Schema location confusion 2003-03-31 - By Richard Rowell
I wrote a simple sax parser about a year ago that just runs through XML
files for no other purpose then validation of adherance to our schema.
This worked great, but recently I have noticed that it only works if the
schema files are in CWD. This was not always the case. I noticed today
that if I run it from a CWD where the schema is not located I get a
warning about one of the files "included" from the schema.
How can I coax the newer versions of Xerces to look for all of the
schema files in the the path specified by EXTERNAL_SCHEMA_PATH rather
then just pulling in the top level schema file from there and looking
for all of the included files in CWD?
Environment:
Sun Java SDK 1.4.1 on Linux
Xerces-j 2.3.0
The warning I get (/home/richard/dev/java/sax/ was CWD):
[Warning] :0:0: File
"file:///home/richard/dev/java/sax/sp_complex_types.xsd" not found
The entire schema is located in /home/richard/dev/import_spec. The
sp.xsd file includes the sp_complex_types.xsd like so:
<xsd:schema xmlns:xsd='http://www.w3.org/2001/XMLSchema'>
<xsd:include schemaLocation="sp_complex_types.xsd"/>
Here is how I set up the parser:
private static final String
EXTERNAL_SCHEMA_PROPERTY =
"http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation";
public static void main (String args[])
throws Exception
{
String schema_path = "/home/richard/dev/import_spec/sp.xsd";
XMLReader xr = new SAXParser();
MySAXApp handler = new MySAXApp();
xr.setContentHandler(handler);
xr.setErrorHandler(handler);
xr.setProperty(EXTERNAL_SCHEMA_PROPERTY, schema_path);
xr.setFeature("http://xml.org/sax/features/validation",true);
xr.setFeature("http://apache.org/xml/features/validation/schema",true);
xr.setFeature("http://apache.org/xml/features/validation/schema-full-checking"
,true );
...
--
Richard Rowell <richard@(protected)>
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