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"
<alessio.berne...@gmail.com>:
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
