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What do you do with Eclipse ?

Posted by sureshkrishna on October 7, 2007

Eclipse the ubiquitous platform has survived another challenge by releasing the Europa and the incredible download numbers speak for it. Initially it was perceived as a Java IDE  then Tool development Environment, then RCP  Platform, then Tool Integration Platform and now its an eco-system of platform, application frameworks, tools, runtimes and especially Eclipse is a universal tool platform – an open, extensible IDE for anything, but nothing in particular. The intent of the article is to highlight the different areas of the industry and how eclipse is used by different category of users.

The Eclipse open source community has over 60 open source projects. These projects can be conceptually organized into seven different “pillars” or categories:

  1. Enterprise Development
  2. Embedded and Device Development
  3. Rich Client Platform
  4. Rich Internet Applications
  5. Application Frameworks
  6. Application Lifecycle Management (ALM)
  7. Service Oriented Architecture (SOA)

The list gives a fair understanding of the different areas where eclipse is getting popular and also the business verticals, which can be transformed. It is very interesting to see what eclipse means to different people. Following scenarios give a better understanding of what can be done with eclipse (and the rest are for your imagination…)

Eclipse – Java IDE

As comprehended in early 2000 (even now after the europa release), its a Java IDE with which java developers can create, modify, debug, build the java projects. Eclipse provides different features like code refactoring, syntax highlighting, syntax/code checks, code completion, quick fix, compile/build, team integration with CVS, debug, jarring, etc… In this use-case scenario eclipse is being primarily used as Java IDE. Eclipse + JDT  = Java IDE. Eclipse Platform contains basic UI elements (swt, jface), runtime, help system, debug support, search support and some other IDE elements. Java IDE can be downloaded from Eclipse Site.

Java IDE

Eclipse – Plugin/Tool Development IDE

Along the similar lines of the Java IDE, the C/C++ development tools, PHP development tools, Cobol development tools, etc… have brought fabulous features in the Eclipse eco-system. These development tools not only improved the productivity of the developers but also Myth-Busters for many managers, developers. This gave the real meaning for eclipse, an open, extensible IDE for anything, but nothing in particular. Vendors were successfully able to adopt the Eclipse Platform and build several tools and Language Editors around it. The ground rule of “Everything is a contribution” perfectly fits in this scenario.
PDE (Plugin Development Environment) and JDT (Java Development Tools) are the ones that support and enable this use-case. A plugin can be developed, debugged, deployed with the help of these two tools. PHP Editor Plugin is developed with the help of the PDE and JDT. When a developer is using Eclipse to develop the PHP, it looks as though eclipse is a PHP IDE. In this scenario, the developer might not necessarily know that there is PDE and JDT in the eclipse that has been used. Thus depending on the user and what he is trying to achieve, the perception changes.

Eclipse + Ruby on Rails = RadRails
Eclipse + Ruby on Rails = 3rdRails
Eclipse + JDT = Java IDE
Eclipse + PHP = PHP IDE
Eclipse + CDT = C/C++ IDE
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IDE Framework


Eclipse – RCP

Application development requires a platform to relay upon, where an organization’s software product lines can be built. A Rich Client Platform (RCP) of eclipse uses the windowing and UI features of the underlying OS platform. It enables the application to use the native look-and-feel, native widgets, and all available UI features. In the end users and IT departments wants to have a uniform architecture, look-and-feel over all the applications. Eclipse RCP is considered as the minimal set of plugins that are required to build rich applications. In short if the SDK capabilities and Platform capabilities are removed, the resulting set of plugins would be RCP.
An interesting set of applications can be built with the help of Eclipse RCP.

Few examples from Open Source RCP applications included, but not limited to…

<!–[if !supportLists]–>·        <!–[endif]–>JPMorgan’s Banking application

<!–[if !supportLists]–>·        <!–[endif]–>Maestro – NASA Space Mission Management

<!–[if !supportLists]–>·        <!–[endif]–>GumTree – Australian Nuclear Science and Technology Organization – GumTree is an open source multi-platform scientific workbench for performing scientific experiment under a server-client environment. It provides easy-to-use graphical user interface for instrument data acquisition, online or offline data visualization and analysis.

<!–[if !supportLists]–>·        <!–[endif]–>RSSOwlApplications that collect data from RSS-compliant sites are called RSS readers or “aggregators.” RSSOwl is such an application.

<!–[if !supportLists]–>·        <!–[endif]–>Talend Open Studio 1.0Talend Open Studio is the first ETL open source software provider for data integration tools (ETL: Extract, Transform, Load)

Following are examples for Commercial plugins

<!–[if !supportLists]–>·        <!–[endif]–>Actuate BIRT Report DesignerThe Actuate BIRT Report Designer is a powerful tool for designing and deploying reports against data sources ranging from typical business SQL databases, to XML data sources, to in-memory Java objects.

<!–[if !supportLists]–>·        <!–[endif]–>BSI CRM on EclipseThis customer relationship management (CRM) solution is a fully configured RCP application to support the whole customer contact process from first contact to the successful project implementation and also retention management.

<!–[if !supportLists]–>·        <!–[endif]–>IBM Workplace Client Technology – IBM Workplace Client Technology is a strategic new IBM framework to enable the creation of server-managed rich client applications.

<!–[if !supportLists]–>·        <!–[endif]–>MyEclipse – SNAPs – Lightweight, Individual, Task-Based Developement Tools FREE as Part of the MyEclipse Distribution. MyEclipse SNAPs (Simple Non-integrated Applications) are special-purpose, Windows-integrated applications that are targeted for quick, non-IDE based development tasks.

If required, one can use plugins other than core RCP plugins e.g. one might want to use the help plugins, search plugins etc.

RCP

Eclipse – Tools Framework

Plugins makes eclipse what ever one wants it to be. For the tool integrators, this is a universal platform on which everyone can contribute and extend on. Tool development on Eclipse leverages the existing platform infrastructure to contribute and/or extend the existing functionality.

Many of such tools that are popular are like

<!–[if !supportLists]–>·        <!–[endif]–>Web Tools Project (WTP)

<!–[if !supportLists]–>·        <!–[endif]–>Eclipse Modeling Framework (EMF)

<!–[if !supportLists]–>·        <!–[endif]–>Graphical Editing Framework (GEF)

<!–[if !supportLists]–>·        <!–[endif]–>Business Intelligence and Reporting Tools (BIRT)

<!–[if !supportLists]–>·        <!–[endif]–>Test and Performance Tooling Project (TPTP)

<!–[if !supportLists]–>·        <!–[endif]–>Aptana Web2.0 IDE

<!–[if !supportLists]–>·        <!–[endif]–>MyEclipse

Tool Framework

Eclipse – Application Framework

For enterprises it makes sense to have a single application framework so that all the tools and frameworks can be built upon. Individuals and enterprises can leverage frameworks and tools provided by the eclipse eco-system and also benefit from the different release time lines of eclipse. One of the examples is to be able to create the entire development life cycle of a complex engineering activity flow of an organization in to the eclipse. Various development stages like, system requirements, software requirements, component design, function design, coding, unit testing, integration testing, system testing, delivery and finally the Issue Tracking can be integrated into Eclipse. On the technical level this transforms to writing new tools/plugins if necessary, using plugins from 3rd party vendors, using the tools and frameworks from eclipse community and finally completing the maze by integration.

Genuitec is one of the companies that extensively use the Eclipse platform and other frameworks on the eclipse to have a set of seamless integration of tools.

Innopract based its products like Yoxos and RAP on the eclipse platform.

Application Framework

Summary
Eclipse is an IDE and application framework for anything and nothing in particular. It totally depends on the user/developer’s perception and what is targeted to achieve with the help of eclipse. With the contribution rules of eclipse and platform architecture, its easy to contribute ones own functionality and/or extend the eclipse.

References :
1) Eclipse Platform Overview http://www.eclipse.org/platform/overview.php
2) Eclipse House Rules http://udig.refractions.net/help/index.jsp?topic=/net.refractions.udig.doc/html/Eclipse%20House%20Rules.html
3) Eclipse RCP Applications http://www.eclipse.org/community/example_rcp_applications_v2.pdf

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Posted in Eclipse, EMF, Java, JFace, Plug-ins, Plugin | Tagged: , , , | 2 Comments »

PShelf Widget in Eclipse

Posted by sureshkrishna on December 21, 2006

PShelf Widget is really cool, if you want to implement a kind of Accordion widget in Eclipse. The Accordion widget is been gaining popularity in the end user community, especially with the AJAX and SOA presence.

Currently for simple implementations it looks quite stable. I had no problems till now. I have no idea when this project nebula is going to get integrated, but i am looking forward to it.

One good thing about this widget is that we can increase or decrease the time delay in the shelf roll-out. It also gives a very smooth transition from shelf to shelf. Can be very easily embedded into a View.

I am just adding a small snippet for the PShelf usage in a View. Hope this helps. Also this widget library it self is very very small, so you can include it very easily.


public void createPartControl(Composite parent) {
/* Create a grid layout object so the text and treeviewer
* are layed out the way I want. */
GridLayout layout = new GridLayout();
layout.numColumns = 1;
layout.verticalSpacing = 2;
layout.marginWidth = 0;
layout.marginHeight = 2;
parent.setLayout(layout);
text = new Text(parent, SWT.READ_ONLY | SWT.SINGLE | SWT.BORDER);
// layout the text field above the treeviewer
GridData layoutData = new GridData();
layoutData.grabExcessHorizontalSpace = true;
layoutData.horizontalAlignment = GridData.FILL;
text.setLayoutData(layoutData);
PShelf shelf = new PShelf(parent, SWT.BORDER);
PShelfItem shelfGroup1 = new PShelfItem(shelf, SWT.NONE);
shelfGroup1.setText("Group 1");
shelfGroup1.getBody().setLayout(new FillLayout());
Table componentTable = new Table(shelfGroup1.getBody(), SWT.NONE);
createTableItem(componentTable, "Item11");
PShelfItem shelfGroup2 = new PShelfItem(shelf, SWT.NONE);
shelfGroup2.setText("Group 2");
shelfGroup2.getBody().setLayout(new FillLayout());
Table containerTable = new Table(shelfGroup2.getBody(), SWT.NONE);
createTableItem(containerTable, "Item21");
PShelfItem shelfGroup3 = new PShelfItem(shelf, SWT.NONE);
shelfGroup3.setText("Group 3");
shelfGroup3.getBody().setLayout(new FillLayout());
Table advancedWidgets = new Table(shelfGroup3.getBody(), SWT.NONE);
createTableItem(advancedWidgets, "Item31");
GridData shelfLayoutData = new GridData(SWT.FILL, SWT.FILL, true, true);
shelf.setLayoutData(shelfLayoutData);
}

Posted in Eclipse, JFace, PShelf, SWT | 1 Comment »

Showing Hierarchical data in Eclipse

Posted by sureshkrishna on December 9, 2006

Withe the introduction of RCP, EMF-RCP, GEF and GMF, now there are plethora of choices to display hierarchical or grouped data. I have been struggling with all these varieties to choose one amongst them. Its quite clear why would you choose a viewer (Tree, Table, etc…), so i am not going to write much about it. The real challenge is to choose between the available widgets appropriate for your application.

The Hierarchical data that need to be presented to the end user can be in many ways. It can be a TreeView, TableView, TableTreeView, Nebula PShelf Widget, ExpandBar. Probably there can be more viewers/widgets that i am not aware of.

The real important difference is to make sure that we have the right Widget and right Viewer to represent the data. Pretty clearly, many of the widgets from SWT can not manage the complex data manipulation. That’s the reason we have a very user friendly layer called JFace on the top of it 🙂

Recently i also fiddled around with the PaletteView in GEF. This is also a very good starting point to represent collection of artifacts, from which we are going to select a specific action or tool. To provide a select-drag-create kind of scenario, i love to use PaletteView, TreeView, PShelf.

A more dynamic scenario is supported by the TreeView (as it has the providers behind) . If we are sure of the artifacts to be represented at the design and development time, its better to go with the PaletteView, PShelf kind.

Posted in Eclipse, EMF, ExpandBar, GEF, GMF, JFace, PShelf, RCP, SWT, TableTreeView, TableView, TreeView | Leave a Comment »