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dcs-sdk-java-master/app/src/main/java/com/baidu/duer/dcs/devicemodule/speakcontroller/SpeakerControllerDeviceModule.java@45:2aa9f933c8d2, 2017-07-18 (annotated)

Committer:
TMBOY
Date:
Tue Jul 18 16:34:48 2017 +0800
Revision:
45:2aa9f933c8d2
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TMBOY 45:2aa9f933c8d2 1 /*
TMBOY 45:2aa9f933c8d2 2 * Copyright (c) 2017 Baidu, Inc. All Rights Reserved.
TMBOY 45:2aa9f933c8d2 3 *
TMBOY 45:2aa9f933c8d2 4 * Licensed under the Apache License, Version 2.0 (the "License");
TMBOY 45:2aa9f933c8d2 5 * you may not use this file except in compliance with the License.
TMBOY 45:2aa9f933c8d2 6 * You may obtain a copy of the License at
TMBOY 45:2aa9f933c8d2 7 *
TMBOY 45:2aa9f933c8d2 8 * http://www.apache.org/licenses/LICENSE-2.0
TMBOY 45:2aa9f933c8d2 9 *
TMBOY 45:2aa9f933c8d2 10 * Unless required by applicable law or agreed to in writing, software
TMBOY 45:2aa9f933c8d2 11 * distributed under the License is distributed on an "AS IS" BASIS,
TMBOY 45:2aa9f933c8d2 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
TMBOY 45:2aa9f933c8d2 13 * See the License for the specific language governing permissions and
TMBOY 45:2aa9f933c8d2 14 * limitations under the License.
TMBOY 45:2aa9f933c8d2 15 */
TMBOY 45:2aa9f933c8d2 16 package com.baidu.duer.dcs.devicemodule.speakcontroller;
TMBOY 45:2aa9f933c8d2 17
TMBOY 45:2aa9f933c8d2 18 import com.baidu.duer.dcs.devicemodule.speakcontroller.message.AdjustVolumePayload;
TMBOY 45:2aa9f933c8d2 19 import com.baidu.duer.dcs.devicemodule.speakcontroller.message.MuteChangedPayload;
TMBOY 45:2aa9f933c8d2 20 import com.baidu.duer.dcs.devicemodule.speakcontroller.message.SetMutePayload;
TMBOY 45:2aa9f933c8d2 21 import com.baidu.duer.dcs.devicemodule.speakcontroller.message.SetVolumePayload;
TMBOY 45:2aa9f933c8d2 22 import com.baidu.duer.dcs.devicemodule.speakcontroller.message.VolumeStatePayload;
TMBOY 45:2aa9f933c8d2 23 import com.baidu.duer.dcs.devicemodule.system.HandleDirectiveException;
TMBOY 45:2aa9f933c8d2 24 import com.baidu.duer.dcs.devicemodule.system.HandleDirectiveException.ExceptionType;
TMBOY 45:2aa9f933c8d2 25 import com.baidu.duer.dcs.framework.BaseDeviceModule;
TMBOY 45:2aa9f933c8d2 26 import com.baidu.duer.dcs.framework.BaseMultiChannelMediaPlayer;
TMBOY 45:2aa9f933c8d2 27 import com.baidu.duer.dcs.framework.IMessageSender;
TMBOY 45:2aa9f933c8d2 28 import com.baidu.duer.dcs.framework.message.ClientContext;
TMBOY 45:2aa9f933c8d2 29 import com.baidu.duer.dcs.framework.message.Directive;
TMBOY 45:2aa9f933c8d2 30 import com.baidu.duer.dcs.framework.message.Event;
TMBOY 45:2aa9f933c8d2 31 import com.baidu.duer.dcs.framework.message.Header;
TMBOY 45:2aa9f933c8d2 32 import com.baidu.duer.dcs.framework.message.MessageIdHeader;
TMBOY 45:2aa9f933c8d2 33 import com.baidu.duer.dcs.framework.message.Payload;
TMBOY 45:2aa9f933c8d2 34
TMBOY 45:2aa9f933c8d2 35 /**
TMBOY 45:2aa9f933c8d2 36 * SpeakerController模块处理服务下发的SetVolume、AdjustVolume、SetMute指令，发送VolumeChanged、MuteChanged事件，
TMBOY 45:2aa9f933c8d2 37 * 以及维护自身的端状态
TMBOY 45:2aa9f933c8d2 38 * <p>
TMBOY 45:2aa9f933c8d2 39 * Created by wuruisheng on 2017/5/31.
TMBOY 45:2aa9f933c8d2 40 */
TMBOY 45:2aa9f933c8d2 41 public class SpeakerControllerDeviceModule extends BaseDeviceModule {
TMBOY 45:2aa9f933c8d2 42 private final BaseMultiChannelMediaPlayer.ISpeakerController speakerController;
TMBOY 45:2aa9f933c8d2 43
TMBOY 45:2aa9f933c8d2 44 public SpeakerControllerDeviceModule(BaseMultiChannelMediaPlayer.ISpeakerController speakerController,
TMBOY 45:2aa9f933c8d2 45 IMessageSender messageSender) {
TMBOY 45:2aa9f933c8d2 46 super(ApiConstants.NAMESPACE, messageSender);
TMBOY 45:2aa9f933c8d2 47 this.speakerController = speakerController;
TMBOY 45:2aa9f933c8d2 48 }
TMBOY 45:2aa9f933c8d2 49
TMBOY 45:2aa9f933c8d2 50 @Override
TMBOY 45:2aa9f933c8d2 51 public ClientContext clientContext() {
TMBOY 45:2aa9f933c8d2 52 String namespace = getNameSpace();
TMBOY 45:2aa9f933c8d2 53 String name = ApiConstants.Events.VolumeState.NAME;
TMBOY 45:2aa9f933c8d2 54 Header header = new Header(namespace, name);
TMBOY 45:2aa9f933c8d2 55 long volume = (long) (speakerController.getVolume() * 100.0F);
TMBOY 45:2aa9f933c8d2 56 boolean mute = speakerController.getMute();
TMBOY 45:2aa9f933c8d2 57 VolumeStatePayload payload = new VolumeStatePayload(volume, mute);
TMBOY 45:2aa9f933c8d2 58 return new ClientContext(header, payload);
TMBOY 45:2aa9f933c8d2 59 }
TMBOY 45:2aa9f933c8d2 60
TMBOY 45:2aa9f933c8d2 61 @Override
TMBOY 45:2aa9f933c8d2 62 public void handleDirective(Directive directive) throws HandleDirectiveException {
TMBOY 45:2aa9f933c8d2 63 Header header = directive.header;
TMBOY 45:2aa9f933c8d2 64 String name = header.getName();
TMBOY 45:2aa9f933c8d2 65 Payload payload = directive.getPayload();
TMBOY 45:2aa9f933c8d2 66 if (name.equals(ApiConstants.Directives.AdjustVolume.NAME)) {
TMBOY 45:2aa9f933c8d2 67 if (payload instanceof AdjustVolumePayload) {
TMBOY 45:2aa9f933c8d2 68 AdjustVolumePayload adjustVolumePayload = (AdjustVolumePayload) directive.getPayload();
TMBOY 45:2aa9f933c8d2 69 float increment = (float) adjustVolumePayload.getVolume() / 100.0F;
TMBOY 45:2aa9f933c8d2 70 float volume = speakerController.getVolume() + increment;
TMBOY 45:2aa9f933c8d2 71 volume = Math.min(1.0F, Math.max(volume, -1.0F));
TMBOY 45:2aa9f933c8d2 72 setVolume(volume);
TMBOY 45:2aa9f933c8d2 73 }
TMBOY 45:2aa9f933c8d2 74 } else if (name.equals(ApiConstants.Directives.SetVolume.NAME)) {
TMBOY 45:2aa9f933c8d2 75 if (payload instanceof SetVolumePayload) {
TMBOY 45:2aa9f933c8d2 76 SetVolumePayload setVolumePayload = (SetVolumePayload) payload;
TMBOY 45:2aa9f933c8d2 77 float volume = (float) setVolumePayload.getVolume() / 100.0F;
TMBOY 45:2aa9f933c8d2 78 this.setVolume(volume);
TMBOY 45:2aa9f933c8d2 79 }
TMBOY 45:2aa9f933c8d2 80 } else if (name.equals(ApiConstants.Directives.SetMute.NAME)) {
TMBOY 45:2aa9f933c8d2 81 if (payload instanceof SetMutePayload) {
TMBOY 45:2aa9f933c8d2 82 SetMutePayload setMutePayload = (SetMutePayload) payload;
TMBOY 45:2aa9f933c8d2 83 setMute(setMutePayload.getMute());
TMBOY 45:2aa9f933c8d2 84 }
TMBOY 45:2aa9f933c8d2 85 } else {
TMBOY 45:2aa9f933c8d2 86 String message = "SpeakerController cannot handle the directive";
TMBOY 45:2aa9f933c8d2 87 throw new HandleDirectiveException(ExceptionType.UNSUPPORTED_OPERATION, message);
TMBOY 45:2aa9f933c8d2 88 }
TMBOY 45:2aa9f933c8d2 89 }
TMBOY 45:2aa9f933c8d2 90
TMBOY 45:2aa9f933c8d2 91 @Override
TMBOY 45:2aa9f933c8d2 92 public void release() {
TMBOY 45:2aa9f933c8d2 93
TMBOY 45:2aa9f933c8d2 94 }
TMBOY 45:2aa9f933c8d2 95
TMBOY 45:2aa9f933c8d2 96 private void setVolume(float volume) {
TMBOY 45:2aa9f933c8d2 97 speakerController.setVolume(volume);
TMBOY 45:2aa9f933c8d2 98 messageSender.sendEvent(volumeChangedEvent());
TMBOY 45:2aa9f933c8d2 99 }
TMBOY 45:2aa9f933c8d2 100
TMBOY 45:2aa9f933c8d2 101 private void setMute(boolean mute) {
TMBOY 45:2aa9f933c8d2 102 speakerController.setMute(mute);
TMBOY 45:2aa9f933c8d2 103 messageSender.sendEvent(muteChangedEvent());
TMBOY 45:2aa9f933c8d2 104 }
TMBOY 45:2aa9f933c8d2 105
TMBOY 45:2aa9f933c8d2 106 private Event volumeChangedEvent() {
TMBOY 45:2aa9f933c8d2 107 String nameSpace = getNameSpace();
TMBOY 45:2aa9f933c8d2 108 String name = ApiConstants.Events.VolumeChanged.NAME;
TMBOY 45:2aa9f933c8d2 109 MessageIdHeader header = new MessageIdHeader(nameSpace, name);
TMBOY 45:2aa9f933c8d2 110 VolumeStatePayload payload = new VolumeStatePayload(getVolume(), isMuted());
TMBOY 45:2aa9f933c8d2 111 return new Event(header, payload);
TMBOY 45:2aa9f933c8d2 112 }
TMBOY 45:2aa9f933c8d2 113
TMBOY 45:2aa9f933c8d2 114 private Event muteChangedEvent() {
TMBOY 45:2aa9f933c8d2 115 String nameSpace = getNameSpace();
TMBOY 45:2aa9f933c8d2 116 String name = ApiConstants.Events.MuteChanged.NAME;
TMBOY 45:2aa9f933c8d2 117 MessageIdHeader header = new MessageIdHeader(nameSpace, name);
TMBOY 45:2aa9f933c8d2 118 MuteChangedPayload payload = new MuteChangedPayload(getVolume(), isMuted());
TMBOY 45:2aa9f933c8d2 119 return new Event(header, payload);
TMBOY 45:2aa9f933c8d2 120 }
TMBOY 45:2aa9f933c8d2 121
TMBOY 45:2aa9f933c8d2 122 private long getVolume() {
TMBOY 45:2aa9f933c8d2 123 return (long) (speakerController.getVolume() * 100.0F);
TMBOY 45:2aa9f933c8d2 124 }
TMBOY 45:2aa9f933c8d2 125
TMBOY 45:2aa9f933c8d2 126 private boolean isMuted() {
TMBOY 45:2aa9f933c8d2 127 return speakerController.getMute();
TMBOY 45:2aa9f933c8d2 128 }
TMBOY 45:2aa9f933c8d2 129 }