Barcode Data Format

Available as of Camel 2.14

The barcode data format is based on the zxing library. The goal of this component is to create a barcode image from a String (marshal) and a String from a barcode image (unmarshal). You're free to use all features that zxing offers.

Dependencies

To use the barcode data format in your camel routes you need to add the a dependency on camel-barcode which implements this data format.

If you use maven you could 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-barcode</artifactId>
  <version>x.x.x</version>
</dependency>

Using the Java DSL

First you have to initialize the barcode data fomat class. You can use the default constructor, or one of parameterized (see JavaDoc). The default values are:

// QR-Code default
DataFormat code = new BarcodeDataFormat();

If you want to use zxing hints, you can use the 'addToHintMap' method of your BarcodeDataFormat instance:

code.addToHintMap(DecodeHintType.TRY_HARDER, Boolean.true);

For possible hints, please consult the xzing documentation.

Marshalling

from("direct://code")
  .marshal(code)
  .to("file://barcode_out");

You can call the route from a test class with:

template.sendBody("direct://code", "This is a testmessage!");

You should find inside the 'barcode_out' folder this image:

Unmarshalling

The unmarshaller is generic. For unmarshalling you can use any BarcodeDataFormat instance. If you've two instances, one for (generating) QR-Code and one for PDF417, it doesn't matter which one will be used.

from("file://barcode_in?noop=true")
  .unmarshal(code) // for unmarshalling, the instance doesn't matter
  .to("mock:out");

If you'll paste the QR-Code image above into the 'barcode_in' folder, you should find 'This is a testmessage!' inside the mock. You can find the barcode data format as header variable:

BarcodeFormat