Re: [Tm4j-developers] Deep Copy - ClassCastException

[<xua...@ba...>]

Peri wrote:
> hi,
Hi Peri,
>
> Topic:
> Copy of contents xtm  files to my-sql DBMS.
> The process goes smooth till it finds scope object in either
> <basename(s)> or <occurrence(s)>
>
>
> If observed, in the method copyScopedObject  of
> TopicMapFactoryBase.TopicMapFactoryBase, the Topic object is sent as
> is to the implementation classes, which works fine if the copy is
> performed at the same level (file-system to file-system).
>
> Have tried fixing this problem and did a bit of testing too, to copy
> the topics from various XTM, provided in the example section.
thank you for your patch. I applied your patch to both the "MAIN" and
the "TM4J_1_x" branch of TM4J.
>
> If there is a process I would have to follow in order to test the
> validity of my logic, please let me know.
I wish TM4J had a comprehensive test suite that could be applied before
checking in a patch, but (apart from "ant ozone-test", which is not
really a test suite), I'm not aware of any test suite for TM4J.
Using the mailing-list is okay (for me), but maybe raising a bug at
https://sourceforge.net/tracker/?group_id=27895&atid=391879 would make
the discussion more standardized. :-)
>
> Thank you.
Thank you, too, for digging into the problem and contributing a patch. :-)
>
>
>
>
> On 4/12/07, *Peri* <per...@gm... <mailto:per...@gm...>>
> wrote:
>
>     Hi,
>     I am trying to perform a copy from a TopicMap generated from in
>     memory provider  and populate my topicmap stored in the database.
>     While copying the scope bounded basenames, the copy operations
>     errors out with a class cast exception...
>
>
>     TopicMap:
>     topicmaps/kings_and_queens.xtm # Sample provided in the examples
>
>     Code Snippet:
>     TopicMapProvider provider_m =
>     tmpf_m.newTopicMapProvider(providerProps);
>     Locator baseLocator_m =
>     provider_m.getLocatorFactory().createLocator("URI", getInputURI());
>
>     TopicMapSource src_m = new
>     SerializedTopicMapSource(getInputStream(), baseLocator_m);
>
>     // Parse the topic map           
>     TopicMap tm_m = provider_m.addTopicMap(src_m);
>
>     TopicMapProvider provider_h =
>     tmpf_h.newTopicMapProvider(providerProps);
>     Locator baseLocator_h =
>     provider_h.getLocatorFactory().createLocator("URI", getInputURI());
>
>     TopicMap tm_h = provider_h.getTopicMap(baseLocator_h);
>     provider_h.removeTopicMap(tm_h);
>     tm_h = provider_h.createTopicMap(baseLocator_h);
>
>     // Perform a copy
>     tm_h.getFactory().copy(tm_m);
>
>
>     Stack trace:
>     Exception in thread "main"
>     org.tm4j.topicmap.TopicMapRuntimeException:
>     Cause: java.lang.ClassCastException:
>     org.tm4j.topicmap.memory.TopicImpl cannot be cast to
>     org.tm4j.topicmap.hibernate.TopicImpl
>     Cause:org.tm4j.topicmap.memory.TopicImpl cannot be cast to
>     org.tm4j.topicmap.hibernate.TopicImpl
>         at
>     org.tm4j.topicmap.hibernate.ScopedObjectImpl.setScope(Unknown Source)
>         at
>     org.tm4j.topicmap.TopicMapFactoryBase.copyScopedObject(TopicMapFactoryBase.java:741)
>         at
>     org.tm4j.topicmap.TopicMapFactoryBase.copy(TopicMapFactoryBase.java:507)
>         at org.tm4j.topicmap.TopicMapFactoryBase.copy
>     (TopicMapFactoryBase.java:259)
>         at
>     org.tm4j.topicmap.TopicMapFactoryBase.copy(TopicMapFactoryBase.java:212)
>         at
>     org.tm4j.topicmap.TopicMapFactoryBase.copy(TopicMapFactoryBase.java:203)
>         at org.tm4j.topicmap.TopicMapFactoryBase.copy
>     (TopicMapFactoryBase.java:96)
>         at
>     com.krl.examples.HibernateProviderTest.setUp(HibernateProviderTest.java:97)
>         at
>     com.krl.examples.HibernateProviderTest.main(HibernateProviderTest.java:108)
>     Caused by: java.lang.ClassCastException :
>     org.tm4j.topicmap.memory.TopicImpl cannot be cast to
>     org.tm4j.topicmap.hibernate.TopicImpl
>         at
>     org.tm4j.topicmap.hibernate.ScopedObjectImpl.setScope(Unknown Source)
>         ... 9 more
>
>     Am I missing anything here...
>
>
>     Any help would me much appreciated!!!
>     -- 
>     warm regards
>     Peri
>
>     The best way out of difficulty is through it. :) 
>
>
>
>
> -- 
> warm regards
> Peri
>
> The best way out of difficulty is through it. :)
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