The bootstrap code is as vanilla as it can get:
>> ServerRuntime cayenneRuntime = ServerRuntime.builder()
>> .addConfig("cayenne-project.xml")
>> .build();
Missing ObjectContextFactory means ServerModule is not loaded in the
environment. Since 4.1 (BTW, which version of Cayenne are we talking about?),
ServerModule is loaded by processing
"META-INF/services/org.apache.cayenne.configuration.server.CayenneServerModuleProvider"
files from the classpath jars. So there's something about Spigot's classpath
that prevents this code in ModuleLoader from returning proper resources:
for (ModuleProvider provider : ServiceLoader.load(providerClass)) { ... }
We need to understand how Spigot classpath works. Cursory Googling shows that
this is a common problem, just don't immediately see a solution.
Andrus
> On Mar 23, 2022, at 4:03 PM, Andrus Adamchik <[email protected]> wrote:
>
> Actually the stack shows that there's already an instance of Cayenne runtime
> available to the code, but the runtime is in a bad state (not clear why). So
> thread binding should not be required.
>
> Andrus
>
>
>> On Mar 23, 2022, at 4:00 PM, John Huss <[email protected]> wrote:
>>
>> You have to bind the DI injector to the thread (and unbind it later):
>>
>> CayenneRuntime.*bindThreadInjector*(cayenneRuntime.getInjector());
>>
>> If you are using servlets, then CayenneFilter will do this for you.
>> Otherwise you can bind it at the start of a request and unbind it at the
>> end.
>>
>> On Wed, Mar 23, 2022 at 9:10 AM Stefan Stegic <[email protected]>
>> wrote:
>>
>>> Hi Andrus,
>>>
>>> Of course:
>>>
>>> org.apache.cayenne.di.DIRuntimeException: DI container has no binding for
>>> key <BindingKey: org.apache.cayenne.configuration.ObjectContextFactory>
>>> at
>>>
>>> org.apache.cayenne.di.spi.DefaultInjector.getProvider(DefaultInjector.java:158)
>>> ~[?:?]
>>> at
>>>
>>> org.apache.cayenne.di.spi.DefaultInjector.getProvider(DefaultInjector.java:144)
>>> ~[?:?]
>>> at
>>>
>>> org.apache.cayenne.di.spi.DefaultInjector.getInstance(DefaultInjector.java:134)
>>> ~[?:?]
>>> at
>>>
>>> org.apache.cayenne.configuration.CayenneRuntime.newContext(CayenneRuntime.java:124)
>>> ~[?:?]
>>> at
>>>
>>> io.github.phuskus.firstspigotplugin.StatisticsController.reportPlayerConnectionEvent(StatisticsController.java:20)
>>> ~[?:?]
>>> at
>>>
>>> io.github.phuskus.firstspigotplugin.FirstSpigotPlugin.onEnable(FirstSpigotPlugin.java:29)
>>> ~[?:?]
>>> at
>>> org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264)
>>> ~[spigot-api-1.18.1-R0.1-SNAPSHOT.jar:?]
>>> at
>>>
>>> org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:342)
>>> ~[spigot-api-1.18.1-R0.1-SNAPSHOT.jar:?]
>>> at
>>>
>>> org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:480)
>>> ~[spigot-api-1.18.1-R0.1-SNAPSHOT.jar:?]
>>> at
>>>
>>> org.bukkit.craftbukkit.v1_18_R1.CraftServer.enablePlugin(CraftServer.java:521)
>>> ~[spigot-1.18.1-R0.1-SNAPSHOT.jar:3443-Spigot-699290c-2c1e499]
>>> at
>>>
>>> org.bukkit.craftbukkit.v1_18_R1.CraftServer.enablePlugins(CraftServer.java:435)
>>> ~[spigot-1.18.1-R0.1-SNAPSHOT.jar:3443-Spigot-699290c-2c1e499]
>>> at
>>> net.minecraft.server.MinecraftServer.loadWorld0(MinecraftServer.java:612)
>>> ~[spigot-1.18.1-R0.1-SNAPSHOT.jar:3443-Spigot-699290c-2c1e499]
>>> at
>>> net.minecraft.server.MinecraftServer.loadLevel(MinecraftServer.java:414)
>>> ~[spigot-1.18.1-R0.1-SNAPSHOT.jar:3443-Spigot-699290c-2c1e499]
>>> at
>>> net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:262)
>>> ~[spigot-1.18.1-R0.1-SNAPSHOT.jar:3443-Spigot-699290c-2c1e499]
>>> at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:994)
>>> ~[spigot-1.18.1-R0.1-SNAPSHOT.jar:3443-Spigot-699290c-2c1e499]
>>> at
>>> net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:304)
>>> ~[spigot-1.18.1-R0.1-SNAPSHOT.jar:3443-Spigot-699290c-2c1e499]
>>> at java.lang.Thread.run(Thread.java:833) [?:?]
>>>
>>> On Wed, Mar 23, 2022 at 11:49 AM Andrus Adamchik <[email protected]>
>>> wrote:
>>>
>>>> Hi Stefan,
>>>>
>>>> Could you include a full stack trace please?
>>>>
>>>> Thanks,
>>>> Andrus
>>>>
>>>>> On Mar 23, 2022, at 1:04 AM, Stefan Stegic <[email protected]>
>>>> wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>>
>>>>> First some context: I'm working on a custom Minecraft server (Spigot)
>>>>> plugin. It's just a JAR that you export and place somewhere in the
>>>> server's
>>>>> folder structure.
>>>>>
>>>>> I wrote a simple insert query via Cayenne's API. It works when I run
>>> the
>>>>> example JAR directly via executing Main from the command line (java -cp
>>>>> myPlugin.jar path.to.Main), but it fails with the following error when
>>>>> executed by the server in my plugin's OnEnable lifecycle hook:
>>>>>
>>>>> org.apache.cayenne.di.DIRuntimeException: DI container has no binding
>>> for
>>>>> key <BindingKey: org.apache.cayenne.configuration.ObjectContextFactory>
>>>>>
>>>>>
>>>>> My initial theory was that it's being executed from a different thread,
>>>> so
>>>>> the DI system might not have access to that dependency for some reason,
>>>> but
>>>>> it seems like the server executes this lifecycle hook from the main
>>>> thread
>>>>> as well (though they've named the thread "Server thread", and I don't
>>>> know
>>>>> how to check if it's the main thread for sure). Not sure if this is a
>>>>> promising direction to pursue, but I got the hunch by looking at the
>>>>> threadInjector bits of Cayenne's DI container docs.
>>>>>
>>>>> My example looks like this:
>>>>>
>>>>> ServerRuntime cayenneRuntime = ServerRuntime.builder()
>>>>> .addConfig("cayenne-project.xml")
>>>>> .build();ObjectContext ctx =
>>> cayenneRuntime.newContext();
>>>>> PlayerConnectionEvent newEvent =
>>>>> ctx.newObject(PlayerConnectionEvent.class);
>>>>> newEvent.setEventType(eType);
>>>>> newEvent.setPlayerName(playerName);
>>>>> newEvent.setIpAddress(ipAddress);
>>>>> newEvent.setTimestampUnixSeconds(unixSeconds);
>>>>>
>>>>> ctx.commitChanges();
>>>>>
>>>>> Some help would be greatly appreciated, thanks in advance!
>>>>> --
>>>>> S poštovanjem,
>>>>> *Stefan Stegić*
>>>>
>>>>
>>>
>>> --
>>> S poštovanjem,
>>> *Stefan Stegić*
>>>
>
