Metacat

Began work on new UI for the KNB web site. It will be the main query
interface from the KNB website.

merge AUTH_LDAP to the main branch

removed debug print statements.

added code for getting stylized related documents

allowed both indexing threads to run without interfering with each other.

fixed bug that caused a nullPointerException when a null resultset was returned.

added support for urls of the form "metacat://server.xyz.com?docid=XXX:yy"

Added backtrack functionality. Backtracking works by passing a returndoc parameter. There can be more than one. If a document that is hit by a query is not of type returndoc then it searches the database for a related file of type returndoc. If one is found it is displayed, if no relation is found, the original is displayed....

fix the small bug with output like:
Fatal processing error

<success>
<docid>null</docid>
</success>
on hadleInsertOrUpdateAction()

Updated the download data function. the download data function now pulls a document from the database, zips it up and sends the zip stream to the client. It also zips up any related files. a relation parameter is used to pass related files to the servlet. If only one document should be zipped and sent, a single docid in the param hashtable is sufficient.

Added functionality for package specifications. metacatservlet now contains a new action called getrelateddocument that handles retrieving related documents using the metacatURL specification (metacatURL.java). DBQuery contains new code in runQuery that embeds relation tags in the returned hashtable describing the documents related to each docid. querySpecification contains a new method which prints the sql that does the relation query.

removed print statments

fixed xml tag error in squer

fixed bug in handleSQuery that returned the tag in the <query> tag of a resultset.
BugID:
Submitted by:
Reviewed by:

added check from "read" permission on "query" and "squery" actions
for connected user or for "public" connection

added support for getabstract action

Modified MetaCatServlet to use the new DocumentImpl.toXml() method for
efficiency of reading documents. See bugzilla bug #111 for an explanation.

storing user_owner and user_updated where needed
new function in DocumentImpl checking for "write" perm on UPDATE or DELETE
added delete from xml_index of the old version of docid on UPDATE

changed xslf for new returnfield scheme. the returnfields are now returned as <param name="<returnfield>"> tags.
hThe sql for the returnfield query was redone to fix a previous problem with slow queries

Changes with Srb authentication: including quering of Srb/MCAT during the Srb connection for:
- groupname of connected user
- list of groups and users in MCAT for ACL function for MetaCat

Continued code redesign for the DocumentImpl class. Now the "delete" and
"write" methods are static, so a DocumentImpl objject need not be created
in order to initiate a INSERT, UPDATE, or DELETE action (it is created
implicitly by the DBSAXHandler). When doing a "READ" action, one still...

Folded the functionality from DBWriter into DocumentImpl, continuing the
work started earlir to create a more DOM-like model for the classes, in
which a single DocumentImpl class handles both reading and writing of
documents to the database. Modified shell scripts and MetaCatServlet to...

Created new class "DocumentImpl" which represents an XML Document. This
document will eventually implment the DOM Document interface. For now,
it implments all of the functionality that was present in DBReader, plus
cuts down on the number of database calls required to read a document. And...

-fixed the bug where a pathquery document was not valid inside of the <query> tags in a resultset document.
-provided override support for a new function called transformQuery() which allows specific applications to
customize what is returned in the <query> tag

Fixed small bug in transforming the document to HTML. If there was
no stylesheet for a given doctype, and so the transformation couldn't
occur, the XML doc was returned, but the content-type was still set
(incorrectly) to html. Now it is not set to text/html when an xml doc is...

removed extraneous protected tags and replaced them with private tags

Modified behavior of handleSQuery() to now send the resultset document
back to the client application -- this was a bug introduced by recent
changes to the servlet. Also, generally cleaned up the servlet to
produce cleaner documentation and removed some extraneous code and remarks....

changed the prototype of overwritable functions to "protected" instead of "private".

Changed the flow of query and SQuery. SQuery now only handles a preformatted pathquery document as input (in the "query" parameter).
HandleQuery now handles all structured queries derived by CGI parameters.

fixed bug with handleSQuery() that kept DMan from access the squery functionality

- created transformResultset() which transforms an xml resultset document and displays it to the client useing DBTransform
- renamed transformDocument() to createResultDocument() and modified its functionality to only return a restultset xml document
- changed handleSQuery() and handleQuery() to use the new methods

remove handleQueryAction() in favor of directly calling handleQuery() and handleSQuery() from doGetOrPost()

Cleared hardcoded paths for the location of .html files and use
the new "htmlpath" property from metacat.properties file

Added decodeMouseAction(Hashtable) to decode the mouse click action outside of handleGetOrPost to allow for easy modification of images in a different application.

Broke up handleQueryAction into handleQuery, handleSQuery, runQuery and transformDocument. handleQueryAction is now a base function which makes calls to each of these functions to create, run and transform a query from CGI parameters.

Updated build process to now use a copy of the source files so that keyword
substitution can ocur before the build. This allows for substitution of
hardcoded values into the source before the compile. Currently, I am
using this feature to do the following:...

added Logout handling

clear lib dir from paths like xmltodb/lib/something.html

Changed exception handling mechanisms for DBReader

broke up handleQueryAction into handleQuery, handleSQuery, runQuery and transformDocument

changed paths, b' of new dev server

added "anonymous" user connection

-Reorganized xmltodb module to support new install process for the new
linux server (dev.nceas.ucsb.edu). Added "build.sh" shell script that
calls ant withthe proper umask set for installation. Use:

./build.sh install

to post a new copy of the servlet and its supporting files to the install...

rearrange html pages for login and metacat access

more precise handling of the Connection Pool

Changes related to "getdataguide" action

Added support for "anonymous" user

added Pool of Connections
DBQuery, DBReader, DBTransform, DBUtil are created on every request and use the connections from the Pool
same with DBWriter and DBValidate

Added "getdoctypes" and "getdataguide" action handlers

Added "Login Client" action for login from the Desktop Client

no message

MetaCatServlet.java

finished user auth & session tracking

Fixed bug in DBEntityResolver so that it now properly delegates to
the system id found inthe database.
Changed DBValidate to use DBEntityResolver, rather than the OASIS
catalog, and to return validation results in XML format.

testing login

testing login

testing login

testing login

testing login

testing login

testing login

testing login

testing login

testing login

testing

testing

Added feature to now ouput COMMENTs and PIs when the document is
read from the database with DBReader.

changed to
response.sendRedirect(response.encodeRedirectUrl("/xmltodb/lib/index.html"));

changes releted to login and session tracking

Updated javadoc documentation.

Fixed bugs associated with the new UPDATE and DELETE functions of
DBWriter. There were problematic interactions between some static
variables used in DBEntityResolver and the way in which the
Servlet objects are re-used across multiple client invocations....

Merged in substantial changes to DBWriter and associated classes and to
the MetaCatServlet in order to accomodate the new UPDATE and DELETE
functions. The command line tools and the parameters for the
servlet have changed substantially.

1) Simplified database connection creation by adding new utility routine in MetaCatUtil that reads configuration information from the properties file.
2) Created MetaCatUtil.getOption() to retrieve options from properties file.
3) Unified SAX Parser creation by specifying parser driver in the properties file and dynamically loading it using the XMLReaderFactory interface....

cleaned up code for getting options from the properties file, made the database connection inthe MetaCatUtil class use the properties file for the conneciton info

updated javadoc documentation

integrated new structured query facility (DBQuery) into the servlet demo (MetaCatServlet)

minor modifications to fix problems introduced with AccessionNumber module

docid is String

added result-set filter to DBSimpleQuery to only return specified document type

renamed DBSAXWriter to DBWriter

minor formatting and display update

updated servlet UI and added new intgrated document validity feature to servlet. Working on transformation feature.

debugging form submission

fixing transform bugs

improved query result handling

Update to handle retreival of datafile from server

xsl stylesheet fix for resultset format

created XSL transformation module based on the internal database catalog

added XSL formatting to document display for metacat servlet

creating automatic transformation for XML docs retreived from catalog

changed location of catalog file to config parameter

created options file for MetaCatServlet

MetaCatServlet Modifications for XML Validation;

updated javadoc documentation for changes

further work on XML docuemnt loading facility in the MetaCatServlet

added xml doc loading to servlet actions

changed package name to edu.ucsb.nceas.metacat.*

changed database connection code, added utility class MetaCatUtil.java

added document display function to servlet

continued work on interface to servlet