I'm trying to come up with a way to make it easy to switch out our "mock" data services and our live ones. Basically, we'll have live servers with real web services, but for whatever reason, a developer may want to load data from static files (file urls).
I figured I would solve this problem by creating categories that override the methods that fetch the data, thus leaving original code untouched (it has no concept of the "mock" data). I don't want to litter my code with #ifdef.
I can put an #ifdef at the very beginning of each file that has categories in it, and I can set a custom flag in the configuration settings, but I'd rather just have a way to include or exclude the files depending on the configuration. Is that possible? How do you solve this problem?
See http://lists.apple.com/archives/xcode-users/2009/Jun/msg00153.html
The trick is to define EXCLUDED_SOURCE_FILE_NAMES in the configuration you want to exclude the files from, and set the value of that custom build setting to a list of the file names (or a pattern that matches those, and only those, file names).
I would recommend creating two targets one of which has the mock categories included and another one which does not.
When you want to test, just build the target containing the mock categories. Everything else can remain identical.
If you would like to add a file but do not wont to compile it. Go to (for all your targets) project>build phases>compile source and take out the file that you do not want to compile.
Related
I need to implement a custom ResultHandler but I am confused about how to actually integrate my custom class into the software package.
I have read this: http://elki.dbs.ifi.lmu.de/wiki/HowTo/InvokingELKIFromJava but my question is how are you meant to implement a custom result handler such that it shows up in the GUI?
The only way I can think of doing it is by extracting the elki.jar package and manually inserting my custom class into the source code, and then re-jarring the package. However I am fairly sure this is not the way it is meant to be done.
Also, in my resulthandler I need to output all the rows to a single text file with the cluster that each row belongs to displayed. How tips on how I can achieve this?
There are two questions in here.
in order to make your class instantiable by the UIs (both MiniGUI and command line), the classes must implement our Parameterization API. There are essentially two choices to make your class instantiable:
Add a public constructor without parameters (the UI won't know how to set your parameters!)
Add an inner static class Parameterizer that handles parameterization
in order to add your class to autocompletion (dropdown menu), the classes must be discovered by the MiniGUI/CLI/other UIs. ELKI uses two methods of discovery:
for .jar files, it reads the META-INF/elki/interfacename service files. This is a classic service-loader approach; except that we also allow ordering instances.
for directories only, ELKI will also scan for all .class files, and inspect them. This is mostly meant for development time, to avoid having to update the service files all the time. For performance reasons, we do not inspect the contents of .jar files; these are expected to use service files.
You do not need your class to be in the dropdown menu - you can always type the full class name. If this does not work, adding the name to the service file will not help either, but ELKI can either not find the class at all, or cannot instantiate it.
There is also a tutorial on implementing a custom result handler, but it does not discuss how to add it to the menu. In "development mode" - when having a folder with .class files - it will show up automatically.
I want to write my own editor that would allow me to search the whole Assets folder for object type of X and make an AssetBundle from them.
I went through all the manuals and docs and it seems that they all use the Selection class to build the Assets Bundle.
But what if there are 10 000+ objects scattered in different folders and I don't want to select each manually, yet I still want to track their dependencies. Is there a way to do so?
I have already tried editing Selection.objects, but as much as I understand it's limited to one concrete scene.
Is it possible to skip the whole Selection class and just use BuildPipeline.BuildAssetBundle() method? If yes, how to get the correct list of objects that can be used? Do I need to write my own deep threading loop to get the dependencies?
All you need is a list of objects. That's it. How you get them is irrelevant. You can do that with the Selection class, but if you have other means of finding the assets, that's no problem either.
As for dependencies, keep in mind that your final call will be something like:
BuildPipeline.BuildAssetBundle(main_asset, objects_array, path, BuildAssetBundleOptions.CollectDependencies | BuildAssetBundleOptions.CompleteAssets);
See that BuildAssetBundleOptions.CollectDependencies? It will make sure that all the necessary dependencies for the objects you've specified get included as well.
I have a legacy java project that we have been moving to buildr/artifactory from ant/jars in svn.
The primary code is in the default (src/main/java) folder, but we have a few external source paths, for various tests that we can't move into the default folder, but we want to have access with it.
Currently, when adding a new library/regenerating IDE fields, it does not pick up these source paths, and I can't find a succinct discussion in the buildr manual for how to actually add them, rather than re-adding everything manually in eclipse (which just gets wiped out on the next regen).
Any idea how to have multiple source paths get picked up explicitly by buildr so that the idea/eclipse targets generate properly?
There are two ways that I know will work with IDEA. The second one might also work with Eclipse, while the first is specific to the idea task.
The IDEA-specific solution:
define 'proj' do
# ...
iml.main_source_directories << _('src/other')
end
iml also has test_source_directories and excluded_directories arrays you can append to.
The possibly eclipse-compatible solution, with more background than you probably want:
The iml object gets its default values for the main and test source directory arrays from project.compile.sources and project.test.compile.sources (slight simplification; resources are considered also). Buildr defines these .sources project attributes from the layout, so instead of explicitly appending to the iml attributes, you could use a custom layout for your project that includes your special source paths. That might work with the eclipse task, but I haven't tried it.
What does this file hold and how important is it to keep it "correct"?
I've seen people write scripts to just merge any change dealing with it and I've heard others merging it manually every time.
What is the correct way to handle it and why?
The project.pbxproj contains all of the metadata about your project that Xcode uses to build it; the settings, the file references, configuration, targeted platforms, etc...
I.e. it is a critically important.
There really isn't a great answer for this. Typically, teams will avoid conflict by limiting edits to the project to one team member at a time.
The Xcode team has put a lot of effort into making the file merge-friendly. In managing several large projects via svn, I've generally found that the merges are automatic and painless.
Until they aren't. And when they aren't, revert, merge changes by hand (i.e. make the changes in the project that conflicted), and move on.
Try my script xUnique.
What it does:
convert project.pbxproj to JSON format
Iterate all objects in JSON and give every UUID an absolute path, and create a new UUID using MD5 hex digest of the path
All elements in this json object is actually connected as a tree
We give a path attribute to every node of the tree using its unique attribute; this path is the absolute path to the root node,
Apply MD5 hex digest to the path for the node
Replace all old UUIDs with the MD5 hex digest and also remove unused UUIDs that are not in the current node tree and UUIDs in wrong format
Sort the project file inlcuding children, files, PBXFileReference and PBXBuildFile list and remove all duplicated entries in these lists
see sort_pbxproj method in xUnique.py if you want to know the implementation;
It's ported from my modified sort-Xcode-project-file, with some differences in ordering PBXFileReference and PBXBuildFile
With different options, you can use xUnique with more flexibility
I'm currently making good use of GWT's ClientBundles in my app. It works fine, but I have a large number of resources and it becomes tedious to manually create Java interfaces for each file:
#ClientBundle.Source("world_war_ii.txt")
public ExternalTextResource worldWarII();
#ClientBundle.Source("spain.txt")
public ExternalTextResource spain();
#ClientBundle.Source("france.txt")
public ExternalTextResource france();
I'd like to be able to (perhaps at compile time) dynamically list every *.txt file in a given directory, and then have run-time access to them, perhaps as an array ExternalTextResource[], rather than having to explicitly list them in my code. There may be hundreds of such resources, and enumerating them manually as code would be very painful and unmaintainable.
The ClientBundle documentation explicitly says that "to provide a file-system abstraction" is a non-goal, so unfortunately this seems to disallow what I'm trying to do.
What's the best way to deal with a large number of external resources that must be available at run-time? Would a generator help?
There's an automatic generator for CssResource - maybe you could look at its code and modify it to your needs?
I ended up following this advice: perform the file operations on the server, and then return a list of the file (meta)data via an RPC call.
This turns out to be fairly simple, and also allows me to return lightweight references (filenames) in the list, which I use to populate a Tree client-side; when the user clicks on a TreeItem the actual text contents are downloaded.