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Camel Extensions for Quarkus Reference

Red Hat Integration 2021.Q4

Camel Extensions for Quarkus provided by Red Hat

Integration Documentation Team Integration Support Team http://access.redhat.com/support

Abstract

Camel Extensions for Quarkus provides Quarkus extensions for many of the Camel components. This reference describes the settings for each of the extensions supported by Red Hat.

Preface

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. We are beginning with these four terms: master, slave, blacklist, and whitelist. Because of the enormity of this endeavor, these changes will be implemented gradually over several upcoming releases. For more details, see our CTO Chris Wright’s message.

Chapter 1. Extensions overview

1.1. Support level definitions

New features, services, and components go through a number of support levels before inclusion in Camel Extensions for Quarkus as fully supported for production use. This is to ensure the right balance between providing the enterprise stability expected of our offerings with the need to allow our customers and partners to experiment with new Camel Extensions for Quarkus technologies while providing feedback to help guide future development activities.

Table 1.1. Camel Extensions for Quarkus support levels

TypeDescription

Community Support

As part of Red Hat’s commitment to upstream first, integration of new extensions into our Camel Extensions for Quarkus distribution begins in the upstream community. While these extensions have been tested and documented upstream, we have not reviewed the maturity of these extensions and they may not be formally supported by Red Hat in future product releases.

Note

Community extensions are listed on the extensions reference page of the Camel Quarkus community project.

Technology Preview

Technology Preview features provide early access to upcoming product innovations, enabling you to test functionality and provide feedback during the development process. However, these features are not fully supported under Red Hat Subscription Level Agreements, may not be functionally complete, and are not intended for production use. As Red Hat considers making future iterations of Technology Preview features generally available, we will attempt to resolve any issues that customers experience when using these features.

Production Support

Production Support extensions are shipped in a formal Red Hat release and are fully supported. There are no documentation gaps and extensions have been tested on all supported configurations.

1.2. Supported extensions

There are 33 extensions.

Table 1.2. Camel Extensions for Quarkus Support Matrix

ExtensionArtifactJVM Support LevelNative Support LevelDescription

AWS 2 DynamoDB

camel-quarkus-aws2-ddb

Production Support

Technology Preview

Store and retrieve data from AWS DynamoDB service or receive messages from AWS DynamoDB Stream using AWS SDK version 2.x.

AWS 2 Kinesis

camel-quarkus-aws2-kinesis

Production Support

Technology Preview

Consume and produce records from AWS Kinesis Streams using AWS SDK version 2.x.

AWS 2 Lambda

camel-quarkus-aws2-lambda

Production Support

Technology Preview

Manage and invoke AWS Lambda functions using AWS SDK version 2.x.

AWS 2 S3 Storage Service

camel-quarkus-aws2-s3

Production Support

Technology Preview

Store and retrieve objects from AWS S3 Storage Service using AWS SDK version 2.x.

AWS 2 Simple Notification System (SNS)

camel-quarkus-aws2-sns

Production Support

Technology Preview

Send messages to an AWS Simple Notification Topic using AWS SDK version 2.x.

AWS 2 Simple Queue Service (SQS)

camel-quarkus-aws2-sqs

Technology Preview

Technology Preview

Sending and receive messages to/from AWS SQS service using AWS SDK version 2.x.

Bean

camel-quarkus-bean

Production Support

Technology Preview

Invoke methods of Java beans

Core

camel-quarkus-core

Production Support

Technology Preview

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

Direct

camel-quarkus-direct

Production Support

Technology Preview

Call another endpoint from the same Camel Context synchronously.

Elasticsearch Rest

camel-quarkus-elasticsearch-rest

Technology Preview

Technology Preview

Send requests to with an ElasticSearch via REST API.

File

camel-quarkus-file

Production Support

Technology Preview

Read and write files.

FTP

camel-quarkus-ftp

Production Support

Technology Preview

Upload and download files to/from FTP or SFTP servers.

HTTP

camel-quarkus-http

Production Support

Technology Preview

Send requests to external HTTP servers using Apache HTTP Client 4.x.

Jira

camel-quarkus-jira

Technology Preview

Technology Preview

Interact with JIRA issue tracker.

JMS

camel-quarkus-jms

Production Support

Technology Preview

Send and receive messages to/from a JMS Queue or Topic.

JTA

camel-quarkus-jta

Production Support

Technology Preview

Enclose Camel routes in the transactions using Java Transaction API (JTA) and Narayana transaction manager

Kafka

camel-quarkus-kafka

Production Support

Technology Preview

Sent and receive messages to/from an Apache Kafka broker.

Kamelet

camel-quarkus-kamelet

Production Support

Technology Preview

The Kamelet Component provides support for interacting with the Camel Route Template engine.

Log

camel-quarkus-log

Production Support

Technology Preview

Log messages to the underlying logging mechanism.

MicroProfile Health

camel-quarkus-microprofile-health

Production Support

Technology Preview

Bridging Eclipse MicroProfile Health with Camel health checks.

MicroProfile Metrics

camel-quarkus-microprofile-metrics

Production Support

Technology Preview

Expose metrics from Camel routes.

MLLP

camel-quarkus-mllp

Production Support

Technology Preview

Communicate with external systems using the MLLP protocol.

Mock

camel-quarkus-mock

Production Support

Technology Preview

Test routes and mediation rules using mocks.

MongoDB

camel-quarkus-mongodb

Technology Preview

Technology Preview

Perform operations on MongoDB documents and collections.

Netty

camel-quarkus-netty

Production Support

Technology Preview

Socket level networking using TCP or UDP with the Netty 4.x.

OpenAPI Java

camel-quarkus-openapi-java

Production Support

Technology Preview

Rest-dsl support for using OpenAPI doc

Platform HTTP

camel-quarkus-platform-http

Production Support

Technology Preview

Expose HTTP endpoints using the HTTP server available in the current platform.

Rest

camel-quarkus-rest

Production Support

Technology Preview

Expose REST services and their OpenAPI Specification or call external REST services.

Salesforce

camel-quarkus-salesforce

Production Support

Technology Preview

Communicate with Salesforce using Java DTOs.

SEDA

camel-quarkus-seda

Production Support

Technology Preview

Asynchronously call another endpoint from any Camel Context in the same JVM.

SQL

camel-quarkus-sql

Production Support

Technology Preview

Perform SQL queries using Spring JDBC.

Timer

camel-quarkus-timer

Production Support

Technology Preview

Generate messages in specified intervals using java.util.Timer.

XQuery

camel-quarkus-saxon

Production Support

Technology Preview

Query and/or transform XML payloads using XQuery and Saxon.

1.3. Supported data formats

There are 8 data formats.

Table 1.3. Camel Extensions for Quarkus Support Matrix

ExtensionArtifactJVM Support LevelNative Support LevelDescription

Avro

camel-quarkus-avro

Production Support

Technology Preview

Serialize and deserialize messages using Apache Avro binary data format.

Avro Jackson

camel-quarkus-jackson-avro

Production Support

Technology Preview

Marshal POJOs to Avro and back using Jackson.

Bindy

camel-quarkus-bindy

Production Support

Technology Preview

Marshal and unmarshal between POJOs and Comma separated values (CSV) format using Camel Bindy Marshal and unmarshal between POJOs and fixed field length format using Camel Bindy Marshal and unmarshal between POJOs and key-value pair (KVP) format using Camel Bindy

HL7

camel-quarkus-hl7

Production Support

Technology Preview

Marshal and unmarshal HL7 (Health Care) model objects using the HL7 MLLP codec.

Jackson

camel-quarkus-jackson

Production Support

Technology Preview

Marshal POJOs to JSON and back using Jackson

JacksonXML

camel-quarkus-jacksonxml

Production Support

Technology Preview

Unmarshal a XML payloads to POJOs and back using XMLMapper extension of Jackson.

Protobuf Jackson

camel-quarkus-jackson-protobuf

Production Support

Technology Preview

Marshal POJOs to Protobuf and back using Jackson.

SOAP dataformat

camel-quarkus-soap

Production Support

Technology Preview

Marshal Java objects to SOAP messages and back.

1.4. Supported languages

There are 12 languages.

Table 1.4. Camel Extensions for Quarkus Support Matrix

ExtensionArtifactJVM Support LevelNative Support LevelDescription

Bean method

camel-quarkus-bean

Production Support

Technology Preview

Invoke methods of Java beans

Constant

camel-quarkus-core

Production Support

Technology Preview

A fixed value set only once during the route startup.

ExchangeProperty

camel-quarkus-core

Production Support

Technology Preview

Get the value of named Camel Exchange property.

File

camel-quarkus-core

Production Support

Technology Preview

For expressions and predicates using the file/simple language.

Header

camel-quarkus-core

Production Support

Technology Preview

Get the value of the named Camel Message header.

HL7 Terser

camel-quarkus-hl7

Production Support

Technology Preview

Marshal and unmarshal HL7 (Health Care) model objects using the HL7 MLLP codec.

Ref

camel-quarkus-core

Production Support

Technology Preview

Look up an expression in the Camel Registry and evaluate it.

Simple

camel-quarkus-core

Production Support

Technology Preview

Evaluate Camel’s built-in Simple language expression against the Camel Exchange.

Tokenize

camel-quarkus-core

Production Support

Technology Preview

Tokenize text payloads using the specified delimiter patterns.

JSON Path

camel-quarkus-jsonpath

Production Support

Technology Preview

Evaluate a JsonPath expression against a JSON message body.

XPath

camel-quarkus-xpath

Production Support

Technology Preview

Evaluate an XPath expression against an XML payload.

XQuery

camel-quarkus-saxon

Production Support

Technology Preview

Query and/or transform XML payloads using XQuery and Saxon.

Chapter 2. Extensions reference

This chapter provides reference information about Camel Extensions for Quarkus.

Important

This Technology Preview release includes a targeted subset of the available Camel Quarkus extensions. Additional extensions will be added to our Camel Extensions for Quarkus distribution in future releases.

2.1. Avro

Serialize and deserialize messages using Apache Avro binary data format.

2.1.1. What’s inside

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

2.1.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.1.3. Additional Camel Quarkus configuration

Beyond standard usages known from vanilla Camel, Camel Quarkus adds the possibility to parse the Avro schema at build time both in JVM and Native mode.

Since Camel Quarkus 2.0.0, the preferred approach to generate Avro classes from Avro schema files is the one coined by the quarkus-avro extension. It requires the following:

  1. Store *.avsc files in a folder named src/main/avro or src/test/avro
  2. In addition to the usual build goal of quarkus-maven-plugin, add the generate-code goal:

    <plugin>
        <groupId>io.quarkus</groupId>
        <artifactId>quarkus-maven-plugin</artifactId>
        <executions>
            <execution>
                <id>generate-code-and-build</id>
                <goals>
                    <goal>generate-code</goal>
                    <goal>build</goal>
                </goals>
            </execution>
        </executions>
    </plugin>

Please see a working configuration in Camel Quarkus Avro integration test and Quarkus Avro integration test.

2.1.3.1. Deprecated: @BuildTimeAvroDataFormat annotation.

Before Camel Quarkus 2.0.0, the @BuildTimeAvroDataFormat annotation was the preferred way to generate Avro entities from Avro schema files.

In the example below, the user.avsc schema resource is first parsed at build time. Then, an AvroDataFormat instance using the previously parsed schema is injected in the buildTimeAvroDataFormat field at runtime. At the end of the day, the injected data format is used from the configure() method in order to marshal an incoming message.

import org.apache.camel.quarkus.component.avro.BuildTimeAvroDataFormat;
...
@BuildTimeAvroDataFormat("user.avsc")
AvroDataFormat buildTimeAvroDataFormat;

@Override
public void configure() {
  from("direct:marshalUsingBuildTimeAvroDataFormat").marshal(buildTimeAvroDataFormat);
}

Since Camel Quarkus 2.0.0, @BuildTimeAvroDataFormat is deprecated. The build time class generation approach from quarkus-avro is preferred. As such, it is advised to store *.avsc files in a folder named 'avro' to have @AvroGenerated class created at build-time by quarkus-avro.

Please see a running configuration at work in the Camel Quarkus Avro integration tests. There is also a quarkus-avro integration test here.

2.2. AWS 2 DynamoDB

Store and retrieve data from AWS DynamoDB service or receive messages from AWS DynamoDB Stream using AWS SDK version 2.x.

2.2.1. What’s inside

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

2.2.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-aws2-ddb</artifactId>
</dependency>

2.2.3. SSL in native mode

This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.2.4. Additional Camel Quarkus configuration

2.2.4.1. Optional integration with Quarkus Amazon DynamoDB

If desired, it is possible to use the Quarkus Amazon DynamoDB extension in conjunction with Camel Quarkus AWS 2 DynamoDB. Note that this is fully optional and not mandatory at all. Please follow the Quarkus documentation but beware of the following caveats:

  1. The client type apache has to be selected by configuring the following property:

    quarkus.dynamodb.sync-client.type=apache
  2. The DynamoDbClient has to be "unremovable" in the sense of Quarkus CDI reference so that Camel Quarkus is able to look it up at runtime. You can reach that, for example, by adding a dummy bean injecting DynamoDbClient:

    import javax.enterprise.context.ApplicationScoped;
    import io.quarkus.arc.Unremovable;
    import software.amazon.awssdk.services.dynamodb.DynamoDbClient;
    
    @ApplicationScoped
    @Unremovable
    class UnremovableDynamoDbClient {
        @Inject
        DynamoDbClient dynamoDbClient;
    }

2.3. AWS 2 Kinesis

Consume and produce records from AWS Kinesis Streams using AWS SDK version 2.x.

2.3.1. What’s inside

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

2.3.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-aws2-kinesis</artifactId>
</dependency>

2.3.3. SSL in native mode

This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.4. AWS 2 Lambda

Manage and invoke AWS Lambda functions using AWS SDK version 2.x.

2.4.1. What’s inside

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

2.4.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-aws2-lambda</artifactId>
</dependency>

2.4.3. Camel Quarkus limitations

The getAlias and listAliases operations need to be used with pojoRequest in order to work. It implies that the request for those operations should be explicitly constructed by hand as shown below.

Example of creating a getAlias request by hand:

.process(new Processor() {
   public void process(Exchange exchange) {
    GetAliasRequest getAliasRequest = GetAliasRequest.builder().functionName(functionName).name(aliasName).build();
    exchange.getIn().setBody(getAliasRequest);
  }})
.to("aws2-lambda:functionName?operation=getAlias&pojoRequest=true");

Example of creating a listAliases request by hand:

.process(new Processor() {
   public void process(Exchange exchange) {
    ListAliasesRequest listAliasesRequest = ListAliasesRequest.builder().functionName(functionName).build();
    exchange.getIn().setBody(listAliasesRequest);
  }})
.to("aws2-lambda:functionName?operation=listAliases&pojoRequest=true");

2.4.4. SSL in native mode

This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.4.5. Additional Camel Quarkus configuration

2.4.5.1. Not possible to leverage quarkus-amazon-lambda by Camel aws2-lambda extension

The quarkus-amazon-lambda extension allows you to use Quarkus to build your AWS Lambdas, whereas Camel component manages (deploy, undeploy, …​) existing functions. Therefore, it is not possible to use quarkus-amazon-lambda as a client for Camel aws2-lambda extension.

2.5. AWS 2 S3 Storage Service

Store and retrieve objects from AWS S3 Storage Service using AWS SDK version 2.x.

2.5.1. What’s inside

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

2.5.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-aws2-s3</artifactId>
</dependency>

2.5.3. SSL in native mode

This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.5.4. Additional Camel Quarkus configuration

2.5.4.1. Optional integration with Quarkus Amazon S3

If desired, it is possible to use the Quarkus Amazon S3 extension in conjunction with Camel Quarkus AWS 2 S3 Storage Service. Note that this is fully optional and not mandatory at all. Please follow the Quarkus documentation but beware of the following caveats:

  1. The client type apache has to be selected by configuring the following property:

    quarkus.s3.sync-client.type=apache
  2. The S3Client has to be "unremovable" in the sense of Quarkus CDI reference so that Camel Quarkus is able to look it up at runtime. You can reach that, for example, by adding a dummy bean injecting S3Client:

    import javax.enterprise.context.ApplicationScoped;
    import io.quarkus.arc.Unremovable;
    import software.amazon.awssdk.services.s3.S3Client;
    
    @ApplicationScoped
    @Unremovable
    class UnremovableS3Client {
        @Inject
        S3Client s3Client;
    }

2.6. AWS 2 Simple Notification System (SNS)

Send messages to an AWS Simple Notification Topic using AWS SDK version 2.x.

2.6.1. What’s inside

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

2.6.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-aws2-sns</artifactId>
</dependency>

2.6.3. SSL in native mode

This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.6.4. Additional Camel Quarkus configuration

2.6.4.1. Optional integration with Quarkus Amazon SNS

If desired, it is possible to use the Quarkus Amazon SNS extension in conjunction with Camel Quarkus AWS 2 Simple Notification System (SNS). Note that this is fully optional and not mandatory at all. Please follow the Quarkus documentation but beware of the following caveats:

  1. The client type apache has to be selected by configuring the following property:

    quarkus.sns.sync-client.type=apache
  2. The SnsClient has to be made "unremovable" in the sense of Quarkus CDI reference so that Camel Quarkus is able to look it up at runtime. You can reach that e.g. by adding a dummy bean injecting SnsClient:

    import javax.enterprise.context.ApplicationScoped;
    import io.quarkus.arc.Unremovable;
    import software.amazon.awssdk.services.sns.SnsClient;
    
    @ApplicationScoped
    @Unremovable
    class UnremovableSnsClient {
        @Inject
        SnsClient snsClient;
    }

2.7. AWS 2 Simple Queue Service (SQS)

Sending and receive messages to/from AWS SQS service using AWS SDK version 2.x.

2.7.1. What’s inside

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

2.7.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-aws2-sqs</artifactId>
</dependency>

2.7.3. SSL in native mode

This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.7.4. Additional Camel Quarkus configuration

2.7.4.1. Optional integration with Quarkus Amazon SQS

If desired, it is possible to use the Quarkus Amazon SQS extension in conjunction with Camel Quarkus AWS 2 Simple Queue Service (SQS). Note that this is fully optional and not mandatory at all. Please follow the Quarkus documentation but beware of the following caveats:

  1. The client type apache has to be selected by configuring the following property:

    quarkus.sqs.sync-client.type=apache
  2. The SqsClient has to be made "unremovable" in the sense of Quarkus CDI reference so that Camel Quarkus is able to look it up at runtime. You can reach that e.g. by adding a dummy bean injecting SqsClient:

    import javax.enterprise.context.ApplicationScoped;
    import io.quarkus.arc.Unremovable;
    import software.amazon.awssdk.services.sqs.SqsClient;
    
    @ApplicationScoped
    @Unremovable
    class UnremovableSqsClient {
        @Inject
        SqsClient sqsClient;
    }

2.8. Bean

Invoke methods of Java beans

2.8.1. What’s inside

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

2.8.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.8.3. Usage

Except for invoking methods of beans available in Camel registry, Bean component and Bean method language can also invoke Quarkus CDI beans.

2.9. Bindy

Marshal and unmarshal between POJOs on one side and Comma separated values (CSV), fixed field length or key-value pair (KVP) formats on the other side using Camel Bindy

2.9.1. What’s inside

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

2.9.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.9.3. Camel Quarkus limitations

When using camel-quarkus-bindy in native mode, only the build machine’s locale is supported.

For instance, on build machines with french locale, the code below:

BindyDataFormat dataFormat = new BindyDataFormat();
dataFormat.setLocale("ar");

formats numbers the arabic way in JVM mode as expected. However, it formats numbers the french way in native mode.

Without further tuning, the build machine’s default locale would be used. Another locale could be specified with the quarkus.native.user-language and quarkus.native.user-country configuration properties.

2.10. Core

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

2.10.1. What’s inside

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

2.10.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.10.3. Additional Camel Quarkus configuration

2.10.3.1. Simple language

2.10.3.1.1. 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.

2.10.3.1.2. 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.

2.10.3.1.3. 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
2.10.3.1.4. 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 propertyTypeDefault

lock quarkus.camel.bootstrap.enabled

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

boolean

true

lock 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

 

lock 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

 

lock 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

 

lock 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

 

lock 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

lock 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

lock 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

lock 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

lock quarkus.camel.routes-discovery.enabled

Enable automatic discovery of routes during static initialization.

boolean

true

lock 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

 

lock 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

 

lock 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

 

lock 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

 

lock 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

 

lock 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

 

lock 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

lock 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

lock 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

lock quarkus.camel.main.enabled

If true all camel-main features are enabled; otherwise no camel-main features are enabled.

boolean

true

lock quarkus.camel.main.shutdown.timeout

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

java.time.Duration

PT3S

lock 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

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

2.11. Direct

Call another endpoint from the same Camel Context synchronously.

2.11.1. What’s inside

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

2.11.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.12. Elasticsearch Rest

Send requests to with an ElasticSearch via REST API.

2.12.1. What’s inside

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

2.12.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.12.3. Usage

This extension leverages the Quarkus ElasticSearch REST Client.

You can choose to configure ElasticSearch via the Quarkus configuration properties and the RestClient will be autowired into the Camel ElasticSearch component.

Or you can configure ElasticSearch via the Camel ElasticSearch component / endpoint options. When doing this, you must disable autowiring in one of the ways outlined below.

Disabling autowiring at the component level.

camel.component.elasticsearch-rest.autowired-enabled = false

Disabling autowiring at the endpoint level.

from("direct:search")
    .to("elasticsearch-rest://elasticsearch?hostAddresses=localhost:9200&operation=Search&indexName=index&autowiredEnabled=false")

Globally disabling autowiring. Note that this disables autowiring for all components.

camel.main.autowired-enabled = false

2.13. File

Read and write files.

2.13.1. What’s inside

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

2.13.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.14. FTP

Upload and download files to/from SFTP, FTP or SFTP servers

2.14.1. What’s inside

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

2.14.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.15. HL7

Marshal and unmarshal HL7 (Health Care) model objects using the HL7 MLLP codec.

2.15.1. What’s inside

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

2.15.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

<dependency>
    <groupId>org.apache.camel.quarkus</groupId>
    <artifactId>camel-quarkus-hl7</artifactId>
</dependency>

2.15.3. Camel Quarkus limitations

For MLLP with TCP, Netty is the only supported means of running an Hl7 MLLP listener. Mina is not supported since it has no GraalVM native support at present.

Optional support for HL7MLLPNettyEncoderFactory & HL7MLLPNettyDecoderFactory codecs can be obtained by adding a dependency in your project pom.xml to camel-quarkus-netty.

2.16. HTTP

Send requests to external HTTP servers using Apache HTTP Client 4.x.

2.16.1. What’s inside

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

2.16.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.16.3. SSL in native mode

This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.16.4. transferException option in native mode

To use the transferException option in native mode, you must enable support for object serialization. For more information, refer to the Registering Classes for Serialization section in the Developing Applications with Camel Extensions for Quarkus guide.

You will also need to enable serialization for the exception classes that you intend to serialize. For example.

@RegisterForReflection(targets = { IllegalStateException.class, MyCustomException.class }, serialization = true)

2.16.5. Additional Camel Quarkus configuration

  • Check the Character Encodings section of the Developing Applications with Camel Extensions for Quarkus guide if you expect your application to send or receive requests using non-default encodings.

2.17. Jackson

Marshal POJOs to JSON and back using Jackson

2.17.1. What’s inside

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

2.17.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.18. Avro Jackson

Marshal POJOs to Avro and back using Jackson.

2.18.1. What’s inside

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

2.18.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.19. Protobuf Jackson

Marshal POJOs to Protobuf and back using Jackson.

2.19.1. What’s inside

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

2.19.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.20. JacksonXML

Unmarshal a XML payloads to POJOs and back using XMLMapper extension of Jackson.

2.20.1. What’s inside

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

2.20.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.21. Jira

Interact with JIRA issue tracker.

2.21.1. What’s inside

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

2.21.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.21.3. SSL in native mode

This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.22. JMS

Sent and receive messages to/from a JMS Queue or Topic.

2.22.1. What’s inside

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

2.22.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.22.3. Usage

2.22.3.1. Message mapping with org.w3c.dom.Node

The Camel JMS component supports message mapping between javax.jms.Message and org.apache.camel.Message. When wanting to convert a Camel message body type of org.w3c.dom.Node, you must ensure that the camel-quarkus-jaxp extension is present on the classpath.

2.22.3.2. Native mode support for javax.jms.ObjectMessage

When sending JMS message payloads as javax.jms.ObjectMessage, you must annotate the relevant classes to be registered for serialization with @RegisterForReflection(serialization = true). Note that this extension automatically sets quarkus.camel.native.reflection.serialization-enabled = true for you. Refer to the native mode user guide for more information.

2.22.4. transferException option in native mode

To use the transferException option in native mode, you must enable support for object serialization. Refer to the native mode user guide for more information.

You will also need to enable serialization for the exception classes that you intend to serialize. For example.

@RegisterForReflection(targets = { IllegalStateException.class, MyCustomException.class }, serialization = true)

2.23. JSON Path

Evaluates a JsonPath expression against a JSON message body.

2.23.1. What’s inside

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

2.23.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.24. JTA

Enclose Camel routes in transactions using Java Transaction API (JTA) and Narayana transaction manager

2.24.1. What’s inside

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

2.24.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.24.3. Usage

This extension should be added when you need to use the transacted() EIP in the router. It leverages the transaction capabilities provided by the narayana-jta extension in Quarkus.

Refer to the Quarkus Transaction guide for the more details about transaction support. For a simple usage:

from("direct:transaction")
    .transacted()
    .to("sql:INSERT INTO A TABLE ...?dataSource=ds1")
    .to("sql:INSERT INTO A TABLE ...?dataSource=ds2")
    .log("all data are in the ds1 and ds2")

Support is provided for various transaction policies.

PolicyDescription

PROPAGATION_MANDATORY

Support a current transaction; throw an exception if no current transaction exists.

PROPAGATION_NEVER

Do not support a current transaction; throw an exception if a current transaction exists.

PROPAGATION_NOT_SUPPORTED

Do not support a current transaction; rather always execute non-transactionally.

PROPAGATION_REQUIRED

Support a current transaction; create a new one if none exists.

PROPAGATION_REQUIRES_NEW

Create a new transaction, suspending the current transaction if one exists.

PROPAGATION_SUPPORTS

Support a current transaction; execute non-transactionally if none exists.

2.25. Kafka

Sent and receive messages to/from an Apache Kafka broker.

2.25.1. What’s inside

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

2.25.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.25.3. Additional Camel Quarkus configuration

Configuration propertyTypeDefault

quarkus.camel.kafka.kubernetes-service-binding.merge-configuration

If true then any Kafka configuration properties discovered by the Quarkus Kubernetes Service Binding extension (if configured) will be merged with those set via Camel Kafka component or endpoint options. If false then any Kafka configuration properties discovered by the Quarkus Kubernetes Service Binding extension are ignored, and all of the Kafka component configuration is driven by Camel.

boolean

true

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

2.26. Kamelet

Materialize route templates

2.26.1. What’s inside

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

2.26.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.26.3. Usage

2.26.3.1. Pre-load Kamelets at build-time

This extension allows you to pre-load a set of Kamelets at build time using the quarkus.camel.kamelet.identifiers property.

2.26.4. Additional Camel Quarkus configuration

Configuration propertyTypeDefault

lock quarkus.camel.kamelet.identifiers

List of kamelets identifiers to pre-load at build time. Each individual identifier is used to set the related org.apache.camel.model.RouteTemplateDefinition id.

string

 

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

2.27. Log

Log messages to the underlying logging mechanism.

2.27.1. What’s inside

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

2.27.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.28. MicroProfile Health

Bridging Eclipse MicroProfile Health with Camel health checks

2.28.1. What’s inside

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

2.28.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.28.3. Usage

By default, classes extending AbstractHealthCheck are registered as both liveness and readiness checks. You can override the isReadiness method to control this behaviour.

Any checks provided by your application are automatically discovered and bound to the Camel registry. They will be available via the Quarkus health endpoints /q/health/live and /q/health/ready.

You can also provide custom HealthCheckRepository implementations and these are also automatically discovered and bound to the Camel registry for you.

Refer to the Quarkus health guide for further information.

2.28.3.1. Provided health checks

Some checks are automatically registered for your application.

2.28.3.1.1. Camel Context Health

Inspects the Camel Context status and causes the health check status to be DOWN if the status is anything other than 'Started'.

2.28.3.1.2. Camel Route Health

Inspects the status of each route and causes the health check status to be DOWN if any route status is not 'Started'.

2.28.4. Additional Camel Quarkus configuration

Configuration propertyTypeDefault

lock quarkus.camel.health.enabled

Set whether to enable Camel health checks

boolean

true

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

2.29. MicroProfile Metrics

Expose metrics from Camel routes.

2.29.1. What’s inside

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

2.29.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.29.3. Usage

The microprofile-metrics component automatically exposes a set of Camel application metrics. Some of these include:

2.29.3.1. Camel Context metrics

Metric NameType

camel.context.status

The status of the Camel Context represented by the ServiceStatus enum ordinal

Gauge

camel.context.uptime

The Camel Context uptime in milliseconds

Gauge

camel.context.exchanges.completed.total

The total number of completed exchanges

Counter

camel.context.exchanges.failed.total

The total number of failed exchanges

Counter

camel.context.exchanges.inflight.total

The total number of inflight exchanges

Gauge

camel.context.exchanges.total

The total number of all exchanges

Counter

camel.context.externalRedeliveries.total

The total number of all external redeliveries

Counter

camel.context.failuresHandled.total

The total number of all failures handled

Counter

2.29.3.2. Camel Route metrics

Metric NameType

camel.route.count

The number of routes

Gauge

camel.route.running.count

The number of running routes

Gauge

camel.route.exchanges.completed.total

The total number of completed exchanges for the route

Counter

camel.route.exchanges.failed.total

The total number of failed exchanges for the route

Counter

camel.route.exchanges.inflight.total

The total number of inflight exchanges for the route

Gauge

camel.route.exchanges.total

The total number of all exchanges for the route

Counter

camel.route.externalRedeliveries.total

The total number of all external redeliveries for the route

Counter

camel.route.failuresHandled.total

The total number of all failures handled for the route

Counter

All metrics are tagged with the name of the Camel Context and the id of the route where applicable.

You can also produce your own customized metrics in your Camel routes. For more information, refer to the microprofile-metrics component documentation.

Metrics are exposed to Quarkus as application metrics and they can be browsed at http://localhost:8080/q/metrics/application.

2.29.4. Additional Camel Quarkus configuration

Configuration propertyTypeDefault

lock quarkus.camel.metrics.enable-route-policy

Set whether to enable the MicroProfileMetricsRoutePolicyFactory for capturing metrics on route processing times.

boolean

true

lock quarkus.camel.metrics.enable-message-history

Set whether to enable the MicroProfileMetricsMessageHistoryFactory for capturing metrics on individual route node processing times. Depending on the number of configured route nodes, there is the potential to create a large volume of metrics. Therefore, this option is disabled by default.

boolean

false

lock quarkus.camel.metrics.enable-exchange-event-notifier

Set whether to enable the MicroProfileMetricsExchangeEventNotifier for capturing metrics on exchange processing times.

boolean

true

lock quarkus.camel.metrics.enable-route-event-notifier

Set whether to enable the MicroProfileMetricsRouteEventNotifier for capturing metrics on the total number of routes and total number of routes running.

boolean

true

lock quarkus.camel.metrics.enable-camel-context-event-notifier

Set whether to enable the MicroProfileMetricsCamelContextEventNotifier for capturing metrics about the CamelContext, such as status and uptime.

boolean

true

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

2.30. MLLP

Communicate with external systems using the MLLP protocol.

2.30.1. What’s inside

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

2.30.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.30.3. Additional Camel Quarkus configuration

2.31. Mock

Test routes and mediation rules using mocks.

2.31.1. What’s inside

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

2.31.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.31.3. Usage

To use camel-mock capabilities in tests it is required to get access to MockEndpoint instances.

CDI injection could be used for accessing instances (see Quarkus documentation). You can inject camelContext into test using @Inject annotation. Camel context can be then used for obtaining mock endpoints. See the following example:

import javax.inject.Inject;

import org.apache.camel.CamelContext;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.component.mock.MockEndpoint;
import org.junit.jupiter.api.Test;

import io.quarkus.test.junit.QuarkusTest;

@QuarkusTest
public class MockJvmTest {

    @Inject
    CamelContext camelContext;

    @Inject
    ProducerTemplate producerTemplate;

    @Test
    public void test() throws InterruptedException {

        producerTemplate.sendBody("direct:start", "Hello World");

        MockEndpoint mockEndpoint = camelContext.getEndpoint("mock:result", MockEndpoint.class);
        mockEndpoint.expectedBodiesReceived("Hello World");

        mockEndpoint.assertIsSatisfied();
    }
}

Route used for the example test:

import javax.enterprise.context.ApplicationScoped;

import org.apache.camel.builder.RouteBuilder;

@ApplicationScoped
public class MockRoute extends RouteBuilder {

    @Override
    public void configure() throws Exception {
        from("direct:start").to("mock:result");
    }
}

2.31.4. Camel Quarkus limitations

Injection of CDI beans (described in Usage) does not work in native mode.

In the native mode the test and the application under test are running in two different processes and it is not possible to share a mock bean between them (see Quarkus documentation).

2.32. MongoDB

Perform operations on MongoDB documents and collections.

2.32.1. What’s inside

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

2.32.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.32.3. Additional Camel Quarkus configuration

The extension leverages the Quarkus MongoDB Client extension. The Mongo client can be configured via the Quarkus MongoDB Client configuration options.

The Camel Quarkus MongoDB extension automatically registers a MongoDB client bean named camelMongoClient. This can be referenced in the mongodb endpoint URI connectionBean path parameter. For example:

from("direct:start")
.to("mongodb:camelMongoClient?database=myDb&collection=myCollection&operation=findAll")

If your application needs to work with multiple MongoDB servers, you can create a "named" client and reference in your route by injecting a client and the related configuration as explained in the Quarkus MongoDB extension client injection. For example:

//application.properties
quarkus.mongodb.mongoClient1.connection-string = mongodb://root:example@localhost:27017/
//Routes.java

    @ApplicationScoped
    public class Routes extends RouteBuilder {
        @Inject
        @MongoClientName("mongoClient1")
        MongoClient mongoClient1;

        @Override
        public void configure() throws Exception {
            from("direct:defaultServer")
                .to("mongodb:camelMongoClient?database=myDb&collection=myCollection&operation=findAll")

            from("direct:otherServer")
                .to("mongodb:mongoClient1?database=myOtherDb&collection=myOtherCollection&operation=findAll");
        }
    }

Note that when using named clients, the "default" camelMongoClient bean will still be produced. Refer to the Quarkus documentation on Multiple MongoDB Clients for more information.

2.33. Netty

Socket level networking using TCP or UDP with the Netty 4.x.

2.33.1. What’s inside

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

2.33.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.34. OpenAPI Java

Expose OpenAPI resources defined in Camel REST DSL

2.34.1. What’s inside

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

2.34.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.34.3. Camel Quarkus limitations

The apiContextIdListing configuration option is not supported. Since multiple CamelContexts are not supported and Quarkus applications run standalone, there is no scenario where attempting to resolve OpenApi specifications for a specific CamelContext would be useful. It also introduces some additional overhead of requiring JMX (which is not supported in native mode) & additional Camel Quarkus extensions for processing XML.

2.35. Platform HTTP

This extension allows for creating HTTP endpoints for consuming HTTP requests.

It is built on top of Eclipse Vert.x Web service provided by the quarkus-vertx-web extension.

2.35.1. What’s inside

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

2.35.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.35.3. Usage

2.35.3.1. Basic Usage

Serve all HTTP methods on the /hello endpoint:

from("platform-http:/hello").setBody(simple("Hello ${header.name}"));

Serve only GET requests on the /hello endpoint:

from("platform-http:/hello?httpMethodRestrict=GET").setBody(simple("Hello ${header.name}"));

2.35.3.2. Using platform-http via Camel REST DSL

To be able to use Camel REST DSL with the platform-http component, add camel-quarkus-rest in addition to camel-quarkus-platform-http to your pom.xml:

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

Then you can use the Camel REST DSL:

rest()
    .get("/my-get-endpoint")
        .route()
        .setBody(constant("Hello from /my-get-endpoint"))
        .endRest()
    .post("/my-post-endpoint")
        .route()
        .setBody(constant("Hello from /my-post-endpoint"))
        .endRest();

2.35.3.3. Handling multipart/form-data file uploads

You can restrict the uploads to certain file extensions by white listing them:

from("platform-http:/upload/multipart?fileNameExtWhitelist=html,txt&httpMethodRestrict=POST")
    .to("log:multipart")
    .process(e -> {
        final AttachmentMessage am = e.getMessage(AttachmentMessage.class);
        if (am.hasAttachments()) {
            am.getAttachments().forEach((fileName, dataHandler) -> {
                try (InputStream in = dataHandler.getInputStream()) {
                    // do something with the input stream
                } catch (IOException ioe) {
                    throw new RuntimeException(ioe);
                }
            });
        }
    });

Also check the quarkus.http.body.* configuration options in Quarkus documentation, esp. quarkus.http.body.handle-file-uploads, quarkus.http.body.uploads-directory and quarkus.http.body.delete-uploaded-files-on-end.

2.35.4. Additional Camel Quarkus configuration

2.35.4.1. Platform HTTP server configuration

Configuration of the platform HTTP server is managed by Quarkus. Refer to the Quarkus HTTP configuration guide for the full list of configuration options.

To configure SSL for the Platform HTTP server, follow the secure connections with SSL guide. Note that configuring the server for SSL with SSLContextParameters is not currently supported.

2.35.4.2. Character encodings

  • Check the Character Encodings section of the Developing Applications with Camel Extensions for Quarkus guide if you expect your application to send or receive requests using non-default encodings.

2.36. Rest

Expose REST services and their OpenAPI Specification or call external REST services.

2.36.1. What’s inside

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

2.36.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.36.3. Additional Camel Quarkus configuration

This extension depends on the Platform HTTP extension and configures it as the component that provides the REST transport.

2.36.3.1. Path parameters containing special characters with platform-http

When using the platform-http REST transport, some characters are not allowed within path parameter names. This includes the '-' and '$' characters.

In order to make the below example REST /dashed/param route work correctly, a system property is required io.vertx.web.route.param.extended-pattern=true.

import org.apache.camel.builder.RouteBuilder;

public class CamelRoute extends RouteBuilder {

    @Override
    public void configure() {
        rest("/api")
            // Dash '-' is not allowed by default
            .get("/dashed/param/{my-param}")
            .route()
                .setBody(constant("Hello World"))
            .endRest()

            // The non-dashed path parameter works by default
            .get("/undashed/param/{myParam}")
            .route()
                .setBody(constant("Hello World"))
            .endRest();
    }
}

There is some more background to this in the Vert.x Web documentation.

2.36.3.2. Configuring alternate REST transport providers

To use another REST transport provider, such as netty-http or servlet, you need to add the respective extension as a dependency to your project and set the provider in your RouteBuilder. E.g. for servlet, you’d have to add the org.apache.camel.quarkus:camel-quarkus-servlet dependency and the set the provider as follows:

import org.apache.camel.builder.RouteBuilder;

public class CamelRoute extends RouteBuilder {

    @Override
    public void configure() {
        restConfiguration()
                .component("servlet");
        ...
    }
}

2.37. Salesforce

Communicate with Salesforce using Java DTOs.

2.37.1. What’s inside

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

2.37.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.37.3. Usage

2.37.3.1. Generating Salesforce DTOs with the salesforce-maven-plugin

Note

The camel-salesforce-maven-plugin is only covered by community support.

To generate Salesforce DTOs for your project, use the salesforce-maven-plugin. The example code snippet below creates a single DTO for the Account object.

<plugin>
    <groupId>org.apache.camel.maven</groupId>
    <artifactId>camel-salesforce-maven-plugin</artifactId>
    <version>3.11.1</version>
    <executions>
        <execution>
            <goals>
                <goal>generate</goal>
            </goals>
            <configuration>
                <clientId>${env.SALESFORCE_CLIENTID}</clientId>
                <clientSecret>${env.SALESFORCE_CLIENTSECRET}</clientSecret>
                <userName>${env.SALESFORCE_USERNAME}</userName>
                <password>${env.SALESFORCE_PASSWORD}</password>
                <loginUrl>https://login.salesforce.com</loginUrl>
                <packageName>org.apache.camel.quarkus.component.salesforce.generated</packageName>
                <outputDirectory>src/main/java</outputDirectory>
                <includes>
                    <include>Account</include>
                </includes>
            </configuration>
        </execution>
    </executions>
</plugin>

2.37.3.2. Register additional Salesforce classes for reflection in native mode

For native mode, it is necessary to register some additional classes for reflection.

  1. Classes in package org.apache.camel.component.salesforce.api.dto
  2. DTO classes generated by the camel-salesforce-maven-plugin

To do this, add the following configuration property to application.properties. Replace org.my.custom.dto.package with your custom DTO package (if applicable, othwerwise it can be be removed).

quarkus.camel.native.reflection.include-patterns=org.apache.camel.component.salesforce.api.dto.*,org.my.custom.dto.package.*

2.37.4. SSL in native mode

This extension auto-enables SSL support in native mode. Hence you do not need to add quarkus.ssl.native=true to your application.properties yourself. See also Quarkus SSL guide.

2.38. XQuery

Query and/or transform XML payloads using XQuery and Saxon.

2.38.1. What’s inside

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

2.38.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.38.3. Additional Camel Quarkus configuration

This component is able to load XQuery definitions from classpath. To make it work also in native mode, you need to explicitly embed the queries in the native executable by using the quarkus.native.resources.includes property.

For instance, the two routes below load an XQuery script from two classpath resources named myxquery.txt and another-xquery.txt respectively:

from("direct:start").transform().xquery("resource:classpath:myxquery.txt", String.class);
from("direct:start").to("xquery:another-xquery.txt");

To include these (an possibly other queries stored in .txt files) in the native image, you would have to add something like the following to your application.properties file:

quarkus.native.resources.includes = *.txt

2.39. SEDA

Asynchronously call another endpoint from any Camel Context in the same JVM.

2.39.1. What’s inside

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

2.39.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.40. SOAP dataformat

Marshal Java objects to SOAP messages and back.

2.40.1. What’s inside

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

2.40.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.41. SQL

Perform SQL queries.

2.41.1. What’s inside

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

2.41.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.41.3. Additional Camel Quarkus configuration

2.41.3.1. Configuring a DataSource

This extension leverages Quarkus Agroal for DataSource support. Setting up a DataSource can be achieved via configuration properties.

quarkus.datasource.db-kind=postgresql
quarkus.datasource.username=your-username
quarkus.datasource.password=your-password
quarkus.datasource.jdbc.url=jdbc:postgresql://localhost:5432/your-database
quarkus.datasource.jdbc.max-size=16

The Camel SQL component will automatically resolve the DataSource bean from the registry. When configuring multiple datasources, you can specify which one is to be used on an SQL endpoint via the URI options datasource or dataSourceRef. Refer to the SQL component documentation for more details.

2.41.3.1.1. Zero configuration with Quarkus Dev Services

In dev and test mode you can take advantage of Configuration Free Databases. The Camel SQL component will be automatically configured to use a DataSource that points to a local containerized instance of the database matching the JDBC driver type that you have selected.

2.41.3.2. SQL scripts

When configuring sql or sql-stored endpoints to reference script files from the classpath, set the following configuration property to ensure that they are available in native mode.

quarkus.native.resources.includes = queries.sql, sql/*.sql

2.41.3.3. SQL Aggregator

If your exchanges in native mode contain objects, which are not automatically registered for serialization (see documentation), you have to register them manually (see documentation)

2.42. Timer

Generate messages in specified intervals using java.util.Timer.

2.42.1. What’s inside

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

2.42.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.43. XPath

Evaluates an XPath expression against an XML payload.

2.43.1. What’s inside

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

2.43.2. Maven coordinates

Create a new project with this extension on code.quarkus.redhat.com

Or add the coordinates to your existing project:

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

2.43.3. Additional Camel Quarkus configuration

This component is able to load xpath expressions from classpath resources. To make it work also in native mode, you need to explicitly embed the expression files in the native executable by using the quarkus.native.resources.includes property.

For instance, the route below would load an XPath expression from a classpath resource named myxpath.txt:

from("direct:start").transform().xpath("resource:classpath:myxpath.txt");

To include this (an possibly other expressions stored in .txt files) in the native image, you would have to add something like the following to your application.properties file:

quarkus.native.resources.includes = *.txt

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