Huawei Cloud FunctionGraph

Since Camel 3.11

Only producer is supported

Huawei Cloud FunctionGraph component allows you to integrate with FunctionGraph provided by Huawei Cloud.

Maven users will need to add the following dependency to their pom.xml for this component:

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-huaweicloud-functiongraph</artifactId>
    <version>x.x.x</version>
    <!-- use the same version as your Camel core version -->
</dependency>

URI Format

hwcloud-functiongraph:operation[?options]

URI Options

The Huawei Cloud FunctionGraph component supports 2 options, which are listed below.

Name Description Default Type

lazyStartProducer (producer)

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

boolean

autowiredEnabled (advanced)

Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.

true

boolean

The Huawei Cloud FunctionGraph endpoint is configured using URI syntax:

hwcloud-functiongraph:operation

with the following path and query parameters:

Path Parameters (1 parameters):

Name Description Default Type

operation

Required Operation to be performed

String

Query Parameters (14 parameters):

Name Description Default Type

endpoint (producer)

FunctionGraph url. Carries higher precedence than region parameter based client initialization

String

functionName (producer)

Name of the function to invoke

String

functionPackage (producer)

Functions that can be logically grouped together

default

String

lazyStartProducer (producer)

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

boolean

projectId (producer)

Required Cloud project ID

String

region (producer)

Required FunctionGraph service region. This is lower precedence than endpoint based configuration

String

serviceKeys (producer)

Configuration object for cloud service authentication

ServiceKeys

proxyHost (proxy)

Proxy server ip/hostname

String

proxyPassword (proxy)

Proxy authentication password

String

proxyPort (proxy)

Proxy server port

int

proxyUser (proxy)

Proxy authentication user

String

authenticationKey (security)

Required Authentication key for the cloud user

String

ignoreSslVerification (security)

Ignore SSL verification

false

boolean

secretKey (security)

Required Secret key for the cloud user

String

Usage

Message properties evaluated by the FunctionGraph producer

Header Type Description

CamelHwCloudFgOperation

String

Name of operation to invoke

CamelHwCloudFgFunction

String

Name of function to invoke operation on

CamelHwCloudFgPackage

String

Name of the function package

CamelHwCloudFgXCffLogType

String

Type of log to be returned by FunctionGraph operation

If the operation, function name, or function package are set, they will override their corresponding query parameter.

Message properties set by the FunctionGraph producer

Header Type Description

CamelHwCloudFgXCffLogs

String

Unique log returned by FunctionGraph after processing the request if CamelHwCloudFgXCffLogType is set

List of Supported FunctionGraph Operations

  • invokeFunction - to invoke a serverless function

Using ServiceKey Configuration Bean

Authentication key and secret keys are required to authenticate against cloud FunctionGraph service. You can avoid having them being exposed and scattered over in your endpoint uri by wrapping them inside a bean of class org.apache.camel.component.huaweicloud.functiongraph.models.ServiceKeys. Add it to the registry and let Camel look it up by referring the object via endpoint query parameter serviceKeys.

Check the following code snippets:

<bean id="myServiceKeyConfig" class="org.apache.camel.component.huaweicloud.functiongraph.models.ServiceKeys">
   <property name="authenticationKey" value="your_authentication_key" />
   <property name="secretKey" value="your_secret_key" />
</bean>
from("direct:triggerRoute")
 .setProperty(FunctionGraphProperties.OPERATION, constant("invokeFunction"))
 .setProperty(FunctionGraphProperties.FUNCTION_NAME ,constant("your_function_name"))
 .setProperty(FunctionGraphProperties.FUNCTION_PACKAGE, constant("your_function_package"))
 .to("hwcloud-functiongraph:invokeFunction?projectId=9071a38e7f6a4ba7b7bcbeb7d4ea6efc&region=cn-north-4&serviceKeys=#myServiceKeyConfig")
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