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GH-606 add initila support for generating default cloud event attributes

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This commit is contained in:
Oleg Zhurakousky
2020-11-13 11:39:48 +01:00
parent 9c58e6d64b
commit 784fde2e1f
8 changed files with 120 additions and 29 deletions
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30
spring-cloud-function-samples/function-sample-cloudevent/src/main/java/io/spring/cloudevent/CloudeventDemoApplication.java
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@@ -90,29 +90,21 @@ public class CloudeventDemoApplication {
data.setReleaseDateAsString("01-10-2006");
CloudEventAttributes ceAttributes = ceAttrProvider.get(ceMessage.getHeaders())
.setSource("https://interface21.icom/")
.setSource("https://interface21.com/")
.setType("com.interface21");
return MessageBuilder.withPayload(data).copyHeaders(ceAttributes).build();
};
}
// // spring.io/applicationName
//
// @Bean
// public Function<Message<SpringReleaseEvent>, SpringReleaseEvent> consumeAndProduceCloudEvent() {
// return ceMessage -> {
// SpringReleaseEvent data = ceMessage.getPayload();
// data.setVersion("2.0");
// data.setReleaseDateAsString("01-10-2006");
//
// CloudEventAtttributesProvider ceAttrProvider = new DefaultCloudEventAttributesProvider();
//
// CloudEventAttributes ceAttributes = ceAttrProvider.get(ceMessage.getHeaders())
// .setSource("https://interface21.icom/")
// .setType("com.interface21");
//
// return MessageBuilder.withPayload(data).copyHeaders(ceAttributes).build();
// };
// }
@Bean
public Function<Message<SpringReleaseEvent>, SpringReleaseEvent> consumeAndProduceCloudEventPojo() {
return ceMessage -> {
SpringReleaseEvent data = ceMessage.getPayload();
data.setVersion("2.0");
data.setReleaseDateAsString("01-10-2006");
return data;
};
}
}

28
spring-cloud-function-samples/function-sample-cloudevent/src/test/java/io/spring/cloudevent/CloudeventDemoApplicationFunctionTests.java
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@@ -50,16 +50,16 @@ public class CloudeventDemoApplicationFunctionTests {
* is (see `asPOJOMessage` and `asPOJO` specifically). Type conversion will happen
* inside spring-cloud-function.
*/
Function<Message<String>, String> asPojoMessage = catalog.lookup("asPOJOMessage");
Function<Message<String>, Message<String>> asPojoMessage = catalog.lookup("asPOJOMessage");
System.out.println(asPojoMessage.apply(binaryCloudEventMessage));
Function<Message<String>, String> asPojo = catalog.lookup("asPOJO");
Function<Message<String>, Message<String>> asPojo = catalog.lookup("asPOJO");
System.out.println(asPojo.apply(binaryCloudEventMessage));
Function<Message<String>, String> asString = catalog.lookup("asString");
Function<Message<String>, Message<String>> asString = catalog.lookup("asString");
System.out.println(asString.apply(binaryCloudEventMessage));
Function<Message<String>, String> asStringMessage = catalog.lookup("asStringMessage");
Function<Message<String>, Message<String>> asStringMessage = catalog.lookup("asStringMessage");
System.out.println(asStringMessage.apply(binaryCloudEventMessage));
}
}
@@ -83,4 +83,24 @@ public class CloudeventDemoApplicationFunctionTests {
System.out.println(asPojoMessage.apply(binaryCloudEventMessage));
}
}
@Test
public void demoPureFunctionProduceConsumeCloudEventAsPojo() {
try(ConfigurableApplicationContext context = SpringApplication.run(CloudeventDemoApplication.class)) {
FunctionCatalog catalog = context.getBean(FunctionCatalog.class);
CloudEventAtttributesProvider ceAttrProvider = new DefaultCloudEventAttributesProvider();
Message<String> binaryCloudEventMessage = MessageBuilder
.withPayload("{\"releaseDate\":\"24-03-2004\", \"releaseName\":\"Spring Framework\", \"version\":\"1.0\"}")
.copyHeaders(ceAttrProvider.get("spring.io/spring-event", "com.example.springevent"))
.build();
/*
* NOTE how it makes no difference what the actual function signature
* is (see `asPOJOMessage` and `asPOJO` specifically). Type conversion will happen
* inside spring-cloud-function.
*/
Function<Message<String>, Message<String>> asPojoMessage = catalog.lookup("consumeAndProduceCloudEventPojo");
System.out.println(asPojoMessage.apply(binaryCloudEventMessage));
}
}
}