1 files changed, 81 insertions, 0 deletions
diff --git a/java/jvpp-stats/io/fd/jvpp/stats/future/FutureJVppStatsFacadeCallback.java b/java/jvpp-stats/io/fd/jvpp/stats/future/FutureJVppStatsFacadeCallback.java
new file mode 100644
index 0000000..a215b89
--- /dev/null
+++ b/java/jvpp-stats/io/fd/jvpp/stats/future/FutureJVppStatsFacadeCallback.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2019 Cisco and/or its affiliates.
+ *
+ * Licensed 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.
+ */
+
+package io.fd.jvpp.stats.future;
+
+import io.fd.jvpp.stats.dto.InterfaceStatisticsDetailsReplyDump;
+
+/**
+ * <p>Async facade callback setting values to future objects
+ */
+public final class FutureJVppStatsFacadeCallback implements io.fd.jvpp.stats.callback.JVppStatsGlobalCallback {
+
+    private static final java.util.logging.Logger LOG = java.util.logging.Logger.getLogger(
+            FutureJVppStatsFacadeCallback.class.getName());
+    private final java.util.Map<Integer, java.util.concurrent.CompletableFuture<? extends io.fd.jvpp.dto.JVppReply<?>>>
+            requests;
+
+    public FutureJVppStatsFacadeCallback(
+            final java.util.Map<Integer, java.util.concurrent.CompletableFuture<? extends io.fd.jvpp.dto.JVppReply<?>>> requestMap) {
+        this.requests = requestMap;
+    }
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public void onError(io.fd.jvpp.VppCallbackException reply) {
+        final java.util.concurrent.CompletableFuture<io.fd.jvpp.dto.JVppReply<?>> completableFuture;
+
+        synchronized (requests) {
+            completableFuture = (java.util.concurrent.CompletableFuture<io.fd.jvpp.dto.JVppReply<?>>) requests
+                    .get(reply.getCtxId());
+        }
+
+        if (completableFuture != null) {
+            completableFuture.completeExceptionally(reply);
+
+            synchronized (requests) {
+                requests.remove(reply.getCtxId());
+            }
+        }
+    }
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public void onInterfaceStatisticsDetails(final io.fd.jvpp.stats.dto.InterfaceStatisticsDetails reply) {
+        io.fd.jvpp.stats.future.AbstractFutureJVppInvoker.CompletableDumpFuture<InterfaceStatisticsDetailsReplyDump>
+                completableFuture;
+        final int replyId = reply.context;
+        if (LOG.isLoggable(java.util.logging.Level.FINE)) {
+            LOG.fine(String.format("Received InterfaceStatisticsDetails event message: %s", reply));
+        }
+        synchronized (requests) {
+            completableFuture =
+                    (io.fd.jvpp.stats.future.AbstractFutureJVppInvoker.CompletableDumpFuture<InterfaceStatisticsDetailsReplyDump>) requests
+                            .get(replyId);
+
+            if (completableFuture == null) {
+                // reply received before writer created future,
+                // create new future, and put into map to notify sender that reply is already received,
+                // following details replies will add information to this future
+                completableFuture =
+                        new io.fd.jvpp.stats.future.AbstractFutureJVppInvoker.CompletableDumpFuture<>(replyId,
+                                new InterfaceStatisticsDetailsReplyDump());
+                requests.put(replyId, completableFuture);
+            }
+            completableFuture.getReplyDump().interfaceStatisticsDetails = reply;
+        }
+    }
+}