Following are authoritative FGDC Content Standard for Digital Geospatial Metadata (CSDGM) XML schema document (XSD) and document type definition (DTD) URLs for FGDC-STD-001-1998. These documents are used to validate a FGDC XML metadata file.

• http://www.fgdc.gov/metadata/fgdc-std-001-1998.dtd - Usage:
  

  <?xml version="1.0" encoding="ISO-8859-1"?>
  <!DOCTYPE metadata SYSTEM "http://www.fgdc.gov/metadata/fgdc-std-001-1998.dtd">

• http://www.fgdc.gov/metadata/fgdc-std-001-1998.xsd - Usage:
  

  <metadata 
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
       xsi:noNamespaceSchemaLocation="http://www.fgdc.gov/metadata/fgdc-std-001-1998.xsd">

There are also annotated and modified FGDC-STD-001-1998 schema available for download:

Tomcat kept running out of memory when running it as a service from within Eclipse. Following is a solution:

Double-click on your Tomcat service under the Servers tab, and click on the "Open launch configuration" to open the Tomcat launch configuration window. On the Arguments tab, append the two following lines in the "VM arguments" form window:

-XX:MaxPermSize=128m
-Xmx1024m

How-to on running Tomcat within Eclipse:

• Eclipse Help: Creating a server
• IBM: Developing Web applications with Tomcat and Eclipse

In order to create metadata for both static datasets and dynamic, online services and for use with CSW, the OGC created an xml schema that merges the schema for ISO19115 (dataset metadata) and ISO19119 (service metadata) (see secion D.1.5, page 105 in OGC 07-045). The way that was accomplished was by creating a schema located at http://schemas.opengis.net/csw/2.0.2/profiles/apiso/1.0.0/apiso.xsd. The contents of that schema are quite simple -- it looks like this:

Following is a list of Web Service client, server, and hybrid applications we are aware of that are supposed to handle the CSW 2.0.2 protocol. Check out OGC's registry of products for more CSW implementations.

1. On the virtual machine, create a folder for, and download the Java Profiler, unzip it:

2. mkdir yourkit (this makes the folder in the root user's home directory)
   cd yourkit
   wget http://www.yourkit.com/download/yjp-8.0.19.zip
   unzip yjp-8.0.19.zip

3. Generate a script that allows you to use the Yourkit tool from a remote location

4. java -jar /root/yourkit/yjp-8.0.19/lib/yjp.jar -integrate

 This is an example Python script that showcases GeoNetwork authentication, session handling, and CSW transactions. 

This is an example script on how to do XSLT transformations in Python 2.6 through the Gnome libxml XML C parser and toolkit. The relative fast C library is available on multiple platforms but you will also need Python bindings for libxml2 and libxslt. There is a handy libxml2 and libxslt Python bindings installer for Windows which also includes the C libraries in DLL form.

This is a Python example script for importing GeoNetwork Metadata Exchange Format 1.1 (MEF) archives to GeoNetwork 2.4.2's mef.import service. The mef.import service requires a multipart/form-data POST through a modified MultipartPostHandler.py library which now supports Unicode (urllib2). It has been tested in Windows XP and Python 2.6.

In the event that you don't want to open port 5432 to any traffic, or you don't want to configure PostgreSQL to listen to any remote traffic, or if you simply can't make it work right (that's where I am right now...) you can use SSH Tunneling to make a remote connection to the PostgreSQL instance. Here's how: