org.springframework.cloud.function.context.catalog

Class SimpleFunctionRegistry

java.lang.Object

org.springframework.cloud.function.context.catalog.SimpleFunctionRegistry

All Implemented Interfaces:

FunctionInspector, FunctionCatalog, FunctionRegistry

Direct Known Subclasses:

BeanFactoryAwareFunctionRegistry

public class SimpleFunctionRegistry
extends Object
implements FunctionRegistry, FunctionInspector

Implementation of FunctionCatalog and FunctionRegistry which does not depend on Spring's BeanFactory. Each function must be registered with it explicitly to benefit from features such as type conversion, composition, POJO etc.

Author:

Oleg Zhurakousky, Roman Samarev

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	SimpleFunctionRegistry.FunctionInvocationWrapper
static class	SimpleFunctionRegistry.PassThruFunction

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.commons.logging.Log	logger

Constructor Summary

Constructors

Constructor and Description
SimpleFunctionRegistry(org.springframework.core.convert.ConversionService conversionService, org.springframework.messaging.converter.CompositeMessageConverter messageConverter, JsonMapper jsonMapper)
SimpleFunctionRegistry(org.springframework.core.convert.ConversionService conversionService, org.springframework.messaging.converter.CompositeMessageConverter messageConverter, JsonMapper jsonMapper, FunctionProperties functionProperties, FunctionInvocationHelper<org.springframework.messaging.Message<?>> functionInvocationHelper)

Method Summary

Modifier and Type	Method and Description
void	addMessageConverters(Collection<org.springframework.messaging.converter.MessageConverter> messageConverters) Will add provided MessageConverters to the head of the stack of the existing MessageConverters.
protected boolean	containsFunction(String functionName)
Set<String>	getNames(Class<?> type)
FunctionRegistration<?>	getRegistration(Object function)
<T> T	lookup(Class<?> type, String functionDefinition, String... expectedOutputMimeTypes)
<T> void	register(FunctionRegistration<T> registration)
int	size() Return the count of functions registered in this catalog.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.springframework.cloud.function.context.FunctionCatalog

lookup, lookup, lookup

Methods inherited from interface org.springframework.cloud.function.context.catalog.FunctionInspector

getInputType, getInputWrapper, getName, getOutputType, getOutputWrapper, isMessage

Field Detail

logger

protected org.apache.commons.logging.Log logger

Constructor Detail

SimpleFunctionRegistry

public SimpleFunctionRegistry(org.springframework.core.convert.ConversionService conversionService,
                              org.springframework.messaging.converter.CompositeMessageConverter messageConverter,
                              JsonMapper jsonMapper,
                              @Nullable
                              FunctionProperties functionProperties,
                              @Nullable
                              FunctionInvocationHelper<org.springframework.messaging.Message<?>> functionInvocationHelper)

SimpleFunctionRegistry

public SimpleFunctionRegistry(org.springframework.core.convert.ConversionService conversionService,
                              org.springframework.messaging.converter.CompositeMessageConverter messageConverter,
                              JsonMapper jsonMapper)

Method Detail

addMessageConverters

public void addMessageConverters(Collection<org.springframework.messaging.converter.MessageConverter> messageConverters)

Will add provided MessageConverters to the head of the stack of the existing MessageConverters.

Parameters:

messageConverters - list of MessageConverters.

getRegistration

public FunctionRegistration<?> getRegistration(Object function)

Specified by:

getRegistration in interface FunctionInspector

lookup

public <T> T lookup(Class<?> type,
                    String functionDefinition,
                    String... expectedOutputMimeTypes)

Specified by:

lookup in interface FunctionCatalog

register

public <T> void register(FunctionRegistration<T> registration)

Specified by:

register in interface FunctionRegistry

getNames

public Set<String> getNames(Class<?> type)

Specified by:

getNames in interface FunctionCatalog

size

public int size()

Description copied from interface: FunctionCatalog

Return the count of functions registered in this catalog.

Specified by:

size in interface FunctionCatalog

Returns:

the count of functions registered in this catalog

containsFunction

protected boolean containsFunction(String functionName)