/* 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.geoserver.ows;
import static org.geoserver.ows.util.ResponseUtils.*;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.logging.Level;
import javax.servlet.http.HttpServletResponse;
import net.opengis.ows11.ExceptionReportType;
import net.opengis.ows11.Ows11Factory;
import org.geoserver.ows.URLMangler.URLType;
import org.geoserver.ows.util.RequestUtils;
import org.geoserver.platform.Service;
import org.geoserver.platform.ServiceException;
import org.geotools.ows.v1_1.OWS;
import org.geotools.ows.v1_1.OWSConfiguration;
import org.geotools.xml.Encoder;
/**
* A default implementation of {@link ServiceExceptionHandler} which outputs
* as service exception in a <code>ows:ExceptionReport</code> document.
* <p>
* This service exception handler will generate an OWS exception report,
* see {@linkplain http://schemas.opengis.net/ows/1.1.0/owsExceptionReport.xsd}.
* </p>
*
* @author Justin Deoliveira, The Open Planning Project
*
*/
public class OWS11ServiceExceptionHandler extends ServiceExceptionHandler {
protected boolean verboseExceptions = false;
/**
* Constructor to be called if the exception is not for a particular service.
*
*/
public OWS11ServiceExceptionHandler() {
super(Collections.EMPTY_LIST);
}
/**
* Constructor to be called if the exception is for a particular service.
*
* @param services List of services this handler handles exceptions for.
*/
public OWS11ServiceExceptionHandler(List services) {
super(services);
}
/**
* Constructor to be called if the exception is for a particular service.
*
* @param services List of services this handler handles exceptions for.
*/
public OWS11ServiceExceptionHandler(Service service) {
super(Arrays.asList(service));
}
/**
* Writes out an OWS ExceptionReport document.
*/
public void handleServiceException(ServiceException exception, Request request) {
Ows11Factory factory = Ows11Factory.eINSTANCE;
ExceptionReportType report = Ows11Util.exceptionReport( exception, verboseExceptions );
HttpServletResponse response = request.getHttpResponse();
response.setContentType("application/xml");
//response.setCharacterEncoding( "UTF-8" );
OWSConfiguration configuration = new OWSConfiguration();
Encoder encoder = new Encoder(configuration, configuration.schema());
encoder.setIndenting(true);
encoder.setIndentSize(2);
encoder.setLineWidth(60);
String schemaLocation = buildSchemaURL(baseURL(request.getHttpRequest()), "ows/1.1.0/owsAll.xsd");
encoder.setSchemaLocation(OWS.NAMESPACE, schemaLocation);
try {
encoder.encode(report, OWS.ExceptionReport,
response.getOutputStream());
} catch (Exception ex) {
//throw new RuntimeException(ex);
// Hmm, not much we can do here. I guess log the fact that we couldn't write out the exception and be done with it...
LOGGER.log(Level.INFO, "Problem writing exception information back to calling client:", ex);
} finally {
try {
response.getOutputStream().flush();
} catch (IOException ioe) {
}
}
}
}