convert map to FlagSource with overrides

1 files changed, 46 insertions, 0 deletions

diff --git a/configserver/src/main/java/com/yahoo/vespa/config/server/modelfactory/LegacyFlags.java b/configserver/src/main/java/com/yahoo/vespa/config/server/modelfactory/LegacyFlags.java
new file mode 100644
index 00000000000..f4d939387cd
--- /dev/null
+++ b/configserver/src/main/java/com/yahoo/vespa/config/server/modelfactory/LegacyFlags.java
@@ -0,0 +1,46 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.vespa.config.server.modelfactory;
+
+import com.yahoo.config.application.api.ApplicationPackage;
+import com.yahoo.vespa.flags.Flags;
+import com.yahoo.vespa.flags.FlagSource;
+import com.yahoo.vespa.flags.InMemoryFlagSource;
+import com.yahoo.vespa.flags.OrderedFlagSource;
+
+import java.util.Map;
+
+
+/**
+ * @author arnej
+ */
+public class LegacyFlags {
+
+    public static final String GEO_POSITIONS = "geo-positions";
+    public static final String FOO_BAR = "foo-bar"; // for testing
+
+    private static FlagSource buildFrom(Map<String, String> legacyOverrides) {
+        var flags = new InMemoryFlagSource();
+        for (var entry : legacyOverrides.entrySet()) {
+            String key = entry.getKey();
+            String value = entry.getValue();
+            boolean legacyWanted = Boolean.valueOf(value);
+            switch (key) {
+            case GEO_POSITIONS:
+                flags = flags.withBooleanFlag(Flags.USE_V8_GEO_POSITIONS.id(), ! legacyWanted);
+                break;
+            case FOO_BAR:
+                // ignored
+                break;
+            default:
+                throw new IllegalArgumentException("Unknown legacy override: "+key);
+            }
+        }
+        return flags;
+    }
+
+    public static FlagSource from(ApplicationPackage pkg, FlagSource input) {
+        var overrides = buildFrom(pkg.legacyOverrides());
+        FlagSource result = new OrderedFlagSource(overrides, input);
+        return result;
+    }
+}