{% asset_img 画像名 記事名 %}

{% asset_img "画像名" "記事名" %}

Service Locator と Dependency Injection とのどちらを採用するかの判断は、 ロケータへの依存性が問題になるかどうかにかかっている。

結合先モジュールの質にも着目しましょう。密な結合自体は問題ですが、本質的には、不安定な要素と密に結合するのが問題になります。安定的なライブラリに依存するのは特に問題ではありません。盲目的にデータ結合を目指すというより、相手によって付き合いの深さを判断しましょう。
`

Mar 20 13:21:45 unamu systemd[1]: Started testscript.
Mar 20 13:21:45 unamu systemd[83619]: test.service: Failed to execute command: Permission denied
Mar 20 13:21:45 unamu systemd[83619]: test.service: Failed at step EXEC spawning /tmp/test: Permission denied

$ getenforce
Enforcing

$ setenforce 0

[root@localhost unamu]# firewall-cmd --list-all
public (active)
  target: default
  icmp-block-inversion: no
  interfaces: enp0s3
  sources:
  services: cockpit dhcpv6-client http ssh
  ports:
  protocols:
  masquerade: no
  forward-ports:
  source-ports:
  icmp-blocks:
  rich rules:

[root@localhost unamu]# firewall-cmd --add-icmp-block-inversion
success
[root@localhost unamu]# firewall-cmd --list-all
public (active)
  target: default
  icmp-block-inversion: yes
  interfaces: enp0s3
  sources:
  services: cockpit dhcpv6-client http ssh
  ports:
  protocols:
  masquerade: no
  forward-ports:
  source-ports:
  icmp-blocks:
  rich rules:

~/D/g/D/laradock ❯❯❯ ping 192.168.11.17                                            (git)-[master]
PING 192.168.11.17 (192.168.11.17): 56 data bytes
92 bytes from 192.168.11.17: Communication prohibited by filter
Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
 4  5  00 5400 59d4   0 0000  40  01 896f 192.168.11.4  192.168.11.17

Request timeout for icmp_seq 0
92 bytes from 192.168.11.17: Communication prohibited by filter
Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
 4  5  00 5400 9edf   0 0000  40  01 4464 192.168.11.4  192.168.11.17

Request timeout for icmp_seq 1
92 bytes from 192.168.11.17: Communication prohibited by filter
Vr HL TOS  Len   ID Flg  off TTL Pro  cks      Src      Dst
 4  5  00 5400 40eb   0 0000  40  01 a258 192.168.11.4  192.168.11.17

^C
--- 192.168.11.17 ping statistics ---
3 packets transmitted, 0 packets received, 100.0% packet loss

[root@localhost unamu]# firewall-cmd --remove-icmp-block-inversion
success

[root@localhost unamu]# firewall-cmd --set-target=DROP --permanent
success
[root@localhost unamu]# firewall-cmd --list-all
public (active)
  target: default
  icmp-block-inversion: no
  interfaces: enp0s3
  sources:
  services: cockpit dhcpv6-client http ssh
  ports:
  protocols:
  masquerade: no
  forward-ports:
  source-ports:
  icmp-blocks:
  rich rules:
[root@localhost unamu]# firewall-cmd --reload
success
[root@localhost unamu]# firewall-cmd --list-all
public (active)
  target: DROP
  icmp-block-inversion: no
  interfaces: enp0s3
  sources:
  services: cockpit dhcpv6-client http ssh
  ports:
  protocols:
  masquerade: no
  forward-ports:
  source-ports:
  icmp-blocks:
  rich rules:

~/D/g/D/laradock ❯❯❯ ping 192.168.11.17                                            (git)-[master]
PING 192.168.11.17 (192.168.11.17): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
^C
--- 192.168.11.17 ping statistics ---
5 packets transmitted, 0 packets received, 100.0% packet loss

[root@localhost unamu]# firewall-cmd --set-target=default --permanent
success
[root@localhost unamu]# firewall-cmd --reload
success

body, _ := ioutil.ReadAll(resp.Body)
mt.Println(string(body))

# コンソール出力
{"took":27,"timed_out":false,"_shards":{"total":1,"successful":1,"skipped":0,"failed":0},"hits":{"total":{"value":1,"relation":"eq"},"max_score":1.0,"hits":[{"_index":"search_job","_type":"_doc","_id":"0","_score":1.0,"_source":{"pref":"\u6771\u4eac0","employment":"full-time","line":{"name":"\u5c71\u624b\u7dda","station":["\u6771\u4eac"]}}}]}}

body, _ := ioutil.ReadAll(resp.Body)
hoge, _, _ := transform.Bytes(
    unicode.UTF16(unicode.LittleEndian, unicode.IgnoreBOM).NewDecoder(),
    body,
)
fmt.Println(string(hoge))

# コンソール出力
≻潴歯㨢ⰵ琢浩摥潟瑵㨢慦獬ⱥ弢桳牡獤㨢≻潴慴≬ㄺ∬畳捣獥晳汵㨢ⰱ猢敲慬楴湯㨢攢≱ⱽ洢硡獟潣敲㨢⸱ⰰ栢瑩≳嬺≻楟摮硥㨢猢慥捲彨潪≢∬瑟≦∺畜㜶ㄷ畜攴捡∰∬浥汰祯敭瑮㨢昢汵⵬楴敭Ⱒ氢湩≥笺渢浡≥∺畜挵ㄷ畜㈶戴畜搷慤Ⱒ猢慴楴湯㨢≛畜㜶ㄷ畜攴捡崢絽嵽絽

type GetResponse struct {
	Took     int  `json:"took"`
	TimedOut bool `json:"timed_out"`
	Shards   struct {
		Total      int `json:"total"`
		Successful int `json:"successful"`
		Skipped    int `json:"skipped"`
		Failed     int `json:"failed"`
	} `json:"_shards"`
	Hits struct {
		Total struct {
			Value    int    `json:"value"`
			Relation string `json:"relation"`
		} `json:"total"`
		MaxScore float64 `json:"max_score"`
		Hits     []struct {
			Index  string  `json:"_index"`
			Type   string  `json:"_type"`
			ID     string  `json:"_id"`
			Score  float64 `json:"_score"`
			Source struct {
				Pref       string `json:"pref"`
				Employment string `json:"employment"`
				Line       struct {
					Name    string   `json:"name"`
					Station []string `json:"station"`
				} `json:"line"`
			} `json:"_source"`
		} `json:"hits"`
	} `json:"hits"`
}

func main() {
    body, _ := ioutil.ReadAll(resp.Body)
	var getResponse GetResponse
	unmarshalErr := json.Unmarshal(body, &getResponse)
	if unmarshalErr != nil {
		fmt.Println(unmarshalErr)
	}

	for _, hit := range getResponse.Hits.Hits {
		fmt.Println("pref", hit.Source.Pref)
	}
}

# コンソール出力
pref 東京0

t := "\\u6771\\u4eac0"
converted, _ := strconv.Unquote(`"` + t + `"`)
fmt.Println(converted)
# コンソール出力
東京0