Document HttpServer.

sdk/lib/io/http.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of dart.io;
 
 /**
  * HTTP status codes.
  */
 abstract class HttpStatus {
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   static const int BAD_GATEWAY = 502;
   static const int SERVICE_UNAVAILABLE = 503;
   static const int GATEWAY_TIMEOUT = 504;
   static const int HTTP_VERSION_NOT_SUPPORTED = 505;
   // Client generated status code.
   static const int NETWORK_CONNECT_TIMEOUT_ERROR = 599;
 }
 
 
 /**
- * HTTP server.
+ * The [HttpServer] class implements the server side of the HTTP
+ * protocol. The [HttpServer] is a [Stream] of [HttpRequest]s. Each
+ * [HttpRequest] has an associated [HttpResponse] object as its
+ * [HttpRequest.response] member, and the server responds to a request by
+ * writing to that [HttpResponse] object.
+ *
+ * Incomplete requests where all or parts of the header is missing, are
+ * ignored and no exceptions or [HttpRequest] objects are generated for them.
+ * Likewise, when writing to a [HttpResponse], any [Socket] exceptions are
+ * ignored and any future writes are ignored.
+ *
+ * The [HttpRequest] exposes the request headers, and provides the request body,
+ * if it exists, as a stream of data. If the body is unread, it'll be drained
+ * when the [HttpResponse] is being written to or closed.
+ *
+ * The following example shows how to bind a [HttpServer] to a IPv6
+ * [InternetAddress] on port 80, and listening to requests.
+ *
+ *   HttpServer.bind(InternetAddress.ANY_IP_V6, 80).then((server) {
+ *     server.listen((HttpRequest request) {
+ *       // Handle requests.
+ *     });
+ *   });
  */
 abstract class HttpServer implements Stream<HttpRequest> {
-  // TODO(ajohnsen): Document with example, once the stream API is final.
-  // TODO(ajohnsen): Add HttpServer.secure.
   /**
    * Starts listening for HTTP requests on the specified [address] and
    * [port].
    *
    * The [address] can either be a [String] or an
    * [InternetAddress]. If [address] is a [String], [bind] will
    * perform a [InternetAddress.lookup] and use the first value in the
    * list. To listen on the loopback adapter, which will allow only
    * incoming connections from the local host, use the value
    * [InternetAddress.LOOPBACK_IP_V4] or
@@ skipping 1315 matching lines @@
 
 class RedirectException implements HttpException {
   final String message;
   final List<RedirectInfo> redirects;
 
   const RedirectException(String this.message,
                           List<RedirectInfo> this.redirects);
 
   String toString() => "RedirectException: $message";
 }