How can I modify the test script above to avoid the error message when the script is run as shown (under Unix/bash)? You will need to prevent the script from writing anything to standard output. That means removing any print statements and any use of sys.stdout.write, as well as any code that calls those. The … Read more
No, it is not OK to use a blocking API call in a node server as you describe. Your site’s responsiveness to many concurrent connections will take a huge hit. It’s also just blatantly violating the #1 principle of node. The key to node working is that while it is waiting on IO, it is … Read more
Try this: in.nextLine(); This advances the Scanner to the next line.
File I/O operations are generally well optimized in modern operating systems. You shouldn’t try to assemble the entire string for the file in memory … just write it out piece by piece. The FileStream will take care of buffering and other performance considerations. You can make this change easily by moving: using (StreamWriter outfile = … Read more
Java 9 native implementation: byte[] data = this.getClass().getClassLoader() .getResourceAsStream(“/assets/myAsset.bin”).readAllBytes();
For those who prefer code, I am using following to do remote logging from web apps… public static class LoggingExtensions { static ReaderWriterLock locker = new ReaderWriterLock(); public static void WriteDebug(this string text) { try { locker.AcquireWriterLock(int.MaxValue); //You might wanna change timeout value System.IO.File.AppendAllLines(Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase).Replace(“file:\\”, “”), “debug.txt”), new[] { text }); } finally { locker.ReleaseWriterLock(); } … Read more
Try reading into a buffer and then using the buffer to back two new readers, one for you to use, and one for subsequent consumers to use. For example, imagine that we want to modify the following code: doStuff(r.Body) // r is an http.Request We could do: buf, _ := ioutil.ReadAll(r.Body) rdr1 := ioutil.NopCloser(bytes.NewBuffer(buf)) rdr2 … Read more
Yes, your conclusion is correct subclasses of Reader and Writer are for reading/writing text content. InputStream / OutputStream are for binary content. If you take a look at the documentation: Reader – Abstract class for reading character streams InputStream – Abstract class is the superclass of all classes representing an input stream of bytes.
The correct approach, in general, is your Case 1. This maintains a single responsibility for the class (whatever it does) without coupling it to a specific persistence mechanism (a disk). You’re looking at a specific case of a more generalized problem: Serialization. It’s good and OK for an object to have some means to indicate … Read more