Thrift :: Apache Camel

URI format

thrift://service[?options]

Endpoint Options

The Thrift component supports 4 options, which are listed below.

Name	Description	Default	Type
bridgeErrorHandler (consumer)	Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.	false	boolean
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
basicPropertyBinding (advanced)	Deprecated Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities	false	boolean
useGlobalSslContextParameters (security)	Determine if the thrift component is using global SSL context parameters	false	boolean

Name

Description

Default

Type

bridgeErrorHandler (consumer)

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

boolean

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

basicPropertyBinding (advanced)

Deprecated Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

boolean

useGlobalSslContextParameters (security)

Determine if the thrift component is using global SSL context parameters

false

boolean

The Thrift endpoint is configured using URI syntax:

thrift:host:port/service

with the following path and query parameters:

Path Parameters (3 parameters):

Name	Description	Type
host	The Thrift server host name. This is localhost or 0.0.0.0 (if not defined) when being a consumer or remote server host name when using producer.	String
port	Required The Thrift server port	int
service	Required Fully qualified service name from the thrift descriptor file (package dot service definition name)	String

Name

Description

Default

Type

host

The Thrift server host name. This is localhost or 0.0.0.0 (if not defined) when being a consumer or remote server host name when using producer.

String

port

Required The Thrift server port

int

service

Required Fully qualified service name from the thrift descriptor file (package dot service definition name)

String

Query Parameters (14 parameters):

Name	Description	Default	Type
compressionType (common)	Protocol compression mechanism type. There are 2 enums and the value can be one of: NONE, ZLIB	NONE	ThriftCompressionType
exchangeProtocol (common)	Exchange protocol serialization type. There are 4 enums and the value can be one of: BINARY, JSON, SJSON, COMPACT	BINARY	ThriftExchangeProtocol
bridgeErrorHandler (consumer)	Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.	false	boolean
clientTimeout (consumer)	Client timeout for consumers		int
maxPoolSize (consumer)	The Thrift server consumer max thread pool size	10	int
poolSize (consumer)	The Thrift server consumer initial thread pool size	1	int
exceptionHandler (consumer)	To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this option is not in use. By default the consumer will deal with exceptions, that will be logged at WARN or ERROR level and ignored.		ExceptionHandler
exchangePattern (consumer)	Sets the exchange pattern when the consumer creates an exchange. There are 3 enums and the value can be one of: InOnly, InOut, InOptionalOut		ExchangePattern
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
method (producer)	The Thrift invoked method name		String
basicPropertyBinding (advanced)	Whether the endpoint should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities	false	boolean
synchronous (advanced)	Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported).	false	boolean
negotiationType (security)	Security negotiation type. There are 3 enums and the value can be one of: PLAINTEXT, SSL, SASL	PLAINTEXT	ThriftNegotiationType
sslParameters (security)	Configuration parameters for SSL/TLS security negotiation		SSLContextParameters

Name

Description

Default

Type

compressionType (common)

Protocol compression mechanism type. There are 2 enums and the value can be one of: NONE, ZLIB

NONE

ThriftCompressionType

exchangeProtocol (common)

Exchange protocol serialization type. There are 4 enums and the value can be one of: BINARY, JSON, SJSON, COMPACT

BINARY

ThriftExchangeProtocol

bridgeErrorHandler (consumer)

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

boolean

clientTimeout (consumer)

Client timeout for consumers

int

maxPoolSize (consumer)

The Thrift server consumer max thread pool size

10

int

poolSize (consumer)

The Thrift server consumer initial thread pool size

1

int

exceptionHandler (consumer)

To let the consumer use a custom ExceptionHandler. Notice if the option bridgeErrorHandler is enabled then this option is not in use. By default the consumer will deal with exceptions, that will be logged at WARN or ERROR level and ignored.

ExceptionHandler

exchangePattern (consumer)

Sets the exchange pattern when the consumer creates an exchange. There are 3 enums and the value can be one of: InOnly, InOut, InOptionalOut

ExchangePattern

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

method (producer)

The Thrift invoked method name

String

basicPropertyBinding (advanced)

Whether the endpoint should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

boolean

synchronous (advanced)

Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported).

false

boolean

negotiationType (security)

Security negotiation type. There are 3 enums and the value can be one of: PLAINTEXT, SSL, SASL

PLAINTEXT

ThriftNegotiationType

sslParameters (security)

Configuration parameters for SSL/TLS security negotiation

SSLContextParameters

Thrift method parameters mapping

Parameters in the called procedure must be passed as a list of objects inside the message body. The primitives are converted from the objects on the fly. In order to correctly find the corresponding method, all types must be transmitted regardless of the values. Please see an exmaple below, how to pass different parameters to the method with the Camel body

List requestBody = new ArrayList();

requestBody.add((boolean)true);
requestBody.add((byte)THRIFT_TEST_NUM1);
requestBody.add((short)THRIFT_TEST_NUM1);
requestBody.add((int)THRIFT_TEST_NUM1);
requestBody.add((long)THRIFT_TEST_NUM1);
requestBody.add((double)THRIFT_TEST_NUM1);
requestBody.add("empty"); // String parameter
requestBody.add(ByteBuffer.allocate(10)); // binary parameter
requestBody.add(new Work(THRIFT_TEST_NUM1, THRIFT_TEST_NUM2, Operation.MULTIPLY)); // Struct parameter
requestBody.add(new ArrayList<Integer>()); // list paramater
requestBody.add(new HashSet<String>()); // set parameter
requestBody.add(new HashMap<String, Long>()); // map parameter

Object responseBody = template.requestBody("direct:thrift-alltypes", requestBody);

Incoming parameters in the service consumer will also be passed to the message body as a list of objects.

Thrift consumer headers (will be installed after the consumer invocation)

Header name	Description	Possible values
CamelThriftMethodName	Method name handled by the consumer service

Header name

Description

Possible values

CamelThriftMethodName

Method name handled by the consumer service

Examples

Below is a simple synchronous method invoke with host and port parameters

from("direct:thrift-calculate")
.to("thrift://localhost:1101/org.apache.camel.component.thrift.generated.Calculator?method=calculate&synchronous=true");

Below is a simple synchronous method invoke for the XML DSL configuration

<route>
    <from uri="direct:thrift-add" />
    <to uri="thrift://localhost:1101/org.apache.camel.component.thrift.generated.Calculator?method=add&synchronous=true"/>
</route>

Thrift service consumer with asynchronous communication

from("thrift://localhost:1101/org.apache.camel.component.thrift.generated.Calculator")
.to("direct:thrift-service");

It’s possible to automate Java code generation for .thrift files using thrift-maven-plugin, but before start the thrift compiler binary distribution for your operating system must be present on the running host.

For more information, see these resources

Thrift project GitHub https://thrift.apache.org/tutorial/java [Apache Thrift Java tutorial]

Spring Boot Auto-Configuration

When using thrift with Spring Boot make sure to use the following Maven dependency to have support for auto configuration:

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

The component supports 9 options, which are listed below.

Name	Description	Default	Type
camel.component.thrift.autowired-enabled	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
camel.component.thrift.bridge-error-handler	Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.	false	Boolean
camel.component.thrift.enabled	Whether to enable auto configuration of the thrift component. This is enabled by default.		Boolean
camel.component.thrift.lazy-start-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
camel.component.thrift.use-global-ssl-context-parameters	Determine if the thrift component is using global SSL context parameters	false	Boolean
camel.dataformat.thrift.content-type-format	Defines a content type format in which thrift message will be serialized/deserialized from(to) the Java been. The format can either be native or json for either native binary thrift, json or simple json fields representation. The default value is binary.	binary	String
camel.dataformat.thrift.content-type-header	Whether the data format should set the Content-Type header with the type from the data format if the data format is capable of doing so. For example application/xml for data formats marshalling to XML, or application/json for data formats marshalling to JSON etc.	false	Boolean
camel.dataformat.thrift.enabled	Whether to enable auto configuration of the thrift data format. This is enabled by default.		Boolean
camel.dataformat.thrift.instance-class	Name of class to use when unmarshalling		String

Name

Description

Default

Type

camel.component.thrift.autowired-enabled

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

camel.component.thrift.bridge-error-handler

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions occurred while the consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

Boolean

camel.component.thrift.enabled

Whether to enable auto configuration of the thrift component. This is enabled by default.

Boolean

camel.component.thrift.lazy-start-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

camel.component.thrift.use-global-ssl-context-parameters

Determine if the thrift component is using global SSL context parameters

false

Boolean

camel.dataformat.thrift.content-type-format

Defines a content type format in which thrift message will be serialized/deserialized from(to) the Java been. The format can either be native or json for either native binary thrift, json or simple json fields representation. The default value is binary.

binary

String

camel.dataformat.thrift.content-type-header

Whether the data format should set the Content-Type header with the type from the data format if the data format is capable of doing so. For example application/xml for data formats marshalling to XML, or application/json for data formats marshalling to JSON etc.

false

Boolean

camel.dataformat.thrift.enabled

Whether to enable auto configuration of the thrift data format. This is enabled by default.

Boolean

camel.dataformat.thrift.instance-class

Name of class to use when unmarshalling

String