1 files changed, 48 insertions, 0 deletions
diff --git a/clustercontroller-core/src/main/java/com/yahoo/vespa/clustercontroller/core/ClusterStateVersionSpecificRequest.java b/clustercontroller-core/src/main/java/com/yahoo/vespa/clustercontroller/core/ClusterStateVersionSpecificRequest.java
new file mode 100644
index 00000000000..fda6ec19752
--- /dev/null
+++ b/clustercontroller-core/src/main/java/com/yahoo/vespa/clustercontroller/core/ClusterStateVersionSpecificRequest.java
@@ -0,0 +1,48 @@
+// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.vespa.clustercontroller.core;
+
+public abstract class ClusterStateVersionSpecificRequest {
+
+    private final NodeInfo nodeInfo;
+    private final int clusterStateVersion;
+    private Reply reply;
+
+    public ClusterStateVersionSpecificRequest(NodeInfo nodeInfo, int clusterStateVersion) {
+        this.nodeInfo = nodeInfo;
+        this.clusterStateVersion = clusterStateVersion;
+    }
+
+    public NodeInfo getNodeInfo() { return nodeInfo; }
+
+    public int getClusterStateVersion() { return clusterStateVersion; }
+
+    public void setReply(Reply reply) { this.reply = reply; }
+
+    public Reply getReply() { return reply; }
+
+    public static class Reply {
+
+        final int returnCode;
+        final String returnMessage;
+
+        public Reply() {
+            this(0, null);
+        }
+
+        public Reply(int returnCode, String returnMessage) {
+            this.returnCode = returnCode;
+            this.returnMessage = returnMessage;
+        }
+
+        /** Returns whether this is an error response */
+        public boolean isError() { return returnCode != 0; }
+
+        /** Returns the return code, which is 0 if this request was successful */
+        public int getReturnCode() { return returnCode; }
+
+        /** Returns the message returned, or null if none */
+        public String getReturnMessage() { return returnMessage; }
+
+    }
+
+}