/*
* 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.ace.agent.impl;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertTrue;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InterruptedIOException;
import java.net.URL;
import java.security.DigestInputStream;
import java.security.DigestOutputStream;
import java.security.MessageDigest;
import java.util.concurrent.CancellationException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import org.apache.ace.agent.ConnectionHandler;
import org.apache.ace.agent.DownloadHandle;
import org.apache.ace.agent.DownloadHandle.DownloadProgressListener;
import org.apache.ace.agent.DownloadHandler;
import org.apache.ace.agent.DownloadResult;
import org.apache.ace.agent.testutil.BaseAgentTest;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
/**
* Test cases for {@link DownloadHandleImpl}.
*/
public class DownloadHandleImplTest extends BaseAgentTest {
private AgentContextImpl m_agentContext;
private URL m_testContentURL;
private String m_digest;
private long m_contentLength;
@BeforeClass
public void setUp() throws Exception {
m_agentContext = mockAgentContext();
m_agentContext.setHandler(DownloadHandler.class, new DownloadHandlerImpl(m_agentContext.getWorkDir()));
m_agentContext.setHandler(ConnectionHandler.class, new ConnectionHandlerImpl());
replayTestMocks();
m_agentContext.start();
}
@BeforeMethod
public void setUpTestCase() throws Exception {
File file = File.createTempFile("test", ".bin", new File("generated"));
file.deleteOnExit();
DigestOutputStream dos = null;
try {
dos = new DigestOutputStream(new FileOutputStream(file), MessageDigest.getInstance("MD5"));
for (int i = 0; i < 10000; i++) {
dos.write(String.valueOf(System.currentTimeMillis()).getBytes());
dos.write(" Lorum Ipsum Lorum Ipsum Lorum Ipsum Lorum Ipsum Lorum Ipsum\n".getBytes());
}
dos.flush();
}
finally {
if (dos != null) {
dos.close();
}
}
m_testContentURL = file.toURI().toURL();
m_contentLength = file.length();
m_digest = new String(dos.getMessageDigest().digest());
}
@AfterClass
public void tearDown() throws Exception {
m_agentContext.stop();
verifyTestMocks();
clearTestMocks();
}
@Test
public void testCreateDownloadHandleGeneratesSameTemporaryFilenameOk() throws Exception {
DownloadHandler downloadHandler = m_agentContext.getHandler(DownloadHandler.class);
DownloadHandleImpl handle;
handle = (DownloadHandleImpl) downloadHandler.getHandle(m_testContentURL);
String tempFilename = handle.getDownloadFile().getAbsolutePath();
handle = (DownloadHandleImpl) downloadHandler.getHandle(m_testContentURL);
assertEquals(handle.getDownloadFile().getAbsolutePath(), tempFilename);
handle = (DownloadHandleImpl) downloadHandler.getHandle(m_testContentURL);
assertEquals(handle.getDownloadFile().getAbsolutePath(), tempFilename);
}
@Test
public void testDownloadOk() throws Exception {
DownloadHandler downloadHandler = m_agentContext.getHandler(DownloadHandler.class);
DownloadResult downloadResult;
Future<DownloadResult> future;
final DownloadHandle handle = downloadHandler.getHandle(m_testContentURL);
future = handle.start(null);
downloadResult = future.get(5, TimeUnit.SECONDS);
assertTrue(downloadResult.isComplete());
File file = ((DownloadHandleImpl) handle).getDownloadFile();
long fileLength = file.length();
assertTrue(file.exists(), file.getName() + " does not exist?!");
assertTrue(fileLength > 0 && fileLength == m_contentLength, "Nothing downloaded yet for " + file.getName() + "?");
// Verify the contents of the downloaded file is what we expect...
assertEquals(getDigest(file), m_digest);
}
@Test
public void testRestartDownloadOk() throws Exception {
DownloadHandler downloadHandler = m_agentContext.getHandler(DownloadHandler.class);
DownloadResult downloadResult;
Future<DownloadResult> future;
final DownloadHandle handle = downloadHandler.getHandle(m_testContentURL);
future = handle.start(new DownloadProgressListener() {
@Override
public void progress(long bytesRead) {
handle.stop();
}
});
assertDownloadStopped(future);
File file = ((DownloadHandleImpl) handle).getDownloadFile();
long fileLength = file.length();
// Discard the result...
handle.discard();
// Restart & finish the download...
DownloadHandle handle2 = downloadHandler.getHandle(m_testContentURL);
future = handle2.start(null);
downloadResult = future.get(5, TimeUnit.SECONDS);
assertTrue(downloadResult.isComplete());
fileLength = file.length();
assertTrue(file.exists(), file.getName() + " does not exist?!");
assertTrue(fileLength == m_contentLength, "Nothing downloaded yet for " + file.getName() + "?");
// Verify the contents of the downloaded file is what we expect...
assertEquals(getDigest(file), m_digest);
}
@Test
public void testResumeDownloadOk() throws Exception {
DownloadHandler downloadHandler = m_agentContext.getHandler(DownloadHandler.class);
DownloadResult downloadResult;
Future<DownloadResult> future;
final DownloadHandle handle = downloadHandler.getHandle(m_testContentURL);
// Start the download, but interrupt it after reading the first chunk of data...
future = handle.start(new DownloadProgressListener() {
@Override
public void progress(long bytesRead) {
System.out.printf("Downloaded %d bytes, interrupting download...%n", bytesRead);
Thread.currentThread().interrupt();
}
});
assertDownloadStopped(future);
File file = ((DownloadHandleImpl) handle).getDownloadFile();
long firstFileLength = file.length();
assertTrue(file.exists(), file.getName() + " does not exist?!");
assertTrue(firstFileLength > 0, "Nothing downloaded yet for " + file.getName() + "?");
assertTrue(firstFileLength < m_contentLength, "Everything downloaded for " + file.getName() + "?");
final DownloadHandle handle2 = downloadHandler.getHandle(m_testContentURL);
// Resume the download, but stop it after reading the first chunk of data...
future = handle2.start(new DownloadProgressListener() {
private int m_count = 5;
@Override
public void progress(long bytesRead) {
if (--m_count == 0) {
System.out.printf("Downloaded %d bytes, stopping download...%n", bytesRead);
handle2.stop();
}
}
});
assertDownloadStopped(future);
long secondFileLength = file.length();
System.out.printf("First size: %d, second size: %d; total = %d.%n", firstFileLength, secondFileLength, m_contentLength);
assertTrue(secondFileLength >= firstFileLength, "Downloaded restarted for " + file.getName() + "?");
assertTrue(secondFileLength < m_contentLength, "Everything downloaded for " + file.getName() + "?");
DownloadHandle handle3 = downloadHandler.getHandle(m_testContentURL);
// Resume the download, and finish it...
future = handle3.start(null);
downloadResult = future.get(5, TimeUnit.SECONDS);
assertTrue(downloadResult.isComplete());
assertEquals(file.length(), m_contentLength, "Not all content downloaded for " + file.getName() + "?");
// Verify the contents of the downloaded file is what we expect...
assertEquals(getDigest(file), m_digest);
}
private void assertDownloadStopped(Future<DownloadResult> future) throws Exception {
try {
DownloadResult result = future.get(5, TimeUnit.SECONDS);
assertFalse(result.isComplete());
}
catch (CancellationException exception) {
// Ok; also fine...
assertTrue(future.isCancelled());
}
catch (ExecutionException exception) {
Throwable cause = exception.getCause();
// On Solaris, interrupting an I/O operation yields an InterruptedIOException...
assertTrue(cause instanceof InterruptedIOException, "Expected InterruptedIOException, but got: " + cause);
}
}
private String getDigest(File file) throws Exception {
DigestInputStream dis = new DigestInputStream(new FileInputStream(file), MessageDigest.getInstance("MD5"));
while (dis.read() != -1) {
}
dis.close();
return new String(dis.getMessageDigest().digest());
}
}