[acl_loader] show acl rule counter in command "show acl rule"

[RichardWu-Hebut]

         When showing acl rule, add the ACL rule counter in the
         command output

Signed-off-by: Richard Wu wutong23@baidu.com

- What I did
Enhance "show acl rule" command to show the acl rule counter in the command output
- How I did it
Get the acl rule counter info from COUNTER DB

- How to verify it
Set acl rule, send traffic to match the acl rule, and run the command "show acl rule" to check whether the counter info is correct.

- Previous command output (if the output of a command-line utility has changed)
root@switch2:/usr/lib/python2.7/dist-packages/acl_loader# show acl rule

Table Rule Priority Action Match

---

data-aclv4 ICMP 2000 FORWARD IP_PROTOCOL: 0x01

data-aclv4 IGMP 1900 FORWARD IP_PROTOCOL: 0x02

data-aclv4 ARP 1800 DROP ETHER_TYPE: 0x0806

- New command output (if the output of a command-line utility has changed)
root@switch2:/usr/lib/python2.7/dist-packages/acl_loader# show acl rule

Table Rule Priority Action Match Packets Bytes

---

data-aclv4 ICMP 2000 FORWARD IP_PROTOCOL: 0x01 1000 128000

data-aclv4 IGMP 1900 FORWARD IP_PROTOCOL: 0x02 0 0

data-aclv4 ARP 1800 DROP ETHER_TYPE: 0x0806 0 0

[stcheng]

thanks for adding this

[stcheng]

could you move these two lines to below? right above the part you add the counter querying logic

[RichardWu-Hebut]

Do you mean move those two lines above the "counter_db.get_all", right? If yes, then it will re-create a socket with Redis DB for each ACL rule. IMO, it is not a good way, as we can use just one socket to get the counters for all ACL rules, no need to create connection with Redis DB again and again.