/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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 io.undertow.servlet.test.upgrade;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpUpgradeHandler;
import javax.servlet.http.WebConnection;
import io.undertow.UndertowLogger;
/**
* Simple upgrade servlet. Because the apache http client does not handle upgrades we keep faking http
* after we upgrade
*
* @author Stuart Douglas
*/
public class UpgradeServlet extends HttpServlet {
@Override
protected void doGet(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
req.upgrade(Handler.class);
}
public static class Handler implements HttpUpgradeHandler {
@Override
public void init(final WebConnection wc) {
try {
String message = "";
do {
//an incredibly poxy implementation of an echo server, that uses /r/n/r/n to delineate messages
final StringBuilder builder = new StringBuilder();
byte[] data = new byte[100];
int read;
while (!builder.toString().endsWith("\r\n\r\n") && (read = wc.getInputStream().read(data)) != -1) {
builder.append(new String(data, 0, read));
}
wc.getOutputStream().print(builder.toString());
wc.getOutputStream().flush();
message = builder.toString();
} while (!"exit\r\n\r\n".equals(message));
} catch (IOException e) {
UndertowLogger.REQUEST_IO_LOGGER.ioException(e);
} finally {
try {
wc.close();
} catch (Exception e) {
UndertowLogger.REQUEST_IO_LOGGER.ioException(new IOException(e));
}
}
}
@Override
public void destroy() {
}
}
}