/**
* 以阻塞的方式立即下载一个文件，该方法会覆盖已经存在的文件
*
* @param task
* @return "ok" if download success (else return errmessage);
*/
static String download(DownloadTask task) {
if (!openedStatus && show) openStatus();
URL url;
HttpURLConnection conn;
try {
url = new URL(task.getOrigin());
conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(30000);
conn.setReadTimeout(30000);
conn.setRequestProperty(
"User-Agent",
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.134 Safari/"
+ Math.random());
if ("www.imgjav.com".equals(url.getHost())) { // 该网站需要带cookie请求
conn.setRequestProperty(
"User-Agent",
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.134 Safari/537.36");
// conn.setRequestProperty("Cookie", "__cfduid=d219ea333c7a9b5743b572697b631925a1446093229;
// cf_clearance=6ae62d843f5d09acf393f9e4eb130d9366840c82-1446093303-28800");
conn.setRequestProperty(
"Cookie",
"__cfduid=d6ee846b378bb7d5d173a05541f8a2b6a1446090548; cf_clearance=ea10e8db31f8b6ee51570b118dd89b7e616d7b62-1446099714-28800");
conn.setRequestProperty("Host", "www.imgjav.com");
}
Path directory = Paths.get(task.getDest()).getParent();
if (!Files.exists(directory)) Files.createDirectories(directory);
} catch (Exception e) {
e.printStackTrace();
return e.getMessage();
}
try (InputStream is = conn.getInputStream();
BufferedInputStream in = new BufferedInputStream(is);
FileOutputStream fos = new FileOutputStream(task.getDest());
OutputStream out = new BufferedOutputStream(fos); ) {
int length = conn.getContentLength();
if (length < 1) throw new IOException("length<1");
byte[] binary = new byte[length];
byte[] buff = new byte[65536];
int len;
int index = 0;
while ((len = in.read(buff)) != -1) {
System.arraycopy(buff, 0, binary, index, len);
index += len;
allLen += len; // allLen有线程安全的问题 ，可能会不正确。无需精确数据，所以不同步了
task.setReceivePercent(String.format("%.2f", ((float) index / length) * 100) + "%");
}
out.write(binary);
} catch (IOException e) {
e.printStackTrace();
return e.getMessage();
}
return "ok";
}
private static void extractAndLoadNativeLibs() throws IOException {
Path target = Paths.get(ioTmpDir, "/tklib");
if (!target.toFile().exists()) {
Files.createDirectories(target);
}
final boolean windows = System.getProperty("os.name").equalsIgnoreCase("windows");
String fileExtension = windows ? "dll" : "so";
String prefix = windows ? "" : "lib";
String libPattern = fileExtension.equals("dll") ? "-windows" : "-linux" + "-x86";
if (System.getProperty("sun.arch.data.model").equals("64")) {
libPattern += "_64";
}
libPattern += "." + fileExtension;
// System.err.println(libPattern);
System.setProperty("java.library.path", target.toString());
// System.err.println(System.getProperty("java.library.path"));
extractAndLoadNativeLib(prefix + "JCudaDriver" + libPattern, target);
extractAndLoadNativeLib(prefix + "JCudaRuntime" + libPattern, target);
extractAndLoadNativeLib(prefix + "JCurand" + libPattern, target);
}
// void compileKernelsPtx()
static void compileKernelsPtx() throws IOException {
if (!new File(ioTmpDir, PHEROMONES_CU + ".ptx").exists()) { // TODO externalize
try (InputStream is =
CudaEngine.class.getResourceAsStream(
"/turtlekit/cuda/kernels/" + PHEROMONES_CU + ".cu")) {
final Path path = Paths.get(ioTmpDir, PHEROMONES_CU + ".cu");
try {
Files.copy(is, path);
} catch (FileAlreadyExistsException e) {
}
System.err.println("--------------- Compiling ptx ----------------------");
KernelLauncher.create(
path.toString(),
Kernel.DIFFUSION_TO_TMP.name(),
false,
"--use_fast_math",
"--prec-div=false"); // ,"--gpu-architecture=sm_20");
} catch (IOException e) {
throw e;
}
}
}
private static void extractAndLoadNativeLib(String nativeLibName, Path target) {
// System.err.println("loading "+nativeLibName);
final Path path = Paths.get(target.toString(), nativeLibName);
if (!path.toFile().exists()) {
try (InputStream is =
CudaEngine.class
.getClassLoader()
.getResourceAsStream("/lib/" + nativeLibName)) { // TODO TK property for lib dir
Files.copy(is, path);
} catch (IOException e) {
e.printStackTrace();
} catch (NullPointerException e) { // TODO find a way to do it instead of eclipse
final Path eclipsePath = FileSystems.getDefault().getPath("lib", nativeLibName);
try {
Files.copy(eclipsePath, path);
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
}
}
System.load(path.toString());
// System.load(nativeLibName);
}