Initial

GZipResponseString.scala

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+package net.gerdriesselmann.unfiltered
+
+import unfiltered.request.{HttpRequest, AcceptEncoding}
+import unfiltered.response._
+
+/**
+ * GZip a response, if possible
+ */
+case class GZipResponseString[T](request: HttpRequest[T], content: String) extends Responder[Any] {
+	/**
+	 * Respond
+	 */
+	override def respond(res: HttpResponse[Any]) {
+		request match {
+			case AcceptEncoding(values) => if (values.exists { s => s.equalsIgnoreCase("gzip") }) {
+				streamGZip(res)
+			} else {
+				streamRes(res)
+			}
+			case _ => streamRes(res)
+		}
+	}
+
+	/**
+	 * Turn string into bytes
+	 */
+	def contentToBytes = content.getBytes("UTF-8")
+
+	/**
+	 * Stream using the default output stream
+	 */
+	def streamRes(res: HttpResponse[Any]) = stream(res.getOutputStream, content)
+
+	/**
+	 * Stream using gzip encoding
+	 */
+	def streamGZip(res: HttpResponse[Any]) = {
+		res.addHeader("Content-Encoding", "gzip")
+		val gos = new java.util.zip.GZIPOutputStream(res.getOutputStream)
+		stream(gos, content)
+	}
+
+	/**
+	 * Write into given stream
+	 */
+	def stream(os: java.io.OutputStream, content: String) {
+		try { os.write(contentToBytes) }
+    	finally { os.close() }
+	}
+}

LICENSE

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+Copyright (c) 2011 Gerd Riesselmann
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+

README

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+This is a GZip reponse writer for Unfiltered (https://github.com/n8han/Unfiltered).
+
+It can be used as a drop in replacement for ResponseString, like this:
+
+object Echo extends unfiltered.filter.Plan {
+  def intent = {
+      case req @ Path(Seg(p :: Nil)) => GZipResponseString(req, p)
+  }
+}
+
+The GZipResponseString will check if the client supports gzip encoding and
+will send the required headers.
+
+