I'm using wso2esb 4.7.0 and wso2dss 3.0.0.Here i have created a proxy service and wish to display a message using payload factory mediator.My configuration contain iterator mediator.I have to insert array of values in table and then display a message like Rows successfully inserted into database.My iteration configuration in insequence is like:
<iterate continueParent="true"
id="Readings"
expression="//ReadingsLiteTaildto">
<target>
<sequence>
<property name="userid" expression="get-property('userid')"/>
<property name="usergroupid" expression="get-property('usergroupid')"/>
<property name="slno" expression="//slno/text()"/>
<property name="type" expression="//type/text()"/>
<payloadFactory>
<format>
<p:Capp_musergroupdetails_insertion_op xmlns:p="http://ws.wso2.org/dataservice">
<p:usergroupid>$1</p:usergroupid>
<p:slno>$2</p:slno>
<p:userid>$3</p:userid>
<p:type>$4</p:type>
</p:Capp_musergroupdetails_insertion_op>
</format>
<args>
<arg evaluator="xml" expression="get-property('usergroupid')"/>
<arg evaluator="xml" expression="get-property('slno')"/>
<arg evaluator="xml" expression="get-property('userid')"/>
<arg evaluator="xml" expression="get-property('type')"/>
</args>
</payloadFactory>
<property name="FORCE_SC_ACCEPTED" value="true" scope="axis2"/>
<property name="messageType" value="application/json" scope="axis2"/>
<send receive="Capp_UserGroupDetail_Seq">
<endpoint>
<address uri="http://192.168.1.23:9764/services/CappMuserDataservice/"/>
</endpoint>
</send>
</sequence>
</target>
</iterate>
And sequence configuration is :
equence xmlns="http://ws.apache.org/ns/synapse" name="Capp_UserGroupDetail_Seq" onError="fault">
<property name="CONTENT_TYPE" value="application/json" scope="axis2" type="STRING"/>
<property name="FORCE_ERROR_ON_SOAP_FAULT" value="true"/>
<property name="HTTP_METHOD" value="POST" scope="axis2" type="STRING"/>
<property name="RESPONSE" value="true" scope="default" type="STRING"/>
<property name="NO_ENTITY_BODY" action="remove" scope="axis2"/>
<property xmlns:ns="http://org.apache.synapse/xsd" xmlns:h="http://ws.wso2.org/dataservice" name="usergroupdetailid" expression="//usergroupdetailid/text()" scope="default" type="STRING"/>
<log>
<property xmlns:ns="http://org.apache.synapse/xsd" name="usergroupdetailid" expression="get-property('usergroupdetailid')"/>
<property xmlns:ns="http://org.apache.synapse/xsd" name="usergroupid" expression="get-property('usergroupid')"/>
<property xmlns:ns="http://org.apache.synapse/xsd" name="userid" expression="get-property('userid')"/>
</log>
<payloadFactory>
<format>
<ResponseJSON xmlns="">
<Body>
<Datalist>
<Data>Successfully Rows inserted</Data>
</Datalist>
</Body>
<Status>200</Status>
</ResponseJSON>
</format>
</payloadFactory>
<log level="full"/>
<property name="messageType" value="application/json" scope="axis2"/>
<send/>
<property name="FORCE_ERROR_ON_SOAP_FAULT" value="true" scope="default" type="STRING"/>
</sequence>
but it gives error at server side like:
INFO - LogMediator To: http://www.w3.org/2005/08/addressing/anonymous, WSAction: , SOAPAction: , MessageID: urn:uuid:be41c3c9-f9c1-4ce9-933e-78b48e215601, Direction: response, usergroupdetailid = 370568479314543786, usergroupid = 370568478945445032, userid = 370568478735729831
[2014-05-27 12:23:25,165] INFO - LogMediator To: http://www.w3.org/2005/08/addressing/anonymous, WSAction: , SOAPAction: , MessageID: urn:uuid:be41c3c9-f9c1-4ce9-933e-78b48e215601, Direction: response, Envelope: <?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"><soapenv:Body><ResponseJSON><Body><Datalist><Data>Successfully Rows inserted</Data></Datalist></Body><Status>200</Status></ResponseJSON></soapenv:Body></soapenv:Envelope>
[2014-05-27 12:23:25,167] INFO - LogMediator To: http://www.w3.org/2005/08/addressing/anonymous, WSAction: , SOAPAction: , MessageID: urn:uuid:06cf72eb-2aed-483b-81ce-3cbfefd0f511, Direction: response, Envelope: <?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"><Body/></soapenv:Envelope>
[2014-05-27 12:23:25,167] ERROR - PassThroughHttpSender Failed to submit the response
java.lang.NullPointerException
at org.codehaus.jettison.mapped.MappedXMLStreamWriter.writeEndDocument(MappedXMLStreamWriter.java:189)
at org.apache.axis2.json.AbstractJSONMessageFormatter.writeTo(AbstractJSONMessageFormatter.java:194)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.submitResponse(PassThroughHttpSender.java:440)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:254)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:161)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:308)
at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:92)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:71)
at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:114)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:239)
at org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:443)
at org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:166)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
at org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:222)
at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:679)
[2014-05-27 12:23:25,168] ERROR - Axis2Sender Unexpected error sending message back
org.apache.axis2.AxisFault: Failed to submit the response
at org.apache.synapse.transport.passthru.PassThroughHttpSender.handleException(PassThroughHttpSender.java:501)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:256)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:161)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:308)
at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:92)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:71)
at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:114)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:239)
at org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:443)
at org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:166)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
at org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:222)
at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:679)
Caused by: java.lang.NullPointerException
at org.codehaus.jettison.mapped.MappedXMLStreamWriter.writeEndDocument(MappedXMLStreamWriter.java:189)
at org.apache.axis2.json.AbstractJSONMessageFormatter.writeTo(AbstractJSONMessageFormatter.java:194)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.submitResponse(PassThroughHttpSender.java:440)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:254)
... 15 more
[2014-05-27 12:23:25,169] INFO - LogMediator To: http://www.w3.org/2005/08/addressing/anonymous, WSAction: , SOAPAction: , MessageID: urn:uuid:ba684be3-b7bc-46bd-9c21-66495061c97d, Direction: response, MESSAGE = Executing default 'fault' sequence, ERROR_CODE = 0, ERROR_MESSAGE = Unexpected error sending message back, Envelope: <?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"><Body/></soapenv:Envelope>
Is their any problem in sequence or anything else?please let me know.
The NullPointerException is caused by an empty Response : Soap body is empty (see 3rd log entry) and message formatter associated with application/json (org.apache.axis2.json.JSONMessageFormatter) can't handle it
Related
I am doing Salesforce update operation using Salesforce Rest connector in wso2 ei. problem here is record not updated, it shows below exception after forming request payload.
Exception:
|**TID: [-1234] [] [2019-12-06 05:03:05,191] ERROR {org.apache.synapse.commons.json.JsonUtil} - #getNewJsonPayload. Could not save JSON payload. Invalid input stream found. MessageID: urn:uuid:33275d28-c55d-4a9e-bbcd-17d60cc38d1e {org.apache.synapse.commons.json.JsonUtil}
TID: [-1234] [] [2019-12-06 05:03:05,192] ERROR {org.apache.synapse.mediators.transform.PayloadFactoryMediator} - Error creating JSON Payload from source Lead {org.apache.synapse.mediators.transform.PayloadFactoryMediator}**
Code Snippet:
<api xmlns="http://ws.apache.org/ns/synapse" name="TestImageAPI" context="/imageapi">
<resource methods="GET" protocol="http https">
<inSequence>
<log level="custom" separator=",**, " description="FaultSequence">
<property name="=====TestImageAPI=====" value="called===="/>
</log>
<property name="ValuationId" value="00Q5500000AGHikEAH" scope="default" type="STRING"/>
<property name="First_Image_Name__c" value="cbimage" scope="default" type="STRING"/>
<property name="ObjectName" value="Lead" scope="default" type="STRING"/>
<payloadFactory media-type="json" description="Form Response Payload">
<format>{"Lead_Type__c":"$1"}</format>
<args>
<arg value="Phone"/>
</args>
</payloadFactory>
<property name="fieldAndValue" expression="json-eval($.)" scope="default" type="STRING"/>
<log level="custom">
<property name="===FirstImagepayload=====" expression="$ctx:fieldAndValue"/>
</log>
<sequence key="QRSag_VBSalesforceInitializer" description="Load Configurations"/>
<salesforcerest.init>
<accessToken>{$ctx:accessToken}</accessToken>
<apiVersion>{$ctx:apiVersion}</apiVersion>
<hostName>{$ctx:hostName}</hostName>
<refreshToken>{$ctx:refreshToken}</refreshToken>
<clientSecret>{$ctx:clientSecret}</clientSecret>
<clientId>{$ctx:clientId}</clientId>
<apiUrl>{$ctx:apiUrl}</apiUrl>
<registryPath>{$ctx:registryPath}</registryPath>
<intervalTime>{$ctx:intervalTime}</intervalTime>
</salesforcerest.init>
<property name="SalesforceAccessToken" expression="json-eval($.access_token)" scope="default" type="STRING"/>
<log level="full"/>
<property xmlns:ns="http://org.apache.synapse/xsd" name="Authorization" expression="fn:concat('Bearer ', get-property('SalesforceAccessToken'))" scope="transport" type="STRING" description="Authorization"/>
<salesforcerest.update>
<sObjectName>{$ctx:ObjectName}</sObjectName>
<Id>{$ctx:ValuationId}</Id>
<fieldAndValue>{$ctx:fieldAndValue}</fieldAndValue>
</salesforcerest.update>
</inSequence>
<outSequence/>
<faultSequence/>
</resource>
</api>
Note: Added Salesforce Rest connector in both server as well as ESB Project
Could anyone please give me a solution??
I have achieved the above mentioned use case. FYI,
<property description="Authorization" expression="fn:concat('Bearer ', get-property('SalesforceAccessToken'))" name="Authorization" scope="transport" type="STRING" xmlns:ns="http://org.apache.synapse/xsd"/>
<payloadFactory description="Form Response Payload" media-type="json">
<format>{"First_Image_Name__c":"$1"}</format>
<args>
<arg evaluator="xml" expression="$ctx:First_Image_Name__c"/>
</args>
</payloadFactory>
<log level="custom">
<property expression="json-eval($.)" name="===FirstImagepayload====="/>
</log>
<property expression="json-eval($.)" name="fieldAndValue" scope="default" type="STRING"/>
<property name="messageType" scope="axis2" type="STRING" value="application/json"/>
<property name="OUT_ONLY" scope="default" type="STRING" value="false"/>
<property expression="fn:concat($ctx:instance_url,'/services/data/v47.0/sobjects/Product2/',$ctx:StockID)" name="uri.var.ImageUpload" scope="default" type="STRING"/>
<property description="Authorization" expression="fn:concat('Bearer ', get-property('SalesforceAccessToken'))" name="Authorization" scope="transport" type="STRING" xmlns:ns="http://org.apache.synapse/xsd"/>
<log level="custom">
<property expression="$ctx:uri.var.ImageUpload" name="===SalesforceLink========="/>
</log>
<call description="ImageuploadEndpoint">
<endpoint>
<http method="patch" uri-template="{uri.var.ImageUpload}"/>
</endpoint>
</call>
<log level="full" separator="=== First Image Name Update Response ==="/>
When i try to call a remote web-service using a dynamic uri-template in send mediator, i receive this error.
The url of the resource to call is : https://ec.europa.eu/esco/api/resource/skill?uri=http://data.europa.eu/esco/skill/a59708e3-e654-4e37-8b8a-741c3b756eee&language=it
For this purpose i use below in-sequence and out-sequence:
<?xml version="1.0" encoding="UTF-8"?>
<sequence name="EscoInSequence" xmlns="http://ws.apache.org/ns/synapse">
<property expression="$url:resource" name="resource" scope="default"
type="STRING" xmlns:ns="http://org.apache.synapse/xsd"/>
<property expression="$url:uri" name="uri"
scope="default" type="STRING" xmlns:ns="http://org.apache.synapse/xsd"/>
<property expression="$url:language" name="language" scope="default"
type="STRING" xmlns:ns="http://org.apache.synapse/xsd"/>
<property
expression="concat('https://ec.europa.eu/esco/api/resource/',$ctx:resource,'?uri=',$ctx:uri,'&language=',$ctx:language)"
name="UrlToEsco" scope="default" type="STRING" xmlns:ns="http://org.apache.synapse/xsd"/>
<payloadFactory media-type="text">
<format>$1</format>
<args>
<arg evaluator="xml" expression="$ctx:UrlToEsco"
literal="false" xmlns:ns="http://org.apache.synapse/xsd"/>
</args>
</payloadFactory>
<send>
<endpoint>
<http method="GET" uri-template="{UrlToEsco}"/>
</endpoint>
</send>
<enrich>
<source clone="true" type="body"/>
<target action="child" property="rispostaEsco" type="property"/>
</enrich>
<loopback/>
</sequence>
<?xml version="1.0" encoding="UTF-8"?>
<sequence name="EscoOutSequence" xmlns="http://ws.apache.org/ns/synapse">
<send/>
</sequence>
When i try to call my api using a static uri ( https://ec.europa.eu/esco/api/resource/skill?uri=http://data.europa.eu/esco/skill/a59708e3-e654-4e37-8b8a-741c3b756eee&language=it ) i haven't problem, but when i use UrlToEsco property i obtain this error :
TID[-1234] [EI] [2019-09-03 12:31:53,029] ERROR
{org.apache.synapse.core.axis2.Axis2Sender} - Unexpected error during
sending message out
org.apache.axis2.description.ClientUtils.inferOutTransport(ClientUtils.java:86)
org.apache.synapse.core.axis2.DynamicAxisOperation$DynamicOperationClient.executeImpl(DynamicAxisOperation.java:116)
org.apache.axis2.client.OperationClient.execute(OperationClient.java:149)
org.apache.synapse.core.axis2.Axis2FlexibleMEPClient.send(Axis2FlexibleMEPClient.java:603)
org.apache.synapse.core.axis2.Axis2Sender.sendOn(Axis2Sender.java:85)
org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:547)
org.apache.synapse.endpoints.AbstractEndpoint.send(AbstractEndpoint.java:384)
org.apache.synapse.endpoints.HTTPEndpoint.send(HTTPEndpoint.java:85)
org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:123)
org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:108)
org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:70)
org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:158)
org.apache.synapse.rest.Resource.process(Resource.java:364)
org.apache.synapse.rest.API.process(API.java:399)
org.apache.synapse.rest.RESTRequestHandler.apiProcess(RESTRequestHandler.java:123)
org.apache.synapse.rest.RESTRequestHandler.dispatchToAPI(RESTRequestHandler.java:101)
org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:69)
org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:303)
org.apache.synapse.core.axis2.SynapseMessageReceiver.receive(SynapseMessageReceiver.java:92)
org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
org.apache.synapse.transport.passthru.ServerWorker.processNonEntityEnclosingRESTHandler(ServerWorker.java:337)
org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:158)
org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
java.lang.Thread.run(Thread.java:745)
Uri templates variables should be named as follows uri.var.[parameterName] so for example uri.var.UrlToEsco.
Try renameing your property
<property expression="concat('https://ec.europa.eu/esco/api/resource/',$ctx:resource,'?
uri=',$ctx:uri,'&language=',$ctx:language)"
name="uri.var.UrlToEsco" scope="default" type="STRING"
xmlns:ns="http://org.apache.synapse/xsd"/>
And using it like so:
<send>
<endpoint>
<http method="GET" uri-template="{uri.var.UrlToEsco}"/>
</endpoint>
</send>
I am doing iteration over the DSS response, But not working as expected
Below is the payload and call for DSS:
<payloadFactory media-type="xml">
<format>
<p:getNominaIDDetails xmlns:p="http://ws.wso2.org/dataservice">
<xs:column1 xmlns:xs="http://ws.wso2.org/dataservice">$1</xs:column1>
<xs:column2 xmlns:xs="http://ws.wso2.org/dataservice">$2</xs:column2>
<xs:column3 xmlns:xs="http://ws.wso2.org/dataservice">$3</xs:column3>
<xs:column4 xmlns:xs="http://ws.wso2.org/dataservice">$4</xs:column4>
</p:getNominaIDDetails>
</format>
<args>
<arg xmlns:ns="http://org.apache.synapse/xsd" expression="get-property('column1')" evaluator="xml"></arg>
<arg xmlns:ns="http://org.apache.synapse/xsd" expression="get-property('column2')" evaluator="xml"></arg>
<arg xmlns:ns="http://org.apache.synapse/xsd" expression="get-property('column3')" evaluator="xml"></arg>
<arg xmlns:ns="http://org.apache.synapse/xsd" expression="get-property('column4')" evaluator="xml"></arg>
</args>
</payloadFactory>
<header name="Action" scope="default" value="urn:xxxxxxx"></header>
<call>
<endpoint key="gov:/dss/endpoint"></endpoint>
</call>
<filter xmlns:ns="http://org.apache.synapse/xsd"
xmlns:ds="http://ws.wso2.org/dataservice"
xpath="get-property('db_count')>0">
<then>
<iterate id="xxx"
preservePayload="true"
attachPath="//ds:xxxx"
expression="//ds:xxx/ds:xxx">
<target sequence="My_seq">
</target>
</iterate>
</then>
<else>
<drop/>
</else>
</filter>
Response from the dss is:
<response xmlns="http://ws.wso2.org/dataservice">
<id>
<column1>234</column1>
<column1>4455</column1>
<column1>567778</column1>
</id>
<id>
<column1>546</column1>
<column1>56866</column1>
<column1>464453</column1>
</id>
<id>
<column1>546</column1>
<column1>56866</column1>
<column1>464453</column1>
</id>
</response>
With the above response completing with first iteration and remaining all the messages expiring after global timeout.Below are the logs after first iteration:
{org.apache.synapse.mediators.builtin.LogMediator}
TID: [0] [ESB] [2016-09-04 06:26:13,471] WARN {org.apache.synapse.core.axis2.SynapseCallbackReceiver} - Synapse received a response for the request with message Id : urn:uuid:c62d7dae-5290-49d1-b1bd-b5d2dcba7e04 But a callback is not registered (anymore) to process this response {org.apache.synapse.core.axis2.SynapseCallbackReceiver}
TID: [0] [ESB] [2016-09-04 06:26:42,144] WARN {org.apache.synapse.core.axis2.TimeoutHandler} - Expiring message ID : urn:uuid:36df3897-73be-4bc3-a434-aaab618c7ce3; dropping message after global timeout of : 180 seconds {org.apache.synapse.core.axis2.TimeoutHandler}
TID: [0] [ESB] [2016-09-04 06:26:42,145] WARN {org.apache.synapse.core.axis2.TimeoutHandler} - Expiring message ID : urn:uuid:d8ec8998-95c6-4d70-9e33-c11bda271e90; dropping message after global timeout of : 180 seconds {org.apache.synapse.core.axis2.TimeoutHandler}
Note: inside iterator doing following operations(sequence="My_seq")
perfoming the Bank call-->DSS call-->SAP call using call meditor
<?xml version="1.0" encoding="UTF-8"?>
<sequence xmlns="http://ws.apache.org/ns/synapse" name="My_seq" >
<property xmlns:ns="http://org.apache.synapse/xsd" xmlns:ds="http://ws.wso2.org/dataservice" name="id" expression="//ds:dss_response/ds:Id" scope="default" type="STRING"/>
<payloadFactory media-type="xml">
<format>
<h:opertion xmlns:h="http://ws.wso2.org/xxxxxx">
<h2h:id>$1</h2h:id>
</h:opertion>
</format>
<args>
<arg xmlns:ns="http://org.apache.synapse/xsd" evaluator="xml" expression="get-property('id')"/>
</args>
</payloadFactory>
<property xmlns:ns="http://org.apache.synapse/xsd" name="Authorization" expression="fn:concat('Basic ', base64Encode('xxxxx:xxxxxxxx'))" scope="transport" type="STRING"/>
<property name="ContentType" value="application/soap+xml" scope="axis2" type="STRING"/>
<property name="messageType" value="application/soap+xml" scope="axis2" type="STRING"/>
<call>
<endpoint key="gov:/endpoint"/>
</call>
<sequence key="next_sequence_to_be_DSS_then_SAP"/>
</sequence>
I believe this should suit your requirement. Here I'm checking status of incoming responses and send OK to client only if every request was successful.
<api xmlns="http://ws.apache.org/ns/synapse" name="MyAPI" context="/myapi">
<resource methods="POST GET" url-mapping="/">
<inSequence>
<call blocking="true">
<endpoint>
<http uri-template="http://www.mocky.io/v2/57cd6f422d00000101b15868"/>
</endpoint>
</call>
<property name="Staus" value="OK" type="STRING"/>
<iterate xmlns:ds="http://ws.wso2.org/dataservice" id="xxx" preservePayload="true" expression="//ds:response/ds:id">
<target>
<sequence>
<send>
<endpoint>
<http uri-template="http://www.mocky.io/v2/57cd70c22d00002401b1586c"/>
</endpoint>
</send>
</sequence>
</target>
</iterate>
</inSequence>
<outSequence>
<filter source="$axis2:HTTP_SC" regex="200">
<then/>
<else>
<property name="Staus" value="NOT OK" type="STRING"/>
</else>
</filter>
<aggregate id="xxx">
<completeCondition>
<messageCount/>
</completeCondition>
<onComplete xmlns:ds="http://ws.wso2.org/dataservice" expression="/">
<log level="custom">
<property name="Final Staus" expression="$ctx:Staus"/>
</log>
<payloadFactory media-type="xml">
<format>
<status>$1</status>
</format>
<args>
<arg evaluator="xml" expression="$ctx:Status"/>
</args>
</payloadFactory>
<send/>
</onComplete>
</aggregate>
</outSequence>
</resource>
</api>
Newbie on WSO2 ESB, we start using it as our central point as ESB but we are facing a real issue by doing a simple case :/
Here is the api I wrote (based on that simple) to show you my issue even if our usecase is different.
Users
<?xml version="1.0" encoding="UTF-8" ?>
<api context="/services/users" name="ListUsersAPI" xmlns="http://ws.apache.org/ns/synapse">
<resource methods="GET" protocol="http" url-mapping="/*">
<inSequence>
<payloadFactory media-type="json">
<format>{ "persons":{ "person":[ { "Id":"1", "givenName":"ajith", "lastName":"vitharana", "age":"25", "contactInfos":[ { "InfoId":"1", "department":"1", "contactType":"email", "value":"ajith#abc.org" }, { "InfoId":"2", "department":"1", "contactType":"mobile",
"value":"111111111" }, { "InfoId":"3", "department":"1", "contactType":"home", "value":"Magic Dr,USA" } ] }, { "Id":"2", "givenName":"shammi", "lastName":"jagasingha", "age":"30", "contactInfos":[ { "InfoId":"1", "department":"1", "contactType":"email",
"value":"shammi#abc.org" }, { "InfoId":"2", "department":"1", "contactType":"mobile", "value":"2222222222" }, { "InfoId":"3", "department":"1", "contactType":"home", "value":"Magic Dr,USA" } ] } ] }}</format>
<args/>
</payloadFactory>
<property action="remove" name="NO_ENTITY_BODY" scope="axis2" />
<property name="messageType" scope="axis2" type="STRING" value="application/json" />
<respond/>
</inSequence>
<outSequence/>
<faultSequence/>
</resource>
</api>
Roles
<?xml version="1.0" encoding="UTF-8" ?>
<api context="/services/roles" name="UserRolesAPI" xmlns="http://ws.apache.org/ns/synapse">
<resource methods="GET" protocol="http" uri-template="/{personid}">
<inSequence>
<filter regex="1" source="get-property('uri.var.personid')">
<then>
<payloadFactory media-type="json">
<format>{ "Id":1, "roles":[ { "roleId":1, "personKey":1, "role":"Deverloper" }, { "roleId":2, "personKey":1, "role":"Engineer" } ]}</format>
<args/>
</payloadFactory>
<property action="remove" name="NO_ENTITY_BODY" scope="axis2" />
<property name="messageType" scope="axis2" type="STRING" value="application/json" />
<respond/>
</then>
<else/>
</filter>
<filter regex="2" source="get-property('uri.var.personid')">
<then>
<payloadFactory media-type="json">
<format>{"personId": 2,"roles": [{ "personRoleId": 1, "personKey": 2, "role": "Manager" },{ "personRoleId": 2, "personKey": 2, "role": "QA" }]}</format>
<args/>
</payloadFactory>
<property action="remove" name="NO_ENTITY_BODY" scope="axis2" />
<property name="messageType" scope="axis2" type="STRING" value="application/json" />
<respond/>
</then>
<else/>
</filter>
</inSequence>
<outSequence/>
<faultSequence/>
</resource>
</api>
Finally, the main one, calling the first one, then iterating
<?xml version="1.0" encoding="UTF-8" ?>
<api context="/userdetails" name="UserDetailsAPI" xmlns="http://ws.apache.org/ns/synapse">
<resource methods="GET" protocol="http">
<inSequence>
<call>
<endpoint>
<http method="get" trace="disable" uri-template="http://localhost:8280/services/users" />
</endpoint>
</call>
<iterate attachPath="//jsonObject/persons" expression="//jsonObject/persons/person" id="it1" preservePayload="true" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<target>
<sequence>
<property expression="$body/jsonObject/persons/person/Id" name="uri.var.Id" scope="default" type="STRING" xmlns:ns="http://org.apache.synapse/xsd" />
<property expression="$body//jsonObject//person" name="response1" scope="default" type="STRING" xmlns:ns="http://org.apache.synapse/xsd" />
<call>
<endpoint>
<http method="get" trace="disable" uri-template="http://localhost:8280/services/roles/{uri.var.Id}" />
</endpoint>
</call>
<loopback/>
</sequence>
</target>
</iterate>
</inSequence>
<outSequence>
<send/>
</outSequence>
<faultSequence>
<sequence key="fault" />
</faultSequence>
</resource>
</api>
Executing the last api (http://localhost:8280/userdetails) is causing the following NPE:
20160408T101619.566 org.apache.synapse.transport.passthru.PassThroughHttpSender.handleException(PassThroughHttpSender.java:609) [PassThroughMessageProcessor-14] PassThroughHttpSender - Failed to submit the response
java.lang.NullPointerException
at org.apache.synapse.transport.passthru.util.SourceResponseFactory.create(SourceResponseFactory.java:64)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.submitResponse(PassThroughHttpSender.java:462)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:267)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:212)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:444)
at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:102)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:81)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:48)
at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:149)
at org.apache.synapse.rest.Resource.process(Resource.java:297)
at org.apache.synapse.rest.API.process(API.java:335)
at org.apache.synapse.rest.RESTRequestHandler.dispatchToAPI(RESTRequestHandler.java:97)
at org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:52)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:266)
at org.apache.synapse.mediators.builtin.LoopBackMediator.mediate(LoopBackMediator.java:55)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:81)
at org.apache.synapse.mediators.eip.splitter.IterateMediator.mediate(IterateMediator.java:241)
at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:267)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.mediateFromContinuationStateStack(Axis2SynapseEnvironment.java:679)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:244)
at org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:529)
at org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:172)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
at org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:251)
at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
20160408T101619.576 org.apache.synapse.core.axis2.Axis2Sender.handleException(Axis2Sender.java:246) [PassThroughMessageProcessor-14] Axis2Sender - Accept:*/*,Accept-Encoding:gzip, deflate, sdch,Accept-Language:fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4,Cache-Control:no-cache,Content-Type:application/json; charset=UTF-8,Host:localhost:8280,Postman-Token:3bfb96b7-0c31-964e-8c37-3b5dbd222efe,<?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body><jsonObject><Id>1</Id><roles><roleId>1</roleId><personKey>1</personKey><role>Deverloper</role></roles><roles><roleId>2</roleId><personKey>1</personKey><role>Engineer</role></roles></jsonObject></soapenv:Body></soapenv:Envelope> Unexpected error sending message back
org.apache.axis2.AxisFault: Failed to submit the response
at org.apache.synapse.transport.passthru.PassThroughHttpSender.handleException(PassThroughHttpSender.java:610)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:269)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:442)
at org.apache.synapse.core.axis2.Axis2Sender.sendBack(Axis2Sender.java:212)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.send(Axis2SynapseEnvironment.java:444)
at org.apache.synapse.mediators.builtin.SendMediator.mediate(SendMediator.java:102)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:81)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:48)
at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:149)
at org.apache.synapse.rest.Resource.process(Resource.java:297)
at org.apache.synapse.rest.API.process(API.java:335)
at org.apache.synapse.rest.RESTRequestHandler.dispatchToAPI(RESTRequestHandler.java:97)
at org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:52)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:266)
at org.apache.synapse.mediators.builtin.LoopBackMediator.mediate(LoopBackMediator.java:55)
at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:81)
at org.apache.synapse.mediators.eip.splitter.IterateMediator.mediate(IterateMediator.java:241)
at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:267)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.mediateFromContinuationStateStack(Axis2SynapseEnvironment.java:679)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:244)
at org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(SynapseCallbackReceiver.java:529)
at org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(SynapseCallbackReceiver.java:172)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
at org.apache.synapse.transport.passthru.ClientWorker.run(ClientWorker.java:251)
at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
at org.apache.synapse.transport.passthru.util.SourceResponseFactory.create(SourceResponseFactory.java:64)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.submitResponse(PassThroughHttpSender.java:462)
at org.apache.synapse.transport.passthru.PassThroughHttpSender.invoke(PassThroughHttpSender.java:267)
... 26 more
I'm afraid, this is the same issue than here (but not sure).
Would you please help me quickly to avoid before we decide to give wso2 away ?
The better would be to have the third part (userdetails) fixed by an answer.
Thank a lot !
In this case your loopback is inside the iterate mediator and that is calling outSequence each time you iterate.
If you move your loopback mediator out of the iterate as shown below, this should send the last response from the iterate to the client. If you want to aggregate your responses from the iteration, you should use aggregate mediator[1].
[1] https://docs.wso2.com/display/ESB490/Aggregate+Mediator
Updated
Unfortunately the above solution does not work, because each time an iteration completes, the flow still continues, so even if we have a loopback outside the iterate, we will be calling the outSequence multiple times. We will have to use an aggregate to be able to use the complete condition to trigger the outSequence once. Please have a look at the below configuration.
<api xmlns="http://ws.apache.org/ns/synapse" name="UserDetailsAPI" context="/userdetails">
<resource methods="GET">
<inSequence>
<call>
<endpoint>
<http trace="disable" method="GET" uri-template="http://localhost:8280/services/users"/>
</endpoint>
</call>
<iterate xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" id="it1" preservePayload="true" attachPath="//jsonObject/persons" expression="//jsonObject/persons/person">
<target>
<sequence>
<property xmlns:ns="http://org.apache.synapse/xsd" name="uri.var.Id" expression="$body/jsonObject/persons/person/Id" scope="default" type="STRING"/>
<property xmlns:ns="http://org.apache.synapse/xsd" name="response1" expression="$body//jsonObject//person" scope="default" type="STRING"/>
<call>
<endpoint>
<http trace="disable" method="GET" uri-template="http://localhost:8280/services/roles/{uri.var.Id}"/>
</endpoint>
</call>
</sequence>
</target>
</iterate>
<aggregate id="it1">
<completeCondition>
<messageCount min="-1" max="-1"/>
</completeCondition>
<onComplete expression="//jsonObject">
<loopback/>
</onComplete>
</aggregate>
</inSequence>
<outSequence>
<send/>
</outSequence>
<faultSequence>
<sequence key="fault"/>
</faultSequence>
</resource>
</api>
I have a registered onError sequence.
In version 4.8.1 SOAP envelop is available in onError sequence
while in 4.9.0 it is not.
in order to access SOAP message content in 4.9.0 after error (in onError sequence) I always have to copy it to some temp variable initially. it is very inconvenient.
could it be a bug or is it a new "feature" of 4.9.0?
this is my fault sequence. if i remove enrich mediator envelope comes empty from the sequence with an error. Without enrich mediator message contains empty soap envelope. It can be seen in the output of the log mediator and in the message stored in RabbitMQ backend. Actually, it is onError sequence of XXXXNotifySendSequence sequence (I added them both for the reference).
<?xml version="1.0" encoding="UTF-8"?>
<sequence name="XXXXNotifyErrorSequence" trace="disable" xmlns="http://ws.apache.org/ns/synapse">
<log level="full">
<property name="mssg" expression="get-property('mssg')"/>
<property name="retry_count" expression="get-property('retry_count')"/>
</log>
<filter xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope" xpath="get-property('mssg')">
<then>
<enrich>
<source clone="true" property="mssg" type="property"/>
<target type="envelope"/>
</enrich>
<property name="mssg" action="remove"/>
</then>
<else/>
</filter>
<filter xmlns:ns="http://org.apache.synapse/xsd" xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope" xmlns:ns3="http://org.apache.synapse/xsd" xpath="get-property('retry_count')">
<then>
<property name="retry_count" expression="number(get-property('retry_count'))+1" scope="default" type="STRING"/>
<filter xpath="get-property('retry_count') > 5">
<then>
<log>
<property name="Dropping--Count" expression="get-property('retry_count')"/>
</log>
<drop/>
</then>
<else>
<sequence key="XXXXNotifySendSequence"/>
</else>
</filter>
</then>
<else>
<property name="retry_count" value="1" scope="default" type="STRING"/>
<clone continueParent="true">
<target>
<sequence>
<makefault version="soap11">
<code xmlns:soap11Env="http://schemas.xmlsoap.org/soap/envelope/" value="soap11Env:VersionMismatch"/>
<reason expression="get-property('ERROR_MESSAGE')"/>
</makefault>
<send/>
</sequence>
</target>
</clone>
</else>
</filter>
<clone>
<target>
<sequence>
<log level="custom">
<property name="STORE" value="store the message"/>
</log>
<store messageStore="XXXXRabbitMQNative"/>
</sequence>
</target>
</clone>
</sequence>
this is the sequence calling onError sequence
<?xml version="1.0" encoding="UTF-8"?>
<sequence name="XXXXNotifySendSequence"
onError="XXXXNotifyErrorSequence" trace="disable" xmlns="http://ws.apache.org/ns/synapse">
<log level="full">
<property name="XXXX" value="request start"/>
</log>
<enrich>
<source clone="true" type="envelope"/>
<target property="mssg" type="property"/>
</enrich>
<property name="DISABLE_CHUNKING" scope="axis2" type="STRING" value="true"/>
<call>
<endpoint key="HTTPEndpoint"/>
</call>
<log level="full">
<property name="XXXX" value="request end"/>
</log>
</sequence>
I am not much sure why you written fault sequence in that way. but when i change like bellow its working. no need to enrich and assign to other property
Sequence:(same as yours - untouched)
<?xml version="1.0" encoding="UTF-8"?>
<sequence name="XXXXNotifySendSequence"
onError="XXXXNotifyErrorSequence" trace="disable" xmlns="http://ws.apache.org/ns/synapse">
<log level="full">
<property name="XXXX" value="request start"/>
</log>
<enrich>
<source clone="true" type="envelope"/>
<target action="replace" property="mssg" type="property"/>
</enrich>
<property name="DISABLE_CHUNKING" scope="axis2" type="STRING" value="true"/>
<call>
<endpoint key="HTTPEndpoint"/>
</call>
<log level="full">
<property name="XXXX" value="request end"/>
</log>
</sequence>
fault sequence:
<?xml version="1.0" encoding="UTF-8"?>
<sequence name="XXXXNotifyErrorSequence" trace="disable" xmlns="http://ws.apache.org/ns/synapse">
<log>
<property expression="get-property('ERROR_CODE')"
name="========error-code=========" xmlns:ns="http://org.apache.synapse/xsd"/>
<property expression="get-property('ERROR_MESSAGE')"
name="========error-message=========" xmlns:ns="http://org.apache.synapse/xsd"/>
</log>
<makefault version="soap11">
<code value="soap11Env:VersionMismatch" xmlns:soap11Env="http://schemas.xmlsoap.org/soap/envelope/"/>
<reason expression="get-property('ERROR_MESSAGE')" xmlns:ns="http://org.apache.synapse/xsd"/>
<role>sample</role>
<detail>sample detail</detail>
</makefault>
<send/>
</sequence>
proxy: to call sequence
<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="samplecall"
transports="http,https"
statistics="disable"
trace="disable"
startOnLoad="true">
<target inSequence="XXXXNotifySendSequence"/>
<description/>
</proxy>
response: (since end point is not defined)
<soapenv:Fault xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<faultcode xmlns:soap11Env="http://schemas.xmlsoap.org/soap/envelope/">soap11Env:VersionMismatch</faultcode>
<faultstring>Couldn't find the endpoint with the key : HTTPEndpoint</faultstring>
<faultactor>sample</faultactor>
<detail>sample detail</detail>
</soapenv:Fault>
in log:
2015-11-08 17:19:55,250] INFO - LogMediator To: /services/samplecall.samplecallHttpSoap11Endpoint, WSAction: urn:mediate, SOAPAction: urn:mediate, MessageID: urn:uuid:106d763f-cdc1-43d2-98a9-63d22d17eb81, Direction: request, XXXX = request start, Envelope: <?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body/></soapenv:Envelope>
[2015-11-08 17:19:55,252] INFO - LogMediator To: /services/samplecall.samplecallHttpSoap11Endpoint, WSAction: urn:mediate, SOAPAction: urn:mediate, MessageID: urn:uuid:106d763f-cdc1-43d2-98a9-63d22d17eb81, Direction: request, ========error-code========= = 305100, ========error-message========= = Couldn't find the endpoint with the key : HTTPEndpoint