Hi Luigi,
I was a bit startled to see a false in the conditional since the reasoning
isn't obvious in the code.
I'm not entirely sure what you mean by 'deployment'. I'm looking to embed
orientDb (2.1.20). The build process is written in Gradle. I'm not sure if
OSGI is used or not since I'm new to this company and haven't worked with
OSGI before. What little progress I have made is finding more dependency
issues. I'm able to start the server but I'm unable to make a connection.
These segments of code are failing because jna.Platform can not be found
but its in my classpath. Its almost like the ClassLoader doesn't see it.
Here are two brief examples with what I'm trying:
Example 1 :
OrientGraphFactory factory = new OrientGraphFactory(*location*, "guest",
"guest");
graph = factory.getTx();
Example 2:
graph = new OrientGraph(*location*, "guest", "guest");
Both examples give the following stack trace :
java.lang.NoClassDefFoundError: com/sun/jna/Platform
at
com.orientechnologies.nio.OCLibraryFactory.<clinit>(OCLibraryFactory.java:35)
at
com.orientechnologies.nio.OJNADirectMemory.<clinit>(OJNADirectMemory.java:35)
at
com.orientechnologies.common.directmemory.ODirectMemoryFactory.<clinit>(ODirectMemoryFactory.java:59)
at
com.orientechnologies.common.directmemory.ODirectMemoryPointerFactory.<init>(ODirectMemoryPointerFactory.java:28)
at
com.orientechnologies.common.directmemory.ODirectMemoryPointerFactory.<clinit>(ODirectMemoryPointerFactory.java:24)
at
com.orientechnologies.orient.core.storage.impl.local.paginated.wal.ODiskWriteAheadLog$LogSegment.initPageCache(ODiskWriteAheadLog.java:554)
at
com.orientechnologies.orient.core.storage.impl.local.paginated.wal.ODiskWriteAheadLog$LogSegment.init(ODiskWriteAheadLog.java:275)
at
com.orientechnologies.orient.core.storage.impl.local.paginated.wal.ODiskWriteAheadLog.<init>(ODiskWriteAheadLog.java:701)
at
com.orientechnologies.orient.core.storage.impl.local.paginated.wal.ODiskWriteAheadLog.<init>(ODiskWriteAheadLog.java:612)
at
com.orientechnologies.orient.core.storage.impl.local.paginated.OLocalPaginatedStorage.initWalAndDiskCache(OLocalPaginatedStorage.java:299)
at
com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.open(OAbstractPaginatedStorage.java:169)
at
com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.open(ODatabaseDocumentTx.java:252)
at
com.tinkerpop.blueprints.impls.orient.OrientBaseGraph.openOrCreate(OrientBaseGraph.java:1797)
at
com.tinkerpop.blueprints.impls.orient.OrientBaseGraph.<init>(OrientBaseGraph.java:156)
at
com.tinkerpop.blueprints.impls.orient.OrientTransactionalGraph.<init>(OrientTransactionalGraph.java:102)
at
com.tinkerpop.blueprints.impls.orient.OrientTransactionalGraph.<init>(OrientTransactionalGraph.java:98)
at
com.tinkerpop.blueprints.impls.orient.OrientGraph.<init>(OrientGraph.java:103)
at
systemDb.orient.BOrientSystemDatabase.instantiate(BOrientSystemDatabase.java:52)
Caused by: java.lang.ClassNotFoundException: com.sun.jna.Platform
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
On Friday, August 5, 2016 at 3:05:14 AM UTC-4, Luigi Dell'Aquila wrote:
>
> Hi Erik,
>
> The block with
>
> if (textUpperCase.startsWith("SELECT") && false) {
>
> is never executed (see the && false), it's there because of some tests,
> but it's disabled for a reason.
> The problem here seems to be in class loading, the SQL engine cannot find
> the factory that creates the executor for SELECT.
> What kind of deployment are you using? Do you have any specific class
> loading process (eg. OSGI)?
>
> Thanks
>
> Luigi
>
>
> 2016-08-04 20:12 GMT+02:00 Erik T <[email protected] <javascript:>>:
>
>> Hello,
>>
>> I was having trouble creating a connection to a graph database in
>> orientDB. I always get
>>
>> 2016-08-04 14:02:55:993 INFO OrientDB Server v2.1.20 is active.
>> [OServer]com.orientechnologies.orient.core.command.OCommandExecutorNotFoundException:
>>
>> Cannot find a command executor for the command request: sql.select from
>> OUser where name = ? limit 1
>> at
>> com.orientechnologies.orient.core.sql.OCommandExecutorSQLDelegate.parse(OCommandExecutorSQLDelegate.java:72)
>> at
>> com.orientechnologies.orient.core.sql.OCommandExecutorSQLDelegate.parse(OCommandExecutorSQLDelegate.java:42)
>> at
>> com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.command(OAbstractPaginatedStorage.java:1404)
>> at
>> com.orientechnologies.orient.core.sql.query.OSQLQuery.run(OSQLQuery.java:72)
>> at
>> com.orientechnologies.orient.core.sql.query.OSQLSynchQuery.run(OSQLSynchQuery.java:85)
>> at
>> com.orientechnologies.orient.core.query.OQueryAbstract.execute(OQueryAbstract.java:33)
>> at
>> com.orientechnologies.orient.core.metadata.security.OSecurityShared.getUser(OSecurityShared.java:522)
>> at
>> com.orientechnologies.orient.core.metadata.security.OSecurityShared.authenticate(OSecurityShared.java:163)
>> at
>> com.orientechnologies.orient.core.metadata.security.OSecurityProxy.authenticate(OSecurityProxy.java:87)
>> at
>> com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.open(ODatabaseDocumentTx.java:268)
>> at
>> com.tinkerpop.blueprints.impls.orient.OrientBaseGraph.openOrCreate(OrientBaseGraph.java:1797)
>> at
>> com.tinkerpop.blueprints.impls.orient.OrientBaseGraph.<init>(OrientBaseGraph.java:156)
>> at
>> com.tinkerpop.blueprints.impls.orient.OrientTransactionalGraph.<init>(OrientTransactionalGraph.java:102)
>> at
>> com.tinkerpop.blueprints.impls.orient.OrientTransactionalGraph.<init>(OrientTransactionalGraph.java:98)
>> at
>> com.tinkerpop.blueprints.impls.orient.OrientGraph.<init>(OrientGraph.java:76)
>> at
>> com.tridium.systemDb.orient.BOrientSystemDatabase.connectToDatabase(BOrientSystemDatabase.java:62)
>> at
>> com.tridium.systemDb.orient.BOrientSystemDatabase.instantiate(BOrientSystemDatabase.java:47)
>> at
>> com.tridium.systemDb.orient.BOrientSystemDatabase.doConnect(BOrientSystemDatabase.java:83)
>> at
>> com.tridium.systemDb.BSystemDbService.doConnect(BSystemDbService.java:209)
>> at
>> auto.com_tridium_systemDb_BSystemDbService.invoke(AutoGenerated)
>> at
>> com.tridium.sys.schema.ComponentSlotMap.invoke(ComponentSlotMap.java:1871)
>> at com.tridium.sys.engine.EngineUtil.doInvoke(EngineUtil.java:62)
>> at
>> com.tridium.sys.engine.EngineManager.checkAsyncActions(EngineManager.java:420)
>> at
>> com.tridium.sys.engine.EngineManager.execute(EngineManager.java:245)
>> at
>> com.tridium.sys.engine.EngineManager$EngineThread.run(EngineManager.java:839)
>>
>> The documentation is vague and not helpful so i step through the code and
>> see this in OCommandExecutorSQLDelegate.parse:
>>
>> public OCommandExecutorSQLDelegate parse(final OCommandRequest iCommand) {
>>
>> ...
>>
>>
>> if (textUpperCase.startsWith("SELECT") && false) {
>> InputStream is = new ByteArrayInputStream(text.getBytes());
>> OrientSql osql = new OrientSql(is);
>> try {
>> // TODO create a cache of parsed statements
>> OStatement stm = osql.parse();
>> delegate = stm.buildExecutor(iCommand);
>> delegate.setContext(context);
>> delegate.setLimit(iCommand.getLimit());
>> delegate.setProgressListener(progressListener);
>> is.close();
>> } catch (Exception e) {
>> throwParsingException(e.getMessage());
>> }
>> } else {
>> delegate = (OCommandExecutorSQLAbstract)
>> OSQLEngine.getInstance().getCommand(textUpperCase);
>> if (delegate == null)
>> throw new OCommandExecutorNotFoundException("Cannot find a command
>> executor for the command request: " + iCommand);
>>
>> delegate.setContext(context);
>> delegate.setLimit(iCommand.getLimit());
>> delegate.parse(iCommand);
>> delegate.setProgressListener(progressListener);
>> }
>>
>>
>> the query starts with select but the try catch block is never reached
>> because of the hard coded false in the if statement. There aren't any
>> comments to explain this. Why is that there?
>>
>> --
>>
>> ---
>> You received this message because you are subscribed to the Google Groups
>> "OrientDB" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to [email protected] <javascript:>.
>> For more options, visit https://groups.google.com/d/optout.
>>
>
>
--
---
You received this message because you are subscribed to the Google Groups
"OrientDB" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
