All of these can be used. There are subtle differences between the three: gzencode() uses the GZIP file format, the same as the gzip command line tool. This file format has a header containing optional metadata, DEFLATE compressed data, and footer containing a CRC32 checksum and length check. gzcompress() uses the ZLIB format. It has … Read more
It appears [Content-Encoding] is not a valid request header. That is actually not quite true. As per RFC 2616, sec 14.11, Content-Encoding is an entity header which means it can be applied on the entities of both, http responses and requests. Through the powers of multipart MIME messages, even selected parts of a request (or … Read more
You need to turn that String into a gzipped byte[] or (temp) File first. Let’s assume that it’s not an extraordinary large String value so that a byte[] is safe enough for the available JVM memory: String foo = “value”; ByteArrayOutputStream baos = new ByteArrayOutputStream(); try (GZIPOutputStream gzos = new GZIPOutputStream(baos)) { gzos.write(foo.getBytes(“UTF-8”)); } byte[] … Read more
What about just getting a listing of the tarball and throw away the output, rather than decompressing the file? tar -tzf my_tar.tar.gz >/dev/null Edited as per comment. Thanks zrajm! Edit as per comment. Thanks Frozen Flame! This test in no way implies integrity of the data. Because it was designed as a tape archival utility … Read more
Here’s what i use (as of this monent in time): using System.IO.Compression; public class CompressAttribute : ActionFilterAttribute { public override void OnActionExecuting(ActionExecutingContext filterContext) { var encodingsAccepted = filterContext.HttpContext.Request.Headers[“Accept-Encoding”]; if (string.IsNullOrEmpty(encodingsAccepted)) return; encodingsAccepted = encodingsAccepted.ToLowerInvariant(); var response = filterContext.HttpContext.Response; if (encodingsAccepted.Contains(“deflate”)) { response.AppendHeader(“Content-encoding”, “deflate”); response.Filter = new DeflateStream(response.Filter, CompressionMode.Compress); } else if (encodingsAccepted.Contains(“gzip”)) { response.AppendHeader(“Content-encoding”, “gzip”); … Read more
From the Spark Scala Programming guide’s section on “Hadoop Datasets”: Spark can create distributed datasets from any file stored in the Hadoop distributed file system (HDFS) or other storage systems supported by Hadoop (including your local file system, Amazon S3, Hypertable, HBase, etc). Spark supports text files, SequenceFiles, and any other Hadoop InputFormat. Support for … Read more
Have you tried with ob_gzhandler? <?php ob_start(“ob_gzhandler”); ?> <html> <body> <p>This should be a compressed page.</p> </html> <body> As an alternative, with the Apache web server, you can add a DEFLATE output filter to your top-level server configuration, or to a .htaccess file: <IfModule mod_deflate.c> AddOutputFilterByType DEFLATE text/text text/html text/plain text/xml \ text/css application/x-javascript application/javascript … Read more