Hello Alessio, Perform the test with the "feature" that you put online, and I can see that the services associated with the drivers are active.
karaf@root()> service:list PlcDriver [org.apache.plc4x.java.api.PlcDriver] ------------------------------------- org.apache.plc4x.driver.code = modbus org.apache.plc4x.driver.name = Modbus service.bundleid = 59 service.id = 98 service.scope = singleton Provided by : PLC4J: Driver: Modbus (59) [org.apache.plc4x.java.api.PlcDriver] ------------------------------------- org.apache.plc4x.driver.code = s7 org.apache.plc4x.driver.name = Siemens S7 (Basic) service.bundleid = 60 service.id = 97 service.scope = singleton Provided by : PLC4J: Driver: S7 (Step7) (60) The solution is to use the "BundleContext" with a filter and take the field "org.apache.plc4x.driver.name " or the field "org.apache.plc4x.driver.code" ( They are the same ). I think that is the way to do it in an OSGi environment. Loading the services with SPI is redundant, and it may happen that the SPI service does not see the PlcDriver Services (typical OSGi problem). My grain of sand, Best regards, El lun., 8 jun. 2020 a las 15:41, Alessio Bernesco Làvore (< alessio.berne...@gmail.com>) escribió: > 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 < > j.feina...@pragmaticminds.de> > 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" < > > 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 > > > > > -- *CEOS Automatización, C.A.* *GALPON SERVICIO INDUSTRIALES Y NAVALES FA, C.A.,* *PISO 1, OFICINA 2, AV. 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