1 files changed, 83 insertions, 0 deletions
diff --git a/src/librbd/migration/HttpStream.cc b/src/librbd/migration/HttpStream.cc
new file mode 100644
index 000000000..fa3cc0032
--- /dev/null
+++ b/src/librbd/migration/HttpStream.cc
@@ -0,0 +1,83 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "librbd/migration/HttpStream.h"
+#include "common/dout.h"
+#include "common/errno.h"
+#include "librbd/AsioEngine.h"
+#include "librbd/ImageCtx.h"
+#include "librbd/asio/Utils.h"
+#include "librbd/migration/HttpClient.h"
+#include <boost/beast/http.hpp>
+
+namespace librbd {
+namespace migration {
+
+namespace {
+
+const std::string URL_KEY {"url"};
+
+} // anonymous namespace
+
+#define dout_subsys ceph_subsys_rbd
+#undef dout_prefix
+#define dout_prefix *_dout << "librbd::migration::HttpStream: " << this \
+                           << " " << __func__ << ": "
+
+template <typename I>
+HttpStream<I>::HttpStream(I* image_ctx, const json_spirit::mObject& json_object)
+  : m_image_ctx(image_ctx), m_cct(image_ctx->cct),
+    m_asio_engine(image_ctx->asio_engine), m_json_object(json_object) {
+}
+
+template <typename I>
+HttpStream<I>::~HttpStream() {
+}
+
+template <typename I>
+void HttpStream<I>::open(Context* on_finish) {
+  auto& url_value = m_json_object[URL_KEY];
+  if (url_value.type() != json_spirit::str_type) {
+    lderr(m_cct) << "failed to locate '" << URL_KEY << "' key" << dendl;
+    on_finish->complete(-EINVAL);
+    return;
+  }
+
+  m_url = url_value.get_str();
+  ldout(m_cct, 10) << "url=" << m_url << dendl;
+
+  m_http_client.reset(HttpClient<I>::create(m_image_ctx, m_url));
+  m_http_client->open(on_finish);
+}
+
+template <typename I>
+void HttpStream<I>::close(Context* on_finish) {
+  ldout(m_cct, 10) << dendl;
+
+  if (!m_http_client) {
+    on_finish->complete(0);
+    return;
+  }
+
+  m_http_client->close(on_finish);
+}
+
+template <typename I>
+void HttpStream<I>::get_size(uint64_t* size, Context* on_finish) {
+  ldout(m_cct, 10) << dendl;
+
+  m_http_client->get_size(size, on_finish);
+}
+
+template <typename I>
+void HttpStream<I>::read(io::Extents&& byte_extents, bufferlist* data,
+                         Context* on_finish) {
+  ldout(m_cct, 20) << "byte_extents=" << byte_extents << dendl;
+
+  m_http_client->read(std::move(byte_extents), data, on_finish);
+}
+
+} // namespace migration
+} // namespace librbd
+
+template class librbd::migration::HttpStream<librbd::ImageCtx>;