SpringCloud/spring-cloud-function
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Add a sample app with just beans that are Functions

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Make it deployable via its maven coordinates in
spring-cloud-function-deployer (it is deployed by default on start
up right now, but that's just a demo)
This commit is contained in:
Dave Syer
2016-12-16 11:17:23 +00:00
parent 7408664aeb
commit c6736f959b
39 changed files with 1404 additions and 84 deletions
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16
spring-cloud-function-stream/src/main/java/org/springframework/cloud/function/stream/StreamConfiguration.java
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@@ -19,12 +19,13 @@ package org.springframework.cloud.function.stream;
import java.util.function.Function;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cloud.function.invoker.AbstractFunctionInvoker;
import org.springframework.cloud.function.registry.FileSystemFunctionRegistry;
import org.springframework.cloud.function.registry.FunctionRegistry;
import org.springframework.cloud.function.registry.FunctionCatalog;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.binder.Binder;
import org.springframework.cloud.stream.messaging.Processor;
import org.springframework.context.annotation.Bean;
import org.springframework.util.StringUtils;
@@ -36,23 +37,20 @@ import reactor.core.publisher.Flux;
*/
@EnableBinding(Processor.class)
@EnableConfigurationProperties(FunctionConfigurationProperties.class)
@ConditionalOnClass({ Binder.class, AbstractFunctionInvoker.class })
public class StreamConfiguration {
@Autowired
private FunctionConfigurationProperties properties;
@Bean
public FunctionRegistry registry() {
return new FileSystemFunctionRegistry();
}
@Bean
@ConditionalOnProperty("spring.cloud.stream.bindings.input.destination")
public AbstractFunctionInvoker<?,?> invoker(FunctionRegistry registry) {
public AbstractFunctionInvoker<?, ?> invoker(FunctionCatalog registry) {
String name = properties.getName();
Function<Flux<Object>, Flux<Object>> function = (name.indexOf(',') == -1)
? registry.lookupFunction(name)
: registry.composeFunction(StringUtils.commaDelimitedListToStringArray(name));
: registry.composeFunction(
StringUtils.commaDelimitedListToStringArray(name));
return new StreamListeningFunctionInvoker(function);
}

2
spring-cloud-function-stream/src/main/resources/META-INF/spring.factories Normal file
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@@ -0,0 +1,2 @@
org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
org.springframework.cloud.function.stream.StreamConfiguration