastore.Dbh.Begin()
if err != nil {
return err
}
if config.Config.UseMySQL {
err = n.saveMySQL(tx, rlb, aab, nab, dab, oab)
} else if config.Config.UsePostgreSQL {
err = n.savePostgreSQL(tx, rlb, aab, nab, dab, oab)
}
if err != nil {
tx.Rollback()
return err
}
tx.Commit()
return nil
}
func (n *Node) deleteSQL() error {
tx, err := datastore.Dbh.Begin()
if err != nil {
return err
}
var sqlStmt string
if config.Config.UseMySQL {
sqlStmt = "DELETE FROM nodes WHERE name = ?"
} else if config.Config.UsePostgreSQL {
sqlStmt = "DELETE FROM goiardi.nodes WHERE name = $1"
}
_, err = tx.Exec(sqlStmt, n.Name)
if err != nil {
terr := tx.Rollback()
if terr != nil {
err = fmt.Errorf("deleting node %s had an error '%s', and then rolling back the transaction gave another error '%s'", n.Name, err.Error(), terr.Error())
}
return err
}
tx.Commit()
return err
}
func (ns *NodeStatus) updateNodeStatusSQL() error {
if config.Config.UseMySQL {
return ns.updateNodeStatusMySQL()
} else if config.Config.UsePostgreSQL {
return ns.updateNodeStatusPostgreSQL()
}
err := fmt.Errorf("reached an impossible db state")
return err
}
func (ns *NodeStatus) importNodeStatus() error {
var sqlStmt string
if config.Config.UseMySQL {
sqlStmt = "INSERT INTO node_statuses (node_id, status, updated_at) SELECT id, ?, ? FROM nodes WHERE name = ?"
} else if config.Config.UsePostgreSQL {
sqlStmt = "INSERT INTO goiardi.node_statuses (node_id, status, updated_at) SELECT id, $1, $2 FROM goiardi.nodes WHERE name = $3"
}
tx, err := datastore.Dbh.Begin()
if err != nil {
return err
}
_, err = tx.Exec(sqlStmt, ns.Status, ns.UpdatedAt, ns.Node.Name)
if err != nil {
tx.Rollback()
return err
}
tx.Commit()
return nil
}
func getListSQL() []string {
var nodeList []string
var sqlStmt string
if config.Config.UseMySQL {
sqlStmt = "SELECT name FROM nodes"
} else if config.Config.UsePostgreSQL {
sqlStmt = "SELECT name FROM goiardi.nodes"
}
rows, err := datastore.Dbh.Query(sqlStmt)
if err != nil {
if err != sql.ErrNoRows {
log.Fatal(err)
}
rows.Close()
return nodeList
}
for rows.Next() {
var nodeName string
err = rows.Scan(&nodeName)
if err != nil {
log.Fatal(err)
}
nodeList = append(nodeList, nodeName)
}
rows.Close()
if err = rows.Err(); err != nil {
log.Fatal(err)
}
return nodeList
}
func getNodesInEnvSQL(envName string) ([]*Node, error) {
var nodes []*Node
var sqlStmt string
if config.Config.UseMySQL {
sqlStmt = "SELECT n.name, chef_environment, n.run_list, n.automatic_attr, n.normal_attr, n.default_attr, n.override_attr FROM nodes n WHERE n.chef_environment = ?"
} else if config.Config.UsePostgreSQL {
sqlStmt = "SELECT n.name, chef_environment, n.run_list, n.automatic_attr, n.normal_attr, n.default_attr, n.override_attr FROM goiardi.nodes n WHERE n.chef_environment = $1"
}
stmt, err := datastore.Dbh.Prepare(sqlStmt)
if err != nil {
return nil, err
}
defer stmt.Close()
rows, qerr := stmt.Query(envName)
if qerr != nil {
if qerr == sql.ErrNoRows {
return nodes, nil
}
return nil, qerr
}
for rows.Next() {
n := new(Node)
err = n.fillNodeFromSQL(rows)
if err != nil {
rows.Close()
return nil, err
}
nodes = append(nodes, n)
}
rows.Close()
if err = rows.Err(); err != nil {
return nil, err
}
return nodes, nil
}
func allNodesSQL() []*Node {
var nodes []*Node
var sqlStmt string
if config.Config.UseMySQL {
sqlStmt = "select n.name, chef_environment, n.run_list, n.automatic_attr, n.normal_attr, n.default_attr, n.override_attr from nodes n"
} else if config.Config.UsePostgreSQL {
sqlStmt = "select n.name, chef_environment, n.run_list, n.automatic_attr, n.normal_attr, n.default_attr, n.override_attr from goiardi.nodes n"
}
stmt, err := datastore.Dbh.Prepare(sqlStmt)
if err != nil {
log.Fatal(err)
}
defer stmt.Close()
rows, qerr := stmt.Query()
if qerr != nil {
if qerr == sql.ErrNoRows {
return nodes
}
log.Fatal(qerr)
}
for rows.Next() {
no := new(Node)
err = no.fillNodeFromSQL(rows)
if err != nil {
log.Fatal(err)
}
nodes = append(nodes, no)
}
rows.Close()
if err = rows.Err(); err != nil {
log.Fatal(err)
}
return nodes
}
func (n *Node) latestStatusSQL() (*NodeStatus, error) {
var sqlStmt string
if config.Config.UseMySQL {
sqlStmt = "SELECT status, ns.updated_at FROM node_statuses ns JOIN nodes n on ns.node_id = n.id WHERE n.name = ? ORDER BY ns.id DESC LIMIT 1"
} else if config.Config.UsePostgreSQL {
sqlStmt = "SELECT status, updated_at FROM goiardi.node_latest_statuses WHERE name = $1"
}
stmt, err := datastore.Dbh.Prepare(sqlStmt)
if err != nil {
return nil, err
}
defer stmt.Close()
ns := &NodeStatus{Node: n}
row := stmt.QueryRow(n.Name)
if config.Config.UseMySQL {
err = ns.fillNodeStatusFromMySQL(row)
} else if config.Config.UsePostgreSQL {
err = ns.fillNodeStatusFromPostgreSQL(row)
}
if err != nil {
return nil, err
}
return ns, nil
}
func (n *Node) allStatusesSQL() ([]*NodeStatus, error) {
var nodeStatuses []*NodeStatus
var sqlStmt string
if config.Config.UseMySQL {
sqlStmt = "SELECT status, ns.updated_at FROM node_statuses ns JOIN nodes n on ns.node_id = n.id WHERE n.name = ? ORDER BY ns.id"
} else if config.Config.UsePostgreSQL {
sqlStmt = "SELECT status, ns.updated_at FROM goiardi.node_statuses ns JOIN goiardi.nodes n ON ns.node_id = n.id WHERE n.name = $1 ORDER BY ns.id"
}
stmt, err := datastore.Dbh.Prepare(sqlStmt)
if err != nil {
return nil, err
}
defer stmt.Close()
rows, qerr := stmt.Query(n.Name)
if qerr != nil {
if qerr == sql.ErrNoRows {
return nodeStatuses, nil
}
return nil, qerr
}
for rows.Next() {
ns := &NodeStatus{Node: n}
if config.Config.UseMySQL {
err = ns.fillNodeStatusFromMySQL(rows)
} else if config.Config.UsePostgreSQL {
err = ns.fillNodeStatusFromPostgreSQL(rows)
}
if err != nil {
return nil, err
}
nodeStatuses = append(nodeStatuses, ns)
}
rows.Close()
if err = rows.Err(); err != nil {
return nil, err
}
return nodeStatuses, nil
}
func unseenNodesSQL() ([]*Node, error) {
var nodes []*Node
var sqlStmt string
if config.Config.UseMySQL {
sqlStmt = "select n.name, chef_environment, n.run_list, n.automatic_attr, n.normal_attr, n.default_attr, n.override_attr from nodes n join node_statuses ns on n.id = ns.node_id where is_down = 0 group by n.id having max(ns.updated_at) < date_sub(now(), interval 10 minute)"
} else if config.Config.UsePostgreSQL {
sqlStmt = "select n.name, chef_environment, n.run_list, n.automatic_attr, n.normal_attr, n.default_attr, n.override_attr from goiardi.node_latest_statuses n where n.is_down = false AND n.updated_at < now() - interval '10 minute'"
}
stmt, err := datastore.Dbh.Prepare(sqlStmt)
if err != nil {
return nil, err
}
defer stmt.Close()
rows, qerr := stmt.Query()
if qerr != nil {
if qerr == sql.ErrNoRows {
return nodes, nil
}
return nil, qerr
}
for rows.Next() {
no := new(Node)
err = no.fillNodeFromSQL(rows)
if err != nil {
return nil, err
}
nodes = append(nodes, no)
}
rows.Close()
if err = rows.Err(); err != nil {
return nil, err
}
return nodes, nil
}
func getNodesByStatusSQL(nodeNames []string, status string) ([]*Node, error) {
if config.Config.UseMySQL {
return getNodesByStatusMySQL(nodeNames, status)
} else if config.Config.UsePostgreSQL {
return getNodesByStatusPostgreSQL(nodeNames, status)
}
err := fmt.Errorf("impossible db state, man")
return nil, err
}
func countSQL() (int64, error) {
var c int64
var sqlStmt string
if config.Config.UseMySQL {
sqlStmt = "SELECT COUNT(*) FROM nodes"
} else if config.Config.UsePostgreSQL {
sqlStmt = "SELECT COUNT(*) FROM goiardi.nodes"
}
stmt, err := datastore.Dbh.Prepare(sqlStmt)
if err != nil {
return 0, err
}
err = stmt.QueryRow().Scan(&c)
if err != nil {
return 0, err
}
return c, nil
}
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