ONOS checkin based on commit tag e796610b1f721d02f9b0e213cf6f7790c10ecd60

Change-Id: Ife8810491034fe7becdba75dda20de4267bd15cd

1 files changed, 48 insertions, 0 deletions

diff --git a/framework/src/onos/core/common/src/test/java/org/onosproject/store/trivial/SimpleIdBlockStore.java b/framework/src/onos/core/common/src/test/java/org/onosproject/store/trivial/SimpleIdBlockStore.java
new file mode 100644
index 00000000..3f7e563a
--- /dev/null
+++ b/framework/src/onos/core/common/src/test/java/org/onosproject/store/trivial/SimpleIdBlockStore.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * 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.
+ */
+package org.onosproject.store.trivial;
+
+import org.apache.felix.scr.annotations.Component;
+import org.apache.felix.scr.annotations.Service;
+import org.onosproject.core.IdBlock;
+import org.onosproject.core.IdBlockStore;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.atomic.AtomicLong;
+
+/**
+ * Simple implementation of id block store.
+ */
+@Component(immediate = true)
+@Service
+public class SimpleIdBlockStore implements IdBlockStore {
+
+    private static final long DEFAULT_BLOCK_SIZE = 0x1000L;
+
+    private final Map<String, AtomicLong> topicBlocks = new ConcurrentHashMap<>();
+
+    @Override
+    public synchronized IdBlock getIdBlock(String topic) {
+        AtomicLong blockGenerator = topicBlocks.get(topic);
+        if (blockGenerator == null) {
+            blockGenerator = new AtomicLong(0);
+            topicBlocks.put(topic, blockGenerator);
+        }
+        Long blockBase = blockGenerator.getAndAdd(DEFAULT_BLOCK_SIZE);
+        return new IdBlock(blockBase, DEFAULT_BLOCK_SIZE);
+    }
+}