Chapter 42. BeanIO DataFormat
Available as of Camel version 2.10
The BeanIO Data Format uses BeanIO to handle flat payloads (such as XML, CSV, delimited, or fixed length formats).
BeanIO is configured using a mappings XML file where you define the mapping from the flat format to Objects (POJOs). This mapping file is mandatory to use.
42.1. Options
The BeanIO dataformat supports 9 options which are listed below.
| Name | Default | Java Type | Description |
|---|---|---|---|
| mapping |
| The BeanIO mapping file. Is by default loaded from the classpath. You can prefix with file:, http:, or classpath: to denote from where to load the mapping file. | |
| streamName |
| The name of the stream to use. | |
| ignoreUnidentifiedRecords |
|
| Whether to ignore unidentified records. |
| ignoreUnexpectedRecords |
|
| Whether to ignore unexpected records. |
| ignoreInvalidRecords |
|
| Whether to ignore invalid records. |
| encoding |
| The charset to use. Is by default the JVM platform default charset. | |
| beanReaderErrorHandlerType |
| To use a custom org.apache.camel.dataformat.beanio.BeanIOErrorHandler as error handler while parsing. Configure the fully qualified class name of the error handler. Notice the options ignoreUnidentifiedRecords, ignoreUnexpectedRecords, and ignoreInvalidRecords may not be in use when you use a custom error handler. | |
| unmarshalSingleObject |
|
| This options controls whether to unmarshal as a list of objects or as a single object only. The former is the default mode, and the latter is only intended in special use-cases where beanio maps the Camel message to a single POJO bean. |
| contentTypeHeader |
|
| Whether the data format should set the Content-Type header with the type from the data format if the data format is capable of doing so. For example application/xml for data formats marshalling to XML, or application/json for data formats marshalling to JSon etc. |
42.2. Usage
An example of a mapping file is here.
42.2.1. Using Java DSL
To use the BeanIODataFormat you need to configure the data format with the mapping file, as well the name of the stream.
In Java DSL this can be done as shown below. The streamName is "employeeFile".
Then we have two routes. The first route is for transforming CSV data into a List<Employee> Java objects. Which we then split, so the mock endpoint
receives a message for each row.
The 2nd route is for the reverse operation, to transform a List<Employee> into a stream of CSV data.
The CSV data could for example be as below:
42.2.2. Using XML DSL
To use the BeanIO data format in XML, you need to configure it using the <beanio> XML tag as shown below. The routes is similar to the example above.
42.3. Dependencies
To use BeanIO in your Camel routes you need to add a dependency on camel-beanio which implements this data format.
If you use Maven you can just add the following to your pom.xml, substituting the version number for the latest & greatest release (see the download page for the latest versions).
<dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-beanio</artifactId> <version>2.10.0</version> </dependency>
