JBoss ESB Tools User Guide

JBoss ESB Tools User Guide
JBoss ESB Tools User Guide
Version: 3.2.0.Beta
JBoss ESB Tools User Guide
1. Introduction ................................................................................................................. 1
1.1. What is ESB and JBoss ESB Tools? ................................................................... 1
1.2. Key Features of ESB Tools ................................................................................. 1
1.3. Requirements and Installation .............................................................................. 1
2. Tasks ........................................................................................................................... 2
2.1. Creating a ESB Project ....................................................................................... 2
2.2. Using ESB Project Examples .............................................................................. 6
2.3. Deploying a ESB Project ................................................................................... 10
2.4. Creating a ESB File .......................................................................................... 15
2.5. Creating a ESB Action ...................................................................................... 17
2.6. Configuring ESB Runtime in Preferences ........................................................... 19
2.7. Using and Configuring SOA Platform ................................................................. 24
3. Reference ................................................................................................................... 32
3.1. JBoss ESB Editor ............................................................................................. 32
3.1.1. Source View .......................................................................................... 32
3.1.2. Tree View .............................................................................................. 33
3.2. ESB Editor Features ......................................................................................... 43
3.2.1. ESB Syntax Validation ............................................................................
3.2.2. Support for XML Schema .......................................................................
3.2.3. Content Assist for ESB XML File .............................................................
3.2.4. OpenOn for ESB XML File .....................................................................
3.2.5. Synchronized Source and Visual Editing ..................................................
4. Summary ....................................................................................................................
4.1. Other Relevant Resources on the Topic .............................................................
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Chapter 1. Introduction
Introduction
1.1. What is ESB and JBoss ESB Tools?
ESB (Enterprise Service Bus) is an abstraction layer on top of the implementation of an
enterprise messaging system that provides the features that Service Oriented Architectures may
be implemented with.
If you want to develop applications using ESB technology JBoss ESB also meets your needs.
Read more about Jboss ESB at http://www.jboss.org/jbossesb.
JBoss ESB Tools provide an ESB editor and necessary wizard for creating an ESB file.
In this guide we provide you with the information on JBoss ESB Tools (installation, configuration
and deployment) and usage of ESB Editor which allows you to develop an ESB file much faster
and with far fewer errors so sparing your time.
1.2. Key Features of ESB Tools
For a start, we propose you to look through the table of main features of ESB plugin:
Table 1.1. Key Functionality of ESB Tools
Feature
Benefit
Chapter
JBoss Tools Project
Examples Wizard
Some kinds of projects with predefined Using ESB Project
structure are available for usage.
Examples
JBoss Enterprise
SOA Platform
The SOA Platform integrates specific versions Using and configuring
of JBoss ESB, jBPM, Drools and the SOA Platform
JBoss Enterprise Application Platform that are
certified to work together in a single supported
enterprise distribution.
ESB Editor
JBoss ESB tooling has powerful editor features
including syntax validation, support for XML
Schema and other.
1.3. Requirements and Installation
This section will provide you with the information on how to install JBoss ESB plugin into Eclipse.
ESB Tools come as one module of JBoss Tools project. Since ESB Tools have a dependence
on other JBoss Tools modules we recommend you to install a bundle of all JBoss Tools plug-ins
[http://labs.jboss.com/tools/download.html]. You can find all necessary installation instructions on
JBoss Wiki in the InstallingJBossTools [http://www.jboss.org/tools/download/installation] section.
1
Chapter 2. Tasks
Tasks
In this section we will focus on all concepts that JBoss Tools integrate for working with JBoss ESB.
2.1. Creating a ESB Project
In this chapter we suggest a step-by-step walk-through of creating a new ESB project. Let's try
to create a new JBoss ESB project.
We will show you how to use the ESB Project Creation wizard for creating a new ESB project and
setting basic ESB classpath.
Select File >New > Project... in the main menu bar or context menu for selected project and then
ESB > ESB Project in the dialog opened:
Figure 2.1. Select a Wizard dialog
Clicking Next brings you to the JBoss ESB Project wizard page where a project name, ESB
version and target JBoss Runtime are to be specified. Specify, for example, helloworld as a
Project name and accept the default ESB version.
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Chapter 2. Tasks
Figure 2.2. JBoss ESB Project wizard
By clicking Modify button you can open Project Facets Wizard page,where you can select facets
that should be enabled for this project. On the Project Facets Wizard page you can also configure
runtime for the application
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Chapter 2. Tasks
Figure 2.3. Project Facets Wizard
Next step provides you an opportunity to configure your project for building a java application
Clicking Next on this form brings you to the ESB facet installation page where you can specify
Java Source Directory and ESB Content Directory. ESB Content Directory is a folder that contains
the most of artifacts that an ESB archive needs. You also can configure ESB libraries to the project
by selecting a ESB runtime using one of the options:
1. Use Server Supplied ESB Runtime
2. Select a ESB runtime from the JBoss ESB runtime list predefined in the preferences. If you
choose the first option, make sure that the project has the Target JBoss Runtime set and this
runtime has a ESB runtime installed.
3. Choose ESB Config Vertion. From the version 3.1.0 JBoss ESB Tools supports three different
jboss-esb.xsd versions: jbossesb-1.0.1.xsd, jbossesb-1.1.0.xsd and jbossesb-1.2.0.xsd.
Note:
If you use ESB 4.7 you should select jbossesb-1.2.0.xsd.
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Chapter 2. Tasks
Figure 2.4. Install ESB facet step
Click Finish and a ESB project with the default jboss-esb.xml will be created.
Figure 2.5. The generated ESB project structure
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Chapter 2. Tasks
2.2. Using ESB Project Examples
JBoss Tools provides a Project Example wizard that is an easy way for users to create some
kinds of projects to be used as examples with some predefined structure. Let's start creating a
ESB project using this wizard.
Before creating a ESB project example create JBoss Runtime with name JBoss 4.2 Runtime, it
will be used by your ESB project example.
Select File >New > Others , in the main menu bar or context menu for selected project and then
JBoss Tools > Project Examples in the New dialog:
Figure 2.6. Select a wizard - Project Examples
Clicking Next brings you to the wizard page where you can select a ESB project example from
the example list.
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Chapter 2. Tasks
Figure 2.7. Project Example Wizard
Note:
Under the Projects section you can find two categories related to ESB:
• ESB
• ESB for SOA-P 5.0
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Chapter 2. Tasks
It means that if you use a runtime pointed to a SOA-P 5.0, you should download
the examples from the ESB for SOA-P 5.0 category in order to avoid the
incompatibility errors.
Every ESB example has two projects, one is a ESB project and another is a Java project used
to test the ESB project.
Here is a list of ready examples available in both categories (ESB and ESB for SOA-P 5.0):
• JBoss ESB HelloWorld Example - demonstrates the minimal files necessary to make a basic
ESB component execute as well as to prove that the ESB is properly configured.
• JBoss ESB HelloWorld Action Example - demonstrates the use of multiple action invocations
from a single configuration. You can use a single Action class and make multiple method calls
or use multiple Action classes.
• JBoss ESB HelloWorld File Action Example - demonstrates using the File gateway feature
of the JBoss ESB. Files that are found in a particular directory with a particular extension are
sent to a JMS queue with actions for processing.
• JBoss ESB Web Service consumer1 Example - demonstrates how to consume a 181 Web
Service in an ESB action.
• JBoss ESB Web Service producer Example - demonstrates how to deploy a JSR181
Webservice endpoint on JBossESB using the SOAPProcessor action.
• JBoss ESB Smooks CSV -> XML Example - demonstrates how to transform a comma
separated value (CSV) file to an XML.
• JBoss ESB Smooks XML -> POJO Example - demonstrates the use of Smooks performing
a simple transformation by converting an XML file into Java POJOs.
• JBoss ESB Smooks XML -> XML date-manipulation Example - demonstrates how to
manually define and apply a Message Transformation within JBoss ESB.
• JBoss ESB Smooks XML -> XML Example - a very basic example of how to manually define
and apply a Message Transformation within JBoss ESB. It applies a very simple XSLT to a
SampleOrder.xml message and prints the before and after XML to the console.
We will take as our example JBoss ESB HelloWorld Example ESB and Client project:
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Chapter 2. Tasks
Figure 2.8. JBoss Tools ESB Project Examples
Choose them using the Ctrl button and then click Finish. As a result you will get two projects
created:
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Chapter 2. Tasks
Figure 2.9. JBoss
helloworld_testclient
ESB
Project
Examples:
helloworld
and
Deploy the HelloWorld ESB project and run a test class in the client Java project to see the test
result in the Console view.
2.3. Deploying a ESB Project
In this chapter you will see how to deploy a ESB project using the WTP deployment framework.
Before deploying the project, open the Servers View by selecting Window > Show View > Other
> Server > Servers, create a JBoss Server in the Server view and start it, and then right click the
created JBoss server, select Add and Remove Projects, and add the ESB projects you want to
deploy from the left side to the right side in the opened dialog.
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Chapter 2. Tasks
Figure 2.10. Add and Remove Projects
Click Finish to add the project to the server. You also can drag the ESB project from the Project
View to the server.
Figure 2.11. Servers View
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Chapter 2. Tasks
Thus, you have just added the ESB project to the JBoss server module list. Right click the JBoss
Server and select Publish to publish the project on the server. You can check the deploying result
in the Console view.
The Run and Debug options work on ESB projects causing a (re)deploy for a user designated
server.
You can also use the "Finger touch" for a quick restart of the project without restarting the server:
Figure 2.12. Finger Touch button
The "Finger" touches descriptors dependent on project (i.e. web.xml for WAR, application.xml for
EAR) and now it is also available for jboss-esb.xml in ESB projects.
You can also deploy your ESB project as an .esb archive. Right-click on the project, choose Export:
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Chapter 2. Tasks
Figure 2.13. Export of ESB project
Choose ESB > ESB File and click Next:
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Chapter 2. Tasks
Figure 2.14. Choosing ESB File
And finally export the ESB project to the file system: choose the destination, choose the target
runtime if need a specific one and make the appropriate settings for the archive. Then click Finish.
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Chapter 2. Tasks
Figure 2.15. ESB Export
Your project is deployed as an .esb archive.
An ESB archive can be created for ESB projects only. It is also possible to deploy an .esb archive
to a JBoss AS based server with JBoss ESB installed.
2.4. Creating a ESB File
In this chapter we suggest a step-by-step walk-through of creating your own simple file. Let's try
to organize a new ESB file.
We will show you how to use the Creation wizard for creating a new ESB file.
At first you should open any project. Select File >New > Other... in the main menu bar or context
menu for selected project and then ESB > ESB File in the New dialog:
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Chapter 2. Tasks
Figure 2.16. Select a wizard - ESB File
Clicking Next brings you to the wizard page where a folder, a name and a version for the file
should be specified. Choose, for example, jboss-esb.xml as the name and accept the selected
projects folder and the default version.
Note:
From the version 3.1.0 JBoss ESB Tools supports three different jboss-esb.xsd
versions: jbossesb-1.0.1.xsd, jbossesb-1.1.0.xsd and jbossesb-1.2.0.xsd. If you
use ESB 4.7 you should select jbossesb-1.2.0.xsd.
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Chapter 2. Tasks
Figure 2.17. Folder, Name and Version for ESB file
Thus, your file will be created in the selected projects folder by default. If you want to change the
folder for your future file click Browse... button to set needed folder or simply type it.
Clicking on Finish results in the file being generated. The wizard creates one xml file.
2.5. Creating a ESB Action
From this chapter you will find out how to create a ESB Action Java File.
At first you need to open a ESB or simple Java project. Then you should select File > New>Other in
the main menu or from the context project menu. Then click ESB > ESB Action in the New dialog.
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Chapter 2. Tasks
Figure 2.18. Select a wizard - ESB Action
After that click Next and you will be brought to the New ESB Action wizard. In this wizard the class
name should be specified, also you can set a package or add a interface as for any Java class.
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Chapter 2. Tasks
Figure 2.19. New ESB Action wizard
As a result, the ESB Action Java File will be created in the selected package and it will have
org.jboss.soa.esb.actions.AbstractActionPipelineProcessor as superclass.
Clicking on Finish will generate the ESB Action class. Also this class will become available in ESB
Editor wizards.
2.6. Configuring ESB Runtime in Preferences
In this chapter you will know how to predefine a JBoss ESB runtime on the Preferences page.
You may already know, there are two ways to set JBoss ESB runtime when creating a ESB project,
one is to use the project target JBoss runtime, and another is to select a JBoss ESB runtime
predefined in JBoss Tools preferences. Let's configure it.
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Chapter 2. Tasks
Select Window >Preferences > JBoss Tools > JBoss ESB Runtime , to open the JBoss ESB
Runtime Preferences page where you can add, remove and Edit a JBoss ESB runtime.
Figure 2.20. JBoss ESB Runtimes
Select Add to open a dialog where you can specify the JBoss ESB runtime location, name and
version number. It's also possible to define configuration if you point the home location to a Jboss
AS or SOA-p, in case you select a standalone ESB runtime location, the configuration combo will
be empty and should be ignored. You can also customize the libraries of the runtime by checking
the Customize JBoss ESB Runtime jars checkbox.
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Chapter 2. Tasks
Figure 2.21. Configure new JBoss ESB Runtime
The new JBoss ESB Runtime will be configured. Click OK to finish and save the preferences.
You can use the configuration when creating a JBoss ESB project.
When a ESB runtime is configured for your ESB project you are able to change it to any other
using the classpath container page for ESB runtime. To do that, turn to the Package Explorer view
and right-click the "JBoss ESB Runtime" library. Select Properties and a table listing all available
JBoss ESB runtimes will appear:
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Chapter 2. Tasks
Figure 2.22. Classpath Container Page to change ESB runtime
Choose one of them to set to the ESB project and click Ok.
ESB container allows Source and JavaDoc locations to be set via the Properties dialog on each
contained .jar: right-click on any .jar file, select Properties. Choose Java Source Attachment and
select location (folder, JAR or zip) containing new source for the chosen .jar using one of the
suggested options (workspace, external folder or file) or enter the path manually:
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Chapter 2. Tasks
Figure 2.23. Classpath Container: Java Source Attachment
Click on Apply and then on Ok.
To change Javadoc Location choose Javadoc Location and specify URL to the documentation
generated by Javadoc. The Javadoc location will contain a file called package-list:
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Chapter 2. Tasks
Figure 2.24. Classpath Container: Javadoc Location
Click on Apply and then on Ok.
2.7. Using and Configuring SOA Platform
In this chapter you will know what is JBoss Enterprise SOA Platform and how you can configure
it to use for your ESB projects.
JBoss Enterprise SOA Platform delivers a flexible, standards-based platform to integrate
applications, SOA services, business events and automate business processes. The SOA
Platform integrates specific versions of JBoss ESB, jBPM, Drools and the JBoss Enterprise
Application Platform that are certified to work together in a single supported enterprise distribution.
Having configured JBoss Enterprise SOA Platform for your ESB project you don't need to install
and configure ESB server and runtime as they are already included.
Check here to find more details on the platform: JBoss Enterprise SOA Platform [http://
www.jboss.com/products/platforms/soa] and JBoss Enterprise SOA Platform Component Details
[http://www.jboss.com/products/platforms/soa/components].
You can find out what is SOA here: Basics of SOA [http://www.jboss.org/jbossesb/resources/
SOABasics.html] and SOA and EOA [http://www.jboss.org/jbossesb/resources/SOAEOA.html].
To configure the JBoss Enterprise SOA platform select Window > Preferences > Server > Runtime
Environments, that will open the Server Runtime Environments Preferences page where you can
add, remove and edit a Server Runtime Environment.
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Chapter 2. Tasks
Figure 2.25. Configure new Server Runtime Environment
Select Add, choose JBoss 4.2 Runtime as a type of runtime environment, check the Create a new
local server checkbox and click Next:
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Chapter 2. Tasks
Figure 2.26. Type of Server Runtime Environment
On the next step you can specify a name of the server runtime environment and browse to its
location. Click Finish to add the server runtime environment.
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Chapter 2. Tasks
Figure 2.27. New Server Runtime Environment Details
Now you have your SOA platform configured. To check the configuration create a ESB Project
using instructions described here. As a result you will have two projects created:
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Chapter 2. Tasks
Figure 2.28. Helloworld Projects Created
Then you will need to add JBoss ESB libraries to your projects to configure the SOA server runtime
exactly for your projects. Right-click on your project, select Build Path > Add Libraries:
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Chapter 2. Tasks
Figure 2.29. Add Libraries
Choose JBoss ESB Libraries and click Next:
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Chapter 2. Tasks
Figure 2.30. ESB Libraries
Select the necessary runtime to add to the project classpath:
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Chapter 2. Tasks
Figure 2.31. Select a ESB runtime
Click Finish.
Now you can deploy your Helloworld project to the server and run a test class in the client Java
project to see the test result in the Console view.
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Chapter 3. Reference
Reference
This chapter includes detailed reference information about JBoss ESB Tools.
3.1. JBoss ESB Editor
ESB editor has lots of useful features, they are described in details in this chapter.
ESB File Editor is a powerful and customizable tool which allows developing an application using
ESB technology.
ESB file editor has two tabs: Tree and Source.
3.1.1. Source View
You can easily switch from Tree to Source by selecting the Source tab at the bottom of the editor
and work in Source view.
Figure 3.1. Source View
The Source view for the editor displays a text content of the ESB file. It is always synchronized
with Tree view, so any changes made in one of the views will immediately appear in the other.
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Chapter 3. Reference
No matter what view you select, you get full integration with Outline view. For example, you can
work in the Source view with the help of the Outline view. The Outline view shows a tree structure
of the ESB file. Simply select any element in the Outline view and it will jump to the same place
in the Source editor, so you can navigate through the source code with Outline view.
Figure 3.2. Outline View
3.1.2. Tree View
You can switch to Tree. The Tree view for the editor displays all ESB artifacts in a tree format. By
selecting any node you can see and edit its properties which will appear in the right-hand area.
For example, a Provider:
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Chapter 3. Reference
Figure 3.3. Tree View
Some properties are represented as links to the associated editors.
Figure 3.4. Property Link to the Associated Editor
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Chapter 3. Reference
Now when editing ESB actions which refer to other files (Drools, Groovy, Smooks, etc.), the label
for the field turns into a link to launch the editor associated with that type of file.
Figure 3.5. Property Link to the Associated Editor
Adding, editing or deleting of some artifacts operations are available right in the Tree view . Rightclick any node and select one of the available actions in the context menu. For example, you can
easily add a new Provider:
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Chapter 3. Reference
Figure 3.6. Adding New Provider
Then you can add Channels and Properties for the Providers the same way or using the forms
with Add, Edit and Remove buttons to the right.
You can easily add a new Service too:
Figure 3.7. Adding New Service
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Chapter 3. Reference
The same way you can create a listener for service and other elements of ESB:
Figure 3.8. Adding New Listener for Service
The same actions can be done in the right part of Tree view tab (Form editor) using Add, Edit
and Remove buttons.
Filter can be also edited this way
Figure 3.9. Editing Filter
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Chapter 3. Reference
In order to add a new custom Action to your ESB XML file you should select the Actions node
under the Services, then right-click and choose New > Custom Action.
Figure 3.10. Adding New Custom Action in the Tree View
Or instead make use of Add... button in the Form editor on the left.
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Chapter 3. Reference
Figure 3.11. Adding New Custom Action in the Form Editor
Note:
Some new components are available to support ESB 4.7,such as: new actions
(XsltAction, PersistAction, BpmProcessor, ScriptingAction), new processors
(EJBProcessor), new routers (HttpRouter, JMSRouter, EmailRouter).
Then you will see Add Action wizard. There is a need to specify Action name and Action Java class.
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Chapter 3. Reference
Figure 3.12. Add Action Wizard
To get a help with finding a proper class you can select Browse to open Select class dialog.
Figure 3.13. Select class dialog
Moreover it's possible to type a Process name or select it with Edit Process dialog which is called
out by clicking Browse.
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Chapter 3. Reference
Figure 3.14. Edit Process dialog
As you can see on the both figures above, the context menu will also prompt you to insert one
of the Actions that are supplied out-of-the-box with JBoss ESB. After choosing one an appeared
New Pre-Packed Action wizard will ask you to fill out a name field and other fields specific for each
Action property. For example, for Content Based Router Action the wizard looks as follows:
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Chapter 3. Reference
Figure 3.15. Add Pre-Packed Action Wizard
After confirming creating the Action you can see it in the Tree under the Actions node and preview
as well as edit its settings in the Form editor on the left.
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Chapter 3. Reference
Figure 3.16. Form Editor for Content Based Router
ESB editor can recognize some specific objects. On the
org.jboss.soa.esb.actions.ContentBasedRouter in the Class section.
figure
you
can
see
3.2. ESB Editor Features
JBoss ESB tooling has powerful editor features that help you easily make use of content and
code assist.
This last chapter covers capabilities on how you can use ESB editor.
3.2.1. ESB Syntax Validation
When working in JBoss ESB editor you are constantly provided with feedback and contextual
error checking as you type. In the Source viewer, if at any point a tag is incorrect or incomplete,
an error will be indicated next to the line and also in the Problems view below.
3.2.2. Support for XML Schema
JBoss ESB Framework fully supports XML files based on schemas as well as DTDs.
The schema checks the child elements of any kind of provider element; the ESB generates errors
on startup if you attempt to define an incorrect combination (e.g.: a jms-bus inside an ftp-provider).
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Chapter 3. Reference
Note:
The schema used behind ESB editor now uses the latest version available (from
SOA-P 4.3). This removes the errors/warnings some users have reported seeing
when using SOA-P specific esb.xml files.
3.2.3. Content Assist for ESB XML File
When you work with any ESB XML file Content Assist is available to help you. It provides popup tip to help you complete your code statements. It allows you to write your code faster and with
more accuracy. Content assist is always available in the Source mode. Simply type Ctrl-Space
to see what is available.
Content Assist for ESB XML file:
Figure 3.17. Content Assist for ESB XML file
Content Assist for attributes:
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Chapter 3. Reference
Figure 3.18. Content Assist for attributes
3.2.4. OpenOn for ESB XML File
ESB file comes with the OpenOn feature that allows to make use of multiple file references in the
file just with a click and the Ctrl key hold down.
The OpenOn is implemented for different types of files/pages inside the <action> tag: .xsd, .xml,
etc.
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Chapter 3. Reference
Figure 3.19. OpenOn for smooks configuration file
It is also available for classes:
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Chapter 3. Reference
Figure 3.20. OpenOn for classes
3.2.5. Synchronized Source and Visual Editing
ESB file can be edited in either source or extra visual modes at the same time.
JBoss Tools provide you two different editors to speed your development: a graphical view (Tree)
and source (Source). At the same time, you always have full control over esb source file. Any
changes you make in the source view will immediately appear in the tree view. Both views are
synchronized, you can edit the file in any view.
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Chapter 3. Reference
Figure 3.21. Two Views are Synchronized
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Chapter 4. Summary
Summary
On the whole, this reference supplies you with all necessary information on the functionality that
JBoss ESB plugin provides for work with JBoss ESB.
We hope, this guide helped you to get started with the JBoss ESB Tools. For
additional information you are welcome on JBoss forum [http://www.jboss.com/index.html?
module=bb&op=viewforum&f=201].
4.1. Other Relevant Resources on the Topic
You can find a set of benefits and other extra information on:
• JBoss ESB [http://www.jboss.org/jbossesb]
• JBoss Wiki [http://wiki.jboss.org/wiki/JBossESB]
• JBoss ESB Documentation Library [http://www.jboss.org/jbossesb/docs/index.html]
The latest JBoss Tools/JBoss Developer Studio documentation builds are available on the JBoss
Tools nightly documentation page [http://download.jboss.org/jbosstools/nightly-docs/].
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