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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
// Author: arnej
package jvm
import (
"fmt"
"sort"
"strings"
"github.com/vespa-engine/vespa/client/go/prog"
"github.com/vespa-engine/vespa/client/go/trace"
"github.com/vespa-engine/vespa/client/go/util"
)
type Container interface {
ServiceName() string
ConfigId() string
ArgForMain() string
JvmOptions() *Options
Exec()
exportExtraEnv(ps *prog.Spec)
}
type containerBase struct {
configId string
serviceName string
jvmArgs *Options
}
func (cb *containerBase) ServiceName() string {
return cb.serviceName
}
func (cb *containerBase) JvmOptions() *Options {
return cb.jvmArgs
}
func (cb *containerBase) ConfigId() string {
return cb.configId
}
func keysOfMap(m map[string]string) []string {
keys := make([]string, 0, len(m))
for k, _ := range m {
keys = append(keys, k)
}
return keys
}
func readableEnv(env map[string]string) string {
keys := keysOfMap(env)
sort.Strings(keys)
var buf strings.Builder
for _, k := range keys {
fmt.Fprintf(&buf, " %s=%s", k, env[k])
}
return buf.String()
}
func (cb *containerBase) Exec() {
argv := make([]string, 0, 100)
argv = append(argv, "java")
for _, x := range cb.JvmOptions().Args() {
argv = append(argv, x)
}
p := prog.NewSpec(argv)
p.ConfigureNumaCtl()
cb.JvmOptions().exportEnvSettings(p)
trace.Info("starting container; env:", readableEnv(p.Env))
trace.Info("starting container; exec:", argv)
err := p.Run()
util.JustExitWith(err)
}
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