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Syntax
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The parameters available to configure the Fault mediator to create a SOAP 1.1 fault are as follows. | Parameter Name | Description |
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| Fault Code | This parameter is used to select the fault code for which the fault string should be defined. Possible values are as follows. - versionMismatch: Select this to specify the fault string for a SOAP version mismatch.
- mustUnderstand: Select this to specify the fault string for the
mustUnderstand error in SOAP. - Client: Select this to specify the fault string for client side errors.
- Server: Select this to specify the fault string for server side errors.
| | Fault String | The detailed fault string of the fault code. The following options are available. - value: If this option is selected, the fault string is specified as a string value.
- expression: If this option is selected, the fault string is specified as an expression.
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| You can click NameSpaces to add namespaces if you are providing an expression. Then the Namespace Editor panel would appear where you can provide any number of namespace prefixes and URLs used in the XPath expression. |
| | Fault Actor | This parameter specifies the recipient The element of the SOAP fault message . If no value is entered for this parameter, the fault message will be sent to the recipient to whom the original message was being sent. which is used to capture the party which caused the fault. | | Detail | This parameter is used to enter a custom description of the error. |
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The parameters available to configure the Fault mediator to create a SOAP 1.2 fault are as follows. | Parameter Name | Description |
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| Code | This parameter is used to select the fault code for which the reason should be defined. Possible values are as follows. - versionMismatch: Select this to specify the reason for a SOAP version mismatch.
- mustUnderstand: Select this to specify the reason for the
mustUnderstand error in SOAP. - dataEncodingUnknown: Select this to specify the reason for a SOAP encoding error.
- Sender: Select this ti specify the reason for a sender-side error.
- Receiver: Select this to specify the reason for a receiver-side error.
| | Reason | This parameter is used to specify the reason for the error code selected in the Code parameter. The following options are available.- value: If this option is selected, the reason is specified as a string value.
- expression: If this option is selected, the reason is specified as an expression.
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| You can click NameSpaces to add namespaces if you are providing an expression. Then the Namespace Editor panel would appear where you can provide any number of namespace prefixes and URLs used in the XPath expression. |
| | Role | The SOAP 1.1 role name. | | Node | The SOAP 1.2 node name. | | Detail | This parameter is used to enter a custom description of the error. |
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The parameters available to configure the Fault mediator to create a plain-old XML (POX) fault are as follows. | Parameter Name | Description |
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| Reason | This parameter is used to enter a custom fault message. The following options are available. - value: If this option is selected, the fault message is specified as a string value.
- expression: If this option is selected, the fault message is specified as an expression.
| Info |
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| You can click NameSpaces to add namespaces if you are providing an expression. Then the Namespace Editor panel would appear where you can provide any number of namespace prefixes and URLs used in the XPath expression. |
| | Detail | This parameter is used to enter details for the fault message. The following options are available. - value: If this option is selected, the detail is specified as a string value.
- expression: If this option is selected, the detail is specified as an expression.
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| You can click NameSpaces to add namespaces if you are providing an expression. Then the Namespace Editor panel would appear where you can provide any number of namespace prefixes and URLs used in the XPath expression. |
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You can configure the mediator using XML. Click switch to source view in the Mediator window. 
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Examples
Following are examples of different usages of the Fault Mediator.
Example one
In the following example, the test message string value the testmessage string value is given as the reason for the SOAP error SOAP error versionMismatch.
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<makefault xmlns="http://ws.apache.org/ns/synapse" version="soap11">
<code xmlns:soap11Env="http://schemas.xmlsoap.org/soap/envelope/" value="soap11Env:VersionMismatch" />
<reason value="test message " />
<role></role>
</makefault>
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Example two
The following sample proxy validates the content type using the Filter Mediator based on the Content-Type header property. If the result is true, it sends an exception back to the client using the Fault Mediator. Else, if the result is false, it continues the flow.
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<proxy xmlns="http://ws.apache.org/ns/synapse" name="CheckContentType" transports="https http" startOnLoad="true" trace="disable">
<description/>
<target>
<inSequence>
<log level="custom">
<property name="_______Content-Type" expression="get-property('transport','Content-Type')"/>
</log>
<filter source="get-property('transport','Content-Type')" regex="application/xhtml\+xml">
<then>
<log>
<property name="Content-Type" expression="get-property('transport','Content-Type')"/>
<property name="Decision" value="Exception, due to unexpected Content-Type."/>
</log>
<makefault version="soap11">
<code xmlns:soap11Env="http://schemas.xmlsoap.org/soap/envelope/" value="soap11Env:Client"/>
<reason value="Content-Type Error"/>
<role/>
<detail>Content-Type: application/xhtml+xml is not a valid content type.</detail>
</makefault>
<header name="To" scope="default" action="remove"/>
<send/>
</then>
<else>
<log>
<property name="Content-Type" expression="get-property('transport','Content-Type')"/>
<property name="Decision" value="Continue the mediation flow..."/>
</log>
<send>
<endpoint>
<address uri="http://localhost:9000/services/SimpleStockQuoteService"/>
</endpoint>
</send>
</else>
</filter>
</inSequence>
<outSequence>
<send/>
</outSequence>
</target>
<publishWSDL uri="http://localhost:9000/services/SimpleStockQuoteService?wsdl"/>
</proxy> |
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Samples
Sample 5: Creating SOAP Fault Messages and Changing the Direction of a Message.