Thank you Julian,
i've tried to install th Aries SPI Bundle:

176 │ Active   │  80 │ 1.3.0              │ Apache Aries SPI Fly Dynamic
Weaving Bundle

But i'm still unable to resolve the drivers.

Ale

On Mon, Jun 8, 2020 at 8:13 PM Julian Feinauer <[email protected]>
wrote:

> Hi Alessio,
>
> if I remember correctly you need the Aries SPI Fly package loaded.
> In Plain PLC4X we use ServiceLoader to discover drivers.
> If you have nothing like Aries SPI Fly which mediates and "immitates" the
> ServiceLoader then you dont get a wiring between the DriverManager and the
> driver.
> But I don’t checked the lastst implementation to be honest.
>
> Perhaps @Robinet, Etienne can help?
>
> Julian
>
> Am 08.06.20, 20:00 schrieb "Alessio Bernesco Làvore" <
> [email protected]>:
>
>     Hello everyone,
>     i've created a simple class reading values from a ModBus PLC.
>
>     I'm trying to use it inside Karaf, but at start the class is unable to
> find
>     the modbus driver. I've compiled and installed in Karaf the
>     "driver-s7-feature", with added the modbus driver:
>
>     <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
>     <features xmlns="http://karaf.apache.org/xmlns/features/v1.6.0";
>     name="driver-s7-feature">
>         <feature name="driver-s7-feature" description="PLC4J:
> Karaf-Features:
>     S7" version="0.8.0.SNAPSHOT">
>             <details>Implementation of the protocol adapters for usage as
> Java
>     library.</details>
>             <bundle>mvn:org.apache.plc4x/plc4j-osgi/0.8.0-SNAPSHOT</bundle>
>             <bundle>mvn:org.osgi/osgi.core/6.0.0</bundle>
>             <bundle>mvn:org.apache.plc4x/plc4j-api/0.8.0-SNAPSHOT</bundle>
>             <bundle>mvn:org.apache.plc4x/plc4j-spi/0.8.0-SNAPSHOT</bundle>
>             <bundle>mvn:io.netty/netty-codec/4.1.47.Final</bundle>
>             <bundle>mvn:io.netty/netty-common/4.1.47.Final</bundle>
>             <bundle>mvn:io.netty/netty-transport/4.1.47.Final</bundle>
>             <bundle>mvn:io.netty/netty-resolver/4.1.47.Final</bundle>
>             <bundle>mvn:commons-beanutils/commons-beanutils/1.9.4</bundle>
>             <bundle>mvn:commons-logging/commons-logging/1.2</bundle>
>
> <bundle>mvn:commons-collections/commons-collections/3.2.2</bundle>
>             <bundle>mvn:com.github.jinahya/bit-io/1.4.3</bundle>
>             <bundle>mvn:commons-codec/commons-codec/1.12</bundle>
>
> <bundle>mvn:org.apache.plc4x/plc4j-driver-s7/0.8.0-SNAPSHOT</bundle>
>
>
> <bundle>mvn:org.apache.plc4x/plc4j-driver-modbus/0.8.0-SNAPSHOT</bundle>
>
>
> <bundle>mvn:org.apache.plc4x/plc4j-transport-tcp/0.8.0-SNAPSHOT</bundle>
>
>
> <bundle>mvn:com.fasterxml.jackson.core/jackson-annotations/2.10.0</bundle>
>             <bundle>mvn:org.apache.commons/commons-lang3/3.9</bundle>
>             <bundle>mvn:io.netty/netty-buffer/4.1.47.Final</bundle>
>             <bundle>mvn:io.vavr/vavr/0.10.2</bundle>
>             <bundle>mvn:io.vavr/vavr-match/0.10.2</bundle>
>         </feature>
>     </features>
>
>     Inside Karaf i can find all the active bundles:
>
>     152 │ Active   │  80 │ 0.8.0.SNAPSHOT     │ PLC4J: API
>     153 │ Active   │  80 │ 0.8.0.SNAPSHOT     │ PLC4J: Driver: S7 (Step7)
>     154 │ Active   │  80 │ 0.8.0.SNAPSHOT     │ PLC4J: OSGi
>     155 │ Active   │  80 │ 0.8.0.SNAPSHOT     │ PLC4J: SPI
>     156 │ Active   │  80 │ 0.8.0.SNAPSHOT     │ PLC4J: Transports: TCP
>     157 │ Active   │  80 │ 6.0.0.201403061837 │ osgi.core
>     164 │ Active   │  80 │ 1.0                │ edgecontroller Bundle
>     165 │ Active   │  80 │ 0.8.0.SNAPSHOT     │ PLC4J: Driver: Modbus
>
>     Anyway at startup the bundle doesnt find any driver:
>
>     2020-06-08T17:47:43,391 | INFO  | FelixStartLevel  | PlcDriverManager
>               | 152 - org.apache.plc4x.plc4j-api - 0.8.0.SNAPSHOT |
>     Instantiating new PLC Driver Manager with class loader
>     sun.misc.Launcher$AppClassLoader@764c12b6
>     2020-06-08T17:47:43,391 | INFO  | FelixStartLevel  | PlcDriverManager
>               | 152 - org.apache.plc4x.plc4j-api - 0.8.0.SNAPSHOT |
> Registering
>     available drivers...
>     2020-06-08T17:47:43,392 | ERROR | FelixStartLevel  | Activator
>                | 164 - edgecontroller - 1.0.0 | Unable to find driver for
>     protocol 'modbus'
>
>     edgecontroller is my bundle, looking at the Karaf log the
> PlcDriverManager
>     is unable to find any driver.
>
>     I cannot understand were i'm failing, could anyone provide some
> insight?
>
>     Thank you,
>     Ale
>
>

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