Diff: dcs-sdk-java-master/app/src/main/java/com/baidu/duer/dcs/devicemodule/speakcontroller/SpeakerControllerDeviceModule.java

Revision:

45:2aa9f933c8d2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dcs-sdk-java-master/app/src/main/java/com/baidu/duer/dcs/devicemodule/speakcontroller/SpeakerControllerDeviceModule.java	Tue Jul 18 16:34:48 2017 +0800
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2017 Baidu, Inc. All Rights Reserved.
+ * 
+ * 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 com.baidu.duer.dcs.devicemodule.speakcontroller;
+
+import com.baidu.duer.dcs.devicemodule.speakcontroller.message.AdjustVolumePayload;
+import com.baidu.duer.dcs.devicemodule.speakcontroller.message.MuteChangedPayload;
+import com.baidu.duer.dcs.devicemodule.speakcontroller.message.SetMutePayload;
+import com.baidu.duer.dcs.devicemodule.speakcontroller.message.SetVolumePayload;
+import com.baidu.duer.dcs.devicemodule.speakcontroller.message.VolumeStatePayload;
+import com.baidu.duer.dcs.devicemodule.system.HandleDirectiveException;
+import com.baidu.duer.dcs.devicemodule.system.HandleDirectiveException.ExceptionType;
+import com.baidu.duer.dcs.framework.BaseDeviceModule;
+import com.baidu.duer.dcs.framework.BaseMultiChannelMediaPlayer;
+import com.baidu.duer.dcs.framework.IMessageSender;
+import com.baidu.duer.dcs.framework.message.ClientContext;
+import com.baidu.duer.dcs.framework.message.Directive;
+import com.baidu.duer.dcs.framework.message.Event;
+import com.baidu.duer.dcs.framework.message.Header;
+import com.baidu.duer.dcs.framework.message.MessageIdHeader;
+import com.baidu.duer.dcs.framework.message.Payload;
+
+/**
+ * SpeakerController模块处理服务下发的SetVolume、AdjustVolume、SetMute指令，发送VolumeChanged、MuteChanged事件，
+ * 以及维护自身的端状态
+ * <p>
+ * Created by wuruisheng on 2017/5/31.
+ */
+public class SpeakerControllerDeviceModule extends BaseDeviceModule {
+    private final BaseMultiChannelMediaPlayer.ISpeakerController speakerController;
+
+    public SpeakerControllerDeviceModule(BaseMultiChannelMediaPlayer.ISpeakerController speakerController,
+                                         IMessageSender messageSender) {
+        super(ApiConstants.NAMESPACE, messageSender);
+        this.speakerController = speakerController;
+    }
+
+    @Override
+    public ClientContext clientContext() {
+        String namespace = getNameSpace();
+        String name = ApiConstants.Events.VolumeState.NAME;
+        Header header = new Header(namespace, name);
+        long volume = (long) (speakerController.getVolume() * 100.0F);
+        boolean mute = speakerController.getMute();
+        VolumeStatePayload payload = new VolumeStatePayload(volume, mute);
+        return new ClientContext(header, payload);
+    }
+
+    @Override
+    public void handleDirective(Directive directive) throws HandleDirectiveException {
+        Header header = directive.header;
+        String name = header.getName();
+        Payload payload = directive.getPayload();
+        if (name.equals(ApiConstants.Directives.AdjustVolume.NAME)) {
+            if (payload instanceof AdjustVolumePayload) {
+                AdjustVolumePayload adjustVolumePayload = (AdjustVolumePayload) directive.getPayload();
+                float increment = (float) adjustVolumePayload.getVolume() / 100.0F;
+                float volume = speakerController.getVolume() + increment;
+                volume = Math.min(1.0F, Math.max(volume, -1.0F));
+                setVolume(volume);
+            }
+        } else if (name.equals(ApiConstants.Directives.SetVolume.NAME)) {
+            if (payload instanceof SetVolumePayload) {
+                SetVolumePayload setVolumePayload = (SetVolumePayload) payload;
+                float volume = (float) setVolumePayload.getVolume() / 100.0F;
+                this.setVolume(volume);
+            }
+        } else if (name.equals(ApiConstants.Directives.SetMute.NAME)) {
+            if (payload instanceof SetMutePayload) {
+                SetMutePayload setMutePayload = (SetMutePayload) payload;
+                setMute(setMutePayload.getMute());
+            }
+        } else {
+            String message = "SpeakerController cannot handle the directive";
+            throw new HandleDirectiveException(ExceptionType.UNSUPPORTED_OPERATION, message);
+        }
+    }
+
+    @Override
+    public void release() {
+
+    }
+
+    private void setVolume(float volume) {
+        speakerController.setVolume(volume);
+        messageSender.sendEvent(volumeChangedEvent());
+    }
+
+    private void setMute(boolean mute) {
+        speakerController.setMute(mute);
+        messageSender.sendEvent(muteChangedEvent());
+    }
+
+    private Event volumeChangedEvent() {
+        String nameSpace = getNameSpace();
+        String name = ApiConstants.Events.VolumeChanged.NAME;
+        MessageIdHeader header = new MessageIdHeader(nameSpace, name);
+        VolumeStatePayload payload = new VolumeStatePayload(getVolume(), isMuted());
+        return new Event(header, payload);
+    }
+
+    private Event muteChangedEvent() {
+        String nameSpace = getNameSpace();
+        String name = ApiConstants.Events.MuteChanged.NAME;
+        MessageIdHeader header = new MessageIdHeader(nameSpace, name);
+        MuteChangedPayload payload = new MuteChangedPayload(getVolume(), isMuted());
+        return new Event(header, payload);
+    }
+
+    private long getVolume() {
+        return (long) (speakerController.getVolume() * 100.0F);
+    }
+
+    private boolean isMuted() {
+        return speakerController.getMute();
+    }
+}