I am writing a plugin for Pig files. I would like to retrieve the Eclipse "file associations" preference - the one under General -> Editors -> File Associations -> File Types / Associated Editors.
Once I have this preference, my plugin can know which file types are being used, and act accordingly when iterating over the workspace files (in searches and the like).
I couldn't find a "directory" of preferences anywhere, nor an API that I could iterate over until I found it. Searching the file system of my workspace didn't seem to work either - possibly the preferences are being held in a binary format.
1) What is the key for retrieving this preference from the PreferenceStore?
2) What is the best way, in general, for finding the key for a given preference?
Use
IFileEditorMapping[] mapping = PlatformUI.getWorkbench().getEditorRegistry().getFileEditorMappings();
to get the mappings between file types and their supported editors. Look at this javadoc to see everything you could ever want to know about the mappings
I'll try to give you some hint, someone may have a better solution :
1 : id org.eclipse.ui.preferencePages.ContentTypes
2 : Use the Plug-ins Spy Press Alt-Shift-F1 on the desire page/widget on eclipse, it will display contextual informations
There is no overall API which will give you all the preferences.
Many preferences are stored in the workspace .metadata/.plugins/org.eclipse.core.runtime/.settings directory in 'plugin-id.prefs' files (Java Property file format). You can access these with
IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode("plugin id");
String value = prefs.get("preference id", defaultValue);
So you need to know the id of the plugin that owns the preference and the id of the preference itself. This information can be difficult to find and may involve reading the source of the preference page.
Other preferences are stored in the Eclipse configuration directory. Yet others are in some format only known to a particular plugin (but there is usually some API to access the information).
Related
I would like a user to drop a file into a smart folder, have an aspect attached to it, and have the file stored in a folder in a different location.
I have followed the smart folders tutorial, and read the "Smart Folder Template syntax" page (here https://docs.alfresco.com/5.2/concepts/sf-ref-template-guidance.html). The examples I have found only ever show "%ACTUAL_PATH%" as the value for the path property.
What alternative values are possible for the path property of the filing rule? In the following example folder hierarchy, a user would drop a file into "General" and we would like the file stored in "Approved".
Example structure is:
Documents
-> Approved
-> Archived
-> Incoming
-> -> General (a smart folder)
I appreciate any help with this
You can use:
1) XPAth
"/app:company_home/cm:Docments/cm:Approved"
2) You can drop to any other folder with rule on it, to specify more complicated logic to sort created files
In Eclipse, I'm aware of the Preference setting for the number of recently opened files to offer:
For users of my RCP application I'd like to change the default length from 4 to 10.
I'm aware of the PreferenceManager, and can navigate to the correct node using this:
IPreferenceNode editorPrefs = preferenceManager.find
("/org.eclipse.ui.preferencePages.Workbench/org.eclipse.ui.preferencePages.Editors");
But, once I've found the node, I can't see how to access the specific property, in order to modify a value.
Anyone one done this before? Any tips?
Alternatively, I'm happy to do it via extension-point, but I couldn't get even this far via that mechanism.
This preference is set in the preferences for the org.eclipse.ui.workbench plugin. You can access this using ScopedPreferenceStore
IPreferenceStore store = new ScopedPreferenceStore(InstanceScope.INSTANCE, "org.eclipse.ui.workbench");
The key for recent files is RECENT_FILES so:
store.setValue("RECENT_FILES", value);
You may need to call the save() method to store the changes.
Note: it should also be possible [1] to update the preference from the .ini file. But it didn't work for me.
[1] https://bugs.eclipse.org/bugs/show_bug.cgi?id=128411#c2
As I searching something with Bing and I open the Chrome development tools. Here is the request url:
http://cn.bing.com/search?q=%e4%b9%a0%e8%bf%91%e5%b9%b3&go=%e6%8f%90%e4%ba%a4&qs=n&pq=%e4%b9%a0%e8%bf%91%e5%b9%b3&sc=6-6&sp=-1&sk=&cvid=AF49B4165317411D8AFEF30F13BCD108&first=10&FORM=PERE
So, what does the parameter "cvid" stands for? It seems if i don't set a cvid,i can't get the complete result html in my program.
By the way, the cvid is calculated by the browser automaticlly, so how to calculate?
In the Bing search context, cvid represents the JavaScript parameter ConversationId. Bing uses this key to identify your search result collection as its reply to your query, q. Similarly, pq is PartialQuery. These and other parameters may also apply to different kinds of searches, such as image or video searches.
Next, qs is your query's SuggestionType, sc shows your SuggestionCount, and from the suggestion list (dropped down, if enabled), sp shows the SuggestionPosition you chose. In your case, you did not select a suggestion, so &sp=-1. Toward the end of your string, sk is the SkipValue, because you might skip through your result pages, first tells the issuer how many results belong on the first page, and I'll let you figure out what FORM means. ;)
TRY:
Navigate to Bing, conduct a search, choose some options, change your displays, and change some search types. Next, open file explorer and navigate to your Windows OS equivalent of the following path.
C:\Users\{user}\AppData\Local\Microsoft\Windows
Next, you may need to adjust your View temporarily to "Show hidden files, folders, and drives." View tab > Options > Change... > View tab again, and click the bullet to "Show...".
In File Explorer's Search pane at the upper right, enter *.js to find all JavaScript files. It may point you several subfolders deeper, and the folder names may be hashed. Choose a JavaScript file you find interesting, right-click the file, and open it with Notepad, your favorite IDE, or some similar editor. You should see something akin to this (truncated; may not run independently):
var AutoSuggest,__extends,Bing,sa_inst;(function(n){var t;(function(n){var t,i,r,u,f,e;(function(n){n.User="SRCHHPGUSR"})(t=n.CookieNames||(n.CookieNames={})),function(n){n.AutoSuggest="AS"}(i=n.CrumbNames||(n.CrumbNames={})),function(n){n.CursorPosition="cp";n.ConversationId="cvid";n.SuggestionCount="sc";n.PartialQuery="pq";n.SuggestionPosition="sp";n.SuggestionType="qs";n.PreviewPaneSuggestionType="qsc";n.SkipValue="sk";n.PreviewPaneSkipValue="skc";n.Ghosting="ghc";n.Css="css";n.Count="count";n.DataSet="ds";n.SessionId="sid";n.TimeStamp="qt";n.Query="q";n.ImpressionGuid="ig";n.QFQuery="qry";n.BaseQuery="bq";n.FormCode="form";n.HashedMuid="nclid";n.RequestElToken="elvr";n.ElTokenValue="elv";n.AppId="appid";n.History="history";n.NoHistory="nohs";n.ApiTextDecoration="textdecorations";n.ClientId="clientid";n.Market="mkt";n.Scope="scope";n.CountryCode="cc";n.HomeGeographicRegion="hgr";n.SetLang="setlang";n.ZeroInputSerp="zis"}(r=n.QueryParams||(n.QueryParams={}))
I hope that helps someone! :D
I'm also trying to find out what this is :)
I'm pretty sure it's an encryption mechanism for bing a la public key cryptography, though I could be wildly wrong. There is another field called pq - and p's and q's are used a lot in crypto theory.
The field is 32 nibbles (e.g. 8D0E519A91024A08B075654D006C0A14) which equals 128 bits. This number results in some arithmetic operation with the binary value of your search and bing's private key - thus making url generation quite difficult.
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();
I've built an eclipse-based product, and I want to set the default workspace used by the Product. Currently, when the "Workspace Launcher" pops up for the first time, the default workspace location is just in the same directory as the Eclipse Product executable. I'd like to change to something like USER_HOME/myworkspace.
I can't seem to find a setting for this, but I'm guessing / hoping its a setting in my product_configuration.ini.
Cheers!
here is a more easy way
Once you have Eclipse up and running you can open Window-->Preferences-->Editors-->Startup and Shutdown. Click the first box that says Prompt for workspace on startup.
Or In your config.ini file ull've this line (or look in configuration.settings\org.eclipse.ui.ide.prefs)
//The default workspace location
Osgi.instance.area.default=#user.home/workspace
try changing this
Here is what needs to be done.
Wherever eclipse is installed go to the "configuration" directory and open the config.ini file in there.
Windows paths normally look like this:
C:\Users\Wilbert\Documents\Installers\Eclipse\eclipse
You will probably find something like this in the config.ini file:
osgi.instance.area.default=#user.home/workingspace
You need to change that to[Getting rid of the "#" and using forward slashes instead of back slash]:
osgi.instance.area.default=C:/Users/Wilbert/Documents/Programs/CS111B(Java)/Practice Programs/Projects
I just did it and it worked.
In your product (.product), go to the "Configuration" tab. Under the "Properties" section, add the property 'osgi.instance.area.default' with a value of '#user.home/myworkspace'. When you export your product, this property will be automatically added to your product's configuration file (just as ayush and Wilbert Sequeira were manually doing).
Note that only an exported product will use that configuration. When running your product in the Eclipse IDE, the workspace location will be overridden by your IDE's configurations.
The now-defunct Symbian WRT product did this. Looking through the sources, it seems to be done by a p2.inf file in the product package. See the screenshot below:
The first yellow arrow is for Windows and the second for Mac and Linux
In your .product file you can specify this as part of the programArgs element.
<programArgs>-data #user.home/MyWorkspace</programArgs>
Note that you can customize config.ini for individual platforms in the product descriptor (*.product) editor. But it never worked for me - hence that hack using P2. It may be working now as I was working with either 3.5 or early 3.6 when I last tried it.
Have a look at the following tutorial: http://hexapixel.com/2009/01/12/rcp-workspaces.
You said in your comment to the question "I just want to prepopulate the selector window with a certain default location".
You can do just that in PickWorkspaceDialog's (from the tutorial) getWorkspacePathSuggestion() method:
private String getWorkspacePathSuggestion() {
StringBuffer buf = new StringBuffer();
String uHome = System.getProperty("user.home");
if (uHome == null) {
uHome = "c:" + File.separator + "temp";
}
buf.append(uHome);
buf.append(File.separator);
buf.append("My App Name");
buf.append("_Workspace");
return buf.toString();
}
For this to work, you do have to create your own dialog though, and I can't tell if that's an option from your question...
In your .product file within the block add:
<property name="osgi.instance.area.default" value="#user.home/workspace" />
And when you build your product, the default config.ini will have this property set.
Details are in the Eclipse docs regarding the various variables.
To set the workspace location programmatically, use:
Platform.getInstanceLocation().set(new URL(...));