In 3.0.0 unlike ODatabaseDocumentTx , OrientDB constructor throwing exception for in memory DB

[arjun dhar]

Hi,

Summary

Am on OrientDB 3.0.0 ; and am trying to avoid the use of Depreicated API like: ODatabaseDocumentTx

However, when I replace it with com.orientechnologies.orient.core.db.OrientDB ; for the same configs that otherwise work fine it blows up.

Details below...

Configuration

```

odb.url=memory:neurosys_orientdb_odb

odb.username=admin

odb.password=admin

odb.maxPartitionSize=2

odb.maxPoolSize=10
```

Spring Configs using ODatabaseDocumentTx that work

```

<bean id="dataSourceOdb" class="com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx" init-method="create">

        <constructor-arg value = "${odb.url}"/>   

</bean>

<bean id="connectionPoolDataSourceOdb" class="com.orientechnologies.orient.core.db.OPartitionedDatabasePool">

  <constructor-arg value = "${odb.url}" index="0"/>

  <constructor-arg value = "${odb.username}" index="1"/>

  <constructor-arg value = "${odb.password}" index="2"/>

  <constructor-arg value = "${odb.maxPartitionSize}" index="3"/>

        <constructor-arg value = "${odb.maxPoolSize}" index="4"/>

  </bean>

```

Spring Configs using com.orientechnologies.orient.core.db.OrientDB that does not work

Simply replacing the  `dataSourceOdb` bean.

```

<bean id="dataSourceOdbNew" class="com.orientechnologies.orient.core.db.OrientDB">  

    <constructor-arg value = "${odb.url}"/>

  <constructor-arg value = "${odb.username}" />

  <constructor-arg value = "${odb.password}" />   

    <constructor-arg><null /></constructor-arg>

</bean>

```

Exception thrown

```

com.orientechnologies.orient.core.exception.ODatabaseException: Cannot open database 'neurosys_orientdb_odb'

at com.orientechnologies.orient.core.db.OrientDBEmbedded.open(OrientDBEmbedded.java:140)

at com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.open(ODatabaseDocumentTx.java:908)

at com.orientechnologies.orient.core.db.OPartitionedDatabasePool$DatabaseDocumentTxPooled.internalOpen(OPartitionedDatabasePool.java:441)

at com.orientechnologies.orient.core.db.OPartitionedDatabasePool.openDatabase(OPartitionedDatabasePool.java:306)

at com.orientechnologies.orient.core.db.OPartitionedDatabasePool.acquire(OPartitionedDatabasePool.java:261)

...

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

Caused by: com.orientechnologies.orient.core.exception.OStorageException: Cannot open the storage 'neurosys_orientdb_odb' because it does not exist in path: D:\orientdb\./neurosys_orientdb_odb

at com.orientechnologies.orient.core.storage.impl.local.OAbstractPaginatedStorage.open(OAbstractPaginatedStorage.java:267)

at com.orientechnologies.orient.core.db.OrientDBEmbedded.open(OrientDBEmbedded.java:131)

... 34 more

```

Possible cause

Looks like the path is getting messed up and assuming unix convention path even for an in memory DB. Am on windows, but I dont see why that anyway matters for an in-memory DB, plus it works with the deprecated one. So I assume this to be a bug, if not please let me know what Im missing.

thanks,

Arjun

[Luigi Dell'Aquila]

Hi Arjun,

Thank you very much for reporting, I'll check it asap.

Thanks

Luigi

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[Luigi Dell'Aquila]

Hi Arjun,

With the new API the db creation is a bit different, programmatically it would be something as follows:

OrientDB orient = new OrientDB("embedded:./",config);

orient.create("neurosys_orientdb_odb",ODatabaseType.MEMORY);

// and create a pool

ODatabasePool pool = new ODatabasePool(orient,"neurosys_orientdb_odb","admin","admin",config);

// or open a connection directly

orient.open("neurosys_orientdb_odb","admin","admin",config);

So you need four parameters:

- the db path ("embedded:./" in this case, but if you only have in-memory databases you can hard-wire it, as it will never be used)

- the actual db name (neurosys_orientdb_odb)

- the username

- the password

Probably you will have to do little changes to your application accordingly, but it should not be too complex

I hope it helps

Thanks

Luigi