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| Custom Java Plug-in - deployement errors |
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Message
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| dnaren |
 Posted: Tue Apr 02, 2002 7:05 pm Post subject: |
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Apprentice
Joined: 10 Aug 2001
Posts: 45
Location: Charlotte, NC
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I am trying to deploy the sample java plug-in and I am getting the following errors:
BIP2246E: Request to create connection between node 'Switch1' (uuid='280ab1f9-ec00-0000-0080-92d6b78062e5') terminal 'Change', and node 'MQOutput1' (uuid='c841b1f9-ec00-0000-0080-92d6b78062e5') terminal 'in': source terminal could not be found in message flow 'CUSTOM_FLOW'.
I read through the earlier thread regarding Java Plug-in.
1. Compiled the file Switch.java (after removing the package statement).
2. Made the jar file Switch.jar
3. Copied the jar to <MQSI Install>jplugin directory
4. Added the plug-in in the control center with the label 'Switch'
5. Restarted the broker
6. Created a flow using the Switch node
7. Added the flow to the broker
When I try to deploy the broker, I get the above mentined error.
The source code for the plug-in is:
| Code: |
File: Switch.java
import com.ibm.broker.plugin.*;
public class Switch extends MbNode implements MbNodeInterface
{
String _nodeTraceSetting;
public Switch() throws MbException
{
createInputTerminal("in");
createOutputTerminal("add");
createOutputTerminal("change");
createOutputTerminal("delete");
createOutputTerminal("hold");
createOutputTerminal("failure");
}
public static String getNodeName()
{
return "SwitchNode";
}
public void evaluate(MbMessageAssembly assembly, MbInputTerminal in)
throws MbException
{
// Navigate to the relevant syntax element in the XML message
MbElement rootElement = assembly.getMessage().getRootElement();
MbElement switchElement = rootElement.getLastChild().getFirstChild().getFirstChild();
if(_nodeTraceSetting.equals("debug"))
{
System.out.println("Element = " + switchElement.getName());
System.out.println("Value = " + switchElement.getValue());
}
// Select the terminal indicated by the value of this element
String terminalName;
String elementValue = (String)switchElement.getValue();
if(elementValue.equals("add"))
terminalName = "add";
else if(elementValue.equals("change"))
terminalName = "change";
else if(elementValue.equals("delete"))
terminalName = "delete";
else if(elementValue.equals("hold"))
terminalName = "hold";
else
terminalName = "failure";
MbOutputTerminal out = getOutputTerminal(terminalName);
out.propagate(assembly);
}
public String getNodeTraceSetting()
{
return _nodeTraceSetting;
}
public void setNodeTraceSetting(String nodeTraceSetting)
{
_nodeTraceSetting = nodeTraceSetting;
}
}
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Any help would be highly appreciated...
Can somebody list out a step-by-step procedure to deploy this plug-in? The code compiles without any problems.
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| kirani |
| Posted: Tue Apr 02, 2002 8:41 pm Post subject: |
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Jedi Knight
Joined: 05 Sep 2001
Posts: 3779
Location: Torrance, CA, USA
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Looks like Configuration Manager does not have information about Terminals of Switch node. Have you used Control Center to create XML configuration files (XML and .WDP)? If so, make sure the terminal names you specified in Control Center matches with the names in your java source code.
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| kolban |
| Posted: Tue Apr 02, 2002 8:47 pm Post subject: |
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Grand Master
Joined: 22 May 2001
Posts: 1072
Location: Fort Worth, TX, USA
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| In your code, the terminal is named "change". In the error message, the terminal is named "Change". Notice the case difference for the letter 'C'. I think that is probably the error. Unfortunately, there is no (known) way to edit the definition so you will have to delete the node from the control center and re-enter. |
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| dnaren |
| Posted: Tue Apr 02, 2002 9:30 pm Post subject: |
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Apprentice
Joined: 10 Aug 2001
Posts: 45
Location: Charlotte, NC
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Yes. It is working now  I corrected the labels for the teminals to match the labels used in the code...i.e, corrected the label "Change" to "change"
I am able to deploy and test the plug-in.
It's been a while since I looked at this message board. I am very surprised to find that "MQMessenger" app I posted, is the most popular file here. But, I never got any feedback the people who downloaded.
Thanks for the help! |
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