1 files changed, 30 insertions, 0 deletions
diff --git a/node-admin/src/main/java/com/yahoo/vespa/hosted/node/admin/task/util/template/Form.java b/node-admin/src/main/java/com/yahoo/vespa/hosted/node/admin/task/util/template/Form.java
new file mode 100644
index 00000000000..42e13d63c19
--- /dev/null
+++ b/node-admin/src/main/java/com/yahoo/vespa/hosted/node/admin/task/util/template/Form.java
@@ -0,0 +1,30 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.vespa.hosted.node.admin.task.util.template;
+
+/**
+ * Public methods common to both Template and ListElement.
+ *
+ * @author hakonhall
+ */
+public interface Form {
+    /** Set the value of a variable, e.g. %{=color}. */
+    Template set(String name, String value);
+
+    /** Set the value of a variable and/or if-condition. */
+    default Template set(String name, boolean value) { return set(name, Boolean.toString(value)); }
+
+    default Template set(String name, int value) { return set(name, Integer.toString(value)); }
+    default Template set(String name, long value) { return set(name, Long.toString(value)); }
+
+    default Template set(String name, String format, String first, String... rest) {
+        var args = new Object[1 + rest.length];
+        args[0] = first;
+        System.arraycopy(rest, 0, args, 1, rest.length);
+        var value = String.format(format, args);
+
+        return set(name, value);
+    }
+
+    /** Add an instance of a list section after any previously added (for the given name)  */
+    ListElement add(String name);
+}