From 3efaccd81ff47a46400badcd51a8abf39c9262f8 Mon Sep 17 00:00:00 2001
From: Carl Mastrangelo <notcarl@google.com>
Date: Thu, 27 Jul 2017 12:17:27 -0700
Subject: [PATCH] netty: support `status()` on Headers

* netty: support `status()` on Headers

Recent Netty change https://github.com/netty/netty/commit/a91df58ca17d5b30c57c46dde5b1d60bb659b029
caused the `status()` method to be invoked, which AbstractHttp2Headers does not implement.
This change is necesary to upgrade to Netty 4.1.14
---
 .../main/java/io/grpc/netty/GrpcHttp2HeadersUtils.java |  5 +++++
 .../java/io/grpc/netty/GrpcHttp2OutboundHeaders.java   | 10 ++++++++++
 2 files changed, 15 insertions(+)

diff --git a/netty/src/main/java/io/grpc/netty/GrpcHttp2HeadersUtils.java b/netty/src/main/java/io/grpc/netty/GrpcHttp2HeadersUtils.java
index 4be5dbdb71..405f1e59fe 100644
--- a/netty/src/main/java/io/grpc/netty/GrpcHttp2HeadersUtils.java
+++ b/netty/src/main/java/io/grpc/netty/GrpcHttp2HeadersUtils.java
@@ -124,6 +124,11 @@ class GrpcHttp2HeadersUtils {
       return null;
     }
 
+    @Override
+    public CharSequence status() {
+      return get(Http2Headers.PseudoHeaderName.STATUS.value());
+    }
+
     @Override
     public List<CharSequence> getAll(CharSequence csName) {
       AsciiString name = requireAsciiString(csName);
diff --git a/netty/src/main/java/io/grpc/netty/GrpcHttp2OutboundHeaders.java b/netty/src/main/java/io/grpc/netty/GrpcHttp2OutboundHeaders.java
index 25c833d025..affa6fb1d8 100644
--- a/netty/src/main/java/io/grpc/netty/GrpcHttp2OutboundHeaders.java
+++ b/netty/src/main/java/io/grpc/netty/GrpcHttp2OutboundHeaders.java
@@ -66,6 +66,16 @@ final class GrpcHttp2OutboundHeaders extends AbstractHttp2Headers {
     this.preHeaders = preHeaders;
   }
 
+  @Override
+  @SuppressWarnings("ReferenceEquality") // STATUS.value() never changes.
+  public CharSequence status() {
+    // preHeaders is never null.  It has status as the first element or not at all.
+    if (preHeaders.length >= 2 && preHeaders[0] == Http2Headers.PseudoHeaderName.STATUS.value()) {
+      return preHeaders[1];
+    }
+    return null;
+  }
+
   @Override
   public Iterator<Entry<CharSequence, CharSequence>> iterator() {
     return new Itr();