Re: Collection No IndexManager

29 Jan 2002 14:52:10 -0000

Well, I finally realized that the creation code I was using is copied directly from the dbXML Developers Guide 0.5 and that the API for the CollectionManager has a simpler createCollection()  method that takes only a name as the parameter and then creates a default collection. Using this method clears all of my problems.

I am still wondering about the original problem, however.  Is the Guide wrong, is the release broken or am I applying this wrongly? Is there more information on the usage of the collection configuration facility? Is this useful to pursue or is it best in general to stay with the default collection creation mechanism?

Thanks,
Joel
 

Joel Rosi-Schwartz wrote:

Hi,

I am moving from xmldb beta 4 to the current cvs Xindice 1.0rc1 and am having some problems with the creation of collections that I did not see previously. I am wondering whether something I am not aware of has changed or if there is now a bug in the system.

I am creating the new collections thus:

 private boolean createCollection(String name, String path) {
  System.err.println("createCollection " + name + " " + path);
  Collection col = myServer.getCollection(path);

   if (col == null) return false;

   try {
    CollectionManager service = (CollectionManager) col.getService("CollectionManager", "1.0");

    // Build up the Collection XML configuration.
    String collectionConfig =
     "<collection compressed=\"true\" name=\""
      + name
      + "\">"
      + "   <filer class=\"org.dbxml.core.filer.BTreeFiler\" gzip=\"true\"/>"
      + "</collection>";

    service.createCollection(name, DOMParser.toDocument(collectionConfig));
    service.createIndexer(name);

    System.err.println("Collection " + name + " created.");
   }
   catch (XMLDBException e) {
    System.err.println("XML:DB Exception occured " + e.errorCode);
    return false;
   }
   catch (XindiceException e) {
    System.err.println("XML:DB Exception occured " + e.getMessage());
    return false;
   }
  }
  finally {
   myServer.closeCollection(col);
  }

  return true;
 }

When I try to add a new an exception if thrown:
XML:DB Exception occured 1
org.xmldb.api.base.XMLDBException: Collection No IndexManager
 at org.apache.xindice.core.FaultCodes.createXMLDBException(Unknown Source)
 at org.apache.xindice.client.xmldb.CollectionImpl.storeResource(Unknown Source)
 at com.xindice.proto.internal.core.internuncio.Mediator.addDocument(Mediator.java:134)
 at com.xindice.proto.internal.core.internuncio.Mediator.addDocument(Mediator.java:98)
 at com.xindice.proto.internal.core.internuncio.Mediator.main(Mediator.java:301)
I am using the following code to add the document:
 public boolean addDocument(DocumentDescriptor descriptor, boolean overwrite) {

  Collection col = myServer.getCollection(descriptor.getCollectionPath());

  if (col == null) {
   String error =
    "Collection \""
     + descriptor.getCollectionPath()
     + "\" not found, document \""
     + descriptor.getName()
     + "\" skipped";

   System.out.println(error);
   descriptor.setError(error);
   return false;
  }

  try {
   if (!overwrite) {
    // This code also throws an exception, but I believe
    // that it should simply return null
    try {
     Resource res = col.getResource(descriptor.getName());

     if (res == null) {
      System.out.println("Document \"" + descriptor.getName() + "\" skipped");
      return true;
     }
    }
    catch (XMLDBException ignore) {
    }
   }

   XMLResource document = (XMLResource) col.createResource(descriptor.getName(), "XMLResource");
   document.setContent(descriptor.getDocument());
   // throws exception here
   col.storeResource(document);
   System.out.println("Document " + descriptor.getName() + " inserted");
  }
  catch (XMLDBException e) {
   System.err.println("XML:DB Exception occured " + e.errorCode);
   e.printStackTrace();
   descriptor.setError("XML:DB Exception occured " + e.errorCode);
   return false;
  }
  finally {
   myServer.closeCollection(col);
  }

  return true;
 }


Any insights would be very appreciated.

Tia,
Joel
 
 

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