public static void writeTo(String from, File to) throws IOException {
InputStream in = null;
OutputStream out = null;
try {
in = new ByteArrayInputStream(from.getBytes("UTF-8"));
out = new FileOutputStream(to, true);
while (true) {
synchronized (buffer) {
int amountRead = in.read(buffer);
if (amountRead == -1) {
break;
}
out.write(buffer, 0, amountRead);
}
}
} catch (FileNotFoundException e) {
Application.error(e);
} catch (UnsupportedEncodingException e) {
Application.error(e);
} catch (IOException e) {
Application.error(e);
} finally {
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
}
}
/** upload a file from an url and return a HashMap with key : the path, value : the file */
public static Map<String, File> uploadFileFromURL(String url, int userId) {
Application.debug("uploadFileFromURL : " + url, userId);
URL u = null;
try {
u = new URL(url);
} catch (MalformedURLException e) {
Application.error(e, userId);
return null;
}
URLConnection connection = null;
try {
connection = u.openConnection();
// Application.debug("-->length of content's connection : "+connection.getContentLength(),
// userId);
} catch (IOException e) {
Application.error(e, userId);
return null;
}
InputStream input = null;
try {
input = connection.getInputStream();
} catch (IOException e) {
Application.error(e, userId);
return null;
}
String fileName = findNameOfFileInURL(u);
FileOutputStream writeFile = null;
UUID uuid = UUID.randomUUID();
File dir = new File(Configuration.getTmp_dir() + "/" + uuid);
if (!dir.mkdir()) {
Application.error(
"cannot create directory uploadFileFromURL :" + Configuration.getTmp_dir() + "/" + uuid);
return null;
} else {
String name = fileName;
try {
writeFile = new FileOutputStream(Configuration.getTmp_dir() + "/" + uuid + "/" + name);
} catch (FileNotFoundException e) {
Application.error(e, userId);
return null;
}
byte[] buffer = new byte[2048];
int read;
// Application.debug("before reading", userId);
try {
copy(input, writeFile);
} catch (IOException e1) {
Application.error(e1, userId);
}
Map<String, File> tmpDir = new HashMap<String, File>();
File file = new File(Configuration.getTmp_dir() + "/" + uuid + "/" + name);
tmpDir.put(Configuration.getTmp_dir() + "/" + uuid, file);
Application.debug("file : " + file.getAbsolutePath() + " uploaded", userId);
return tmpDir;
}
}
public static InputStream getInputStreamFromURL(String url) {
URL u = null;
try {
u = new URL(url);
} catch (MalformedURLException e) {
Application.error(e);
}
URLConnection connection = null;
try {
connection = u.openConnection();
} catch (IOException e) {
Application.error(e);
}
InputStream input = null;
try {
input = connection.getInputStream();
} catch (IOException e) {
Application.error(e);
}
return input;
}
public static Map<String, File> uploadFileFromUploadField(FileUpload fileUpload, int userId) {
Application.debug("uploadFileFromUploadField", userId);
Map<String, File> tmpDir = new HashMap<String, File>();
String fileName = fileUpload.getClientFileName();
UUID uuid = UUID.randomUUID();
File dir = new File(Configuration.getTmp_dir() + "/" + uuid);
if (!dir.mkdir()) {
Application.error("cannot create directory uploadFileFromUploadField :" + uuid);
return null;
} else {
String name = fileName;
File tmpFile = new File(Configuration.getTmp_dir() + "/" + uuid + "/" + name);
try {
fileUpload.writeTo(tmpFile);
} catch (IOException e) {
Application.error(e);
return null;
}
tmpDir.put(Configuration.getTmp_dir() + "/" + uuid, tmpFile);
return tmpDir;
}
}
public static boolean deleteDirectory(File directory) {
Application.debug("deleting : " + directory.getAbsolutePath());
if (directory.exists()) {
File[] files = directory.listFiles();
if (null != files) {
for (int i = 0; i < files.length; i++) {
if (files[i].isDirectory()) {
deleteDirectory(files[i]);
} else {
files[i].delete();
}
}
}
}
return (directory.delete());
}