Change Batch Packaging

[aaf/authz.git] / auth / auth-batch / src / main / java / org / onap / aaf / auth / batch / helpers / CacheChange.java

diff --git a/auth/auth-batch/src/main/java/org/onap/aaf/auth/batch/helpers/CacheChange.java b/auth/auth-batch/src/main/java/org/onap/aaf/auth/batch/helpers/CacheChange.java
new file mode 100644 (file)
index 0000000..a4cfcbe
--- /dev/null
+++ b/auth/auth-batch/src/main/java/org/onap/aaf/auth/batch/helpers/CacheChange.java
@@ -0,0 +1,63 @@
+/**
+ * ============LICENSE_START====================================================
+ * org.onap.aaf
+ * ===========================================================================
+ * Copyright (c) 2018 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.aaf.auth.batch.helpers;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class CacheChange<T extends CacheChange.Data> {
+    private List<T> removed;
+    
+    public CacheChange() {
+        removed = new ArrayList<>();
+    }
+    
+    interface Data {
+        public abstract void expunge();
+    }
+    
+    public final void delayedDelete(T t) {
+        removed.add(t);
+    }
+    
+    public final List<T> getRemoved() {
+        return removed;
+    }
+    
+    public final void resetLocalData() {
+        if (removed==null || removed.isEmpty()) {
+            return;
+        }
+        for (T t : removed) {
+            t.expunge();
+        }
+        removed.clear();
+    }
+
+    public int cacheSize() {
+        return removed.size();
+    }
+
+    public boolean contains(T t) {
+        return removed.contains(t);
+    }
+}