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GH-6786: Demonstrate #xpath() with a recipient-list-router #10470

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merged 1 commit into from
Oct 8, 2025
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GH-6786: Demonstrate #xpath() with a recipient-list-router #10470

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5 changes: 5 additions & 0 deletions ...ration-xml/src/test/java/org/springframework/integration/xml/xpath/XPathTests-context.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -36,4 +36,9 @@

<bean id="testNodeMapper" class="org.springframework.integration.xml.xpath.XPathTests$TestNodeMapper"/>

<int:recipient-list-router input-channel="xpathRecipientsInput">
<int:recipient channel="channelA" selector-expression="#xpath(payload, '/passenger/age/text() &lt;= 2', 'boolean')"/>
<int:recipient channel="channelB" selector-expression="#xpath(payload, '/passenger/age/text() > 12', 'boolean')"/>
</int:recipient-list-router>

</beans>
19 changes: 19 additions & 0 deletions ...g-integration-xml/src/test/java/org/springframework/integration/xml/xpath/XPathTests.java
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Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,9 @@ public class XPathTests {
@Autowired
private MessageChannel xpathRouterInput;

@Autowired
private MessageChannel xpathRecipientsInput;

@Test
@SuppressWarnings("unchecked")
public void testXPathUtils() {
Expand Down Expand Up @@ -205,6 +208,22 @@ public void testInt3140Router() {
assertThat(receive.getPayload()).isEqualTo("<name>X</name>");
}

@Test
public void recipientListRouteByXpath() {
this.xpathRecipientsInput.send(new GenericMessage<>("<passenger><age>2</age></passenger>"));
this.xpathRecipientsInput.send(new GenericMessage<>("<passenger><age>16</age></passenger>"));

Message<?> receive = this.channelA.receive(1000);
assertThat(receive)
.extracting(Message::getPayload)
.isEqualTo("<passenger><age>2</age></passenger>");

receive = this.channelB.receive(1000);
assertThat(receive)
.extracting(Message::getPayload)
.isEqualTo("<passenger><age>16</age></passenger>");
}

public static class TestNodeMapper implements NodeMapper<String> {

@Override
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9 changes: 9 additions & 0 deletions src/reference/antora/modules/ROOT/pages/xml/xpath-routing.adoc
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Expand Up @@ -89,7 +89,16 @@ For example, if we want to route based on the name of the root node, we can use
evaluate-as-string="true">
<int-xml:xpath-expression expression="name(./node())"/>
</int-xml:xpath-router>
----

The out-of-the-box `#xpath()` xref:spel.adoc#built-in-spel-functions[SpEL function] is also powerful enough to use with a generic router definition, including recipient list router:

[source,xml]
----
<int:recipient-list-router input-channel="xpathRecipientsInput">
<int:recipient channel="channelA" selector-expression="#xpath(payload, '/passenger/age/text() &lt;= 2', 'boolean')"/>
<int:recipient channel="channelB" selector-expression="#xpath(payload, '/passenger/age/text() > 12', 'boolean')"/>
</int:recipient-list-router>
----

[[xpath-routing-converter]]
Expand Down