Add support for rotations element

1 files changed, 57 insertions, 0 deletions

diff --git a/config-provisioning/src/main/java/com/yahoo/config/provision/RotationName.java b/config-provisioning/src/main/java/com/yahoo/config/provision/RotationName.java
new file mode 100644
index 00000000000..5d9ac3699b3
--- /dev/null
+++ b/config-provisioning/src/main/java/com/yahoo/config/provision/RotationName.java
@@ -0,0 +1,57 @@
+// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.config.provision;
+
+import java.util.Objects;
+
+/**
+ * Represents a rotation name for a container cluster. Typically created from the rotation element in services.xml.
+ *
+ * @author mpolden
+ */
+public class RotationName implements Comparable<RotationName> {
+
+    private final String name;
+
+    private RotationName(String name) {
+        this.name = requireNonBlank(name, "name must be non-empty");
+    }
+
+    public String value() {
+        return name;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        RotationName that = (RotationName) o;
+        return name.equals(that.name);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(name);
+    }
+
+    @Override
+    public int compareTo(RotationName o) {
+        return name.compareTo(o.name);
+    }
+
+    @Override
+    public String toString() {
+        return "rotation '" + name + "'";
+    }
+
+    public static RotationName from(String name) {
+        return new RotationName(name);
+    }
+
+    private static String requireNonBlank(String s, String message) {
+        if (s == null || s.isBlank()) {
+            throw new IllegalArgumentException(message);
+        }
+        return s;
+    }
+
+}