Diff: dcs-sdk-java-master/app/src/main/java/com/baidu/duer/dcs/framework/DcsFramework.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/framework/DcsFramework.java	Tue Jul 18 16:34:48 2017 +0800
@@ -0,0 +1,230 @@
+/*
+ * 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.framework;
+
+import com.baidu.duer.dcs.devicemodule.system.HandleDirectiveException;
+import com.baidu.duer.dcs.devicemodule.system.SystemDeviceModule;
+import com.baidu.duer.dcs.framework.DcsResponseDispatcher.IDcsResponseHandler;
+import com.baidu.duer.dcs.framework.message.ClientContext;
+import com.baidu.duer.dcs.framework.message.DcsRequestBody;
+import com.baidu.duer.dcs.framework.message.DcsResponseBody;
+import com.baidu.duer.dcs.framework.message.DcsStreamRequestBody;
+import com.baidu.duer.dcs.framework.message.Directive;
+import com.baidu.duer.dcs.framework.message.Event;
+import com.baidu.duer.dcs.systeminterface.IPlatformFactory;
+import com.baidu.duer.dcs.util.LogUtil;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+/**
+ * dcs业务处理框架，用于分发指令(directives)、发送事件(events)和创建deviceModule等
+ * <p>
+ * Created by shenguanghao、wuruisheng on 2017/5/31.
+ */
+public class DcsFramework {
+    private static final String TAG = DcsFramework.class.getSimpleName();
+    // 管理平台相关的对象
+    private final IPlatformFactory platformFactory;
+    // 管理deviceModules
+    private final HashMap<String, BaseDeviceModule> dispatchDeviceModules;
+    // 创建会话Id
+    private final DialogRequestIdHandler dialogRequestIdHandler;
+    // 基于通道活跃状态和优先级进行mediaPlayer调度
+    private final BaseMultiChannelMediaPlayer multiChannelMediaPlayer;
+    // 创建deviceModule工厂
+    private DeviceModuleFactory deviceModuleFactory;
+    // 和服务器端保持长连接、发送events和接收directives和维持心跳
+    private DcsClient dcsClient;
+    // 用于DeviceModules发送events
+    private IMessageSender messageSender;
+    // 服务器端返回response调度中心
+    private DcsResponseDispatcher dcsResponseDispatcher;
+
+    public DcsFramework(IPlatformFactory platformFactory) {
+        this.platformFactory = platformFactory;
+        dispatchDeviceModules = new HashMap<>();
+        dialogRequestIdHandler = new DialogRequestIdHandler();
+        multiChannelMediaPlayer = new PauseStrategyMultiChannelMediaPlayer(platformFactory);
+
+        createMessageSender();
+        createDcsClient();
+        createDeviceModuleFactory();
+    }
+
+    public void release() {
+        for (BaseDeviceModule deviceModule : dispatchDeviceModules.values()) {
+            deviceModule.release();
+        }
+        dcsClient.release();
+        dcsResponseDispatcher.release();
+    }
+
+    public DeviceModuleFactory getDeviceModuleFactory() {
+        return deviceModuleFactory;
+    }
+
+    private ArrayList<ClientContext> clientContexts() {
+        ArrayList<ClientContext> clientContexts = new ArrayList<>();
+        for (BaseDeviceModule deviceModule : dispatchDeviceModules.values()) {
+            ClientContext clientContext = deviceModule.clientContext();
+            if (clientContext != null) {
+                clientContexts.add(clientContext);
+            }
+        }
+
+        return clientContexts;
+    }
+
+    private void handleDirective(Directive directive) {
+        String namespace = directive.header.getNamespace();
+        try {
+            BaseDeviceModule deviceModule = dispatchDeviceModules.get(namespace);
+            if (deviceModule != null) {
+                deviceModule.handleDirective(directive);
+            } else {
+                String message = "No device to handle the directive";
+                throw new HandleDirectiveException(
+                        HandleDirectiveException.ExceptionType.UNSUPPORTED_OPERATION, message);
+            }
+        } catch (HandleDirectiveException exception) {
+            getSystemDeviceModule().sendExceptionEncounteredEvent(directive.rawMessage,
+                    exception.getExceptionType(), exception.getMessage());
+        } catch (Exception exception) {
+            getSystemDeviceModule().sendExceptionEncounteredEvent(directive.rawMessage,
+                    HandleDirectiveException.ExceptionType.INTERNAL_ERROR,
+                    exception.getMessage()
+            );
+        }
+    }
+
+    private void createDcsClient() {
+        IDcsResponseHandler responseHandler = new IDcsResponseHandler() {
+            @Override
+            public void onResponse(final DcsResponseBody responseBody) {
+                platformFactory.getMainHandler().post(new Runnable() {
+                    @Override
+                    public void run() {
+                        LogUtil.d(TAG, "DcsResponseBodyEnqueue-handleDirective-MSG:"
+                                + responseBody.getDirective().rawMessage);
+                        handleDirective(responseBody.getDirective());
+                    }
+                });
+            }
+
+            @Override
+            public void onParseFailed(String unParsedMessage) {
+                LogUtil.d(TAG, "DcsResponseBodyEnqueue-handleDirective-onParseFailed");
+                String message = "parse failed";
+                getSystemDeviceModule().sendExceptionEncounteredEvent(unParsedMessage,
+                        HandleDirectiveException.ExceptionType.UNEXPECTED_INFORMATION_RECEIVED,
+                        message);
+            }
+        };
+
+        dcsResponseDispatcher = new DcsResponseDispatcher(dialogRequestIdHandler, responseHandler);
+        dcsClient = new DcsClient(dcsResponseDispatcher, new DcsClient.IDcsClientListener() {
+            @Override
+            public void onConnected() {
+                LogUtil.d(TAG, "onConnected");
+                getSystemDeviceModule().sendSynchronizeStateEvent();
+            }
+
+            @Override
+            public void onUnconnected() {
+                LogUtil.d(TAG, "onUnconnected");
+            }
+        });
+        dcsClient.startConnect();
+    }
+
+    private void createMessageSender() {
+        messageSender = new IMessageSender() {
+            @Override
+            public void sendEvent(Event event, DcsStreamRequestBody streamRequestBody,
+                                  IResponseListener responseListener) {
+                DcsRequestBody requestBody = new DcsRequestBody(event);
+                requestBody.setClientContext(clientContexts());
+                dcsClient.sendRequest(requestBody, streamRequestBody, responseListener);
+            }
+
+            @Override
+            public void sendEvent(Event event, IResponseListener responseListener) {
+                sendEventRequest(event, null, responseListener);
+            }
+
+            @Override
+            public void sendEvent(Event event) {
+                sendEventRequest(event, null, null);
+            }
+
+            @Override
+            public void sentEventWithClientContext(Event event, IResponseListener responseListener) {
+                sendEventRequest(event, clientContexts(), responseListener);
+            }
+        };
+    }
+
+    private void sendEventRequest(Event event,
+                                  ArrayList<ClientContext> clientContexts,
+                                  IResponseListener responseListener) {
+        DcsRequestBody dcsRequestBody = new DcsRequestBody(event);
+        dcsRequestBody.setClientContext(clientContexts);
+        dcsClient.sendRequest(dcsRequestBody, responseListener);
+    }
+
+    private void createDeviceModuleFactory() {
+        deviceModuleFactory = new DeviceModuleFactory(new DeviceModuleFactory.IDeviceModuleHandler() {
+            @Override
+            public IPlatformFactory getPlatformFactory() {
+                return platformFactory;
+            }
+
+            @Override
+            public DialogRequestIdHandler getDialogRequestIdHandler() {
+                return dialogRequestIdHandler;
+            }
+
+            @Override
+            public IMessageSender getMessageSender() {
+                return messageSender;
+            }
+
+            @Override
+            public BaseMultiChannelMediaPlayer getMultiChannelMediaPlayer() {
+                return multiChannelMediaPlayer;
+            }
+
+            @Override
+            public void addDeviceModule(BaseDeviceModule deviceModule) {
+                DcsFramework.this.addDeviceModule(deviceModule);
+            }
+
+            @Override
+            public DcsResponseDispatcher getResponseDispatcher() {
+                return dcsResponseDispatcher;
+            }
+        });
+    }
+
+    private void addDeviceModule(BaseDeviceModule deviceModule) {
+        dispatchDeviceModules.put(deviceModule.getNameSpace(), deviceModule);
+    }
+
+    private SystemDeviceModule getSystemDeviceModule() {
+        return deviceModuleFactory.getSystemDeviceModule();
+    }
+}
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