JettyHttpServerErrorHandler.java

/*
 * Copyright 2011 Sonian Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.sonian.elasticsearch.http.jetty.error;

import org.eclipse.jetty.http.MimeTypes;
import org.eclipse.jetty.server.Dispatcher;
import org.eclipse.jetty.server.AbstractHttpConnection;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.ErrorHandler;
import org.eclipse.jetty.util.ByteArrayISO8859Writer;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * @author drewr
 */
public class JettyHttpServerErrorHandler extends ErrorHandler {

    @Override
    public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException {
        AbstractHttpConnection connection = AbstractHttpConnection.getCurrentConnection();
        connection.getRequest().setHandled(true);
        String method = request.getMethod();
        response.setContentType(MimeTypes.TEXT_PLAIN_8859_1);
        ByteArrayISO8859Writer writer= new ByteArrayISO8859Writer(4096);
        writer.write(request.getAttribute(Dispatcher.ERROR_STATUS_CODE) + " " +
                     request.getAttribute(Dispatcher.ERROR_MESSAGE) + " " +
                     request.getAttribute(Dispatcher.ERROR_REQUEST_URI));
        writer.flush();
        response.setContentLength(writer.size());
        writer.writeTo(response.getOutputStream());
        writer.destroy();
    }
}