I want to download all the files from FTP server using JSCH.
Below is the code snippet,
List<File> fileList = null;
Vector<ChannelSftp.LsEntry> list = sftpChannel.ls(remoteFolder);
for (ChannelSftp.LsEntry file : list) {
if( getLog().isDebugEnabled() ){
getLog().debug("Retrieved Files from the folder is"+file);
}
if (!(new File(file.getFilename())).isFile()) {
continue;
}
fileList.add(new File(remoteFolder,file.getFilename())) ;
return fileList;
The method will return List, for another method to download the files from the remote server using sftpChannel.get(src,dest) ;
Please let me know if the code is ok.
I don't have an environment to test, so can't confirm it.
But somewhat similar code i wrote for FTPClient and it works.
Appreciate your help.
You can use SftpATTRS to get the file information. You can declare a wrapper class to store file information. An example shown below.
private class SFTPFile
{
private SftpATTRS sftpAttributes;
public SFTPFile(LsEntry lsEntry)
{
this.sftpAttributes = lsEntry.getAttrs();
}
public boolean isFile()
{
return (!sftpAttributes.isDir() && !sftpAttributes.isLink());
}
}
Now you can use this class to test if the LsEntry is a file
private List<SFTPFile> getFiles(String path)
{
List<SFTPFile> files = null;
try
{
List<?> lsEntries = sftpChannel.ls(path);
if (lsEntries != null)
{
files = new ArrayList<SFTPFile>();
for (int i = 0; i < lsEntries.size(); i++)
{
Object next = lsEntries.get(i);
if (!(next instanceof LsEntry))
{
// throw exception
}
SFTPFile sftpFile = new SFTPFile((LsEntry) next);
if (sftpFile.isFile())
{
files.add(sftpFile);
}
}
}
}
catch (SftpException sftpException)
{
//
}
return files;
}
Now you can use sftpChannel.get(src,dest) ; to download files.
Related
I have two ColdFusion sites in different servers.
I need to send a structure of an Agent (person) to be inserted in the other database server.
in the source server I wrote this code:
public Struct function addAgentToRemote(struct oAgent) {
local.stResult = {};
try {
myHttp = new http();
myHttp.setMethod("POST");
myHttp.setCharset("utf-8");
myHttp.setUrl(application.APIURL & "_com/API/agentAPI.cfc?method=addAgent");
myHttp.addParam(name="api_token", type="url", value=application.APIToken);
myHttp.addParam(name="agent", type="url", value=serializeJSON(arguments.oAgent));
local.stResult.data = myHttp.send().getPrefix();
} catch (Any excpt) {
local.stResult.success = false;
local.stResult.error = excpt;
}
return local.stResult;
}
In the destination server I wrote this code:
Remote String function addAgent(Required String api_token, Required String agent) {
local.stResult = newResult();
if (arguments.api_token NEQ application.APIToken) {
local.stResult.success = false;
local.stResult.error = "Wrong API Token...";
} else {
try {
agentDAO = new cfc.API.daos.agentDAO().init();
local.stResult = agentDAO.insertNewAgent(deserializeJSON(arguments.agent));
} catch (Any excpt) {
local.stResult.success = false;
local.stResult.error = excpt;
}
}
return serializeJSON(local.stResult);
}
I'm getting 500 error.
What is wrong ? My source or destination codes ?
Thanks.
I have found this link:
http://giddyrobot.com/preserving-important-comments-in-mvc-4-bundles/
It shows how to do this same thing for JavaScript and I have used it to make an attempt for StyleBundles, but I'm unsure if it's doing things correctly on the backend.
Is the source code available? If not does anyone know if this seems right? All I want to keep is comments that start with /*! so that licenses for open source projects like normalize get included properly in production.
Here is what I have so far:
public static void RegisterBundles(BundleCollection bundles)
{
// Allows us to keep /*! comments for licensing purposes
var cssBundleSettings = new CssSettings
{
CommentMode = CssComment.Important
};
}
public class ConfigurableStyleBundle : Bundle
{
public ConfigurableStyleBundle(string virtualPath, CssSettings cssSettings) :
this(virtualPath, cssSettings, null) { }
public ConfigurableStyleBundle(string virtualPath, CssSettings cssSettings, string cdnPath) :
base(virtualPath, cdnPath, new[] { new ConfigurableCSSTransform(cssSettings) })
{
// commented out from js concatenation token not sure if this one should have one
//base.ConcatenationToken = ";";
}
}
[ExcludeFromCodeCoverage]
public class ConfigurableCSSTransform : IBundleTransform
{
private readonly CssSettings _cssSettings;
public ConfigurableCSSTransform(CssSettings cssSettings)
{
_cssSettings = cssSettings;
}
public void Process(BundleContext context, BundleResponse response)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if (response == null)
{
throw new ArgumentNullException("response");
}
if (!context.EnableInstrumentation)
{
var minifier = new Minifier();
var content = minifier.MinifyStyleSheet(response.Content, _cssSettings);
if (minifier.ErrorList.Count > 0)
{
GenerateErrorResponse(response, minifier.ErrorList);
}
else
{
response.Content = content;
}
}
response.ContentType = "text/css";
}
internal static void GenerateErrorResponse(BundleResponse bundle, IEnumerable<object> errors)
{
var content = new StringBuilder();
content.Append("/* ");
content.Append("CSS MinifyError").Append("\r\n");
foreach (object current in errors)
{
content.Append(current.ToString()).Append("\r\n");
}
content.Append(" */\r\n");
content.Append(bundle.Content);
bundle.Content = content.ToString();
}
}
All of this is wrapped in public class BundleConfig and gets called from Global.asax.
I'm just wondering if CssComment.Important could have negative effects and remove too much and if this seems to be doing what I want it to? When I have tested it everything seems to look correct styling wise, but it doesn't hurt to get some eyes seeing as this is probably useful for a lot of other ASP.NET devs who use open source libraries.
I don't think you've done anything incorrectly. Though I would approach it using the IBundleBuilder interface, as this will also keep regular comments out of production from prying eyes who switch user agent, like specified in How to prevent User-Agent: Eureka/1 to return source code. I show some steps on how to test against this in this related blog post.
public class ConfigurableStyleBuilder : IBundleBuilder
{
public virtual string BuildBundleContent(Bundle bundle, BundleContext context, IEnumerable<BundleFile> files)
{
var content = new StringBuilder();
foreach (var file in files)
{
FileInfo f = new FileInfo(HttpContext.Current.Server.MapPath(file.VirtualFile.VirtualPath));
CssSettings settings = new CssSettings();
settings.CommentMode = Microsoft.Ajax.Utilities.CssComment.Important;
var minifier = new Microsoft.Ajax.Utilities.Minifier();
string readFile = Read(f);
string res = minifier.MinifyStyleSheet(readFile, settings);
if (minifier.ErrorList.Count > 0)
{
res = PrependErrors(readFile, minifier.ErrorList);
content.Insert(0, res);
}
else
{
content.Append(res);
}
}
return content.ToString();
}
private string PrependErrors(string file, ICollection<ContextError> errors )
{
var content = new StringBuilder();
content.Append("/* ");
content.Append("CSS MinifyError").Append("\r\n");
foreach (object current in errors)
{
content.Append(current.ToString()).Append("\r\n");
}
content.Append("Minify Error */\r\n");
content.Append(file);
return content.ToString();
}
private string Read(FileInfo file)
{
using (var r = file.OpenText())
{
return r.ReadToEnd();
}
}
}
public class BundleConfig
{
public static void RegisterBundles(BundleCollection bundles)
{
var cssBundle = new ConfigurableStyleBundle("~/Content/css");
cssBundle.Include("~/Content/stylesheet1.css");
cssBundle.Include("~/Content/stylesheet2.css");
bundles.Add(cssBundle);
//etc
}
}
I made a NuGet package for this (including a version for scripts) - https://www.nuget.org/packages/LicensedBundler/
I have a Upload component in which I´m supposed to import a xml file in order to parse it.
I´m trying to use the File.createTempFile method to create the file phisically,but something weird is going on.
For example,if I take the file named "test.xml" and use the createTempFile method to create it on the disk,the name of the generate file becomes something like 'test.xml13234xml'.How can I create the file the correct way?
This is expected when using i.e. createTempFile method as it implicitly creates a file with random prefix:
// a part of createTempFile method
private static final SecureRandom random = new SecureRandom();
static File generateFile(String prefix, String suffix, File dir) {
long n = random.nextLong();
if (n == Long.MIN_VALUE) {
n = 0; // corner case
} else {
n = Math.abs(n);
}
return new File(dir, prefix + Long.toString(n) + suffix);
}
which should give something like 'test.xml13234xml'.
If you want to create a file with the correct name and keep it for later use you can rename/move it within uploadSucceeded method.
public class ExampleUpload implements Upload.Receiver, Upload.SucceededListener {
private Upload xmlUpload;
private File tempFile;
public ExampleUpload() {
this.xmlUpload = new Upload("Upload:", this);
this.xmlUpload.addSucceededListener(this);
}
#Override
public OutputStream receiveUpload(String filename, String mimeType) {
try {
tempFile = File.createTempFile(filename, "xml");
tempFile.deleteOnExit();
return new FileOutputStream(tempFile);
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
#Override
public void uploadSucceeded(SucceededEvent event) {
try {
File destinationFile = new File("c:\\" + event.getFilename());
FileUtils.moveFile(tempFile, destinationFile));
// TODO read and parse destinationFile
} catch (IOException e) {
e.printStackTrace();
}
}
}
I've been using tomahawk (1.1.11) for a project. I want to display a tree with all the files and subdirs (and files in those subdirs). I have a code, but it's not listing all of the files and dirs, and don't know where's the mistake.
public TreeNode getTreeData() {
path = loadConfiguredPath();
String dependencia = userVerifier.getDependencia();
if (dependencia.equals("TEST")) {
path = path + "dataFiles";
} else {
path = path + "dataFiles\\" + dependencia;
}
dirRoot = new File(path);
treeRoot = new TreeNodeBase("folder", "BASEDIR", false);
createTree(dirRoot, treeRoot);
return treeRoot;
}
private void createTree(File fileRoot, TreeNode treeRoot) {
File[] files = fileRoot.listFiles();
TreeNodeBase tnb;
for (File f : files) {
if (f.isDirectory()) {
tnb = new TreeNodeBase("folder", f.getName(), false);
treeRoot.getChildren().add(tnb);
createTree(f, tnb);
}
if (f.isFile()) {
tnb = new TreeNodeBase("file", f.getName(), false);
treeRoot.getChildren().add(tnb);
//return;
}
}
return;
}
UPDATE: code corrected as mention in comment.
Sorry, finally found my error !
I was returning when just one file was found. and I just change that return at the end of the for loop.
Thanks anyway
In my AIR app, I am trying to implement a file downloader using URLStream.
public class FileDownloader {
// Class to download files from the internet
// Function called every time data arrives
// called with an argument of how much has been downloaded
public var onProgress :Function = function(loaded:Number, total:Number):void{};
public var onComplete :Function = function():void{};
public var remotePath :String = "";
public var localFile :File = null;
public var running:Boolean = false;
public var stream :URLStream;
private var fileAccess :FileStream;
public function FileDownloader( remotePath :String = "" , localFile :File = null ) {
this.remotePath = remotePath;
this.localFile = localFile;
}
public function load() :void
{
try
{
stream = null;
if( !stream || !stream.connected )
{
stream = new URLStream();
fileAccess = new FileStream();
var requester :URLRequest = new URLRequest( remotePath );
var currentPosition :uint = 0;
var downloadCompleteFlag :Boolean = false;
// Function to call oncomplete, once the download finishes and
// all data has been written to disc
fileAccess.addEventListener( "outputProgress", function ( result ):void {
if( result.bytesPending == 0 && downloadCompleteFlag ) {
stream.close();
fileAccess.close();
running = false;
onComplete();
}
});
fileAccess.openAsync( localFile, FileMode.WRITE );
fileAccess.addEventListener(IOErrorEvent.IO_ERROR, function(e:IOErrorEvent)
{
trace('remotePath: '+remotePath);
trace('io error while wrintg ....'+e.toString());
});
stream.addEventListener(IOErrorEvent.IO_ERROR, function(e:IOErrorEvent)
{
trace('remotePath: '+remotePath);
trace('There was an IO error with the stream: '+e.text);
});
stream.addEventListener( "progress" , function (e:ProgressEvent) :void {
var bytes :ByteArray = new ByteArray();
var thisStart :uint = currentPosition;
currentPosition += stream.bytesAvailable;
// ^^ Makes sure that asyncronicity does not break anything
try
{
//trace('reading from '+remotePath+' ...');
stream.readBytes( bytes, thisStart );
fileAccess.writeBytes( bytes, thisStart );
}
catch(err:Error)
{
trace('remotePath: '+remotePath);
trace('error while writing bytes from...'+err.name+':'+err.message);
if(stream.connected)
stream.close();
abort();
onComplete();
return;
}
onProgress( e.bytesLoaded, e.bytesTotal );
});
stream.addEventListener( "complete", function () :void {
downloadCompleteFlag = true;
});
stream.load( requester );
} else {
// Do something unspeakable
}
running = true;
}
catch(err:Error)
{
trace('error while downloading the file: '+err);
}
}
public function abort():void {
try {
stream.close();
trace('stream closed');
running = false;
}
catch(err:Error) {
trace('error while aborting download');
trace(err);
}
}
}
I simply create an object of the above class and passing the url and the file and call the load function. For some files I get the following error.
remotePath: http://mydomain.com/238/6m_608-450.jpg
error while writing bytes from...Error:Error #2029: This URLStream object does not have a stream opened.
Which means the error is from the file stream(fileAccess) that I am using. I am unable to figure out why this could be happening. If I try to open the url http://mydomain.com/238/6m_608-450.jpg in the browser, it opens properly. This happens randomly for some files. What could be the problem?
I have tried in my office and it works for me (for differents files and filesize).
So, can you describe the files (or types files) which don't work for you (post an url if you can) ?
I would say that when you use the method readBytes your stream (so the URLStream) is ever close.
More, I allows me some advice :
1/ Use flash's constants instead of simple string
2/ Don't forget to remove your listeners once the operation completed
3/ Your method FileDownloader is quite confusing. Use lowercase if it's a function or puts a capital letter with class's name if you use it as a constructor. For me, this function must be a constructor.