SpringCloud/spring-cloud-function
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GH-791 Add support for propagating input headers

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Resolves #791
This commit is contained in:
Oleg Zhurakousky
2022-05-04 13:20:01 +02:00
parent 1a5489b5b6
commit 63ad1dead6
4 changed files with 93 additions and 0 deletions
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10
spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/FunctionProperties.java
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@@ -170,6 +170,8 @@ public class FunctionProperties implements EnvironmentAware, ApplicationContextA
private Map<String, Object> outputHeaderMappingExpression;
private boolean copyInputHeaders;
public Map<String, Object> getInputHeaderMappingExpression() {
return inputHeaderMappingExpression;
}
@@ -187,5 +189,13 @@ public class FunctionProperties implements EnvironmentAware, ApplicationContextA
this.outputHeaderMappingExpression = outputHeaderMappingExpression;
}
public boolean isCopyInputHeaders() {
return copyInputHeaders;
}
public void setCopyInputHeaders(boolean copyInputHeaders) {
this.copyInputHeaders = copyInputHeaders;
}
}
}

14
spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/catalog/SimpleFunctionRegistry.java
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@@ -408,6 +408,8 @@ public class SimpleFunctionRegistry implements FunctionRegistry, FunctionInspect
private boolean isSingleton = true;
private boolean propagateInputHeaders;
/*
* This is primarily to support Stream's ability to access
* un-converted payload (e.g., to evaluate expression on some attribute of a payload)
@@ -433,6 +435,15 @@ public class SimpleFunctionRegistry implements FunctionRegistry, FunctionInspect
this.outputType = this.normalizeType(outputType);
this.functionDefinition = functionDefinition;
this.message = this.inputType != null && FunctionTypeUtils.isMessage(this.inputType);
if (functionProperties != null) {
Map<String, FunctionConfigurationProperties> funcConfiguration = functionProperties.getConfiguration();
if (!CollectionUtils.isEmpty(funcConfiguration)) {
FunctionConfigurationProperties configuration = funcConfiguration.get(functionDefinition);
if (configuration != null) {
propagateInputHeaders = configuration.isCopyInputHeaders();
}
}
}
}
public boolean isSkipOutputConversion() {
@@ -1091,6 +1102,9 @@ public class SimpleFunctionRegistry implements FunctionRegistry, FunctionInspect
}
private boolean isExtractPayload(Message<?> message, Type type) {
if (this.propagateInputHeaders) {
return false;
}
if (this.isRoutingFunction()) {
return false;
}