FWIW, rather than drag in another dependency you might just want to catch
RuntimeException instead of MongoException. Of course it will have to come
after the catch block for the IllegalStateException. And if you want you can
just do
if (e.getClass.getName().equals("com.mongodb.MongoException) {
LOGGER.error(..)
} else {
throw e;
}
if you want the same behavior as what you have below.
Ralph
On Aug 16, 2013, at 9:20 PM, Ralph Goers wrote:
> https://github.com/mongodb/mongo-java-driver/blob/master/src/main/com/mongodb/MongoException.java
> shows an import for org.bson.BSONObject. The pom.xml for mongo-java-driver
> doesn't contain a transitive dependency for that and mvn dependency:tree on
> core doesn't show it.
>
> Ralph
>
>
> On Aug 16, 2013, at 3:48 PM, Nick Williams wrote:
>
>> Guys, I'm having a hard time with this simple fix that should have taken
>> five minutes. I'm getting test failures due to NoClassDefFoundErrors that
>> shouldn't happen.
>>
>> Here are the tests in error:
>> CategoryTest.setupClass:52 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.testTraceWithException:415 ? NoClassDefFound
>> com/mongodb/MongoExcep...
>> LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.testLog:459 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.testRB1:295 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.testRB2:314 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.testRB3:334 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.testTrace:388 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.testAdditivity1:119 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.testAdditivity2:144 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.testAdditivity3:183 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.testIsTraceEnabled:443 ? NoClassDefFound
>> com/mongodb/MongoException
>> LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.testExists:355 ? NoClassDefFound com/mongodb/MongoException
>> LoggerTest.tearDown:75 ? NoClassDefFound com/mongodb/MongoException
>> LoggingTest.setupClass:44 ? NoClassDefFound com/mongodb/MongoException
>> LoggingTest.cleanupClass:49 NullPointer
>>
>> Here's the code I added:
>>
>> try {
>> if (!database.authenticate(username,
>> password.toCharArray())) {
>> LOGGER.error("Failed to authenticate against MongoDB
>> server. Unknown error.");
>> }
>> } catch (MongoException e) {
>> LOGGER.error("Failed to authenticate against MongoDB: "
>> + e.getMessage(), e);
>> } catch (IllegalStateException e) {
>> LOGGER.error("Factory-supplied MongoDB database
>> connection already authenticated with different" +
>> "credentials but lost connection.");
>> }
>>
>> Problem is, "database" is an instance of com.mongodb.DB, which is in the
>> same JAR as com.mongodb.MongoException. If I remove this code, the tests
>> pass. How is this possible? The DB instance is there with or without this
>> new code, which means the JAR is on the classpath, which means
>> MongoException should be on the classpath.
>>
>> Very confused...
>>
>> Nick
>>
>> On Aug 16, 2013, at 5:13 PM, Gary Gregory wrote:
>>
>>> Thank you for the update Nick!
>>> :)
>>> Gary
>>>
>>>
>>> On Fri, Aug 16, 2013 at 5:39 PM, Nick Williams
>>> <[email protected]> wrote:
>>> Answers inline.
>>>
>>> On Aug 14, 2013, at 2:10 AM, YuCheng Ting wrote:
>>>
>>>> Hi all,
>>>>
>>>> I use beta8 log4j2 and wrote log4j2.xml like example in document
>>>> (http://logging.apache.org/log4j/2.x/manual/appenders.html#NoSQLAppender ):
>>>>
>>>>
>>>> <appenders>
>>>> <NoSql name="databaseAppender">
>>>> <MongoDb databaseName="applicationDb"
>>>> collectionName="applicationLog"
>>>> server="mongo.example.org"
>>>> username="loggingUser" password="abc123" />
>>>> </NoSql>
>>>> </appenders>
>>>
>>> Yep. That's correct.
>>>
>>>> but I get the two exception:
>>>>
>>>> 1, "can't serialize class org.apache.logging.log4j.Level" exception in
>>>> (BasicBSONEncoder.java:270), I read the code and add follow code in my
>>>> project before logging, it gone.
>>>>
>>>> BSON.addEncodingHook(org.apache.logging.log4j.Level.class, new
>>>> Transformer() {
>>>> @Override
>>>> public Object transform(Object o) {
>>>> return o.toString();
>>>> }
>>>> });
>>>
>>> This bug was reported and fixed a few weeks ago. The fix will be in the
>>> next version, or you can compile locally.
>>> https://issues.apache.org/jira/browse/LOG4J2-330
>>>
>>>> 2, “not authorized for insert test.log”, because my MongoDB need auth to
>>>> write, but the the "username" and "password" attributes in log4j2.xml is
>>>> nearly useless, after I read source code, found it NOT auth in
>>>>
>>>> org.apache.logging.log4j.core.appender.db.nosql.mongo.MongoDBProvider.createNoSQLProvider
>>>> source code line 181 after check username and password and
>>>> com.mongodb.DB.authenticate never be called.
>>>
>>> This is a bug. I'm reporting it and fixing it now. The fix will be in the
>>> next version, or you can compile locally (after I get the change committed,
>>> of course).
>>>
>>>> so I change log4j2.xml :
>>>>
>>>> <NoSql name="mongodb">
>>>> <MongoDb collectionName="log" databaseName="test"
>>>> factoryClassName="com.yuchs.test.log4j.MainTest"
>>>> factoryMethodName="getMongoClient" />
>>>> </NoSql>
>>>>
>>>> and create MongoClient and call com.mongodb.DB.authenticate method in
>>>> com.yuchs.test.log4j.MainTest.getMongoClient.
>>>>
>>>>
>>>> This is my question:
>>>>
>>>> 1, Why not add BSON.addEncodingHook code into log4j2 project to avoid
>>>> basic exception ? or another rule of method I don't know ?
>>>>
>>>> 2, Why not auth DB in log4j2 project if password and username is set in
>>>> log4j2.xml ? or another rule of method I don't know ?
>>>>
>>>> Thanks everyone!
>>>>
>>>
>>>
>>>
>>>
>>> --
>>> E-Mail: [email protected] | [email protected]
>>> Java Persistence with Hibernate, Second Edition
>>> JUnit in Action, Second Edition
>>> Spring Batch in Action
>>> Blog: http://garygregory.wordpress.com
>>> Home: http://garygregory.com/
>>> Tweet! http://twitter.com/GaryGregory
>>
>
