Project

General

Profile

1
#
2
#  '$RCSfile$'
3
#   '$Author: tao $'
4
# '$Revision: 983 $'
5
#     '$Date: 2002-04-08 09:55:20 -0700 (Mon, 08 Apr 2002) $'
6
#
7

    
8
Metacat: XML Metadata Database
9
------------------------------
10

    
11
Version: 1.1 Release
12

    
13
Send feedback and bugs to: knb-software@nceas.ucsb.edu
14

    
15
Contributors: Matt Jones (jones@nceas.ucsb.edu)
16
              Chad Berkley (berkley@nceas.ucsb.edu)
17
              Jing Tao (tao@nceas.ucsb.edu)
18
              Jivka Bojilova (bojilova@nceas.ucsb.edu)
19
              Dan Higgins (higgins@nceas.ucsb.edu)
20
              
21
Metacat is a flexible database storage system for XML formatted
22
documents. Metacat models the structure of the XML document, therefore
23
allowing storage of XML documents with arbitrary schemas. The current
24
implementation stores data in a backend Oracle RDBMS, but was designed
25
to support other RDBMS systems as well. The server supports XML document
26
storage, retrievel, query, validation, and transformation (using the XSLT
27
stylesheet language).  In addition, there is a mechanism for replicating
28
the database to other metacat instances for backup and load balancing
29
purposes.  Metacat currently uses an LDAP database for authenticating
30
users, but was written to accomodate other authentication services as well.
31

    
32
Release Notes
33
-------------
34
New feature in 1.1:
35
  1) Added functionality to export a zipped data package. The zip file contains
36
     all of the data and metadata as well as a rendered html summary of
37
     the metadata.
38
  2) Changed version control mechanism.  Metacat can now except any version of 
39
     a document as long as the given version number is greater than the
40
     current one.  The new version number does not have to be exactly one
41
     greater than the current version.
42
  3) Update xerces.jar file to version 1.4.4
43
Bugs fixed include:
44
  Fixes in 1.1
45
   1) Fixed problem that if the user exists in one of the referred trees in ldap
46
      server, now authentication will not succeed when the password is
47
      incorrect.
48
   2) Changed the default behavior of the access control functionality 
49
      If a member document of data package doesn't have an access control list, 
50
      access control rules of the main package document will not apply to the 
51
      member document.
52
   3) Fixed minor bugs with document access control.
53
   4) Allowed new version of data files to be uploaded and handled.
54
   5) Fixed bug where the client couldn't get principals or groups from ldap 
55
      server.
56
  Fixes in 1.0.3
57
   1) Fixed problem with Metacat not being able to query for group names when
58
      and LDAP referral server was down.  Added an LDAP timeout of 5 seconds
59
      for all referral activity.
60
   2) Fixed problem where invalid xml characters such as ampersands (&) could
61
      be inserted into the resultset xml stream.  
62
  Fixes in 1.0.2
63
   1) Fixed problem with LDAP locking up Metacat when a referral server
64
      was not available.
65
  Fixes in 1.0.1
66
   1) Fixed problem with authenticating using LDAP referrals
67
   2) Fixed bug that prevent groups from being used in access documents
68
Installation
69
------------
70
See the file "docs/user/metacatinstall.html" for detailed instructions.
71

    
72
Documentation
73
-------------
74
See the docs directory for detailed documentation and installation 
75
instructions.
76

    
77
Details of the Metacat architecture can be found on the website for 
78
the Knowledge Network for Biocomplexity (KNB):
79

    
80
  http://knb.ecoinformatics.org/software/metacat/
81

    
82
Contributions to this work are welcome.  Please see the above web site
83
for details on how to contribute.
84

    
85
Major Known Bugs or Feature Requests (see http://bugzilla.ecoinformatics.org)
86
-----------------------------------------------------------------------------
87
If you discover a bug
88
please report it, either by email (above) or by using our bug tracking
89
system (http://bugzilla.ecoinformatics.org). There is a list of currently
90
unimplemented features in Bugzilla that we are working on for the next 
91
release (no, we don't have a date yet!).
92

    
93
Legalese
94
--------
95
This software is copyrighted by The Regents of the University of California
96
and the National Center for Ecological Analysis and Synthesis
97
and licensed under the GNU GPL; see the 'LICENSE' file for
98
details.
99

    
100
This material is based upon work supported by the 
101
National Science Foundation under Grant No. DEB99-80154 and DBI99-04777.
102
Any opinions, findings and conclusions or recomendations expressed in this
103
material are those of the author(s) and do not necessarily reflect 
104
the views of the National Science Foundation (NSF).
(2-2/4)