Adds abstract distributed primitive builder + Refactored AtomicCounter and AtomicValue builder to make use of it.

Change-Id: I56cef62673fabc54ca29634c27e4ff1f41ba6a88
diff --git a/core/api/src/main/java/org/onosproject/store/primitives/DistributedPrimitiveBuilder.java b/core/api/src/main/java/org/onosproject/store/primitives/DistributedPrimitiveBuilder.java
new file mode 100644
index 0000000..2792ac5
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/store/primitives/DistributedPrimitiveBuilder.java
@@ -0,0 +1,155 @@
+/*
+ * Copyright 2016 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.primitives;
+
+import org.onosproject.core.ApplicationId;
+import org.onosproject.store.service.DistributedPrimitive;
+import org.onosproject.store.service.Serializer;
+
+/**
+ * Abstract builder for distributed primitives.
+ *
+ * @param <T> distributed primitive type
+ */
+public abstract class DistributedPrimitiveBuilder<T extends DistributedPrimitive> {
+
+    private DistributedPrimitive.Type type;
+    private String name;
+    private ApplicationId applicationId;
+    private Serializer serializer;
+    private boolean partitionsDisabled = false;
+    private boolean meteringDisabled = false;
+
+    public DistributedPrimitiveBuilder(DistributedPrimitive.Type type) {
+        this.type = type;
+    }
+
+    /**
+     * Sets the primitive name.
+     *
+     * @param name primitive name
+     * @return this builder
+     */
+    public DistributedPrimitiveBuilder<T> withName(String name) {
+        this.name = name;
+        return this;
+    }
+
+    /**
+     * Sets the serializer to use for transcoding info held in the primitive.
+     *
+     * @param serializer serializer
+     * @return this builder
+     */
+    public DistributedPrimitiveBuilder<T> withSerializer(Serializer serializer) {
+        this.serializer = serializer;
+        return this;
+    }
+
+    /**
+     * Sets the application id that owns this primitive.
+     *
+     * @param applicationId application identifier
+     * @return this builder
+     */
+    public DistributedPrimitiveBuilder<T> withApplicationId(ApplicationId applicationId) {
+        this.applicationId = applicationId;
+        return this;
+    }
+
+    /**
+     * Creates this primitive on a special partition that comprises of all members in the cluster.
+     * @deprecated usage of this method is discouraged for most common scenarios. Eventually it will be replaced
+     * with a better alternative that does not exposes low level details. Until then avoid using this method.
+     * @return this builder
+     */
+    @Deprecated
+    public DistributedPrimitiveBuilder<T> withPartitionsDisabled() {
+        this.partitionsDisabled = true;
+        return this;
+    }
+
+    /**
+     * Disables recording usage stats for this primitive.
+     * @deprecated usage of this method is discouraged for most common scenarios.
+     * @return this builder
+     */
+    @Deprecated
+    public DistributedPrimitiveBuilder<T> withMeteringDisabled() {
+        this.meteringDisabled = true;
+        return this;
+    }
+
+    /**
+     * Returns if metering is enabled.
+     *
+     * @return {@code true} if yes; {@code false} otherwise
+     */
+    public final boolean meteringEnabled() {
+        return !meteringDisabled;
+    }
+
+    /**
+     * Returns if partitions are disabled.
+     *
+     * @return {@code true} if yes; {@code false} otherwise
+     */
+    public final boolean partitionsDisabled() {
+        return partitionsDisabled;
+    }
+
+    /**
+     * Returns the serializer.
+     *
+     * @return serializer
+     */
+    public final Serializer serializer() {
+        return serializer;
+    }
+
+    /**
+     * Returns the application identifier.
+     *
+     * @return application id
+     */
+    public final ApplicationId applicationId() {
+        return applicationId;
+    }
+
+    /**
+     * Returns the name of the primitive.
+     *
+     * @return primitive name
+     */
+    public final String name() {
+        return name;
+    }
+
+    /**
+     * Returns the primitive type.
+     *
+     * @return primitive type
+     */
+    public final DistributedPrimitive.Type type() {
+        return type;
+    }
+
+    /**
+     * Constructs an instance of the distributed primitive.
+     * @return distributed primitive
+     */
+    public abstract T build();
+}