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+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include "Element.h"
+#include <RoutingStrategy.h>
+
+namespace android
+{
+namespace audio_policy
+{
+
+/**
+ * @tparam audio_devices_t: Applicable output device(s) for this strategy.
+ */
+template <>
+class Element<routing_strategy>
+{
+public:
+ Element(const std::string &name)
+ : mName(name),
+ mApplicableDevices(AUDIO_DEVICE_NONE)
+ {}
+ ~Element() {}
+
+ /**
+ * Returns identifier of this policy element
+ *
+ * @returns string representing the name of this policy element
+ */
+ const std::string &getName() const { return mName; }
+
+ /**
+ * Set the unique identifier for this policy element.
+ *
+ * @tparam Key type of the unique identifier.
+ * @param[in] identifier to be set.
+ *
+ * @return NO_ERROR if the identifier is valid and set correctly, error code otherwise.
+ */
+ status_t setIdentifier(routing_strategy identifier);
+
+ /**
+ * @return the unique identifier of this policy element.
+ */
+ routing_strategy getIdentifier() const { return mIdentifier; }
+
+ /**
+ * A Policy element may implement getter/setter function for a given property.
+ * Property may be routing_strategy, audio_stream_type_t, audio_usage_t, audio_source_t
+ * or a string.
+ */
+ template <typename Property>
+ Property get() const;
+
+ template <typename Property>
+ status_t set(Property property);
+
+private:
+ /* Copy facilities are put private to disable copy. */
+ Element(const Element &object);
+ Element &operator=(const Element &object);
+
+ std::string mName; /**< Unique literal Identifier of a policy base element*/
+ routing_strategy mIdentifier; /**< Unique numerical Identifier of a policy base element*/
+
+ audio_devices_t mApplicableDevices; /**< Applicable output device(s) for this strategy. */
+};
+
+typedef Element<routing_strategy> Strategy;
+
+} // namespace audio_policy
+} // namespace android
+
+