I'm doing design for a project and nothing's been implemented - so I'm still going through the thought process to determine if Core Data is viable for the project.
Here's my query -
I want to create a managed object model using Core Data to represent some server side objects e.g Folder, File, etc....
All the objects (Folder, File etc..) are accessible via XMLRPC APIs that return some well formed XML.
For example, there may be an API called getFolders that can return the following -
<xml>
<folders>
<folder id=1>
<name>Test 123</name>
<files>
<file id=100>
<name>hello.txt</name>
<path>./hello.txt</path>
</file>
...
</files>
</folder>
...
</folders>
Similarly there can be an updateFolders API that operates on an existing folder item and for simplicity lets say it just updates the folder name. The request for it would post something like the following -
<xml>
<method name="updateFolder">
<folder_id="1">
<params>
<param name="folder_name" value="Test"/>
</params>
</method>
I'm trying to figure out -
1. How can I represent folder as a managed object i.e., how do I initialize it from the above XML
2. Once initialized, how can I handle an update to it using the updateFolder API shown above
It seems like the NSPersistentStore such as XMLStoreType point directly to actual XML files that hold the final data. In my case, the XML is simply whats returned from an XMLRPC call and the actual data is stored on a server side DB. Therefore, since the stores are not direct representations of the objects (or where the objects are stored), I was wondering if I should create a custom NSAtomicStore and handle load and save for initialization and update respectively. Here's a link on doing this for a NSAtomicStore -
https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/AtomicStore_Concepts/Articles/asLoading.html#//apple_ref/doc/uid/TP40005298
Please let me know if this makes sense or if there's a better way to handle this.
Have you read through:
http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSXMLParser_Class/Reference/Reference.html
Also check out TBXML:
TBXML is a light-weight XML document parser written in Objective-C designed for use on Apple iPad, iPhone & iPod Touch devices. TBXML aims to provide the fastest possible XML parsing whilst utilising the fewest resources. This requirement for absolute efficiency is achieved at the expense of XML validation and modification. It is not possible to modify and generate valid XML from a TBXML object and no validation is performed whatsoever whilst importing and parsing an XML document.
There is no simple way to do what you ask and Core Data won't make it any easier for you.
I assume you've read the docs - you need to determine a suitable model to represent your remote data locally, manage the interactions between the remote end and the local end, and synchronize the state between the ends. Deciding on and coordinating your synchronization process is the hardest part. I'm not sure whether there is any third-party framework that can automate this process.
Related
In my karate tests i need to write response id's to txt files (or any other file format such as JSON), was wondering if it has any capability to do this, I haven't seen otherwise in the documentation. In the case of no, is there a simple JavaScript function to do so?
Try the karate.write(value, filename) API but we don't encourage it. Also the file will be written only to the current "build" directory which will be target for Maven projects / stand-alone JAR.
value can be any data-type, and Karate will write the bytes (or plain-text) out. There is no built-in support for any other format.
Here is an example.
EDIT: for others coming across this answer in the future the right thing to do is:
don't write files in the first place, you never need to do this, and this question is typically asked by inexperienced folks who for some reason think that the only way to "save" a response before validation is to write it to a file. No, please don't waste your time - and please just match against the response. You can save it (or parts of it) to variables while you make other HTTP requests. And do not write your tests so that scenarios (or features) depend on other scenarios, this is a very bad practice. Also note that by default, Karate will dump all HTTP requests and responses in the log file (typically in target/karate.log) and also in the HTML report.
see if karate.write() works for you as per this answer
write a custom Java (or JS function that uses the JVM) to do what you want using Java interop
Also note that you can use karate.toCsv() to convert JSON into CSV if needed.
My justification for writing to a file is a different one. I am using karate explicitly to implement a mock. I want to expose an endpoint wherein the upstream system will send some basic data through json payload using POST/PUT method and karate will construct the subsequent payload file and stores it the specific folder, and this newly created payload file will be exposed through another GET call.
We are consuming apis returning json in our projects. The json from those api can contain rather large structures which need to be mapped into other large structures (usually json but could be xml or csv rarely).
We used to use dataweave (from Mulesoft) to do that, and if you're not familiar with dataweave, it's pretty good at that sort of mapping. It let's you define a sample input, and while editing the dataweave it shows you a preview of the result in a separate pane.
For some apis we switched to using nodejs (because it offers better control and debugging than Mule, long story). But I'd really like the same mapping experience as dataweave.
So I guess the question is: can I use vscode to define an input file in a directory, a transformation file in javascript and have the resulting mapped output display in a pane which is updated live?
Is there some plugin offering that? Couldn't find it.
My understanding is the following:
You have a mule workflow which needs to read a file(you edited the file in vscode) and execute a server side javascript (nodjs) to transform the file and after the result is obtained, the mapped result will be pushed into a web page ? right ?
All happen under a given mule workflow right? and you are wondering there is any mule connector to do this process ? right ?
In my karate tests i need to write response id's to txt files (or any other file format such as JSON), was wondering if it has any capability to do this, I haven't seen otherwise in the documentation. In the case of no, is there a simple JavaScript function to do so?
Try the karate.write(value, filename) API but we don't encourage it. Also the file will be written only to the current "build" directory which will be target for Maven projects / stand-alone JAR.
value can be any data-type, and Karate will write the bytes (or plain-text) out. There is no built-in support for any other format.
Here is an example.
EDIT: for others coming across this answer in the future the right thing to do is:
don't write files in the first place, you never need to do this, and this question is typically asked by inexperienced folks who for some reason think that the only way to "save" a response before validation is to write it to a file. No, please don't waste your time - and please just match against the response. You can save it (or parts of it) to variables while you make other HTTP requests. And do not write your tests so that scenarios (or features) depend on other scenarios, this is a very bad practice. Also note that by default, Karate will dump all HTTP requests and responses in the log file (typically in target/karate.log) and also in the HTML report.
see if karate.write() works for you as per this answer
write a custom Java (or JS function that uses the JVM) to do what you want using Java interop
Also note that you can use karate.toCsv() to convert JSON into CSV if needed.
My justification for writing to a file is a different one. I am using karate explicitly to implement a mock. I want to expose an endpoint wherein the upstream system will send some basic data through json payload using POST/PUT method and karate will construct the subsequent payload file and stores it the specific folder, and this newly created payload file will be exposed through another GET call.
In COGNOS is there a way to get the definitions (filters, selected fields) from a number of reports in a folder?
I've inherited around 500 reports defined in a folder and they all need to be checked and fixed as they have business errors (not technical errors). If it was possible to get all their definitions in a single extract that would save an enormous amount of time having to click multiple times to get that information from each report one by one.
In ACCESS this can be done with VBA (for query definitions), but I'm not sure if there is a scripting language that can be used with COGNOS to achieve a similar result.
It sounds like you may want to "validate" each of these 500 reports (effectively equivalent to pressing the "validate" button on each individual report if it was open in the authoring studio).
Validation will ensure that a report specification XML is still syntactically correct, references a package which is still present the content store, references only query items from that package which still exist, generates valid SQL vs. the underlying datasource, etc.
If that's what you're looking for, an easy way to do batch validation for all 500 reports would be to use MotioPI (its a free admin tool for Cognos). Here's a short article which walks you through the process:
http://info.motio.com/Blog/bid/70357/Batch-Validation-of-Cognos-Reports
If you're wanting to retrieve the actual report specification (XML) for each of these 500 objects, then you'd need to write a program which utilizes the Cognos SDK to retrieve the specification XML from each of the 500 report objects. After that, you'd need to add logic which examines each of these 500 XML documents, looking for whatever it is you're looking for.
We solved this by exporting the XML of the reports using a SQL query on the content store.
The output is processed with a Python script to convert XML to table layout in CSV format.
This CSV-file can easely be imported in Excel.
You might want to process the reports XML directly in a SQL query with the xmltable function. In our situation this turned out to be a heavy proces we don't want to burden the content store database with. For a small set of reports this is working fine though.
I have a number of XSDs that are part of the enterprise definitions for several services at the client.
I would like to be able to take a single XSD and generate a DDIC structure from it (without the use of PI!)
Seeing as you can generate proxies directly from a WSDL, and this also generates structures and data elements from the XSD definitions inside the WSDL, there is obviously already ABAP code that does this.
But do you know what classes/function modules to use to achieve this? Perhaps there is a convenient utility function or class method that takes the XSD as input and generates the relevant DDIC objects?
Some background on why I need this:
Some of the services include variable sections that include a piece of XML containing the data for one of the enterprise XSD entities; I am hoping to have a DDIC representation of these, which I can fill at runtime and then convert to XML to include in the message.
There is a program on the system called SPROX_XSD2PROXY with which you can upload one or more XSD files which will generate proxy objects for you.
You also end up with a service consumer with a corresponding class and what looks like a dummy operation.
The program is fairly short; it uploads the files(s) to an XSTRING, then converts the XSD(s) to WSDL(s) and finally the WSDL(s) to proxy objects using methods of a class called CL_PROXY_TEST_UTILS.
However, the result is satisfactory as it does give me a structure I can work with. And by examining the contents of those methods, it may be possible to build a more fine-tuned tool if I need one.