1 files changed, 44 insertions, 0 deletions
diff --git a/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/autoscale/Resource.java b/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/autoscale/Resource.java
new file mode 100644
index 00000000000..842f2b1f1b4
--- /dev/null
+++ b/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/autoscale/Resource.java
@@ -0,0 +1,44 @@
+// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.vespa.hosted.provision.autoscale;
+
+import com.yahoo.config.provision.NodeResources;
+
+/**
+ * A resource subject to autoscaling
+ *
+ * @author bratseth
+ */
+public enum Resource {
+
+    cpu {
+        String metric() { return "cpu"; } // TODO: Full metric name
+        double idealAverageLoad() { return 0.2; }
+        double valueFrom(NodeResources resources) { return resources.vcpu(); }
+    },
+
+    memory {
+        String metric() { return "memory"; } // TODO: Full metric name
+        double idealAverageLoad() { return 0.7; }
+        double valueFrom(NodeResources resources) { return resources.memoryGb(); }
+    },
+
+    disk {
+        String metric() { return "disk"; } // TODO: Full metric name
+        double idealAverageLoad() { return 0.7; }
+        double valueFrom(NodeResources resources) { return resources.diskGb(); }
+    };
+
+    abstract String metric();
+
+    /** The load we should have of this resource on average, when one node in the cluster is down */
+    abstract double idealAverageLoad();
+
+    abstract double valueFrom(NodeResources resources);
+
+    public static Resource fromMetric(String metricName) {
+        for (Resource resource : values())
+            if (resource.metric().equals(metricName)) return resource;
+        throw new IllegalArgumentException("Metric '" + metricName + "' does not map to a resource");
+    }
+
+}