I have gateway.properties file and it has following content:
current.path=c:/projects/sdk/
log.path=storage/logs
Here, in this file:
Either, I want to add third variable which is current.log.path and its value must be:
current.log.path=current.path + log.path
Or, I want to append string to current.path variable as below:
current.path=current.path+log.path
I have a situation that I can't do this concatenation/append job in my Java file. In Java its pretty simple but I have no idea how to do within file itself.
There is no built-in mechanism to have something like variables in a property file. You could try Apache Commons Configuration. I think it is what you are looking for.
Related
I have this in a .conf file and I want to overwrite the value at index 0 in array field1
database {
master {
field1:["a","b","c"]
}
}
and I run the application via sbt like this:
sbt -Ddatabase.master.field1.0="11.111.11.111:3306" package
then I look inside the jar at the .conf file and nothing is changed.
This guide indicates to change each array element by index instead of the whole array (which I also tried but to no avail): https://salsa.debian.org/java-team/typesafe-config/blob/master/HOCON.md#array-and-object-concatenation
How do you overwrite array elements in HOCONS?
I think the problem is, that your hocon is part of what you try to pack, but the -D will give the params to the JVM of sbt. Why should the config of the sbt's JVM have any influence to the .jar you pack?
Edit
Adrian taught me, that this is actually possible. Still my solution below is what I would prefer. It is explicit and good to understand. Some params and the sbt call seems to me to not be nice and clean.
I guess you want to have an environment specific database config.
You could start the application with your config as you tried with sbt or put all configs for different systems in different hocons and load the hocons depending on the system you start, which you can define by a parameter for the program.
Look at the docs to see how to load additional files.
My goal is to create (find if exist) a tool which can produce swift files from templates.
For example, let’s say I need to create new ViewController with UITableView. It should be based on MVVM architecture with dependency injection. Let’s name this View “PersonsList”.
So, for this task I need to produce:
PersonListViewController
PersonListViewModel
PersonListViewModelProtocol
PersonCell
VM for cell and protocol for VM
Lots of files.
I want to say to my tool something like that
create tableview-template Person
and as a result get generated files. Files should contain empty implementation of each classes.
How should I do that? I am thinking about simple console app but I don’t know which language I should use. Maybe there is a better idea? Maybe there is a ready tool? Any help? :)
You could manually create the templates yourself and then write a short script (in Python / bash / swift etc) that goes through and replaces keywords with arguments you've passed in.
Let us assume, I want to use a foreign Matlab library with a structure like this:
folderName
play.m
run.m
open.m
If I simply add folderName to my Matlab path variable, it will easily yield name conflicts. I don't want to rename the files, to be able to obtain new releases of the example library (the package concept is not used in the example library). Renaming would need to modify the code as well, if there are calls from one library function to the other.
How do I write local wrappers, which wrap the functions from that example library? My wrappers could then have my desired names and input parameters.
Clarification: How do I use an external library (toolbox) without name conflicts, without renaming and without modifying each function?
Rename files: Makes it hard to update the external library.
Simply put them in a package folder: This will break internal library function calls.
You want to use a package, which will establish a namespace, such that things in the package, are then qualified with the package name. You can find more information here: http://www.mathworks.com/help/matlab/matlab_oop/scoping-classes-with-packages.html
How can I change the location of the compiled scala files. Currently the files are stored in $GATLING_HOME/target/classes.
I thought the option "--simulations-binaries-folder" would do this.
"--simulations-binaries-folder" is used for forcing Gatling to search there for pre-compiled classes.
Check out gatling.conf file for the property named "gatling.core.directory.binaries". You can either override it directly in the file, or pass a System property with this name.
I am used to using (ctrl+click) on Eclipse and following variables/objects to look at the definition in order to understand the code.
I just started my first job and I only have access to unix (vi or gvim). Is it possible to do what I'm looking for?
edit: What I mean by is it possible? Lets say class foo is defined in file foo.hpp and is instantiated in foo.cpp. I want to be able to reach the definition of class foo from any instantiation of it in foo.cpp
With Vim you can use tags files generated by exuberant-ctags and other compatible programs.
"Tags" are function and variables, their name, signature and kind are stored alongside their location in files that Vim is able to parse to allow you to navigate through your code.
:help tags will tell you all you need to know.