/* 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.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintStream;
import java.util.Collections;
import java.util.List;
import java.util.logging.Level;
import net.opengis.ows10.ExceptionReportType;
import net.opengis.ows10.ExceptionType;
import net.opengis.ows10.Ows10Factory;
import org.geoserver.ows.URLMangler.URLType;
import org.geoserver.ows.util.OwsUtils;
import org.geoserver.ows.util.RequestUtils;
import org.geoserver.ows.util.ResponseUtils;
import org.geoserver.ows.xml.v1_0.OWSConfiguration;
import org.geoserver.platform.ServiceException;
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/1.0.0/owsExceptionReport.xsd}.
* </p>
*
* @author Justin Deoliveira, The Open Planning Project
*
*/
public class DefaultServiceExceptionHandler extends ServiceExceptionHandler {
protected boolean verboseExceptions = false;
/**
* Constructor to be called if the exception is not for a particular service.
*
*/
public DefaultServiceExceptionHandler() {
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 DefaultServiceExceptionHandler(List services) {
super(services);
}
/**
* Writes out an OWS ExceptionReport document.
*/
public void handleServiceException(ServiceException exception, Request request) {
Ows10Factory factory = Ows10Factory.eINSTANCE;
ExceptionType e = factory.createExceptionType();
if (exception.getCode() != null) {
e.setExceptionCode(exception.getCode());
} else {
//set a default
e.setExceptionCode("NoApplicableCode");
}
e.setLocator(exception.getLocator());
//add the message
StringBuffer sb = new StringBuffer();
OwsUtils.dumpExceptionMessages(exception, sb, true);
e.getExceptionText().add(sb.toString());
e.getExceptionText().addAll(exception.getExceptionText());
if(verboseExceptions) {
//add the entire stack trace
//exception.
e.getExceptionText().add("Details:");
ByteArrayOutputStream trace = new ByteArrayOutputStream();
exception.printStackTrace(new PrintStream(trace));
e.getExceptionText().add(new String(trace.toByteArray()));
}
ExceptionReportType report = factory.createExceptionReportType();
report.setVersion("1.0.0");
report.getException().add(e);
request.getHttpResponse().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/1.0.0/owsExceptionReport.xsd");
encoder.setSchemaLocation(org.geoserver.ows.xml.v1_0.OWS.NAMESPACE, schemaLocation);
try {
encoder.encode(report, org.geoserver.ows.xml.v1_0.OWS.EXCEPTIONREPORT,
request.getHttpResponse().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:", e);
} finally {
try {
request.getHttpResponse().getOutputStream().flush();
} catch (IOException ioe) {
}
}
}
}