Persist application roles

2 files changed, 53 insertions, 0 deletions

diff --git a/config-model-api/src/main/java/com/yahoo/config/model/api/ApplicationRoles.java b/config-model-api/src/main/java/com/yahoo/config/model/api/ApplicationRoles.java
new file mode 100644
index 00000000000..8492603e2e3
--- /dev/null
+++ b/config-model-api/src/main/java/com/yahoo/config/model/api/ApplicationRoles.java
@@ -0,0 +1,51 @@
+// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.config.model.api;
+
+import com.google.common.base.Strings;
+
+/**
+ * @author mortent
+ */
+public class ApplicationRoles {
+    private final String applicationHostRole;
+    private final String applicationContainerRole;
+
+    public ApplicationRoles(String applicationHostRole, String applicationContainerRole) {
+        this.applicationHostRole = applicationHostRole;
+        this.applicationContainerRole = applicationContainerRole;
+    }
+
+    /**
+     * @return an ApplicationRoles instance if both hostRole and containerRole is non-empty, <code>null</code> otherwise
+     */
+    public static ApplicationRoles fromString(String hostRole, String containerRole) {
+        if(Strings.isNullOrEmpty(hostRole) || Strings.isNullOrEmpty(containerRole)) {
+            return null;
+        }
+        return new ApplicationRoles(hostRole, containerRole);
+    }
+
+    public String applicationContainerRole() {
+        return applicationContainerRole;
+    }
+
+    public String applicationHostRole() {
+        return applicationHostRole;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        ApplicationRoles that = (ApplicationRoles) o;
+        if (!applicationHostRole.equals(that.applicationHostRole)) return false;
+        return applicationContainerRole.equals(that.applicationContainerRole);
+    }
+
+    @Override
+    public int hashCode() {
+        int result = applicationHostRole.hashCode();
+        result = 31 * result + applicationContainerRole.hashCode();
+        return result;
+    }
+}
diff --git a/config-model-api/src/main/java/com/yahoo/config/model/api/ModelContext.java b/config-model-api/src/main/java/com/yahoo/config/model/api/ModelContext.java
index 7641f14b007..33369727703 100644
--- a/config-model-api/src/main/java/com/yahoo/config/model/api/ModelContext.java
+++ b/config-model-api/src/main/java/com/yahoo/config/model/api/ModelContext.java
@@ -93,6 +93,8 @@ public interface ModelContext {
 
         // TODO(mpolden): Remove after May 2020
         default boolean useDedicatedNodesWhenUnspecified() { return true; }
+
+        Optional<ApplicationRoles> applicationRoles();
     }
 
 }