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handler.go
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handler.go
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// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package sql
import (
"fmt"
"log"
"net"
"github.com/urfave/cli"
"github.com/uber/cadence/common/config"
mysql_db "github.com/uber/cadence/common/persistence/sql/sqlplugin/mysql"
postgres_db "github.com/uber/cadence/common/persistence/sql/sqlplugin/postgres"
"github.com/uber/cadence/schema/mysql"
"github.com/uber/cadence/schema/postgres"
cliflag "github.com/uber/cadence/tools/common/flag"
"github.com/uber/cadence/tools/common/schema"
)
// VerifyCompatibleVersion ensures that the installed version of cadence and visibility
// is greater than or equal to the expected version.
func VerifyCompatibleVersion(
cfg config.Persistence,
) error {
ds, ok := cfg.DataStores[cfg.DefaultStore]
if ok && ds.SQL != nil {
expectedVersion := mysql.Version
switch ds.SQL.PluginName {
case mysql_db.PluginName:
expectedVersion = mysql.Version
case postgres_db.PluginName:
expectedVersion = postgres.Version
}
err := CheckCompatibleVersion(*ds.SQL, expectedVersion)
if err != nil {
return err
}
}
ds, ok = cfg.DataStores[cfg.VisibilityStore]
if ok && ds.SQL != nil {
expectedVersion := mysql.VisibilityVersion
switch ds.SQL.PluginName {
case mysql_db.PluginName:
expectedVersion = mysql.VisibilityVersion
case postgres_db.PluginName:
expectedVersion = postgres.VisibilityVersion
}
err := CheckCompatibleVersion(*ds.SQL, expectedVersion)
if err != nil {
return err
}
}
return nil
}
// CheckCompatibleVersion check the version compatibility
func CheckCompatibleVersion(
cfg config.SQL,
expectedVersion string,
) error {
if !cfg.UseMultipleDatabases {
return doCheckCompatibleVersion(cfg, expectedVersion)
}
// recover from the original at the end
defer func() {
cfg.User = ""
cfg.Password = ""
cfg.DatabaseName = ""
cfg.ConnectAddr = ""
cfg.UseMultipleDatabases = true
}()
cfg.UseMultipleDatabases = false
// loop over every database to check schema version
for idx, entry := range cfg.MultipleDatabasesConfig {
cfg.User = entry.User
cfg.Password = entry.Password
cfg.DatabaseName = entry.DatabaseName
cfg.ConnectAddr = entry.ConnectAddr
err := doCheckCompatibleVersion(cfg, expectedVersion)
if err != nil {
return fmt.Errorf("shardID %d fails at check schema version: %v", idx, err)
}
}
return nil
}
func doCheckCompatibleVersion(
cfg config.SQL,
expectedVersion string,
) error {
connection, err := NewConnection(&cfg)
if err != nil {
return fmt.Errorf("unable to create SQL connection: %v", err.Error())
}
defer connection.Close()
return schema.VerifyCompatibleVersion(connection, cfg.DatabaseName, expectedVersion)
}
// setupSchema executes the setupSchemaTask
// using the given command line arguments
// as input
func setupSchema(cli *cli.Context) error {
cfg, err := parseConnectConfig(cli)
if err != nil {
return handleErr(schema.NewConfigError(err.Error()))
}
conn, err := NewConnection(cfg)
if err != nil {
return handleErr(err)
}
defer conn.Close()
if err := schema.Setup(cli, conn); err != nil {
return handleErr(err)
}
return nil
}
// updateSchema executes the updateSchemaTask
// using the given command lien args as input
func updateSchema(cli *cli.Context) error {
cfg, err := parseConnectConfig(cli)
if err != nil {
return handleErr(schema.NewConfigError(err.Error()))
}
conn, err := NewConnection(cfg)
if err != nil {
return handleErr(err)
}
defer conn.Close()
if err := schema.Update(cli, conn); err != nil {
return handleErr(err)
}
return nil
}
// createDatabase creates a sql database
func createDatabase(cli *cli.Context) error {
cfg, err := parseConnectConfig(cli)
if err != nil {
return handleErr(schema.NewConfigError(err.Error()))
}
database := cli.String(schema.CLIOptDatabase)
if database == "" {
return handleErr(schema.NewConfigError("missing " + flag(schema.CLIOptDatabase) + " argument "))
}
err = doCreateDatabase(cfg, database)
if err != nil {
return handleErr(fmt.Errorf("error creating database:%v", err))
}
return nil
}
func doCreateDatabase(cfg *config.SQL, name string) error {
cfg.DatabaseName = ""
conn, err := NewConnection(cfg)
if err != nil {
return err
}
defer conn.Close()
return conn.CreateDatabase(name)
}
func parseConnectConfig(cli *cli.Context) (*config.SQL, error) {
cfg := new(config.SQL)
host := cli.GlobalString(schema.CLIOptEndpoint)
port := cli.GlobalInt(schema.CLIOptPort)
cfg.ConnectAddr = fmt.Sprintf("%s:%v", host, port)
cfg.User = cli.GlobalString(schema.CLIOptUser)
cfg.Password = cli.GlobalString(schema.CLIOptPassword)
cfg.DatabaseName = cli.GlobalString(schema.CLIOptDatabase)
cfg.PluginName = cli.GlobalString(schema.CLIOptPluginName)
connectAttributes := cli.GlobalGeneric(schema.CLIOptConnectAttributes).(*cliflag.StringMap)
cfg.ConnectAttributes = connectAttributes.Value()
if cli.GlobalBool(schema.CLIFlagEnableTLS) {
cfg.TLS = &config.TLS{
Enabled: true,
CertFile: cli.GlobalString(schema.CLIFlagTLSCertFile),
KeyFile: cli.GlobalString(schema.CLIFlagTLSKeyFile),
CaFile: cli.GlobalString(schema.CLIFlagTLSCaFile),
EnableHostVerification: cli.GlobalBool(schema.CLIFlagTLSEnableHostVerification),
}
}
if err := ValidateConnectConfig(cfg); err != nil {
return nil, err
}
return cfg, nil
}
// ValidateConnectConfig validates params
func ValidateConnectConfig(cfg *config.SQL) error {
host, _, err := net.SplitHostPort(cfg.ConnectAddr)
if err != nil {
return schema.NewConfigError("invalid host and port " + cfg.ConnectAddr)
}
if len(host) == 0 {
return schema.NewConfigError("missing sql endpoint argument " + flag(schema.CLIOptEndpoint))
}
if cfg.DatabaseName == "" {
return schema.NewConfigError("missing " + flag(schema.CLIOptDatabase) + " argument")
}
if cfg.TLS != nil && cfg.TLS.Enabled {
enabledCaFile := cfg.TLS.CaFile != ""
enabledCertFile := cfg.TLS.CertFile != ""
enabledKeyFile := cfg.TLS.KeyFile != ""
if (enabledCertFile && !enabledKeyFile) || (!enabledCertFile && enabledKeyFile) {
return schema.NewConfigError("must have both CertFile and KeyFile set")
}
if !enabledCaFile && !enabledCertFile && !enabledKeyFile {
return schema.NewConfigError("must provide tls certs to use")
}
}
return nil
}
func flag(opt string) string {
return "(-" + opt + ")"
}
func handleErr(err error) error {
log.Println(err)
return err
}