/* Copyright (c) 2001 - 2007 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.wcs.requests.readers;
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.geoserver.wcs.WCSInfo;
import org.vfny.geoserver.Request;
import org.vfny.geoserver.util.requests.CapabilitiesHandler;
import org.vfny.geoserver.util.requests.readers.XmlRequestReader;
import org.vfny.geoserver.wcs.WcsException;
import org.vfny.geoserver.wcs.requests.WCSCapabilitiesRequest;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.ParserAdapter;
/**
* reads a WCS GetCapabilities request from an XML stream
*
* @author $Author: Alessio Fabiani (alessio.fabiani@gmail.com) $ (last
* modification)
* @author $Author: Simone Giannecchini (simboss1@gmail.com) $ (last
* modification)
* @version $Id: CapabilitiesXmlReader.java 11477 2009-02-28 19:52:49Z aaime $
*/
public class CapabilitiesXmlReader extends XmlRequestReader {
/**
* Constructs a new reader.
*
* @param service
* The WFS service handling the request.
*/
public CapabilitiesXmlReader(WCSInfo wcs) {
super(wcs);
}
/**
* 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 WcsException {
InputSource requestSource = new InputSource(reader);
// instantiante parsers and content handlers
CapabilitiesHandler currentRequest = new CapabilitiesHandler(
new WCSCapabilitiesRequest((WCSInfo) getService()));
// 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 WcsException(e, "XML capabilities request parsing error",
getClass().getName());
} catch (IOException e) {
throw new WcsException(e, "XML capabilities request input error",
getClass().getName());
} catch (ParserConfigurationException e) {
throw new WcsException(e, "Some sort of issue creating parser",
getClass().getName());
}
Request r = currentRequest.getRequest(req);
if (r.getService() != null) {
final String service = r.getService();
if (!service.trim().toUpperCase().startsWith("WCS")) {
throw new WcsException("SERVICE parameter is wrong.");
}
} else {
throw new WcsException("SERVICE parameter is mandatory.");
}
if (r.getVersion() != null) {
final String version = r.getVersion();
if (!version.equals("1.0.0")) {
throw new WcsException("VERSION parameter is wrong.");
}
} else {
throw new WcsException("VERSION parameter is mandatory.");
}
/*
* if (r.getRequest() != null) { final String requestType =
* r.getRequest(); if (!requestType.equalsIgnoreCase("GetCapabilities")
* ) { throw new WcsException("REQUEST parameter is wrong."); } } else {
* throw new WcsException("REQUEST parameter is mandatory."); }
*/
return r;
}
}