Actually add the PatternedStringWrapper

1 files changed, 19 insertions, 0 deletions

diff --git a/vespajlib/src/main/java/ai/vespa/validation/PatternedStringWrapper.java b/vespajlib/src/main/java/ai/vespa/validation/PatternedStringWrapper.java
new file mode 100644
index 00000000000..b97a7ed9cc1
--- /dev/null
+++ b/vespajlib/src/main/java/ai/vespa/validation/PatternedStringWrapper.java
@@ -0,0 +1,19 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package ai.vespa.validation;
+
+import java.util.regex.Pattern;
+
+import static ai.vespa.validation.Validation.requireMatch;
+
+/**
+ * Helper to easily create {@link StringWrapper} classes whose contents match a specific regex.
+ *
+ * @author jonmv
+ */
+public abstract class PatternedStringWrapper<T extends PatternedStringWrapper<T>> extends StringWrapper<T> {
+
+    protected PatternedStringWrapper(String value, Pattern pattern, String description) {
+        super(requireMatch(value, description, pattern));
+    }
+
+}