| Author |
Message
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| bpkumar2 |
 Posted: Wed Dec 26, 2012 8:09 am Post subject: Accessing Global environment Variables in JavaCoputeNode |
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Newbie
Joined: 11 Dec 2012
Posts: 8
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I have set the below environment in the compute node
SET Environment.Variables.FileName =InputRoot.XMLNSC.MAIN.INPUT1.CONTENT.FILENAME;
and trying to access the same environment variable in Java copute node which is connected to the coputenode, using below sinppet. But I am not able to get the value of varaible. i am getting : java.lang.NullPointerException.
I googled to find out the correct usgae, but I am not getting any working sample. 
JavaCompute node snippet.
MbElement env = assembly.getGlobalEnvironment().getRootElement() ;
MbElement env_fileName =env.getFirstElementByPath("Variable/FileName");
String fileName=env_fileName.toString();
logger.debug(">>> File Name:: >>>>"+fileName); |
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| lancelotlinc |
| Posted: Wed Dec 26, 2012 8:24 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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1. Use [c od e] blocks when posting here.
2. You mis-spelled 'Variables'.
Where are your Trace nodes? If you had used Trace nodes, you could have figured this out on your own.
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| bpkumar2 |
| Posted: Wed Dec 26, 2012 8:39 am Post subject: |
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Newbie
Joined: 11 Dec 2012
Posts: 8
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| lancelotlinc wrote: |
1. Use [c od e] blocks when posting here.
. |
I will follow the standards.
| lancelotlinc wrote: |
2. You mis-spelled 'Variables'.. |
I have corrected the typo. but still its same issue.
| lancelotlinc wrote: |
Where are your Trace nodes? If you had used Trace nodes, you could have figured this out on your own. .. |
I have used the Trace node, but did not find any error in the trace node.... |
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| lancelotlinc |
| Posted: Wed Dec 26, 2012 8:51 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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The pattern you could use in your trace node is:
| Code: |
Root:
${Root}
===
LocalEnvironment:
${LocalEnvironment}
===
Environment:
${Environment}
===
ExceptionList:
${ExceptionList}
===
${CURRENT_TIMESTAMP}
======================= |
Please post the output of the Trace node.
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| bpkumar2 |
| Posted: Wed Dec 26, 2012 10:43 am Post subject: |
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Newbie
Joined: 11 Dec 2012
Posts: 8
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| lancelotlinc wrote: |
The pattern you could use in your trace node is:
| Code: |
Root:
${Root}
===
LocalEnvironment:
${LocalEnvironment}
===
Environment:
${Environment}
===
ExceptionList:
${ExceptionList}
===
${CURRENT_TIMESTAMP}
======================= |
Please post the output of the Trace node. |
@ Jedi Knight, You can find the Trace hereunder.
(0x01000000:Name ):MQMD = ( ['MQHMD' : 0x1116746d0]
(0x03000000:NameValue):SourceQueue = 'MYQUEUE.OUT' (CHARACTER)
(0x03000000:NameValue):Transactional = TRUE (BOOLEAN)
(0x03000000:NameValue):Encoding = 546 (INTEGER)
(0x03000000:NameValue):CodedCharSetId = 1208 (INTEGER)
(0x03000000:NameValue):Format = 'MQSTR ' (CHARACTER)
(0x03000000:NameValue):Version = 2 (INTEGER)
(0x03000000:NameValue):Report = 0 (INTEGER)
(0x03000000:NameValue):MsgType = 8 (INTEGER)
(0x03000000:NameValue):Expiry = -1 (INTEGER)
(0x03000000:NameValue):Feedback = 0 (INTEGER)
(0x03000000:NameValue):Priority = 0 (INTEGER)
(0x03000000:NameValue):Persistence = 0 (INTEGER)
(0x03000000:NameValue):MsgId = X'414d51204d5141444556503031202020509f67522d15be99' (BLOB)
(0x03000000:NameValue):CorrelId = X'000000000000000000000000000000000000000000000000' (BLOB)
(0x03000000:NameValue):BackoutCount = 1 (INTEGER)
(0x03000000:NameValue):ReplyToQ = ' ' (CHARACTER)
(0x03000000:NameValue):ReplyToQMgr = 'MQTESTQM ' (CHARACTER)
(0x03000000:NameValue):UserIdentifier = 'testuser ' (CHARACTER)
(0x03000000:NameValue):AccountingToken = X'0000000000000000000000000000000000000000000000000000000000000000' (BLOB)
(0x03000000:NameValue):ApplIdentityData = ' ' (CHARACTER)
(0x03000000:NameValue):PutApplType = 28 (INTEGER)
(0x03000000:NameValue):PutApplName = 'WebSphere MQ Client for Java' (CHARACTER)
(0x03000000:NameValue):PutDate = DATE '2012-12-26' (DATE)
(0x03000000:NameValue):PutTime = GMTTIME '18:25:26.980' (GMTTIME)
(0x03000000:NameValue):ApplOriginData = ' ' (CHARACTER)
(0x03000000:NameValue):GroupId = X'000000000000000000000000000000000000000000000000' (BLOB)
(0x03000000:NameValue):MsgSeqNumber = 1 (INTEGER)
(0x03000000:NameValue):Offset = 0 (INTEGER)
(0x03000000:NameValue):MsgFlags = 0 (INTEGER)
(0x03000000:NameValue):OriginalLength = -1 (INTEGER)
)
(0x01000000:Folder):XMLNSC = ( ['xmlnsc' : 0x110479ff0]
(0x01000000:Folder):INPUT = (
(0x01000000:Folder):CONTENT_STRING = (
(0x03000000:PCDataField):FILENAME = '/mount1/abcd.txt' (CHARACTER)
(0x03000000:PCDataField):BATCHID = 'A1234567898765' (CHARACTER)
(0x03000000:PCDataField):CHECKSUM = '7d6f674fba991743cde0cead4ef45ac6' (CHARACTER)
(0x01000000:Folder ):GP_NAME = (
(0x03000000:PCDataField):VALUE1 = 'A1' (CHARACTER)
(0x03000000:PCDataField):VALUE2 = 'A2' (CHARACTER)
(0x03000000:PCDataField):VALUE3 = 'A3' (CHARACTER)
)
)
)
)
)
===
LocalEnvironment:
===
Environment:
===
ExceptionList:
( ['MQROOT' : 0x110432f90]
(0x01000000:Name):RecoverableException = (
(0x03000000:NameValue):File = '/build/S000_P/src/DataFlowEngine/ImbMqInputNode.cpp' (CHARACTER)
(0x03000000:NameValue):Line = 2010 (INTEGER)
(0x03000000:NameValue):Function = 'ImbCommonInputNode::eligibleForBackout' (CHARACTER)
(0x03000000:NameValue):Type = 'ComIbmMQInputNode' (CHARACTER)
(0x03000000:NameValue):Name = 'My_Test_Flow#FCMComposite_1_4' (CHARACTER)
(0x03000000:NameValue):Label = 'My_Test_Flow.MQInput' (CHARACTER)
(0x03000000:NameValue):Catalog = 'BIPmsgs' (CHARACTER)
(0x03000000:NameValue):Severity = 3 (INTEGER)
(0x03000000:NameValue):Number = 2652 (INTEGER)
(0x03000000:NameValue):Text = 'Dequeued failed message. Propagating a message to the failure terminal' (CHARACTER)
)
)
===
2012-12-26 10:25:28.009710
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| lancelotlinc |
| Posted: Wed Dec 26, 2012 11:07 am Post subject: |
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Jedi Knight
Joined: 22 Mar 2010
Posts: 4941
Location: Bloomington, IL USA
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Notice that 'Environment' is blank. This indicates that your set statement did not successfully execute.
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| bpkumar2 |
| Posted: Thu Dec 27, 2012 8:50 am Post subject: |
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Newbie
Joined: 11 Dec 2012
Posts: 8
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| lancelotlinc wrote: |
| Notice that 'Environment' is blank. This indicates that your set statement did not successfully execute. |
Thank you for your help, I notied the problem with SET statement and I have corrected it. |
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| kash3338 |
| Posted: Thu Dec 27, 2012 9:32 pm Post subject: |
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Shaman
Joined: 08 Feb 2009
Posts: 709
Location: Chennai, India
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| bpkumar2 wrote: |
| Thank you for your help, I notied the problem with SET statement and I have corrected it. |
What was the problem? Was there a mistake in parsing the Input tree? |
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| bpkumar2 |
| Posted: Fri Dec 28, 2012 12:54 am Post subject: |
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Newbie
Joined: 11 Dec 2012
Posts: 8
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| kash3338 wrote: |
| bpkumar2 wrote: |
| Thank you for your help, I notied the problem with SET statement and I have corrected it. |
What was the problem? Was there a mistake in parsing the Input tree? |
Exactly... There was a mistake in parsing input tree, I was in a impression that it's problem in reading the global variable in java compute node.
but the below mentioned mechanism is correct one.
| Code: |
Compue node :
SET Environment.Variables.FileName ='/mount1/data/file1.txt';
JCN ::
MbElement env = assembly.getGlobalEnvironment().getRootElement() ;
String sourceFileName= env.getFirstElementByPath("Variables/FileName").getValueAsString();
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