Diff: dcs-sdk-java-master/app/src/main/java/com/baidu/duer/dcs/devicemodule/voiceinput/VoiceInputDeviceModule.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/voiceinput/VoiceInputDeviceModule.java	Tue Jul 18 16:34:48 2017 +0800
@@ -0,0 +1,198 @@
+/*
+ * 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.voiceinput;
+
+import com.baidu.duer.dcs.devicemodule.system.HandleDirectiveException;
+import com.baidu.duer.dcs.devicemodule.voiceinput.message.ListenStartedPayload;
+import com.baidu.duer.dcs.framework.BaseDeviceModule;
+import com.baidu.duer.dcs.framework.DcsResponseDispatcher;
+import com.baidu.duer.dcs.framework.DialogRequestIdHandler;
+import com.baidu.duer.dcs.framework.IMessageSender;
+import com.baidu.duer.dcs.framework.IResponseListener;
+import com.baidu.duer.dcs.framework.message.ClientContext;
+import com.baidu.duer.dcs.framework.message.DcsStreamRequestBody;
+import com.baidu.duer.dcs.framework.message.DialogRequestIdHeader;
+import com.baidu.duer.dcs.framework.message.Directive;
+import com.baidu.duer.dcs.framework.message.Event;
+import com.baidu.duer.dcs.framework.message.Payload;
+import com.baidu.duer.dcs.systeminterface.IAudioInput;
+import com.baidu.duer.dcs.systeminterface.IMediaPlayer;
+import com.baidu.duer.dcs.util.LogUtil;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * Voice Input模块处理并执行服务下发的StopListen、Listen指令，上报ListenStarted、ListenTimedOut事件
+ * <p>
+ * Created by wuruisheng on 2017/5/31.
+ */
+public class VoiceInputDeviceModule extends BaseDeviceModule {
+    public static final String TAG = VoiceInputDeviceModule.class.getSimpleName();
+    private final IAudioInput audioInput;
+    private final List<IVoiceInputListener> voiceInputListeners;
+    private final IMediaPlayer mediaPlayer;
+    private final DialogRequestIdHandler dialogRequestIdHandler;
+    private final DcsResponseDispatcher dcsResponseDispatcher;
+
+    public VoiceInputDeviceModule(final IMediaPlayer mediaPlayer,
+                                  IMessageSender messageSender,
+                                  final IAudioInput audioInput,
+                                  DialogRequestIdHandler dialogRequestIdHandler,
+                                  DcsResponseDispatcher dcsResponseDispatcher) {
+        super(ApiConstants.NAMESPACE, messageSender);
+        this.audioInput = audioInput;
+        this.voiceInputListeners = Collections.synchronizedList(new ArrayList<IVoiceInputListener>());
+        this.mediaPlayer = mediaPlayer;
+        this.dialogRequestIdHandler = dialogRequestIdHandler;
+        this.dcsResponseDispatcher = dcsResponseDispatcher;
+
+        this.audioInput.registerAudioInputListener(new IAudioInput.IAudioInputListener() {
+            @Override
+            public void onStartRecord(DcsStreamRequestBody dcsStreamRequestBody) {
+                stopSpeaker();
+                // 发送网络请求
+                sendListenStartedEvent(dcsStreamRequestBody, new IResponseListener() {
+                    @Override
+                    public void onSucceed(int statusCode) {
+                        fireOnSucceed(statusCode);
+                        // 没有下发新的语音speak-stream
+                        if (statusCode == 204) {
+                            // 设置对话通道为非活跃状态
+                            mediaPlayer.setActive(false);
+                        } else {
+                            mediaPlayer.setActive(true);
+                        }
+                    }
+
+                    @Override
+                    public void onFailed(String errorMessage) {
+                        LogUtil.d(TAG, "onFailed,errorMessage:" + errorMessage);
+                        fireOnFailed(errorMessage);
+                        audioInput.stopRecord();
+                        mediaPlayer.setActive(false);
+                    }
+                });
+
+                fireOnStartRecord();
+            }
+
+            @Override
+            public void onStopRecord() {
+                fireFinishRecord();
+            }
+        });
+    }
+
+
+    @Override
+    public ClientContext clientContext() {
+        return null;
+    }
+
+    @Override
+    public void handleDirective(Directive directive) throws HandleDirectiveException {
+        String name = directive.getName();
+        if (name.equals(ApiConstants.Directives.StopListen.NAME)) {
+            audioInput.stopRecord();
+        } else if (name.equals(ApiConstants.Directives.Listen.NAME)) {
+            audioInput.startRecord();
+        } else {
+            String message = "No device to handle the directive";
+            throw new HandleDirectiveException(
+                    HandleDirectiveException.ExceptionType.UNSUPPORTED_OPERATION,
+                    message);
+        }
+    }
+
+    @Override
+    public void release() {
+        voiceInputListeners.clear();
+    }
+
+    /**
+     * 停止speaker对话通道的语音播放
+     */
+    private void stopSpeaker() {
+        mediaPlayer.setActive(true);
+        mediaPlayer.stop();
+        dcsResponseDispatcher.interruptDispatch();
+    }
+
+    private void sendListenStartedEvent(DcsStreamRequestBody streamRequestBody, IResponseListener responseListener) {
+        String dialogRequestId = dialogRequestIdHandler.createActiveDialogRequestId();
+        String name = ApiConstants.Events.ListenStarted.NAME;
+        DialogRequestIdHeader header = new DialogRequestIdHeader(getNameSpace(), name, dialogRequestId);
+        Payload payload = new ListenStartedPayload(ListenStartedPayload.FORMAT);
+        Event event = new Event(header, payload);
+        messageSender.sendEvent(event, streamRequestBody, responseListener);
+    }
+
+    private void fireOnStartRecord() {
+        for (IVoiceInputListener listener : voiceInputListeners) {
+            listener.onStartRecord();
+        }
+    }
+
+    private void fireFinishRecord() {
+        for (IVoiceInputListener listener : voiceInputListeners) {
+            listener.onFinishRecord();
+        }
+    }
+
+    private void fireOnSucceed(int statusCode) {
+        for (IVoiceInputListener listener : voiceInputListeners) {
+            listener.onSucceed(statusCode);
+        }
+    }
+
+    private void fireOnFailed(String errorMessage) {
+        for (IVoiceInputListener listener : voiceInputListeners) {
+            listener.onFailed(errorMessage);
+        }
+    }
+
+    public void addVoiceInputListener(IVoiceInputListener listener) {
+        this.voiceInputListeners.add(listener);
+    }
+
+    public interface IVoiceInputListener {
+        /**
+         * 开始录音的回调
+         */
+        void onStartRecord();
+
+        /**
+         * 结束录音的回调
+         */
+        void onFinishRecord();
+
+        /**
+         * 录音-网络请求成功
+         *
+         * @param statusCode 网络返回状态码
+         */
+        void onSucceed(int statusCode);
+
+        /**
+         * 录音-网络请求失败
+         *
+         * @param errorMessage 错误信息
+         */
+        void onFailed(String errorMessage);
+    }
+}
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