1 files changed, 91 insertions, 0 deletions
diff --git a/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/Lur.java b/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/Lur.java
new file mode 100644
index 00000000..0c3302f5
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+++ b/cadi/core/src/main/java/org/onap/ccsdk/apps/cadi/Lur.java
@@ -0,0 +1,91 @@
+/**
+ * ============LICENSE_START====================================================
+ * org.onap.ccsdk
+ * ===========================================================================
+ * Copyright (c) 2023 AT&T Intellectual Property. All rights reserved.
+ * ===========================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END====================================================
+ *
+ */
+
+package org.onap.ccsdk.apps.cadi;
+
+import java.security.Principal;
+import java.util.List;
+
+
+
+/**
+ * LUR: Local User Registry
+ *
+ * Concept by Robert Garskof, Implementation by Jonathan Gathman
+ *
+ * Where we can keep local copies of users and roles for faster Authorization when asked.
+ *
+ * Note: Author cannot resist the mental image of using a Fishing Lure to this LUR pattern
+ *
+ *
+ */
+public interface Lur {
+    /**
+     * Allow the Lur, which has correct Permission access, to create and hand back.
+     */
+    public Permission createPerm(String p);
+
+    /**
+     * Fish for Principals in a Pond
+     *
+     *   or more boringly, is the User identified within a named collection representing permission.
+     *
+     * @param principalName
+     * @return
+     */
+    public boolean fish(Principal bait, Permission ... pond);
+
+    /**
+     * Fish all the Principals out a Pond
+     *
+     *   For additional humor, pronounce the following with a Southern Drawl, "FishOil"
+     *
+     *   or more boringly, load the List with Permissions found for Principal
+     *
+     * @param principalName
+     * @return
+     */
+    public void fishAll(Principal bait, List<Permission> permissions);
+
+    /**
+     * Allow implementations to disconnect, or cleanup resources if unneeded
+     */
+    public void destroy();
+
+    /**
+     * Does this LUR handle this pond exclusively?  Important for EpiLUR to determine whether
+     * to try another (more expensive) LUR
+     * @param pond
+     * @return
+     */
+    public boolean handlesExclusively(Permission ... pond);
+
+    /**
+     *  Does the LUR support a particular kind of Principal
+     *  This can be used to check name's domain, like above, or Principal type
+     */
+    public boolean handles(Principal principal);
+
+    /**
+     * Clear: Clear any Caching, if exists
+     */
+    public void clear(Principal p, StringBuilder report);
+}