Showing posts with label eclipse. Show all posts
Showing posts with label eclipse. Show all posts

November 13, 2014

Remote Debugging WSO2 ESB with IntellijIdea and Eclipse

This post assumes you are familiar with debugging concepts. The remote debugging will be explained using WSO2 ESB product.

What happens in remote debugging is that the debugging information of a running application is communicated with an IDE that has the source of the application. The application is not running from the source, and thus the term "remote" debugging. Similar to any normal debug scenario, where you would be running the application in debug mode from the IDE, you can have breakpoints, watch expressions, etc.

Read more about how remote debugging works in JVM at [1].

Let's proceed on how to debug WSO2 ESB.

Setup the Source for Debugging WSO2 ESB

There are a number of components in WSO2 stack that contribute to the complete WSO2-ESB product. Some of these components are : wso2-synapse, carbon-mediation, wso2-axis2-transport, carbon4-kernel, etc. You can download source of all these components at https://github.com/wso2.

Decide on the component(s) you need to debug, and import them to your preferred IDE (Eclipse or IntellijIdea). To do this :
  1. Clone the required component from the git repository : git clone <repository_url>
  2. Build the component : mvn clean install or mvn clean install -Dmaven.test.skip=true (to skip tests)
  3. To setup as an IDE project : mvn idea:idea (for IntellijIdea) or mvn eclipse:eclipse (for Eclipse)
  4. Add breakpoints as needed
  5. If debugging multiple components, 
    • Eclipse : Import as project to the same workspace and add breakpoints
    • Idea : Import as module to the same window and add breakpoints
    • Optionally, at the time of debug, when debugging takes you to the .class files, you can attach the relevant components as sources with "attach source" option and continue.
Note : 
If you want to debug message flow on ESB, add a breakpoint to receive(org.apache.axis2.context.MessageContext mc) method in org.apache.synapse.core.axis2.ProxyServiceMessageReceiver class in wso2-synapse. This is the start point to the message flow on ESB.

Remote Debugging WSO2-ESB

Step 1 : Start WSO2-ESB in debug mode

$ sh bin/wso2server.sh debug 5005
Please start the remote debugging client to continue...
JAVA_HOME environment variable is set to /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
CARBON_HOME environment variable is set to /Users/maheeka/wso2esb-4.8.1
Listening for transport dt_socket at address: 5005

We have started the ESB in debug mode, and it listens now on port 5005 for a remote debugging client. 

Step 2 : Start Remote Debugging Client (IDE)

IntelliJIdea
  1. Run > Edit Configurations
  2. On the left panel, click on "+" and add a new Remote Configurations. Notice the port to be same as you give when starting ESB.
  3. Then Run > Debug 'wso2-synapse' to start the listener
  4. The application will now run as normal and stop at the breakpoints you have added




Eclipse
  1. Run > Debug Configurations
  2. Add a new Remote Java Application Configuration. Notice the port number to be same as you give when starting ESB.
  3. Click on Debug to start debugging 

July 23, 2012

OLE Exception in Eclipse for MSOffice files






If you have got the above error message when you try to open a MS Office file in eclipse, that means your OLE editor is not working in eclipse. When i googled I found that this is a common problem for Excel files. So I suggest to set the Excel files to open in Excel editor instead of OLE editor. So, do the following ;

  1. Go to Eclipse -> Window -> Preference -> General -> Editors -> File Associations



  2. Add the .xls file type (or any other file type you want)


  3. Choose the Excel WorkBook 97-2003 WorkSheet (or any other file editor you want)



  4. Click OK-> OK

  5. Now the .xls file will opens in Ms Excel

June 21, 2012

XML Editor for Eclipse




Edit:
Make sure you go to Open With -> XML Editor to make XML Editor the default for that XML

November 21, 2011

Eclipse block comment problem

Eclipse by default formats the block comments when you save changes of a file. It is additional trouble when you need to uncomment.

To solve this problem,

  • Go to Windows->Preferences->Java->Code Style->Formatter->Edit->Comments 
  • Uncheck Enable block comment formatting
  • Click on Apply

June 8, 2011

Using EclipseFP for Haskell

Reference :