Java tutorial
package angel.zhuoxiu.library.pusher; /* Copyright (C) 2011 Emory Myers * * 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. * * Contributors: Martin Linkhorst */ import java.net.URI; import java.net.URISyntaxException; import org.json.JSONException; import org.json.JSONObject; import android.util.Log; import angel.zhuoxiu.library.pusher.websocket.WebSocket; import angel.zhuoxiu.library.pusher.websocket.WebSocketConnection; import angel.zhuoxiu.library.pusher.websocket.WebSocketEventHandler; import angel.zhuoxiu.library.pusher.websocket.WebSocketException; import angel.zhuoxiu.library.pusher.websocket.WebSocketMessage; class PusherConnection { private static final String LOG_TAG = "Pusher"; public Pusher pusher; public WebSocket mWebSocket; public PusherConnection(Pusher pusher) { this.pusher = pusher; } public void connect() { try { URI url = new URI(pusher.getUrl()); Log.d(LOG_TAG, "Connecting to " + url.toString()); mWebSocket = new WebSocketConnection(url); mWebSocket.setEventHandler(new WebSocketEventHandler() { @Override public void onOpen() { Log.d(LOG_TAG, "Successfully opened Websocket"); } @Override public void onMessage(WebSocketMessage message) { Log.d(LOG_TAG, "Received from Websocket " + message.getText()); try { JSONObject parsed = new JSONObject(message.getText()); String eventName = parsed.getString("event"); String channelName = parsed.optString("channel", null); String eventData = parsed.getString("data"); if (eventName.equals(Pusher.PUSHER_EVENT_CONNECTION_ESTABLISHED)) { JSONObject parsedEventData = new JSONObject(eventData); String socketId = parsedEventData.getString("socket_id"); pusher.onConnected(socketId); } else { pusher.dispatchEvents(eventName, eventData, channelName); } } catch (JSONException e) { e.printStackTrace(); } } @Override public void onClose() { Log.d(LOG_TAG, "Successfully closed Websocket"); } }); mWebSocket.connect(); } catch (URISyntaxException e) { e.printStackTrace(); } catch (WebSocketException e) { e.printStackTrace(); } } public void disconnect() { if (mWebSocket != null) { try { mWebSocket.close(); } catch (WebSocketException e) { e.printStackTrace(); } } pusher.onDisconnected(); } public void send(String eventName, JSONObject eventData, String channelName) { if (mWebSocket == null) return; if (mWebSocket.isConnected()) { try { JSONObject message = new JSONObject(); message.put("event", eventName); message.put("data", eventData); if (channelName != null) { message.put("channel", channelName); } mWebSocket.send(message.toString()); Log.d(LOG_TAG, "sent message " + message.toString()); } catch (JSONException e) { e.printStackTrace(); } catch (WebSocketException e) { e.printStackTrace(); } } } }