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GH-764 Add support for output header enrichemnt

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Resolves #764
This commit is contained in:
Oleg Zhurakousky
2021-11-08 15:26:11 +01:00
parent 5af3d14918
commit f4171cae16
5 changed files with 146 additions and 35 deletions
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52
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/InputHeaderMappingTests.java → spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/HeaderMappingTests.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2019-2021 the original author or authors.
* Copyright 2021-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -33,8 +33,8 @@ import org.springframework.messaging.support.MessageBuilder;
import static org.assertj.core.api.Assertions.assertThat;
//NOTE!!! assertions for all tests are in 'echo' function since we're validating what's coming into it.
public class InputHeaderMappingTests {
//NOTE!!! assertions for input in all tests are in 'echo' function since we're validating what's coming into it.
public class HeaderMappingTests {
@Test
public void testErrorWarnAndContinue() throws Exception {
@@ -173,6 +173,52 @@ public class InputHeaderMappingTests {
}
}
@SuppressWarnings("unchecked")
@Test
public void testOutputHeaderMapping() throws Exception {
try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
SampleFunctionConfiguration.class).web(WebApplicationType.NONE).run(
"--logging.level.org.springframework.cloud.function=DEBUG",
"--spring.main.lazy-initialization=true",
"--spring.cloud.function.configuration.foo.output-header-mapping-expression.key1='hello1'",
"--spring.cloud.function.configuration.foo.output-header-mapping-expression.key2=headers.contentType")) {
FunctionCatalog functionCatalog = context.getBean(FunctionCatalog.class);
FunctionInvocationWrapper function = functionCatalog.lookup("foo");
Message<byte[]> result = (Message<byte[]>) function.apply(MessageBuilder.withPayload("helo")
.setHeader(MessageHeaders.CONTENT_TYPE, "application/json").build());
assertThat(result.getHeaders().containsKey("key1")).isTrue();
assertThat(result.getHeaders().get("key1")).isEqualTo("hello1");
assertThat(result.getHeaders().containsKey("key2")).isTrue();
assertThat(result.getHeaders().get("key2")).isEqualTo("application/json");
}
}
@SuppressWarnings("unchecked")
@Test
public void testMixedInputOutputHeaderMapping() throws Exception {
try (ConfigurableApplicationContext context = new SpringApplicationBuilder(
SampleFunctionConfiguration.class).web(WebApplicationType.NONE).run(
"--logging.level.org.springframework.cloud.function=DEBUG",
"--spring.main.lazy-initialization=true",
"--spring.cloud.function.configuration.split.output-header-mapping-expression.keyOut1='hello1'",
"--spring.cloud.function.configuration.split.output-header-mapping-expression.keyOut2=headers.contentType",
"--spring.cloud.function.configuration.split.input-header-mapping-expression.key1=headers.path.split('/')[0]",
"--spring.cloud.function.configuration.split.input-header-mapping-expression.key2=headers.path.split('/')[1]",
"--spring.cloud.function.configuration.split.input-header-mapping-expression.key3=headers.path")) {
FunctionCatalog functionCatalog = context.getBean(FunctionCatalog.class);
FunctionInvocationWrapper function = functionCatalog.lookup("split");
Message<byte[]> result = (Message<byte[]>) function.apply(MessageBuilder.withPayload("helo")
.setHeader(MessageHeaders.CONTENT_TYPE, "application/json")
.setHeader("path", "foo/bar/baz").build());
assertThat(result.getHeaders().containsKey("keyOut1")).isTrue();
assertThat(result.getHeaders().get("keyOut1")).isEqualTo("hello1");
assertThat(result.getHeaders().containsKey("keyOut2")).isTrue();
assertThat(result.getHeaders().get("keyOut2")).isEqualTo("application/json");
}
}
@EnableAutoConfiguration
@Configuration
protected static class SampleFunctionConfiguration {