I have created eclipse application using eclipse photon. I can see the native proxies in eclipse but i cannot see them in the application I have created.
Is there any extensions that needs to be added to make the native proxies appear in my application
Edit:
The below image contains the native proxy appearing in eclipse
The same does not appear in my application
A class called org.eclipse.core.net.ProxyProvider provides the native providers - this is loaded using Class.forName by org.eclipse.core.internal.net.ProxyManager.
It looks like this class is provided by a platform specific plug-in fragment, for example org.eclipse.core.net.linux.x86_64 on Linux. So make sure you are including the appropriate fragment in your build.
Related
We are using an Eclipse application, currently developed on Eclipse 3 architecture. We have developed a custom plugin for that application. We are now upgrading this application to a new version that's based on Eclipse 4 architecture. I am tasked with migrating the custom plugin from Eclipse 3 to Eclipse 4 architecture to be used with the upgraded version of the application. I have bit of Eclipse plugin development experience, but migrating from Eclipse 3 to Eclipse 4 architecture is my first. So, excuse me while I explain/ask my questions.
I found one existing question - eclipse rcp 4 - customize workbench. But that question is not answered.
The plugin on Eclipse 3 architecture customizes the workbench, to provide tabs for open and commonly used perspectives (as shown in screenshot), by:
Defined an extension for org.eclipse.core.runtime.applications. Implementation of this extension is in CustomApplication class. CustomApplication class extends the application class from the Eclipse application.
Inside the CustomApplication class, called PlatformUI.createAndRunWorkbench() by passing custom implementation of WorkbenchAdvisor - CustomWorkbenchAdvisor class.
Inside the createWorkbenchWindowAdvisor() method of the CustomWorkbenchAdvisor, created custom WorkbenchWindowAdvisor - CustomWorkbenchWindowAdvisor class.
Inside the createWindowContents() method of the CustomWorkbenchWindowAdvisor, created a custom CustomPerspectiveHeader class to manage those tabs. This class creates tab representation of open & commonly used perspectives. This allows user to switch perspective just by clicking on the tab instead of going through Windows menu. It also provides important information on the perspective header space - such as the user name and group/role that user has logged in. When user clicks on a tab, that perspective opens below.
Eclipse 4 has new mechanism to customize windows layout using application model (via e4xmi file), and createWindowContents() method of the WorkbenchWindowAdvisor is deprecated.
I don't understand how to create/setup/configure e4xmi file for my custom plugin to provide for the Perspective Header space on top of the application UI. I followed tutorial from https://www.vogella.com/ but those tutorials refer to application model in the context of new Eclipse application develipment and not in the context of plugin development for an existing application.
Using application model (e4xmi file) can I just add my plugin workbench changes (the perspective header) on top of what the application provides or do I need to provide the entire workbench layout in my plugin application model?
I am new to GWT and understood the motive behind creating such good framework. However I could not understand how GWT builds the UI and shows while in development mode.
It is said that while bootstrapping .nocache.js file is loaded in the browser, then this file created a hidden iframe. Then depending on browser and language settings a .cache.html file is loaded in the iframe where all application logic resides.
What I could not understand is how gwt does this in development mode/ hosted mode. Because .cache.html files are not available in development mode. I assume that the sdk receives a request from .nocache.js file regarding the browser details and then generates a .cache.html file for that particular browser and that is loaded in the iframe. My question is how .nocache.js file sends a request to sdk to dynamically generate a .cache.html file? Or does it have something to do with hosted.html and the browser plugin? How the UI and RPC code is loaded while in development mode. For nocache.js file to send a request there must be a server program (Servlet) listening to the request and allowing GWt to start looking for entrypoint class and start generating the UI content.
I could not understand how gwt will come to know about the browser settings and generate the UI? Does hosted.html and browser plugin has something to do with the content generation?
I searched using google, but all my trials went useless. Or may be I searched using wrong search keys. Could anyone please tell me or point me to a link where it is clearly explained?
When an application is running in development mode, the Java Virtual Machine (JVM) is actually executing the application code as compiled Java bytecode, using GWT plumbing to connect to a browser window.
As of GWT 2.0, development mode uses a regular browser instead of an embedded browser. You can use any supported browser.
Out of process hosted mode (OOPHM) is an upcoming replacement for GWT hosted mode debugger. OOPHM allows one to use a standard browser (IE, Safari (32bit) and Firefox) for debugging GWT-client-side code.
With OOPHM you can:
do modifications to your widgets with no time consuming Java-to-JavaScript recompilation
set breakpoints to widget code.
use any advanced browser features and extensions not available in conventional hosted mode (Firebug for example).
Useful links:
https://developers.google.com/web-toolkit/doc/latest/DevGuideCompilingAndDebugging
http://code.google.com/p/google-web-toolkit/wiki/DesignOOPHM
http://code.google.com/p/google-web-toolkit/wiki/UsingOOPHM
http://www.slideshare.net/allahbaksh/gwt-generators-and-oophm
Have a nice time.
I have some projects:
WebShared (Java Library project)
WebExternal (GWT Web Application)
WebInternal (GWT Web Application)
I have UI Binder's which are shared between WebExternal and WebInternal, and I organize those under the "WebShared" project.
I am now adding i18n support, and I want to use UI Binder's <ui:msg> tags, and consolidate them using the GWT-P mergelocales.py script.
Mergelocales.py works by running against a GWT app that was GWT compiled using the -extra parameter. Since WebShared is not a GWT app, running the script against it produces no output. Additionally, running mergelocales.py against WebExternal or WebInternal does not produce a file that includes the messages from the WebShared project.
I believe it would work if I converted the WebShared project into a GWT project, but then I would still have two separate properties files to send to the translation service, and I don't want to deal with combining files or managing multiple files.
What is the best way to handle this scenario using the available tools, OR do I need to create my own script?
Thanks in advance for the help.
Solved.
This actually works by default. When the GWT Compiler runs, it generates .property files for the UI Binders that are localized, even if used from a dependent project, and the mergelocales.py script runs against those property files.
I'm working on an eclipse-based application, composed by several plug-ins. One of these plugins performs a computationally-intensive task, hence I want to provide a "native" implementation for some platforms I support. What is the best way to do it?
I was thinking about a base plugin (which provides the default implementation) extended with some fragments (to provide platform-specific implementations). However, how can the base plugin be aware of the available fragments?
You could write a class in your main plugin similar to LocalFileNatives from org.eclipse.core.filesystem. It loads a library that implements its set of native methods. It then provides a facade to the system that uses the native implementation if it is available but has some default functionality for platforms where there are no native implementations.
Then each platform fragment simply provides the appropriate native DLL or .so
There are other options for having the fragment supply a service, that can be retrieved by the host plugin.
Eclipse plugin's are written in Java. So what you need to do is retrieve OS info.
If you scroll to the bottom of this page, you'll see a code that does this.
I'm work in an aplication that need be capable of support plugins, but i dont know how this work.
See Design Pattern for implementing plugins in your application?
The answers tend to get very platform specific. It also depends on how much control of your core app data and logic the plugin must have.
The C++ QT4 book has a good description of adding a file-type plugin to it's architecture, there area also a bunch of modeling apps (openscenegraph, blender, povray ) that have good documentation for their plugin architectures.
You need to design your application's API in such a way that plugins can be created, and you need to add the necessary plugin management interfaces and supporting code to invoke the plugins. There is no catch-all way of managing plugins.
Take a look at the open source application called Rawr (c#). Each addin is a seperate .dll and the main app uses reflection to access the code. Very nicely done.
www.codeplex.com/Rawr