/* Copyright (c) 2001, 2003 TOPP - www.openplans.org. All rights reserved.
* This code is licensed under the GPL 2.0 license, availible at the root
* application directory.
*/
package org.vfny.geoserver.wms.requests;
import java.io.IOException;
import java.io.Reader;
import javax.servlet.http.HttpServletRequest;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.vfny.geoserver.Request;
import org.vfny.geoserver.util.requests.CapabilitiesHandler;
import org.vfny.geoserver.util.requests.readers.XmlRequestReader;
import org.vfny.geoserver.wms.WmsException;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.ParserAdapter;
/**
* reads a WMS GetCapabilities request from an XML stream
*
* @author Gabriel Rold?n
* @version $Id: CapabilitiesXmlReader.java,v 1.8 2004/02/13 19:30:39 dmzwiers Exp $
*
* @task TODO: see if it must be refactored to read WMS GetCapabilities too
*/
public class CapabilitiesXmlReader extends XmlRequestReader {
/**
* Reads the Capabilities XML request into a CapabilitiesRequest object.
*
* @param reader The plain POST text from the client.
*
* @return The read CapabilitiesRequest object.
*
* @throws WmsException For any problems reading the request
*/
public Request read(Reader reader, HttpServletRequest req) throws WmsException {
InputSource requestSource = new InputSource(reader);
// instantiante parsers and content handlers
CapabilitiesHandler currentRequest = new CapabilitiesHandler();
// read in XML file and parse to content handler
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser parser = factory.newSAXParser();
ParserAdapter adapter = new ParserAdapter(parser.getParser());
adapter.setContentHandler(currentRequest);
adapter.parse(requestSource);
LOGGER.fine("just parsed: " + requestSource);
} catch (SAXException e) {
throw new WmsException(e, "XML capabilities request parsing error",
getClass().getName());
} catch (IOException e) {
throw new WmsException(e, "XML capabilities request input error",
getClass().getName());
} catch (ParserConfigurationException e) {
throw new WmsException(e, "Some sort of issue creating parser",
getClass().getName());
}
Request r = currentRequest.getRequest(req);
return r;
}
}