Dimmer HTTP Binding plus setting

Klaus_Schuster · December 16, 2017, 10:20pm

Hi!

I want to have to my Dimmer with an slider and percentuage shown on my gui, next to an lamp.
Tried:

Dimmer Dimmer_EG_EZNord "Esszimmer Nord: [%d %%]" (EG) { http="<[beckhoff:2000:JSONPATH($.DimmEZNord)]" }

Sitemap:

Frame label="Etagen" {
        Group item=EG label="Erdgeschoß" icon="groundfloor"

it works. shows me the actual Dimmer value and the percentuage:

I want: possibility to change the dimmer value with the slider!
I wrote an webservice for accessing and dimming the percentuage:
beckhoffURL/write?value=40 (for example to set dimmer to value 40).
how can that be done?

Udo_Hartmann · December 17, 2017, 4:17pm

You did only define the receiving (inbound, <) of messages, but not the transmitting (outbound, >)
So try something like this:

Dimmer Dimmer_EG_EZNord "Esszimmer Nord: [%d %%]" (EG) { http="<[beckhoff:2000:JSONPATH($.DimmEZNord)] >[*:PUT:beckhoffURL/write?value=%2$s]" }

Not sure about %2$s, it’s maybe %1$s…

Klaus_Schuster · December 18, 2017, 7:24pm

sorry does not work…
receiving the following in apache log:

127.0.0.1 - admin [18/Dec/2017:20:23:29 +0100] "POST /write?value=%2$s HTTP/1.1" 200 1754 "-" "Jakarta Commons-HttpClient/3.1"

tested with PUT and POST and %1$s and %2$s

Udo_Hartmann · December 18, 2017, 8:30pm

POST will use another definition:

Dimmer Dimmer_EG_EZNord "Esszimmer Nord: [%d %%]" (EG) { http="<[beckhoff:2000:JSONPATH($.DimmEZNord)] >[*:POST:beckhoffURL/write:default]" }

I’m not sure if this will work either. Take a look at http://docs.openhab.org/addons/bindings/http1/readme.html

Klaus_Schuster · December 19, 2017, 8:19pm

thanks for your help. I just got it working with GET:

Dimmer Dimmer_EG_EZNord "Esszimmer Nord: [%d %%]" (EG) { http="<[beckhoff:2000:JSONPATH($.DimmerEZNord)] >[*:GET:https://write.php?dimmer_ez_nord=%2$s{Authorization=Basic xyz}]" }

only problem: I had to enable format in paper UI http settings. After doing this, I got an error in loop:

2017-12-19 21:14:20.043 [ERROR] [b.core.service.AbstractActiveService] - Error while executing background thread HTTP Refresh Service
java.lang.NullPointerException: null
        at java.util.regex.Matcher.getTextLength(Matcher.java:1283) [?:?]
        at java.util.regex.Matcher.reset(Matcher.java:309) [?:?]
        at java.util.regex.Matcher.<init>(Matcher.java:229) [?:?]
        at java.util.regex.Pattern.matcher(Pattern.java:1093) [?:?]
        at org.openhab.io.net.http.HttpUtil.extractCredentials(HttpUtil.java:278) [219:org.openhab.core.compat1x:2.2.0]
        at org.openhab.io.net.http.HttpUtil.executeUrl(HttpUtil.java:181) [219:org.openhab.core.compat1x:2.2.0]
        at org.openhab.io.net.http.HttpUtil.executeUrl(HttpUtil.java:130) [219:org.openhab.core.compat1x:2.2.0]
        at org.openhab.binding.http.internal.HttpBinding.getCacheData(HttpBinding.java:423) [215:org.openhab.binding.http:1.11.0]
        at org.openhab.binding.http.internal.HttpBinding.execute(HttpBinding.java:169) [215:org.openhab.binding.http:1.11.0]
        at org.openhab.core.binding.AbstractActiveBinding$BindingActiveService.execute(AbstractActiveBinding.java:144) [219:org.openhab.core.compat1x:2.2.0]
        at org.openhab.core.service.AbstractActiveService$RefreshThread.run(AbstractActiveService.java:166) [219:org.openhab.core.compat1x:2.2.0]
2017-12-19 21:14:21.060 [ERROR] [b.core.service.AbstractActiveService] - Error while executing background thread HTTP Refresh Service

editing http.cfg (comment out format= ) all worked.

Udo_Hartmann · December 20, 2017, 10:04pm

http is an OH1 binding, there is no Paper UI setting for this binding?!?

Took a look at Paper UI, in fact there is a configuration option for http.

Just a guess… I think you can only use the paper UI option if leaveing the http.cfg untouched at all (and as you defined a http cache…)

Klaus_Schuster · December 21, 2017, 5:09am

hi!
that could be the answer! since changing paper UI http settings, I get errors when saving http.cfg (Showing 5000.0 NumberFormatException but I did not configure any value with 5000.
thanks,

Klaus_Schuster · December 21, 2017, 6:23pm

solved, solution here: HTTP Binding http.cfg error

orc_trial · November 21, 2018, 6:17pm

hi i am trying to get a dimmer working with http binding and an running in to similar issues:

I have included the urls below which i know work. I cant seem to figure out the syntax for the items. The switch (ON /OFF) is working correctly but i am not sure what syntax to use for dimmer.

Thanks in advance. I looked through several topics on the forum on this but its not still not clear to me.

Below are the Urls and items i created in the items files. I kow the urls are correct because when i use them in a browser, they perform the action correctly.

Following item works:
Switch DiningRoomLight “DiningRoom Light” { http=“>[ON:POST:http://192.168.1.30:8688/controller/rest/control/1087/ON] >[OFF:POST:http://192.168.1.30:8688/controller/rest/control/1087/OFF]” }

This one does not:
Dimmer DinningRoomLightValue “DiningRoom Light Value” { http=“>[*:GET:http://192.168.1.30:8688/controller/rest/control/62/%b]” }

Also what should be the syntax for getting the Staus of the switch and dimmer. The urls are as follows:
Switch status:
“http://192.168.1.30:8688/controller/rest/status/588158”,

Dimmer value:
“http://192.168.1.30:8688/controller/rest/status/588157”

also tried the following but no luck:
Dimmer DinningRoomLightValue “Dinning Room Dim: [%d %%]” {http=“>[*:GET:http://192.168.1.30:8688/controller/rest/control/62/%2$s] <[http://192.168.1.30:8688/controller/rest/status/588157]”}

i have some logs attached on this other thread. any guidance will be greatly appreciated

NCO · August 22, 2019, 2:33pm

How can I delete the http binding settings in PaperUI.
There are old and unused entries in it

I cleared cache and tmp, but the entried in PaperUIs http config are still there

rossko57 · August 22, 2019, 3:23pm

You can’t. HTTP is a version 1.x binding configured from http.cfg

Most 1.x bindings will have a cached version http.config hanging around as well. Stop openhab, delete the xxx.config file, restart.

NCO · August 22, 2019, 3:27pm

That’s what I thought as well:
What what about this then:

rossko57 · August 22, 2019, 3:30pm

Does it do the delete you want?

NCO · August 22, 2019, 3:32pm

No, unfortunately not.
I can delete single entries and “safe”.
But after opening it again, they are still there.

rossko57 · August 22, 2019, 3:33pm

Okay, so you can’t use PaperUI

NCO · August 22, 2019, 3:41pm

No, but I also never used PaperUI for setting up http config.

Udo_Hartmann · August 22, 2019, 4:21pm

In fact, afaik you can use Paper UI for configuration if you never configured http through text file.

NCO · August 22, 2019, 4:54pm

Thanks for your reply.
But in the PaperUI config there are several old and obsolete configurations (e.g. with old passwords).

Is there any way to get rid of these and use the http.cfg only?

NCO · August 22, 2019, 5:58pm

I can see all the http entries from PaperUI when I run this in the karaf console:
config:list |grep http

But how to get rid f these?

Udo_Hartmann · August 22, 2019, 6:02pm

As a first step, you have to comment out old parameters (or delete them…)

After openHAB has reread http.cfg, you have to use the karaf console:

openhab-cli console

and after logged in to karaf:

openhab> config:edit org.openhab.http
openhab> config:property-list
   parameter_to_delete.updateInterval = <some_value>
   parameter_to_delete.url =  <some_other_value>
openhab> config:property-delete parameter_to_delete.updateInterval 
openhab> config:property-delete parameter_to_delete.url
openhab> config:update
openhab>

after that step, the parameters should have disappeared