File Watch Extension

Since Camel Quarkus 1.0.0.M5

Watch file modification events in a folder. Based on gmethvin/directory-watcher.

Maven users will need to add the following dependency to their pom.xml for this extension.

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

Usage

Please refer to the File Watch component page.

Camel Quarkus specific behavior

The underlying Camel component configures the Directory Watcher in a platform specific way:

  • On Mac, the io.methvin.watchservice.MacOSXListeningWatchService is used that depends on net.java.dev.jna:jna.

  • Other platforms use java.nio.file.WatchService provided by the Java Runtime.

Because JNA is not supported on GraalVM yet, we made the component to behave differently on Camel Quarkus: We are substituting the respective Directory Watcher method do use the stock java.nio.file.WatchService also on Mac.