jsl | JSON based logic programming library for embedded use | JSON Processing library
kandi X-RAY | jsl Summary
kandi X-RAY | jsl Summary
JSL is a JSON based logic programming library. It is meant to be used as an embedded rules engine in JS applications. We introduce JSL with a simple object unification example that produces a contract out of a matching bid and offer. The bid and offer records are the same except that they both leave one of bidder / offerer as variables (indicated by string values which start with '$'). We use JSL to unify these two objects and produce a merged object with the same keys and all variables instantiated. The example shows some important characteristics of JSL.
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Top functions reviewed by kandi - BETA
- Concatenate an array and string
- Validates an object
- Validates a JSON object
- get formula from object
- Match two arguments
- Makes an iterator function
- Validate an item
- Returns new typed objects .
- Validate a fact .
- Initialize a new CheckResult object .
jsl Key Features
jsl Examples and Code Snippets
Community Discussions
Trending Discussions on jsl
QUESTION
I have a simple groovy script that leverages the GPars library's withPool functionality to launch HTTP GET requests to two internal API endpoints in parallel.
The script runs fine locally, both directly as well as a docker container.
When I deploy it as a Kubernetes Job (in our internal EKS cluster: 1.20), it runs there as well, but the moment it hits the first withPool call, I see a giant thread dump, but the execution continues, and completes successfully.
NOTE: Containers in our cluster run with the following pod security context:
...ANSWER
Answered 2022-Mar-28 at 16:25For posterity, answering my own question here.
The issue turned out to be this log4j2 JVM hot-patch that we're currently leveraging to fix the recent log4j2 vulnerability. This agent (running as a DaemonSet) patches all running JVMs in all our k8s clusters.
This, somehow, causes my OpenJDK 17 based app to thread dump. I found the same issue with an ElasticSearch 8.1.0 deployment as well (also uses a pre-packaged OpenJDK 17). This one is a service, so I could see a thread dump happening pretty much every half hour! Interestingly, there are other JVM services (and some SOLR 8 deployments) that don't have this issue 🤷🏽♂️.
Anyway, I worked with our devops team to temporarily exclude the node that deployment was running on, and lo and behold, the thread dumps disappeared!
Balance in the universe has been restored 🧘🏻♂️.
QUESTION
I run JMP 15.2.0 and my jsl script includes this section of code, which has a minor bug:
...ANSWER
Answered 2021-Aug-19 at 04:53Current data table(dt);
for each row(dt,
if (: ColumnA == 99, :ColumnA = .););
QUESTION
I have obtained html page source code and then parsed it using 'html5lib' with BeautifulSoup.
I have got something like this:
...ANSWER
Answered 2021-Dec-08 at 23:34According to your question, I use split() method to get the desired output.
scriptQUESTION
I'm having a dataframe and trying to get the output which shows percentage of each value in different category. Can anyone help on how can I do it?
Raw data table:
Interface_Bin Product 1 ADL 1 ADL 22 ADL 97 ADL 1 JSL 1 JSL 97 JSL 97 JSL 22 JSLExpected outcome:
Product Bin(97)_count Total_interfacebin_count Bin_97_percentage_vs total count ADL 1 4 25% JSL 2 5 40%Thanks alot.
...ANSWER
Answered 2021-Nov-22 at 13:47first sort the data so you get a dictionary (or list) like: {"ADL":121,"JSL":218} probably with code like
QUESTION
For a personnal data science project I would like to scrape the data of google maps. I'm doing that using python and selenium and I'm facing an weird issue, I'm only able to extract 6 results of each page (a page can contains till 20 results).
I share with you what I've done so far :
...ANSWER
Answered 2021-Nov-07 at 16:05no you do an error, you dont have 20 records at max by page, you'll see that if you count the number of records print(len(entries)), you'll have 7 or 9 records
the reason is easy to understand, google maps updates the number of searches if you scroll down and in this case, you'll have all records (> 20 because some enterprises always appears at the beginning , they have paid to be on the top)
hope that helps you to investigate more and change your coding
i have done a little video available 2 days
download it for better quality : googlemaps probme
QUESTION
May I know how to solve the following error? I run the spring batch based on the example in https://docs.spring.io/spring-batch/docs/4.3.x/reference/html/jsr-352.html#jsr-352.
...ANSWER
Answered 2021-Aug-25 at 08:30This error means that your application is not able to find the class org.apache.commons.dbcp2.BasicDataSource in your classpath.
You need to add the jar that contains that class to your classpath. If you use Maven, adding the following dependency to your pom.xml file should solve the issue:
QUESTION
I am new to Spring Batch and Job Specification Language (JSL). I am looking for some example/guide developing spring batch project using JSL. Can recommend me some sites or books for me to read?
...ANSWER
Answered 2021-Aug-23 at 07:57A good starting point would the section from the reference documentation about JSR-352: https://docs.spring.io/spring-batch/docs/4.3.x/reference/html/jsr-352.html#jsr-352. There is a toggle at the top of the page that allows you to choose how to show samples (in either XML of Java configuration). You can also find samples here: https://github.com/spring-projects/spring-batch/tree/main/spring-batch-samples.
QUESTION
I noticed JSL scripts get executed only on Jenkins Master, is it possible to run JSL script on Jenkins Agents?
I have multiple stages in my Pipeline and I wish to run those stages on different Jenkins Agent nodes.
My primary motivation for using JSL is end-to-end Pipeline testability during development with "replay", where I can modify Jenkinsfile as well as scripts from JSL.
This is a snippet of my Pipeline --
...ANSWER
Answered 2021-Jul-13 at 04:54Yes you can execute on different agents for differemt stages by using agent{label }. You also need to ensure that your shared-library is present in the agent also.
Note: everything will be executed on that agent in that stage
QUESTION
Scraping Google Maps reviews. How can I break out of the while loop when it reaches the end of the reviews? Where am I making the mistake?
ANSWER
Answered 2021-Jul-15 at 17:41I am guessing that you want to exit out of the while loop here:
QUESTION
ITU T.81 states the following:
B.1.1.2 Markers Markers serve to identify the various structural parts of the compressed data formats. Most markers start marker segments containing a related group of parameters; some markers stand alone. All markers are assigned two-byte codes: an X’FF’ byte followed by a byte which is not equal to 0 or X’FF’ (see Table B.1). Any marker may optionally be preceded by any number of fill bytes, which are bytes assigned code X’FF’. NOTE – Because of this special code-assignment structure, markers make it possible for a decoder to parse the compressed data and locate its various parts without having to decode other segments of image data. "
B.1.1.5 Entropy-coded data segments An entropy-coded data segment contains the output of an entropy-coding procedure. It consists of an integer number of bytes, whether the entropy-coding procedure used is Huffman or arithmetic.
NOTES
(1) Making entropy-coded segments an integer number of bytes is performed as follows: for Huffman coding, 1-bits are used, if necessary, to pad the end of the compressed data to complete the final byte of a segment. For arithmetic coding, byte alignment is performed in the procedure which terminates the entropy-coded segment (see D.1.8).
(2) In order to ensure that a marker does not occur within an entropy-coded segment, any X’FF’ byte generated by either a Huffman or arithmetic encoder, or an X’FF’ byte that was generated by the padding of 1-bits described in NOTE 1 above, is followed by a “stuffed” zero byte (see D.1.6 and F.1.2.3).
And in many other places where well known Stuff_0() function is also named.
Not sure where standard ITU T.87 stands in regard to the encoding escape sequence 0xFF 0x00 specified by standard ITU T.81:
- Standard ITU T.87 it self that do not specify this but expects it. Where Standard test samples are incorrectly formed, clearly do not have encoding escape sequence 0xFF 0x00 in encoded streams. For example 0xFF 0x7F, 0xFF 0x2F, and other sequences can be found in encoded streams of .jsl test samples : namelly "T8C0E3.JLS". And no one saw it all these years;
- Or if Standard ITU T.87 actually overrides the ITU T.81 regarding this rule for encoded streams and doesn't allow encoding of escape sequence;
In decoder we could make logic to detect decoder errors when 0xFF and !0x00 is to actually use that byte and not skip it if component is not fully decoded. But what if jls file do not have escape sequence and we encounter 0xFF 0x00 sequence should we skip 0x00 byte or not?
Would like some clarification on subject of standard ITU T.87 JPEG-LS encoding, and what is the correct procedure. Should we, or shouldn't we, encode escape sequnce 0xFF 0x00 in encoded streams?
...ANSWER
Answered 2021-Jun-09 at 23:32The answer : ITU T.87 - ANNEX A - point A1 - pass 3
Marker segments are inserted in the data stream as specified in Annex D. In order to provide for easy detection of marker segments, a single byte with the value X'FF' in a coded image data segment shall be followed with the insertion of a single bit '0'. This inserted bit shall occupy the most significant bit of the next byte. If the X'FF' byte is followed by a single bit '1', then the decoder shall treat the byte which follows as the second byte of a marker, and process it in accordance with Annex C. If a '0' bit was inserted by the encoder, the decoder shall discard the inserted bit, which does not form part of the data stream to be decoded.
NOTE 2 – This marker segment detection procedure differs from the one specified in CCITT Rec. T.81 | ISO/IEC 10918-1.
JPEG-LS T.87 overrides T.81 JPEG Standard for encoded data stream to have byte 0xFF followed by byte with value between 0x00 and 0x7F (inclusive).
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