Metacat

09/01/2000

05:40 PM Bug #109: query speed slows as database grows

Reassigned to berkley. Matt Jones

05:16 PM Bug #111: reading large documents from metacat is slow

Fixed document reading bug (bugzilla bug #111) so that reading documents is
no longer a power function of the number ... Matt Jones

08/31/2000

02:24 PM Bug #55: change order of fields

The order was changed Chad Berkley

02:23 PM Bug #54: title and altitle fields are too small

Changed the size of the fields to 30 characters. Chad Berkley

02:23 PM Bug #53: Interface does not look good in 800x600

Changed the interface to work better with lower resolutions. Fonts were made
smaller and buttons and text boxes were... Chad Berkley

01:04 PM Bug #111 (Resolved): reading large documents from metacat is slow

Reading documents from metacat seems to scale with document size, and gets to be
extremely slow for even medium size... Matt Jones

12:58 PM Bug #110 (Resolved): foreign keys to xml_catalog

The current uses of public identifiers in the xml_documents and xml_revisions
tables do not explicity reference xml_... Matt Jones

08/30/2000

11:36 AM Bug #109 (Resolved): query speed slows as database grows

As the database grows in size, the speed at which a query result is returned
becomes greater. The database size to ... Chad Berkley

08/24/2000

10:27 AM Bug #101 (Resolved): generate data set usage metadata/ provide access log

Tracking data set usage is an important part of running a metadata and data
archive. We need a new feature in the m... Matt Jones

08/23/2000

04:08 PM Bug #59: create a more general specification for queries

First of all, I changed pathquery.dtd to allow for {0..N} <returnfield>
tags. The content of each field should be ei... Chad Berkley

03:22 PM Bug #100 (Resolved): add viewabstract action to metacatServlet

an action to view the abstract of a metadata file needs to be added to
metacatServlet. Chad Berkley

03:21 PM Bug #99 (Resolved): add getDocumentAction to marineServlet

the action to look at a metadata file in html form should be added to
marineServlet. Chad Berkley

03:21 PM Bug #98 (Resolved): add download action to marineservlet

An action to download a dataset from the DB needs to be added to marineServlet Chad Berkley

03:18 PM Bug #97 (Resolved): combine printExtendedSQL and printSQL methods into one

The printExtendedSQL and printSQL methods of QuerySpecification can be combined
into one method that works like prin... Chad Berkley

03:15 PM Bug #96 (Resolved): Fix browse function in MARINE servlet

The browse function in marineServlet needs to be implemented in a way that
allows the browsing by different fields. ... Chad Berkley

02:33 PM Bug #28: need doctype backtracing/linking feature as part of doctype filter

reassigned to berkley Matt Jones

10:43 AM Bug #28: need doctype backtracing/linking feature as part of doctype filter

This feature depends on us resolving the linking feature described in bug #31
that allows us to specify relationships... Matt Jones

02:28 PM Bug #31: need dataset id reference from metadata

reassigned to berkley Matt Jones

10:26 AM Bug #95 (Resolved): support for Namespaces in XML documents

We need to support storage, query, and retrieval of XML documents with
Namespaces (see http://www.w3.org). At a min... Matt Jones

10:23 AM Bug #94 (Resolved): add DOM interface support to metacat

The current metacat database uses our proprietary API for accessing XML
documents. It uses a memory-resident model,... Matt Jones

08/22/2000

02:36 PM Bug #59: create a more general specification for queries

This fix is in progress:
I have added the capability to have <returnfield> tags in a pathquery document
which tell qu... Chad Berkley

02:34 PM Bug #63: methods in MetaCatServlet should be private not protected

Extraneous methods were changed, the protected, overridable methods are:
decodeMouseAction
handleSQuery
handleQuery
t... Chad Berkley

10:24 AM Bug #31: need dataset id reference from metadata

clarified action needed in subject, making it clear that we need the dataset id
reference in the metadata files in or... Matt Jones

08/21/2000

04:30 PM Bug #93: allow dynamic addition of actions

reassigned to berkley. Matt Jones

11:59 AM Bug #93 (Resolved): allow dynamic addition of actions

Instead of hard coding in each action into metacat, actions could be loaded
dynamically by defining a class which co... Chad Berkley

04:29 PM Bug #63: methods in MetaCatServlet should be private not protected

reassigned to berkley (I think he already handled this bug.) Matt Jones

08:30 AM Bug #61: new resultset dtd spec

In metacatservlet, the method that creates the resultset xml is now overwritable
allowing client modification of the ... Chad Berkley

08:29 AM Bug #60: use querySpecification

All queries are now created in querySpecification. Chad Berkley

08:28 AM Bug #56: code shifts and removals

All of the tasks were completed. Chad Berkley

08/20/2000

10:49 PM Bug #92 (Resolved): need access control tracking for metadata documents

Need to create a mechanism for tracking access control information for metadata
documents. This might be doen by cr... Matt Jones

08:58 PM Bug #46: metacat insert fails on some documents

Dan verified that this bug still exists. Reassigned to bojilova. Matt Jones

08/18/2000

10:26 AM Bug #63 (Resolved): methods in MetaCatServlet should be private not protected

Many of the helper methods in MetaCatServlet have been changed to "protected"
from their original "private" state. M... Matt Jones

08/17/2000

01:35 PM Bug #52: Change link to project abstract

It was changed Chad Berkley

09:25 AM Bug #58: add eml-resource to the catalog

resource was added to the catalog and to xml_catalog in the database. Chad Berkley

08/15/2000

01:37 PM Bug #62: hardcoded paths should be config parameters

DONE
All hardcoded paths in MetaCatServlet.java to the location of .html files are
changed with "htmlpath" parameter ... Jivka Bojilova

10:00 AM Bug #49: need anonymous user login as default for metacat

DONE
Anonymous user login has been included as default to metacat. From the
metacat's web interface user goes directl... Jivka Bojilova

08/14/2000

02:40 PM Bug #57: changes to handleQueryAction

I ended up breaking handleQueryAction into 4 different functions.
handleSQuery-handles structured queries
handleQuery... Chad Berkley

08/10/2000

03:37 PM Bug #62 (Resolved): hardcoded paths should be config parameters

MetaCatServlet has some hardcoded paths that should be removed and put in the
configuration files. Mostly these are... Matt Jones

08/09/2000

02:51 PM Bug #61 (Resolved): new resultset dtd spec

for return type make a <param name="xxx"> instead of <name></name>. This can be
used for more specific stylesheet c... Chad Berkley

02:48 PM Bug #60 (Resolved): use querySpecification

All queries should be created through querySpecification instead of creating the
sql withing the client servlet. Chad Berkley

02:47 PM Bug #59 (Resolved): create a more general specification for queries

work on a way to search through different fields from
different standards making the query more general Chad Berkley

02:18 PM Bug #58 (Resolved): add eml-resource to the catalog

eml-resource should be added to the catalog with the appropriate stylesheet. It
also needs to be added to the sqlca... Chad Berkley

02:16 PM Bug #57 (Resolved): changes to handleQueryAction

split handleQueryAction into three seperate functions. One to create a query
(createQuery), another to create an sq... Chad Berkley

02:10 PM Bug #56 (Resolved): code shifts and removals

The following methods should be removed from marineServlet since they are
already implemented in metacatServlet:
do... Chad Berkley

02:00 PM Bug #55 (Resolved): change order of fields

The order of the fields should be the following.
title alt title
keywords any field
Dataset... Chad Berkley

01:58 PM Bug #54 (Resolved): title and altitle fields are too small

title and alttitle should be larger than 15 characters. Chad Berkley

01:56 PM Bug #53 (Resolved): Interface does not look good in 800x600

Change the interface so that the graphics are not as big in lower resolutions Chad Berkley

01:55 PM Bug #52 (Resolved): Change link to project abstract

The link should be www.nceas.ucsb.edu/marinedata/ Chad Berkley

08/08/2000

06:19 PM Bug #33: problems with replicating of DTDs, because of PUBLIC IDs

Assigned to Jivka Jivka Bojilova

06:16 PM Bug #20: DBSAXNode constructor can be simplified

DONE as recommended. Jivka Bojilova

06:14 PM Bug #48: need an option to do xml indexing asynchronously

Can be implemented by starting a new tread from the servlet.
That tread can do the task in a background even after se... Jivka Bojilova

06:07 PM Bug #47: doctype and docid attr are needed in xml_index table

DONE
updateNodeIndex(docid, doctype) in DBSAXNode and other related classes are
changed for storing docid and doctype... Jivka Bojilova

06:02 PM Bug #30: get dataguide function needed by client

DONE
Implemented as part of DBUtil class.
doctype and docid attr are already added to xml_index table.
Retrieves all ... Jivka Bojilova

05:55 PM Bug #29: Download DTDs/Schemas for client

Need to implement download of DTDs/Schemas. Jivka Bojilova

05:51 PM Bug #23: creating shared pool of connections in metacat servlet

DONE
Implemented Pool of Connections only.
DBQuery, DBReader and DBTransform are created on every request.
MetaCatUti... Jivka Bojilova

08/07/2000

03:06 PM Bug #51 (Resolved): adding a non-well-formed document results in a "success" message

When inserting an xml document that was not well formed into the database, the
servlet returned the following error:... Chad Berkley