/**
* Copyright (C) 2012 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.component.rest;
import java.io.IOException;
import java.io.Writer;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.http.HttpHeaders;
import org.eclipse.jetty.http.HttpMethods;
import org.eclipse.jetty.http.HttpStatus;
import org.eclipse.jetty.http.MimeTypes;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.ErrorHandler;
import org.eclipse.jetty.util.ByteArrayISO8859Writer;
/**
* Error handler that returns simple, plain text responses.
*/
public class PlainTextErrorHandler extends ErrorHandler {
@Override
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException {
baseRequest.setHandled(true);
String method = request.getMethod();
if (!method.equals(HttpMethods.GET) && !method.equals(HttpMethods.POST) && !method.equals(HttpMethods.HEAD)) {
return;
}
response.setContentType(MimeTypes.TEXT_PLAIN_8859_1);
response.setHeader(HttpHeaders.CACHE_CONTROL, "must-revalidate,no-cache,no-store");
ByteArrayISO8859Writer writer = new ByteArrayISO8859Writer(4096);
handleErrorPage(request, writer, baseRequest.getResponse().getStatus(), baseRequest.getResponse().getReason());
writer.flush();
response.setContentLength(writer.size());
writer.writeTo(response.getOutputStream());
writer.destroy();
}
protected void handleErrorPage(HttpServletRequest request, Writer writer, int code, String message) throws IOException {
writer.write("Problem accessing ");
writer.write(request.getRequestURI());
writer.write("\nReason: ");
writer.write(message != null ? message : HttpStatus.getMessage(code));
}
}