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/*******************************************************************************
* Copyright (c) 2013 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.ats.rest.internal.util;
import static org.eclipse.osee.template.engine.OseeTemplateTokens.ExceptionHtml;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;
import org.apache.commons.lang.StringEscapeUtils;
import org.eclipse.osee.framework.jdk.core.type.IResourceRegistry;
import org.eclipse.osee.framework.jdk.core.util.Lib;
import org.eclipse.osee.template.engine.PageFactory;
/**
* @author Ryan D. Brooks
*/
@Provider
public final class JaxRsExceptionMapper implements ExceptionMapper<Exception> {
private final IResourceRegistry registry;
private static final int NumOfCharsInTypicalStackTrace = 2200;
public JaxRsExceptionMapper(IResourceRegistry registry) {
this.registry = registry;
}
/**
* Create valid xhtml exception page that includes the full stack trace and return a reasonable error page even if
* page creation fails too.
*/
@Override
public Response toResponse(Exception ex) {
return Response.serverError().entity(exceptionToHtml(ex)).type(MediaType.TEXT_HTML_TYPE).build();
}
String exceptionToHtml(Exception ex) {
String html;
try {
String exStr = Lib.exceptionToString(ex);
html = PageFactory.realizePage(registry, ExceptionHtml, "title", ex.toString(), "stacktrace", exStr);
} catch (Exception ex1) {
StringBuilder strB = new StringBuilder(NumOfCharsInTypicalStackTrace);
strB.append("<pre>\n");
strB.append(StringEscapeUtils.escapeHtml(Lib.exceptionToString(ex)));
strB.append("\n\nAddtional exception while reporting first exception:\n");
strB.append(StringEscapeUtils.escapeHtml(Lib.exceptionToString(ex1)));
strB.append("\n</pre>");
html = strB.toString();
}
return html;
}
}
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