/*
* Copyright (c) xlightweb.org, 2008 - 2010. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Please refer to the LGPL license at: http://www.gnu.org/copyleft/lesser.txt
* The latest copy of this software may be found on http://www.xlightweb.org/
*/
package org.xlightweb;
import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.BufferUnderflowException;
import java.nio.channels.FileChannel;
import org.junit.Test;
import org.xlightweb.BodyDataSink;
import org.xlightweb.FutureResponseHandler;
import org.xlightweb.HttpRequestHeader;
import org.xlightweb.HttpResponseHeader;
import org.xlightweb.IHttpExchange;
import org.xlightweb.IHttpRequestHandler;
import org.xlightweb.client.HttpClient;
import org.xlightweb.server.HttpServer;
/**
*
* @author grro@xlightweb.org
*/
public final class CommandStreamingTest {
@Test
public void testStreaming() throws Exception {
HttpServer server = new HttpServer(new RequestHandler());
server.start();
HttpClient httpClient = new HttpClient();
FutureResponseHandler respHdl = new FutureResponseHandler();
BodyDataSink outChannel = httpClient.send(new HttpRequestHeader("POST", "http://localhost:" + server.getLocalPort() + "/conversation"), respHdl);
outChannel.flush();
BlockingBodyDataSource inChannel = respHdl.getResponse().getBlockingBody();
inChannel.readStringByDelimiter("\r\n"); // read greeting
// send first request
File file = QAUtil.createTestfile_40k();
outChannel.write("GET FILE: " + file.getAbsolutePath() + "\r\n");
int length = inChannel.readInt();
String s = inChannel.readStringByLength(length);
QAUtil.isEquals(file, s);
// send second request
File file2 = QAUtil.createTestfile_400k();
outChannel.write("GET FILE: " + file2.getAbsolutePath() + "\r\n");
length = inChannel.readInt();
s = inChannel.readStringByLength(length);
QAUtil.isEquals(file2, s);
file.delete();
file2.delete();
httpClient.close();
server.close();
}
private static final class RequestHandler implements IHttpRequestHandler {
public void onRequest(IHttpExchange exchange) throws IOException, BadMessageException {
IHttpRequest request = exchange.getRequest();
if (!request.getRequestURI().equalsIgnoreCase("/conversation")) {
exchange.sendError(400);
return;
}
// write response header and get out channel
BodyDataSink outChannel = exchange.send(new HttpResponseHeader(200));
// get set handler for the input channel
request.getNonBlockingBody().setDataHandler(new CommandHandler(outChannel));
outChannel.write("ready\r\n");
}
}
private static final class CommandHandler implements IBodyDataHandler {
private BodyDataSink outChannel;
public CommandHandler(BodyDataSink outChannel) {
this.outChannel = outChannel;
}
public boolean onData(NonBlockingBodyDataSource bodyDataSource) throws BufferUnderflowException {
try {
String s = bodyDataSource.readStringByDelimiter("\r\n");
if (s.startsWith("GET FILE:")) {
String filename = s.substring("GET FILE:".length(), s.length()).trim();
RandomAccessFile file = new RandomAccessFile(filename, "r");
outChannel.write((int) file.length());
FileChannel fc = file.getChannel();
outChannel.transferFrom(fc);
fc.close();
file.close();
} else {
//...
}
} catch (IOException ioe) {
outChannel.destroy();
}
return true;
}
}
}