/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.sshd;
import java.io.ByteArrayOutputStream;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;
import java.net.ServerSocket;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import org.apache.sshd.client.kex.DHG1;
import org.apache.sshd.common.Cipher;
import org.apache.sshd.common.KeyExchange;
import org.apache.sshd.common.NamedFactory;
import org.apache.sshd.common.cipher.BlowfishCBC;
import org.apache.sshd.common.keyprovider.FileKeyPairProvider;
import org.apache.sshd.util.BogusPasswordAuthenticator;
import org.apache.sshd.util.EchoShellFactory;
import org.apache.sshd.util.TeePipedOutputStream;
import org.junit.After;
import static org.junit.Assert.assertArrayEquals;
import org.junit.Before;
import org.junit.Test;
public class LoadTest {
private SshServer sshd;
private int port;
@Before
public void setUp() throws Exception {
ServerSocket s = new ServerSocket(0);
port = s.getLocalPort();
s.close();
sshd = SshServer.setUpDefaultServer();
sshd.setPort(port);
sshd.setKeyPairProvider(new FileKeyPairProvider(new String[] { "src/test/resources/hostkey.pem" }));
sshd.setShellFactory(new EchoShellFactory());
sshd.setPasswordAuthenticator(new BogusPasswordAuthenticator());
sshd.start();
}
@After
public void tearDown() throws Exception {
sshd.stop();
}
@Test
public void testLoad() throws Exception {
test("this is my command", 4, 4);
}
@Test
public void testBigResponse() throws Exception {
final StringBuilder response = new StringBuilder(1000000);
for (int i = 0; i < 100000; i++) {
response.append("0123456789");
}
test(response.toString(), 1, 1);
}
protected void test(final String msg, final int nbThreads, final int nbSessionsPerThread) throws Exception {
final List<Throwable> errors = new ArrayList<Throwable>();
final CountDownLatch latch = new CountDownLatch(nbThreads);
for (int i = 0; i < nbThreads; i++) {
Runnable r = new Runnable() {
public void run() {
try {
for (int i = 0; i < nbSessionsPerThread; i++) {
runClient(msg);
}
} catch (Throwable t) {
errors.add(t);
} finally {
latch.countDown();
}
}
};
new Thread(r).start();
}
latch.await();
if (errors.size() > 0) {
throw new Exception("Errors", errors.get(0));
}
}
protected void runClient(String msg) throws Exception {
SshClient client = SshClient.setUpDefaultClient();
client.getProperties().put(SshClient.MAX_PACKET_SIZE, Integer.toString(1024 * 16));
client.getProperties().put(SshClient.WINDOW_SIZE, Integer.toString(1024 * 8));
client.setKeyExchangeFactories(Arrays.<NamedFactory<KeyExchange>>asList(
new DHG1.Factory()));
client.setCipherFactories(Arrays.<NamedFactory<Cipher>>asList(
new BlowfishCBC.Factory()));
client.start();
ClientSession session = client.connect("localhost", port).await().getSession();
session.authPassword("sshd", "sshd").await().isSuccess();
ClientChannel channel = session.createChannel(ClientChannel.CHANNEL_SHELL);
ByteArrayOutputStream sent = new ByteArrayOutputStream();
PipedOutputStream pipedIn = new TeePipedOutputStream(sent);
channel.setIn(new PipedInputStream(pipedIn));
ByteArrayOutputStream out = new ByteArrayOutputStream();
ByteArrayOutputStream err = new ByteArrayOutputStream();
channel.setOut(out);
channel.setErr(err);
channel.open();
msg += "\nexit\n";
pipedIn.write(msg.getBytes());
pipedIn.flush();
channel.waitFor(ClientChannel.CLOSED, 0);
channel.close(false);
client.stop();
assertArrayEquals(msg.getBytes(), out.toByteArray());
}
}