JOLT - Apache Camel

URI format

jolt:specName[?options]

Where specName is the classpath-local URI of the specification to invoke; or the complete URL of the remote specification (eg: file://folder/myfile.vm).

You can append query options to the URI in the following format, ?option=value&option=value&…

Options

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

Name	Description	Default	Type
allowTemplateFromHeader (producer)	Whether to allow to use resource template from header or not (default false). Enabling this allows to specify dynamic templates via message header. However this can be seen as a potential security vulnerability if the header is coming from a malicious user, so use this with care.	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)	Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities	false	boolean
transform (advanced)	Explicitly sets the Transform to use. If not set a Transform specified by the transformDsl will be created		Transform

Name

Description

Default

Type

allowTemplateFromHeader (producer)

Whether to allow to use resource template from header or not (default false). Enabling this allows to specify dynamic templates via message header. However this can be seen as a potential security vulnerability if the header is coming from a malicious user, so use this with care.

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)

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

false

boolean

transform (advanced)

Explicitly sets the Transform to use. If not set a Transform specified by the transformDsl will be created

Transform

The JOLT endpoint is configured using URI syntax:

jolt:resourceUri

with the following path and query parameters:

Path Parameters (1 parameters):

Name	Description	Default	Type
resourceUri	Required Path to the resource. You can prefix with: classpath, file, http, ref, or bean. classpath, file and http loads the resource using these protocols (classpath is default). ref will lookup the resource in the registry. bean will call a method on a bean to be used as the resource. For bean you can specify the method name after dot, eg bean:myBean.myMethod.		String

Name

Description

Default

Type

resourceUri

Required Path to the resource. You can prefix with: classpath, file, http, ref, or bean. classpath, file and http loads the resource using these protocols (classpath is default). ref will lookup the resource in the registry. bean will call a method on a bean to be used as the resource. For bean you can specify the method name after dot, eg bean:myBean.myMethod.

String

Query Parameters (9 parameters):

Name	Description	Default	Type
allowContextMapAll (producer)	Sets whether the context map should allow access to all details. By default only the message body and headers can be accessed. This option can be enabled for full access to the current Exchange and CamelContext. Doing so impose a potential security risk as this opens access to the full power of CamelContext API.	false	boolean
allowTemplateFromHeader (producer)	Whether to allow to use resource template from header or not (default false). Enabling this allows to specify dynamic templates via message header. However this can be seen as a potential security vulnerability if the header is coming from a malicious user, so use this with care.	false	boolean
contentCache (producer)	Sets whether to use resource content cache or not	false	boolean
inputType (producer)	Specifies if the input is hydrated JSON or a JSON String. The value can be one of: Hydrated, JsonString	Hydrated	JoltInputOutputType
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
outputType (producer)	Specifies if the output should be hydrated JSON or a JSON String. The value can be one of: Hydrated, JsonString	Hydrated	JoltInputOutputType
transformDsl (producer)	Specifies the Transform DSL of the endpoint resource. If none is specified Chainr will be used. The value can be one of: Chainr, Shiftr, Defaultr, Removr, Sortr	Chainr	JoltTransformType
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

Name

Description

Default

Type

allowContextMapAll (producer)

Sets whether the context map should allow access to all details. By default only the message body and headers can be accessed. This option can be enabled for full access to the current Exchange and CamelContext. Doing so impose a potential security risk as this opens access to the full power of CamelContext API.

false

boolean

allowTemplateFromHeader (producer)

Whether to allow to use resource template from header or not (default false). Enabling this allows to specify dynamic templates via message header. However this can be seen as a potential security vulnerability if the header is coming from a malicious user, so use this with care.

false

boolean

contentCache (producer)

Sets whether to use resource content cache or not

false

boolean

inputType (producer)

Specifies if the input is hydrated JSON or a JSON String. The value can be one of: Hydrated, JsonString

Hydrated

JoltInputOutputType

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

outputType (producer)

Specifies if the output should be hydrated JSON or a JSON String. The value can be one of: Hydrated, JsonString

Hydrated

JoltInputOutputType

transformDsl (producer)

Specifies the Transform DSL of the endpoint resource. If none is specified Chainr will be used. The value can be one of: Chainr, Shiftr, Defaultr, Removr, Sortr

Chainr

JoltTransformType

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

Samples

For example you could use something like

from("activemq:My.Queue").
  to("jolt:com/acme/MyResponse.json");

And a file based resource:

from("activemq:My.Queue").
  to("jolt:file://myfolder/MyResponse.json?contentCache=true").
  to("activemq:Another.Queue");

You can also specify what specification the component should use dynamically via a header, so for example:

from("direct:in").
  setHeader("CamelJoltResourceUri").constant("path/to/my/spec.json").
  to("jolt:dummy");

Spring Boot Auto-Configuration

When using jolt 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-jolt-starter</artifactId>
  <version>x.x.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>

The component supports 5 options, which are listed below.

Name	Description	Default	Type
camel.component.jolt.allow-template-from-header	Whether to allow to use resource template from header or not (default false). Enabling this allows to specify dynamic templates via message header. However this can be seen as a potential security vulnerability if the header is coming from a malicious user, so use this with care.	false	Boolean
camel.component.jolt.basic-property-binding	Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities	false	Boolean
camel.component.jolt.enabled	Whether to enable auto configuration of the jolt component. This is enabled by default.		Boolean
camel.component.jolt.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.jolt.transform	Explicitly sets the Transform to use. If not set a Transform specified by the transformDsl will be created. The option is a com.bazaarvoice.jolt.Transform type.		String

Name

Description

Default

Type

camel.component.jolt.allow-template-from-header

Whether to allow to use resource template from header or not (default false). Enabling this allows to specify dynamic templates via message header. However this can be seen as a potential security vulnerability if the header is coming from a malicious user, so use this with care.

false

Boolean

camel.component.jolt.basic-property-binding

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

false

Boolean

camel.component.jolt.enabled

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

Boolean

camel.component.jolt.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.jolt.transform

Explicitly sets the Transform to use. If not set a Transform specified by the transformDsl will be created. The option is a com.bazaarvoice.jolt.Transform type.

String