1 files changed, 81 insertions, 0 deletions
diff --git a/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/DefaultDistributedQueueBuilder.java b/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/DefaultDistributedQueueBuilder.java
new file mode 100644
index 00000000..d6654e27
--- /dev/null
+++ b/framework/src/onos/core/store/dist/src/main/java/org/onosproject/store/consistent/impl/DefaultDistributedQueueBuilder.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2015 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.consistent.impl;
+
+import org.onosproject.store.service.DistributedQueue;
+import org.onosproject.store.service.DistributedQueueBuilder;
+import org.onosproject.store.service.Serializer;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkState;
+
+/**
+ * Default implementation of a {@code DistributedQueueBuilder}.
+ *
+ * @param <E> queue entry type
+ */
+public class DefaultDistributedQueueBuilder<E> implements DistributedQueueBuilder<E> {
+
+    private Serializer serializer;
+    private String name;
+    private boolean persistenceEnabled = true;
+    private final DatabaseManager databaseManager;
+    private boolean metering = true;
+
+    public DefaultDistributedQueueBuilder(DatabaseManager databaseManager) {
+        this.databaseManager = databaseManager;
+    }
+
+    @Override
+    public DistributedQueueBuilder<E> withName(String name) {
+        checkArgument(name != null && !name.isEmpty());
+        this.name = name;
+        return this;
+    }
+
+    @Override
+    public DistributedQueueBuilder<E> withSerializer(Serializer serializer) {
+        checkArgument(serializer != null);
+        this.serializer = serializer;
+        return this;
+    }
+
+    @Override
+    public DistributedQueueBuilder<E> withMeteringDisabled() {
+        metering = false;
+        return this;
+    }
+
+    @Override
+    public DistributedQueueBuilder<E> withPersistenceDisabled() {
+        persistenceEnabled = false;
+        return this;
+    }
+
+    private boolean validInputs() {
+        return name != null && serializer != null;
+    }
+
+    @Override
+    public DistributedQueue<E> build() {
+        checkState(validInputs());
+        return new DefaultDistributedQueue<>(
+                name,
+                persistenceEnabled ? databaseManager.partitionedDatabase : databaseManager.inMemoryDatabase,
+                serializer,
+                metering);
+    }
+}