I used the "Directory selection" screen template to let the user choose a data directory.
I then used the variable from that location to define a distribution tree root:
The data dir does not get created. Do I need at least one dummy file inside the root?
Installation roots are not created if they do no exist and no files are contained in them. You can add a "Run script" action and set the script to
new File((String)context.getVariable("InstallationDataPath")).mkdirs();
return true;
Related
I am trying to save table as partition using .Q.dpt[hdbroot;.z.d;`tablename].
But it's generating No such file or directory error, but the directory is present.
can you please help me on this.
I have created blank folder to store the data but it's checking for sym file while storing data.
I have created one blank folder and gave that folder path to hdbroot variable, but it's not working.
I could replicate your error by trying to save to a location that doesn't exist on the machine.
q).Q.dpt[`:/does/not/exist;.z.d;`t]
'/does/not/exist/sym. OS reports: No such file or directory
[0] .Q.dpt[`:/does/not/exist;.z.d;`t]
Like I mentioned in my comment, make sure that the hdbroot variable is exactly the location you're expecting. key can help you determine this, here is a quick helper function for you.
q)exists:{"Folder/file ",$[11=abs type key x;"exists";"does not exist"]}
q)exists`:/does/not/exist
"Folder/file does not exist"
q)exists`:/tmp
"Folder/file exists"
In my Scala code I want to create a folder "c:/temp" and then create a file "file.txt" within that folder. I don't want to have to use "c:/temp/file.txt". So, I want to use the relative path of the file to create it within that folder.
Imagine how a human creates a folder and then a file? He creates a folder; goes in the folder, and then creates the file inside that folder. That's what I want to do.
=====
Added the following to make this more clear:
Let's say I created the folder and I have a File object called myFolder that represents that folder. What I want is to be able to do something like myFolder.createFile("file.txt").
val subFile = new File(myFolder, "file.txt")
From the description of the File(File parent, String child) constructor found at the docs page:
Creates a new File instance from a parent abstract pathname and a child pathname string.
I m trying to create a virtual folder inside a folder in eclipse. I want to link some files to this virtual folder but I m not able to link.
Below is the sample code:
IFolder folder = modelFolder.getFolder("Script_include");
folder.create(IResource.VIRTUAL, false, null);
IPath newLocation = new Path("/Users/dinesh.lodhi");
folder.createLink(newLocation, IResource.NONE, null);
What I exactly want is to create some virtual folders inside one of the folder at the startup of my plugin and want to link some of resources into it.
The given path must be either an absolute file system path, or a relative path whose first segment is the name of a workspace path variable.
I was mistakenly using folder.getFullPath() for getting location.
and one more thing there is no need to
folder.create(IResource.VIRTUAL, false, null);
as createLink() method itself Creates a new file/folder resource as a member of this handle's parent resource.
Thanks
hello evryone
wanna load file from a specific path writen in an edit box named by 'Load_text', i got the path from the edit box using :
pth=get(handles.Load_text,'string');
then i used 'dir' as follow:
S=dir(fullfile([pth '*.bmp']));
that what cause me an errur . so any ideas ?
If you want to load a file then why you are using dir?
Since you have the file's name, then you can create the fullpath as you do with the fullpath method and check its existence with exists.
If the file exists, then you can load it with all available methods from MATLAB.
Keep in mind that this means that the file is in the same directory as your GUI files. If it is in another then you will have to add it in the fullpath call.
fullpath online doc: http://www.mathworks.com/help/matlab/ref/fullfile.html
exists online doc: http://www.mathworks.com/help/matlab/ref/exist.html
I have an Eclipse product which uses my own plugins. I want to read some properties based on user inputs. I want to persist these properties on some user action, and read those properties back when required. Can this be achieved using some Eclipse API?
A more elaborate description of the above problem:
Say I have a property abc=xyz in a config file myconfig.ini. This property is read by the perspective during the bootstrapping process. During use of the perspective, some action sets this property to a new value xyz=def. Now, I should be able to save the new value in myconfig.ini. So next time the bootstrapping happens, the value of xyz is read as def instead of abc. However, I can also choose to manually set it to abc by editing the myconfig.ini file.
How would I manage myconfig.ini? Where should it exist within my eclipse product project?
What is the best API to manage reading, writing and updating properties in myconfig.ini?
You can use resource markers mechanism:
IMarker marker = file.createMarker(IMarker.MARKER);
marker.setAttribute(IMarker.MESSAGE, "blabla");
marker.setAttribute("attr", 5);
You can search for markers by using the findMarkers methods on IResource.
See FAQ also
You should consider using the apache configurations API http://commons.apache.org/proper/commons-configuration/
It can read and write INI files and if you want to change the configuration file type or add more configuration options you can simply configure it.
I would add a hidden directory to the workspace root e.g. ${WORKSPACE}/.productName/product.ini
and add an ISaveParticipant that ensures the ini file gets updated on shutdown.
You can get the Workspace using the ResourcesPlugin
IWorkspace workspace = ResourcesPlugin.getWorkspace();
and resolve it to an absolute path
IWorkspaceRoot wsRoot = workspace.getRoot();
IPath wsPath = wsRoot.getRawLocation();
IPath absoluteWsPath = wsPath.makeAbsolute();