NTP | NTP server clock on ESP32 with built-in OLED display | Date Time Utils library
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QUESTION
I would like to fetch the value based on the keyword mentioned in the rules yaml file. If the keyword in rules.yaml is mentioned as OBJ, it should fetch the value of po_id matching with the same subnet in input & rules yaml file and if the keyword is GRP, then it should fetch the value of pog_id matchign with the same subnet in input & rules yaml file. Expected result as shown below.
Input.yml
...ANSWER
Answered 2022-Mar-23 at 14:01with the same logic: you indicate if you want po_id or pog_id
item
QUESTION
I'm trying to represent NTP timestamps (including the NTP epoch) in C++ using std::chrono
. Therefore, I decided to use a 64-bit unsigned int (unsigned long long
) for the ticks and divide it such that the lowest 28-bit represent the fraction of a second (accepting trunction of 4 bits in comparison to the original standard timestamps), the next 32-bit represent the seconds of an epoch and the highest 4-bit represent the epoch. This means that every tick takes 1 / (2^28 - 1)
seconds.
I now have the following simple implementation:
...ANSWER
Answered 2022-Mar-15 at 17:50Your tick period: 1/268'435'455 is unfortunately both extremely fine and also doesn't lend itself to much of a reduced fraction when your desired conversions are used (i.e. between system_clock::duration
and NTPClock::duration
. This is leading to internal overflow of your unsigned long long
NTPClock::rep
.
For example, on Windows the system_clock
tick period is 1/10,000,000 seconds. The current value of now()
is around 1.6 x 1016. To convert this to NTPClock::duration
you have to compute 1.6 x 1016 times 53,687,091/2,000,000. The first step in that is the value times the numerator of the conversion factor which is about 8 x 1023, which overflows unsigned long long
.
There's a couple of ways to overcome this overflow, and both involve using at least an intermediate representation with a larger range. One could use a 128 bit integral type, but I don't believe that is available on Windows, except perhaps by a 3rd party library. long double
is another option. This might look like:
QUESTION
Here i have a working script which take the relevant values statically by mentioning in the script. I am looking for a solution to dynamically take the values that matches between input.yml file subnetname and rules.yml.
For eg: if there is a new subnet called net1 defined in the input.yml, then the playbook should be able to match the value and update the rules.yml dynamically and no change should be done to the playbook if there is a new subnetname addition in the input.yml.
Playbook
...ANSWER
Answered 2022-Mar-15 at 14:32try this solution:
QUESTION
I am trying to replace the key values in a dict inside a list(here only for the values inside Objectids) with the matching values from another list. Somehow i am only able to replace the 1st value but not iterating the whole list. Here the same key in the input.json will have multiple matching values from the finallist.json and all those values needs to be matched and added to the get the final expected output.
Input.json
...ANSWER
Answered 2022-Mar-08 at 08:05Read the data and create the variables finallist and input
QUESTION
I would like to to get the array name (like DNS_One
, NTP
, etc.), if a particular key value (here cidr
) from an input file matches.
I have tried with the below playbook, but that is causing errors.
Input.yaml:
...ANSWER
Answered 2022-Mar-05 at 11:57You will have to use dict2items
on the elements of your input_var.Stores
list, in order to make it more queryable. You can apply this filter on all the items of the list, with the help of map
.
Then you fall back to what you where trying to do, a selectattr
to fetch the element that correspond to the CIDR of the input item your are currently looping on. On a list, this can be achieved with the help of the contains
test that Ansible provides on top on Jinja builtin tests.
Which ends up in this set_fact
:
QUESTION
I have created a shell script which executes maven command.
The command looks like this:
...ANSWER
Answered 2022-Feb-20 at 15:26It is all about quotes.
QUESTION
I'm trying to click on a radio button in selenium java but it's not clicking.
This is the inspect on the radio button:
...ANSWER
Answered 2022-Feb-19 at 10:23To click on the element you can use either of the following locator strategies:
cssSelector:
QUESTION
I would like to match a particular keyword(destCidr) from abc.yml and input.yml(subnetname) and fetch the pertaining id value from input.yml and create a new JSON. I am trying to get the expected result as mentioned below, but i dont know where i am doing wrong.
abc.yml
...ANSWER
Answered 2022-Feb-16 at 20:45YAML supports anchors and aliases, but this feature does not support the arbitrary placement of placeholders and expressions anywhere in the YAML text. They only work with YAML nodes.
You will need to use a YAML extension library or process this .yml in some programming language to replace these placeholders.
You can find more details in this related question: Use placeholders in yaml.
QUESTION
I am trying to do a SDO_relate
however it is returning an error.
My code:
...ANSWER
Answered 2022-Feb-16 at 08:51There are several aspects here ...
First: the optimizer is free to apply the predicates in any order. In your case, it looks like it applies the spatial filter first, then applies the selector on number of vertices. Which means you get the exception before the test on number of vertices.
That the optimizer does this is natural: changing the order would mean a full table scan to only return the geometries with 4 points or more, then pass the result through the spatial filter. That would be very slow, and the optimizer rightfully prefers using the index first.
There is no mechanism (hints or otherwise) to control this behavior. Using a subquery or a view will not make any difference: the optimizer will flatten the query into a simple one. Possibly a subquery with a NO_MERGE
hint could work: but it would have the above effect of forcing a full table scan and a full pass of all geometries through the spatial filter. Not a good thing.
Second: polygons with less than 4 vertices are incorrect. The simplest polygon is a triangle. It has three points (A-B-C), but all polygons must close, i.e. be encoded as four vertices: A-B-C-A. That is one of the rules defined by the OGC Simple Features for SQL specification. There are others that polygons must adhere to:
- Absence of redundant vertices
- Orientation (counter-clockwise for outer rings, clockwise for inner rings, i.e. holes)
- Absence of self touching rings
- Ordering of the rings (an outer ring must be followed by its inner rings)
Shapes that do not adhere to the rules are invalid. What happens when you use invalid shapes is actually undefined. Depending on the nature of the error and the action you do on this shape (query, measure, buffer, clip, merge ...), you may get any of the following behaviors:
- the error is ignored and you get a correct result
- you get an exception (that is your case)
- you get no error, but the result is incorrect
The worst possible outcome is #3: you cannot trust the results of your application. It may return the wrong area in m2 of a parcel. Or it may say that two adjacent parcels do not overlap, when in reality they do ... This is very bad.
Data quality is of prime importance when manipulating and processing spatial data. Note that errors are generally not visible: most map-mapping tools are resilient enough to still show the shapes, and defects are for the most impossible to detect visually.
The solution is simple: make sure your data is valid. For that you can use the SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT()
. Run it over each shape. It will tell you which shapes are incorrect, and what the error is.
There is also SDO_UTIL.RECTIFY_GEOMETRY()
. This one will attempt to correct the most common errors:
- Removes redundant vertices
- Reorients and re-orders rings
- Corrects some self-orientations
It does not correct the errors you see (less than four points) because it is uncertain of what is actually wrong. You need to look at what those shapes are, and more important where they came from. Then either correct them or remove them.
QUESTION
I would like to fetch/replace a value in the input YAML — abc.yml — from a var file — var.yml — based on the matching id
value (here id
value is 123
) between input file and var file using Jinja2 and create a JSON as expected result.
Jinja2 code:
...ANSWER
Answered 2022-Feb-14 at 19:44You can achieve this with the usage of filters only.
Given the two yaml — abc.yml and var.yml — you provided, using this two tasks:
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