1 files changed, 97 insertions, 0 deletions
diff --git a/src/arrow/r/R/message.R b/src/arrow/r/R/message.R
new file mode 100644
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+++ b/src/arrow/r/R/message.R
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+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+#' @include arrow-package.R
+
+#' @title class arrow::Message
+#'
+#' @usage NULL
+#' @format NULL
+#' @docType class
+#'
+#' @section Methods:
+#'
+#' TODO
+#'
+#' @rdname Message
+#' @name Message
+Message <- R6Class("Message",
+  inherit = ArrowObject,
+  public = list(
+    Equals = function(other, ...) {
+      inherits(other, "Message") && ipc___Message__Equals(self, other)
+    },
+    body_length = function() ipc___Message__body_length(self),
+    Verify = function() ipc___Message__Verify(self)
+  ),
+  active = list(
+    type = function() ipc___Message__type(self),
+    metadata = function() ipc___Message__metadata(self),
+    body = function() ipc___Message__body(self)
+  )
+)
+
+#' @title class arrow::MessageReader
+#'
+#' @usage NULL
+#' @format NULL
+#' @docType class
+#'
+#' @section Methods:
+#'
+#' TODO
+#'
+#' @rdname MessageReader
+#' @name MessageReader
+#' @export
+MessageReader <- R6Class("MessageReader",
+  inherit = ArrowObject,
+  public = list(
+    ReadNextMessage = function() ipc___MessageReader__ReadNextMessage(self)
+  )
+)
+
+MessageReader$create <- function(stream) {
+  if (!inherits(stream, "InputStream")) {
+    stream <- BufferReader$create(stream)
+  }
+  ipc___MessageReader__Open(stream)
+}
+
+#' Read a Message from a stream
+#'
+#' @param stream an InputStream
+#'
+#' @export
+read_message <- function(stream) {
+  UseMethod("read_message")
+}
+
+#' @export
+read_message.default <- function(stream) {
+  read_message(BufferReader$create(stream))
+}
+
+#' @export
+read_message.InputStream <- function(stream) {
+  ipc___ReadMessage(stream)
+}
+
+#' @export
+read_message.MessageReader <- function(stream) {
+  stream$ReadNextMessage()
+}