Move SuperModel API to config-model-api

3 files changed, 59 insertions, 0 deletions

diff --git a/config-model-api/src/main/java/com/yahoo/config/model/api/ApplicationInfo.java b/config-model-api/src/main/java/com/yahoo/config/model/api/ApplicationInfo.java
new file mode 100644
index 00000000000..c6a72ebb3ff
--- /dev/null
+++ b/config-model-api/src/main/java/com/yahoo/config/model/api/ApplicationInfo.java
@@ -0,0 +1,26 @@
+// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.config.model.api;
+
+import com.yahoo.config.provision.ApplicationId;
+
+public class ApplicationInfo {
+    private final ApplicationId applicationId;
+    private final long generation;
+    private final Model model;  // NOT immutable
+
+    public ApplicationInfo(ApplicationId applicationId, long generation, Model model) {
+        this.applicationId = applicationId;
+        this.generation = generation;
+        this.model = model;
+    }
+
+    public ApplicationId getApplicationId() {
+        return applicationId;
+    }
+    public long getGeneration() {
+        return generation;
+    }
+    public Model getModel() {
+        return model;
+    }
+}
diff --git a/config-model-api/src/main/java/com/yahoo/config/model/api/SuperModelListener.java b/config-model-api/src/main/java/com/yahoo/config/model/api/SuperModelListener.java
new file mode 100644
index 00000000000..16580c9e9f6
--- /dev/null
+++ b/config-model-api/src/main/java/com/yahoo/config/model/api/SuperModelListener.java
@@ -0,0 +1,20 @@
+// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.config.model.api;
+
+import com.yahoo.config.provision.ApplicationId;
+
+/**
+ * Interface for those wanting to be notified about changes to the SuperModel.
+ */
+public interface SuperModelListener {
+    /**
+     * Application has been activated: Either deployed the first time,
+     * internally redeployed, or externally triggered redeploy.
+     */
+    void applicationActivated(ApplicationInfo application);
+
+    /**
+     * Application has been removed.
+     */
+    void applicationRemoved(ApplicationId id);
+}
diff --git a/config-model-api/src/main/java/com/yahoo/config/model/api/SuperModelProvider.java b/config-model-api/src/main/java/com/yahoo/config/model/api/SuperModelProvider.java
new file mode 100644
index 00000000000..42437b20b83
--- /dev/null
+++ b/config-model-api/src/main/java/com/yahoo/config/model/api/SuperModelProvider.java
@@ -0,0 +1,13 @@
+// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.config.model.api;
+
+import java.util.List;
+
+public interface SuperModelProvider {
+    /**
+     * Returns all applications in the SuperModel. All changes to the SuperModel
+     * following that snapshot will be published to the listener. Warning: The listener
+     * methods may have been invoked before (or concurrently with) this method returning.
+     */
+    List<ApplicationInfo> snapshot(SuperModelListener listener);
+}