## Apache Synapse

## Sample 855: Introduction to Synapse Content Based Router eip function template

<!-- Introduction to Synapse Content Based Router eip function template --> <definitions xmlns="http://ws.apache.org/ns/synapse"> <import xmlns="http://ws.apache.org/ns/synapse" name="EipLibrary" package="synapse.lang.eip" /> <proxy name="StockQuoteProxy" transports="https http" startOnLoad="true" trace="disable"> <target> <inSequence> <call-template target="synapse.lang.eip.content_based_router"> <with-param name="routing_exp" value="{{//m0:getQuote/m0:request/m0:symbol}}" xmlns:m0="http://services.samples"/> <with-param name="match_content" value="IBM:cnd1_seq,MSFT:cnd2_seq;cnd3_seq"/> </call-template> </inSequence> <outSequence> <send/> </outSequence> </target> </proxy> <sequence name="send_seq"> <log level="custom"> <property name="DEBUG" value="Condition Satisfied"/> </log> <send> <endpoint name="simple"> <address uri="http://localhost:9000/services/SimpleStockQuoteService"/> </endpoint> </send> </sequence> <sequence name="cnd1_seq"> <log level="custom"> <property name="MSG_FLOW" value="Condition (I) Satisfied"/> </log> <sequence key="send_seq"/> </sequence> <sequence name="cnd2_seq"> <log level="custom"> <property name="MSG_FLOW" value="Condition (II) Satisfied"/> </log> <sequence key="send_seq"/> </sequence> <sequence name="cnd3_seq"> <log level="custom"> <property name="MSG_FLOW" value="Condition (III) Satisfied"/> </log> <sequence key="send_seq"/> </sequence> </definitions>

### Objective

This sample is an introduction Synapse Content Based Router eip function template.

### Pre-requisites

- Deploy the SimpleStockQuoteService in the sample Axis2 server and start Axis2
- Start Synapse using the configuration numbered 855 (repository/conf/sample/synapse_sample_855.xml)
  Unix/Linux: sh synapse.sh -sample 855
  Windows: synapse.bat -sample 855

### Executing the Client

In this sample, it routes the message by matching the specified Xpath to the regular expression. Execute the StockQuote client in the dumb client mode, specifying 'IBM', 'MSFT' and 'DELL' as the stock symbols.

When the symbol IBM is requested, you will see cnd1_seq sequence is getting executed.

ant stockquote -Dtrpurl=http://localhost:8280/services/StockQuoteProxy -Dsymbol=IBM

When the symbol MSFT is requested, you will see cnd2_seq sequence is getting executed.

ant stockquote -Dtrpurl=http://localhost:8280/services/StockQuoteProxy -Dsymbol=MSFT

When the symbol DELL is requested, you will see cnd3_seq sequence is getting executed , which is the default sequence.

ant stockquote -Dtrpurl=http://localhost:8280/services/StockQuoteProxy -Dsymbol=DELL

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