public static Stream GenerateStreamFromString(string s) { var stream = new MemoryStream(); var writer = new StreamWriter(stream); writer.Write(s); writer.Flush(); stream.Position = 0; return stream; } Don’t forget to use Using: using (var stream = GenerateStreamFromString(“a,b \n c,d”)) { // … Do stuff to stream } About the StreamWriter not being disposed. StreamWriter is just a wrapper … Read more
You can improve read speed by using a BufferedStream, like this: using (FileStream fs = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) using (BufferedStream bs = new BufferedStream(fs)) using (StreamReader sr = new StreamReader(bs)) { string line; while ((line = sr.ReadLine()) != null) { } } March 2013 UPDATE I recently wrote code for reading and processing (searching … Read more
from cStringIO import StringIO # Python3 use: from io import StringIO import sys old_stdout = sys.stdout sys.stdout = mystdout = StringIO() # blah blah lots of code … sys.stdout = old_stdout # examine mystdout.getvalue()
Since PHP 5.1.0, file_put_contents() supports writing piece-by-piece by passing a stream-handle as the $data parameter: file_put_contents(“Tmpfile.zip”, fopen(“http://someurl/file.zip”, ‘r’)); From the manual: If data [that is the second argument] is a stream resource, the remaining buffer of that stream will be copied to the specified file. This is similar with using stream_copy_to_stream(). (Thanks Hakre.)
As highlighted by Tilendor in Jon Skeet’s answer, streams have a CopyTo method since .NET 4. var fileStream = File.Create(“C:\\Path\\To\\File”); myOtherObject.InputStream.Seek(0, SeekOrigin.Begin); myOtherObject.InputStream.CopyTo(fileStream); fileStream.Close(); Or with the using syntax: using (var fileStream = File.Create(“C:\\Path\\To\\File”)) { myOtherObject.InputStream.Seek(0, SeekOrigin.Begin); myOtherObject.InputStream.CopyTo(fileStream); }
You can stream data in a response, but you can’t dynamically update a template the way you describe. The template is rendered once on the server side, then sent to the client. One solution is to use JavaScript to read the streamed response and output the data on the client side. Use XMLHttpRequest to make … Read more
You cannot determine the encoding of a arbitrary byte stream. This is the nature of encodings. A encoding means a mapping between a byte value and its representation. So every encoding “could” be the right. The getEncoding() method will return the encoding which was set up (read the JavaDoc) for the stream. It will not … Read more
As WMR mentioned, org.apache.commons.io.IOUtils from Apache has a method called copy(InputStream,OutputStream) which does exactly what you’re looking for. So, you have: InputStream in; OutputStream out; IOUtils.copy(in,out); in.close(); out.close(); …in your code. Is there a reason you’re avoiding IOUtils?
Firstly, I would recommend replacing the line Process process = Runtime.getRuntime ().exec (“/bin/bash”); with the lines ProcessBuilder builder = new ProcessBuilder(“/bin/bash”); builder.redirectErrorStream(true); Process process = builder.start(); ProcessBuilder is new in Java 5 and makes running external processes easier. In my opinion, its most significant improvement over Runtime.getRuntime().exec() is that it allows you to redirect the … Read more
From .NET 4.5 on, there is the Stream.CopyToAsync method input.CopyToAsync(output); This will return a Task that can be continued on when completed, like so: await input.CopyToAsync(output) // Code from here on will be run in a continuation. Note that depending on where the call to CopyToAsync is made, the code that follows may or may … Read more