Chapter 42. Barcode DataFormat Available as of Camel version 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. 42.1. 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> 42.2. Barcode Options The Barcode dataformat supports 5 options, which are listed below. Name Default Java Type Description width Integer Width of the barcode height Integer Height of the barcode imageType String Image type of the barcode such as png barcodeFormat String Barcode format such as QR-Code contentTypeHeader false Boolean 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. 42.3. Spring Boot Auto-Configuration The component supports 6 options, which are listed below. Name Description Default Type camel.dataformat.barcode.barcode-format Barcode format such as QR-Code String camel.dataformat.barcode.content-type-header 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. false Boolean camel.dataformat.barcode.enabled Enable barcode dataformat true Boolean camel.dataformat.barcode.height Height of the barcode Integer camel.dataformat.barcode.image-type Image type of the barcode such as png String camel.dataformat.barcode.width Width of the barcode Integer ND 42.4. 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: Parameter Default Value image type (BarcodeImageType) PNG width 100 px height 100 px encoding UTF-8 barcode format (BarcodeFormat) QR-Code // 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. 42.4.1. 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: 42.4.2. 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: Name Type Description BarcodeFormat String Value of com.google.zxing.BarcodeFormat.

Commands:
<dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-barcode</artifactId> <version>x.x.x</version> </dependency>
// QR-Code default DataFormat code = new BarcodeDataFormat();
code.addToHintMap(DecodeHintType.TRY_HARDER, Boolean.true);
from("direct://code") .marshal(code) .to("file://barcode_out");
template.sendBody("direct://code", "This is a testmessage!");
from("file://barcode_in?noop=true") .unmarshal(code) // for unmarshalling, the instance doesn't matter .to("mock:out");