1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "PolicySubsystem.h"
18 #include "SubsystemObjectFactory.h"
19 #include "PolicyMappingKeys.h"
20 #include "Stream.h"
21 #include "InputSource.h"
22 #include "ProductStrategy.h"
23 #include <AudioPolicyPluginInterface.h>
24 #include <AudioPolicyEngineInstance.h>
25 #include <utils/Log.h>
26
27 using android::audio_policy::EngineInstance;
28
29 const char *const PolicySubsystem::mKeyName = "Name";
30 const char *const PolicySubsystem::mKeyIdentifier = "Identifier";
31 const char *const PolicySubsystem::mKeyCategory = "Category";
32 const char *const PolicySubsystem::mKeyAmend1 = "Amend1";
33 const char *const PolicySubsystem::mKeyAmend2 = "Amend2";
34 const char *const PolicySubsystem::mKeyAmend3 = "Amend3";
35
36
37 const char *const PolicySubsystem::mStreamComponentName = "Stream";
38 const char *const PolicySubsystem::mInputSourceComponentName = "InputSource";
39 const char *const PolicySubsystem::mProductStrategyComponentName = "ProductStrategy";
40
PolicySubsystem(const std::string & name,core::log::Logger & logger)41 PolicySubsystem::PolicySubsystem(const std::string &name, core::log::Logger &logger)
42 : CSubsystem(name, logger),
43 mPluginInterface(NULL)
44 {
45 // Try to connect a Plugin Interface from Audio Policy Engine
46 EngineInstance *engineInstance = EngineInstance::getInstance();
47
48 ALOG_ASSERT(engineInstance != NULL, "NULL Plugin Interface");
49
50 // Retrieve the Route Interface
51 mPluginInterface = engineInstance->queryInterface<android::AudioPolicyPluginInterface>();
52 ALOG_ASSERT(mPluginInterface != NULL, "NULL Plugin Interface");
53
54 // Provide mapping keys to the core, necessary when parsing the XML Structure files.
55 addContextMappingKey(mKeyName);
56 addContextMappingKey(mKeyCategory);
57 addContextMappingKey(mKeyIdentifier);
58 addContextMappingKey(mKeyAmend1);
59 addContextMappingKey(mKeyAmend2);
60 addContextMappingKey(mKeyAmend3);
61
62 // Provide creators to upper layer
63 addSubsystemObjectFactory(
64 new TSubsystemObjectFactory<Stream>(
65 mStreamComponentName,
66 (1 << MappingKeyName))
67 );
68 addSubsystemObjectFactory(
69 new TSubsystemObjectFactory<InputSource>(
70 mInputSourceComponentName,
71 (1 << MappingKeyName))
72 );
73 addSubsystemObjectFactory(
74 new TSubsystemObjectFactory<ProductStrategy>(
75 mProductStrategyComponentName, (1 << MappingKeyName))
76 );
77 }
78
79 // Retrieve Route interface
getPolicyPluginInterface() const80 android::AudioPolicyPluginInterface *PolicySubsystem::getPolicyPluginInterface() const
81 {
82 ALOG_ASSERT(mPluginInterface != NULL, "NULL Plugin Interface");
83 return mPluginInterface;
84 }
85