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# '$RCSfile$'
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# '$Author: tao $'
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# '$Revision: 981 $'
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# '$Date: 2002-04-08 09:28:27 -0700 (Mon, 08 Apr 2002) $'
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#
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Metacat: XML Metadata Database
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------------------------------
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Version: 1.1 Release
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Send feedback and bugs to: knb-software@nceas.ucsb.edu
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Contributors: Matt Jones (jones@nceas.ucsb.edu)
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Chad Berkley (berkley@nceas.ucsb.edu)
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Jing Tao (tao@nceas.ucsb.edu)
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Jivka Bojilova (bojilova@nceas.ucsb.edu)
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Dan Higgins (higgins@nceas.ucsb.edu)
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This is Metacat, a flexible database storage system for XML formatted
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documents. Metacat models the structure of the XML document, therefore
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allowing storage of XML documents with arbitrary schemas. The current
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implementation stores data in a backend Oracle RDBMS, but was designed
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to support other RDBMS systems as well. The server supports XML document
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storage, retrievel, query, validation, and transformation (using the XSLT
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stylesheet language). In addition, there is a mechanism for replicating
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the database to other metacat instances for backup and load balancing
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purposes. Metacat currently uses an LDAP database for authenticating
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users, but was written to accomodate other authentication services as well.
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Release Notes
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-------------
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Update xerces.jar file in xmltodb/lib to version 1.4.4 in release 1.1
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New feature in 1.1:
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1) Metacat can export a zip file for a data package with a summary of html
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file.
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2) Metacat can except new version of a dcoument only it is greater than
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current one, not exactly one greater.
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3) Create a JUnit test frame for Metacat. However, we need put more test
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classes there.
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Bugs fixed include:
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Fixes in 1.1
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1) Fixed problem that if the user exists in one of the referred trees in ldap
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server,authentication will succeed whether the password is correct or not.
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2) Delete a rule in access control of documents which may cause problem:
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If a member document of data package doesn't have access control list,
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access control of data set document will apply to the member document.
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3) Fixed problem about dcouments access control.
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4) Fixed problem that data file version couldn't increase.
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5) Fixed problem that client couldn't get principals or groups from ldap
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server.
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Fixes in 1.0.3
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1) Fixed problem with Metacat not being able to query for group names when
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and LDAP referral server was down. Added an LDAP timeout of 5 seconds
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for all referral activity.
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2) Fixed problem where invalid xml characters such as ampersands (&) could
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be inserted into the resultset xml stream.
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Fixes in 1.0.2
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1) Fixed problem with LDAP locking up Metacat when a referral server
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was not available.
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Fixes in 1.0.1
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1) Fixed problem with authenticating using LDAP referrals
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2) Fixed bug that prevent groups from being used in access documents
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Installation
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------------
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See the file "docs/user/metacatinstall.html" for detailed instructions.
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Documentation
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-------------
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See the docs directory for detailed documentation and installation
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instructions.
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Details of the Metacat architecture can be found on the website for
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the Knowledge Network for Biocomplexity (KNB):
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http://knb.ecoinformatics.org/software/metacat/
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Contributions to this work are welcome. Please see the above web site
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for details on how to contribute.
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Major Known Bugs or Feature Requests (see http://bugzilla.ecoinformatics.org)
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-----------------------------------------------------------------------------
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There are no known bugs in the current release (yet). If you discover one
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please report it, either by email (above) or by using our bug tracking
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system (http://bugzilla.ecoinformatics.org). There is a list of currently
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unimplemented features in Bugzilla that we are working on for the next
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release (no, we don't have a date yet!).
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Legalese
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--------
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This software is copyrighted by The Regents of the University of California
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and the National Center for Ecological Analysis and Synthesis
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and licensed under the GNU GPL; see the 'LICENSE' file for
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details.
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This material is based upon work supported by the
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National Science Foundation under Grant No. DEB99-80154 and DBI99-04777.
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Any opinions, findings and conclusions or recomendations expressed in this
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material are those of the author(s) and do not necessarily reflect
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the views of the National Science Foundation (NSF).
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