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# '$RCSfile$'
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# '$Author: tao $'
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# '$Revision: 1730 $'
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# '$Date: 2003-07-15 14:08:02 -0700 (Tue, 15 Jul 2003) $'
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#
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Metacat: XML Metadata Database
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------------------------------
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Version: 1.3.0 Release
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Send feedback and bugs to: metacat-dev@ecoinformatics.org
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http://bugzilla.ecoinformatics.org
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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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Metacat is 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. Metacat supports
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several databases on the back-end, including Oracle, PostgreSQL and SQL
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Server. The server supports XML document storage, retrievel, query,
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validation, and transformation (using the XSLT stylesheet language).
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In addition, there is a mechanism for replicating the database
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to other metacat instances for backup and load balancing purposes.
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Metacat currently uses an LDAP database for authenticating users, but
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was written to accomodate other authentication services as well.
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Release Notes
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In this release, the structure of the xml_access table was changed and a new
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table, xml_accesssubtree was added. If you try to update a previously
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installed Metacat, you should run a script file to updated the table structure
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before installation.
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For Oracle user: At the SQLPLUS prompt type the following -
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@src/reviseformetacat13.sql
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For Postgresql user: At install directory prompt type the following -
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psql exp < src/reviseformetacat13_postgres.sql
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(where 'exp' is the database name).
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After installation, user should run "ant schemasql" command to register EML2
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schema in xml_catalog table.
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If you are a new Metacat user, this step is unneeded.
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New Features in 1.3.0
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1) Partialy support EML2 document. User can store, query, read and write
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EML2 documents. However, Metacat only support access control in resource
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level. The subtree level access control will be ignored.
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2) Support other xml document base on namespace/schema.
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3) Support query for attribute value
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4) Assign MIME type to data file base on metadata when user try to read it.
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5) Owner can assign access rules to a document which does not have access
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document to apply it.
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6) Support exporting single file, not only whole package
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Fixes in 1.3.0:
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1) Couldn't finish delta T replication for large set of documents.
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2) Couldn't create access control during delta T replication.
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3) Eorr will be written to a seperated log file if some documents
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were failed in replication.
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4) Decrease the time to create access rules during insert or update
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a package.
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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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If you discover a bug
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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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This product includes software developed by the Apache Software
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Foundation (http://www.apache.org/). See the LICENSE file in lib/apache
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for details.
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The source code, object code, and documentation in the com.oreilly.servlet
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package is copyright and owned by Jason Hunter. See the cos-license.html file
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for details of the license. Licensor retains title to and ownership of the
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Software and all enhancements, modifications, and updates to the Software.
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