Add alternative to deprecated asWebSocketHttpRequestHandler

Author: rstoyanchev

spring-graphql/src/main/java/org/springframework/graphql/server/webmvc/GraphQlWebSocketHandler.java

@@ -128,17 +128,26 @@ public List<String> getSubProtocols() {
 		return SUB_PROTOCOL_LIST;
 	}
 
+	/**
+	 * Initialize a {@link WebSocketHttpRequestHandler} that wraps this instance
+	 * and also inserts a {@link HandshakeInterceptor} for context propagation.
+	 * @since 1.1.0
+	 */
+	public WebSocketHttpRequestHandler initWebSocketHttpRequestHandler(HandshakeHandler handshakeHandler) {
+		WebSocketHttpRequestHandler handler = new WebSocketHttpRequestHandler(this, handshakeHandler);
+		handler.setHandshakeInterceptors(Collections.singletonList(this.contextHandshakeInterceptor));
+		return handler;
+	}
+
 	/**
 	 * Return a {@link WebSocketHttpRequestHandler} that uses this instance as
 	 * its {@link WebGraphQlHandler} and adds a {@link HandshakeInterceptor} to
 	 * propagate context.
-	 * @deprecated as of 1.1.0 without a replacement, there should be no need for it
+	 * @deprecated as of 1.1.0 in favor of {@link #initWebSocketHttpRequestHandler(HandshakeHandler)}
 	 */
 	@Deprecated
 	public WebSocketHttpRequestHandler asWebSocketHttpRequestHandler(HandshakeHandler handshakeHandler) {
-		WebSocketHttpRequestHandler handler = new WebSocketHttpRequestHandler(this, handshakeHandler);
-		handler.setHandshakeInterceptors(Collections.singletonList(this.contextHandshakeInterceptor));
-		return handler;
+		return initWebSocketHttpRequestHandler(handshakeHandler);
 	}