Core

JVM since0.0.1 Native since0.0.1

Camel core functionality and basic Camel languages: Constant, ExchangeProperty, Header, Ref, Ref, Simple and Tokenize

What’s inside

Please refer to the above links for usage and configuration details.

Maven coordinates

Or add the coordinates to your existing project:

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-core</artifactId>
</dependency>

Check the User guide for more information about writing Camel Quarkus applications.

Additional Camel Quarkus configuration

Simple language

Using the OGNL notation

When using the OGNL notation from the simple language, the camel-quarkus-bean extension should be used.

For instance, the simple expression below is accessing the getAddress() method on the message body of type Client.

---
simple("${body.address}")
---

In such a situation, one should take an additional dependency on the camel-quarkus-bean extension as described here. Note that in native mode, some classes may need to be registered for reflection. In the example above, the Client class needs to be registered for reflection.

Using dynamic type resolution in native mode

When dynamically resolving a type from simple expressions like ${mandatoryBodyAs(TYPE)}, ${type:package.Enum.CONSTANT} or ${body} is TYPE, it may be needed to register some classes for reflection manually.

For instance, the simple expression below is dynamically resolving the type java.nio.ByteBuffer at runtime:

---
simple("${body} is 'java.nio.ByteBuffer'")
---

As such, the class java.nio.ByteBuffer needs to be registered for reflection.

Using the simple language with classpath resources in native mode

If your route is supposed to load a Simple script from classpath, like in the following example

from("direct:start").transform().simple("resource:classpath:mysimple.txt");

then you need to use Quarkus quarkus.native.resources.includes property to include the resource in the native executable as demonstrated below:

quarkus.native.resources.includes = mysimple.txt

More information about selecting resources for inclusion in the native executable can be found at Embedding resource in native executable.

Configuring a custom bean via properties in native mode

When specifying a custom bean via properties in native mode with configuration like #class:* or #type:*, it may be needed to register some classes for reflection manually.

For instance, the custom bean definition below involves the use of reflection for bean instantiation and setter invocation:

---
camel.beans.customBeanWithSetterInjection = #class:org.example.PropertiesCustomBeanWithSetterInjection
camel.beans.customBeanWithSetterInjection.counter = 123
---

As such, the class PropertiesCustomBeanWithSetterInjection needs to be registered for reflection, note that field access could be omitted in this case.

Configuration property Type Default

quarkus.camel.bootstrap.enabled

When set to true, the CamelRuntime will be started automatically.

boolean

true

quarkus.camel.service.discovery.exclude-patterns

A comma-separated list of Ant-path style patterns to match Camel service definition files in the classpath. The services defined in the matching files will not be discoverable via the org.apache.camel.spi.FactoryFinder mechanism. The excludes have higher precedence than includes. The excludes defined here can also be used to veto the discoverability of services included by Camel Quarkus extensions. Example values: META-INF/services/org/apache/camel/foo/*,META-INF/services/org/apache/camel/foo/**/bar

string

quarkus.camel.service.discovery.include-patterns

A comma-separated list of Ant-path style patterns to match Camel service definition files in the classpath. The services defined in the matching files will be discoverable via the org.apache.camel.spi.FactoryFinder mechanism unless the given file is excluded via exclude-patterns. Note that Camel Quarkus extensions may include some services by default. The services selected here added to those services and the exclusions defined in exclude-patterns are applied to the union set. Example values: META-INF/services/org/apache/camel/foo/*,META-INF/services/org/apache/camel/foo/**/bar

string

quarkus.camel.service.registry.exclude-patterns

A comma-separated list of Ant-path style patterns to match Camel service definition files in the classpath. The services defined in the matching files will not be added to Camel registry during application’s static initialization. The excludes have higher precedence than includes. The excludes defined here can also be used to veto the registration of services included by Camel Quarkus extensions. Example values: META-INF/services/org/apache/camel/foo/*,META-INF/services/org/apache/camel/foo/**/bar

string

quarkus.camel.service.registry.include-patterns

A comma-separated list of Ant-path style patterns to match Camel service definition files in the classpath. The services defined in the matching files will be added to Camel registry during application’s static initialization unless the given file is excluded via exclude-patterns. Note that Camel Quarkus extensions may include some services by default. The services selected here added to those services and the exclusions defined in exclude-patterns are applied to the union set. Example values: META-INF/services/org/apache/camel/foo/*,META-INF/services/org/apache/camel/foo/**/bar

string

quarkus.camel.runtime-catalog.components

If true the Runtime Camel Catalog embedded in the application will contain JSON schemas of Camel components available in the application; otherwise component JSON schemas will not be available in the Runtime Camel Catalog and any attempt to access those will result in a RuntimeException. Setting this to false helps to reduce the size of the native image. In JVM mode, there is no real benefit of setting this flag to false except for making the behavior consistent with native mode.

boolean

true

quarkus.camel.runtime-catalog.languages

If true the Runtime Camel Catalog embedded in the application will contain JSON schemas of Camel languages available in the application; otherwise language JSON schemas will not be available in the Runtime Camel Catalog and any attempt to access those will result in a RuntimeException. Setting this to false helps to reduce the size of the native image. In JVM mode, there is no real benefit of setting this flag to false except for making the behavior consistent with native mode.

boolean

true

quarkus.camel.runtime-catalog.dataformats

If true the Runtime Camel Catalog embedded in the application will contain JSON schemas of Camel data formats available in the application; otherwise data format JSON schemas will not be available in the Runtime Camel Catalog and any attempt to access those will result in a RuntimeException. Setting this to false helps to reduce the size of the native image. In JVM mode, there is no real benefit of setting this flag to false except for making the behavior consistent with native mode.

boolean

true

quarkus.camel.runtime-catalog.models

If true the Runtime Camel Catalog embedded in the application will contain JSON schemas of Camel EIP models available in the application; otherwise EIP model JSON schemas will not be available in the Runtime Camel Catalog and any attempt to access those will result in a RuntimeException. Setting this to false helps to reduce the size of the native image. In JVM mode, there is no real benefit of setting this flag to false except for making the behavior consistent with native mode.

boolean

true

quarkus.camel.routes-discovery.enabled

Enable automatic discovery of routes during static initialization.

boolean

true

quarkus.camel.routes-discovery.exclude-patterns

Used for exclusive filtering scanning of RouteBuilder classes. The exclusive filtering takes precedence over inclusive filtering. The pattern is using Ant-path style pattern. Multiple patterns can be specified separated by comma. For example to exclude all classes starting with Bar use: **/Bar* To exclude all routes form a specific package use: com/mycompany/bar/* To exclude all routes form a specific package and its sub-packages use double wildcards: com/mycompany/bar/** And to exclude all routes from two specific packages use: com/mycompany/bar/*,com/mycompany/stuff/*

string

quarkus.camel.routes-discovery.include-patterns

Used for inclusive filtering scanning of RouteBuilder classes. The exclusive filtering takes precedence over inclusive filtering. The pattern is using Ant-path style pattern. Multiple patterns can be specified separated by comma. For example to include all classes starting with Foo use: **/Foo* To include all routes form a specific package use: com/mycompany/foo/* To include all routes form a specific package and its sub-packages use double wildcards: com/mycompany/foo/** And to include all routes from two specific packages use: com/mycompany/foo/*,com/mycompany/stuff/*

string

quarkus.camel.native.resources.exclude-patterns

Replaced by quarkus.native.resources.excludes in Camel Quarkus 2.0.0. Using this property throws an exception at build time.

string

quarkus.camel.native.resources.include-patterns

Replaced by quarkus.native.resources.includes in Camel Quarkus 2.0.0. Using this property throws an exception at build time.

string

quarkus.camel.native.reflection.exclude-patterns

A comma separated list of Ant-path style patterns to match class names that should be excluded from registering for reflection. Use the class name format as returned by the java.lang.Class.getName() method: package segments delimited by period . and inner classes by dollar sign $. This option narrows down the set selected by include-patterns. By default, no classes are excluded. This option cannot be used to unregister classes which have been registered internally by Quarkus extensions.

string

quarkus.camel.native.reflection.include-patterns

A comma separated list of Ant-path style patterns to match class names that should be registered for reflection. Use the class name format as returned by the java.lang.Class.getName() method: package segments delimited by period . and inner classes by dollar sign $. By default, no classes are included. The set selected by this option can be narrowed down by exclude-patterns. Note that Quarkus extensions typically register the required classes for reflection by themselves. This option is useful in situations when the built in functionality is not sufficient. Note that this option enables the full reflective access for constructors, fields and methods. If you need a finer grained control, consider using io.quarkus.runtime.annotations.RegisterForReflection annotation in your Java code. For this option to work properly, at least one of the following conditions must be satisfied: - There are no wildcards (* or /) in the patterns - The artifacts containing the selected classes contain a Jandex index (META-INF/jandex.idx) - The artifacts containing the selected classes are registered for indexing using the quarkus.index-dependency.* family of options in application.properties - e.g. quarkus.index-dependency.my-dep.group-id = org.my-group quarkus.index-dependency.my-dep.artifact-id = my-artifact where my-dep is a label of your choice to tell Quarkus that org.my-group and with my-artifact belong together.

string

quarkus.camel.native.reflection.serialization-enabled

If true, basic classes are registered for serialization; otherwise basic classes won’t be registered automatically for serialization in native mode. The list of classes automatically registered for serialization can be found in CamelSerializationProcessor.BASE_SERIALIZATION_CLASSES. Setting this to false helps to reduce the size of the native image. In JVM mode, there is no real benefit of setting this flag to true except for making the behavior consistent with native mode.

boolean

false

quarkus.camel.csimple.on-build-time-analysis-failure

What to do if it is not possible to extract CSimple expressions from a route definition at build time.

org.apache.camel.quarkus.core.CamelConfig.FailureRemedy

warn

quarkus.camel.event-bridge.enabled

Whether to enable the bridging of Camel events to CDI events. This allows CDI observers to be configured for Camel events. E.g. those belonging to the org.apache.camel.quarkus.core.events, org.apache.camel.quarkus.main.events & org.apache.camel.impl.event packages. Note that this configuration item only has any effect when observers configured for Camel events are present in the application.

boolean

true

quarkus.camel.main.enabled

If true all camel-main features are enabled; otherwise no camel-main features are enabled. See described the Configuration section of Camel Quarkus documentation for more details.

boolean

true

quarkus.camel.main.shutdown.timeout

A timeout (with millisecond precision) to wait for CamelMain#stop() to finish

java.time.Duration

PT3S

quarkus.camel.main.arguments.on-unknown

The action to take when CamelMain encounters an unknown argument. fail - Prints the CamelMain usage statement and throws a RuntimeException ignore - Suppresses any warnings and the application startup proceeds as normal warn - Prints the CamelMain usage statement but allows the application startup to proceed as normal

org.apache.camel.quarkus.core.CamelConfig.FailureRemedy

warn

Configuration property fixed at build time. All other configuration properties are overridable at runtime.