Java tutorial
/* * NetcastHttpServer * Connect SDK * * Copyright (c) 2014 LG Electronics. * Created by Hyun Kook Khang on 19 Jan 2014 * * 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.connectsdk.device.netcast; import java.io.BufferedReader; import java.io.ByteArrayInputStream; import java.io.DataOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.io.UnsupportedEncodingException; import java.net.ServerSocket; import java.net.Socket; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.List; import java.util.Locale; import java.util.TimeZone; import javax.xml.parsers.ParserConfigurationException; import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParserFactory; import org.json.JSONException; import org.json.JSONObject; import org.xml.sax.SAXException; import android.util.Log; import com.connectsdk.core.ChannelInfo; import com.connectsdk.core.TextInputStatusInfo; import com.connectsdk.core.Util; import com.connectsdk.service.NetcastTVService; import com.connectsdk.service.capability.listeners.ResponseListener; import com.connectsdk.service.command.URLServiceSubscription; public class NetcastHttpServer { static final String UDAP_PATH_EVENT = "/udap/api/event"; NetcastTVService service; ServerSocket welcomeSocket; ResponseListener<String> textChangedListener; int port = -1; List<URLServiceSubscription<?>> subscriptions; boolean running = false; public NetcastHttpServer(NetcastTVService service, int port, ResponseListener<String> textChangedListener) { this.service = service; this.port = port; this.textChangedListener = textChangedListener; } public void start() { if (running) return; running = true; try { welcomeSocket = new ServerSocket(this.port); } catch (IOException ex) { ex.printStackTrace(); } while (running) { if (welcomeSocket == null || welcomeSocket.isClosed()) { stop(); break; } Socket connectionSocket = null; BufferedReader inFromClient = null; DataOutputStream outToClient = null; try { connectionSocket = welcomeSocket.accept(); } catch (IOException ex) { ex.printStackTrace(); // this socket may have been closed, so we'll stop stop(); return; } String str = null; int c; StringBuilder sb = new StringBuilder(); try { inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream())); while ((str = inFromClient.readLine()) != null) { if (str.equals("")) { break; } } while ((c = inFromClient.read()) != -1) { sb.append((char) c); String temp = sb.toString(); if (temp.endsWith("</envelope>")) break; } } catch (IOException ex) { ex.printStackTrace(); } String body = sb.toString(); Log.d("Connect SDK", "got message body: " + body); Calendar calendar = Calendar.getInstance(); SimpleDateFormat dateFormat = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss z", Locale.US); dateFormat.setTimeZone(TimeZone.getTimeZone("GMT")); String date = dateFormat.format(calendar.getTime()); String androidOSVersion = android.os.Build.VERSION.RELEASE; PrintWriter out = null; try { outToClient = new DataOutputStream(connectionSocket.getOutputStream()); out = new PrintWriter(outToClient); out.println("HTTP/1.1 200 OK"); out.println("Server: Android/" + androidOSVersion + " UDAP/2.0 ConnectSDK/1.2.1"); out.println("Cache-Control: no-store, no-cache, must-revalidate"); out.println("Date: " + date); out.println("Connection: Close"); out.println("Content-Length: 0"); out.flush(); } catch (IOException ex) { ex.printStackTrace(); } finally { try { inFromClient.close(); out.close(); outToClient.close(); connectionSocket.close(); } catch (IOException ex) { ex.printStackTrace(); } } SAXParserFactory saxParserFactory = SAXParserFactory.newInstance(); InputStream stream = null; try { stream = new ByteArrayInputStream(body.getBytes("UTF-8")); } catch (UnsupportedEncodingException ex) { ex.printStackTrace(); } NetcastPOSTRequestParser handler = new NetcastPOSTRequestParser(); SAXParser saxParser; try { saxParser = saxParserFactory.newSAXParser(); saxParser.parse(stream, handler); } catch (IOException ex) { ex.printStackTrace(); } catch (ParserConfigurationException e) { e.printStackTrace(); } catch (SAXException e) { e.printStackTrace(); } if (body.contains("ChannelChanged")) { ChannelInfo channel = NetcastChannelParser.parseRawChannelData(handler.getJSONObject()); Log.d("Connect SDK", "Channel Changed: " + channel.getNumber()); for (URLServiceSubscription<?> sub : subscriptions) { if (sub.getTarget().equalsIgnoreCase("ChannelChanged")) { for (int i = 0; i < sub.getListeners().size(); i++) { @SuppressWarnings("unchecked") ResponseListener<Object> listener = (ResponseListener<Object>) sub.getListeners() .get(i); Util.postSuccess(listener, channel); } } } } else if (body.contains("KeyboardVisible")) { boolean focused = false; TextInputStatusInfo keyboard = new TextInputStatusInfo(); keyboard.setRawData(handler.getJSONObject()); try { JSONObject currentWidget = (JSONObject) handler.getJSONObject().get("currentWidget"); focused = (Boolean) currentWidget.get("focus"); keyboard.setFocused(focused); } catch (JSONException e) { e.printStackTrace(); } Log.d("Connect SDK", "KeyboardFocused?: " + focused); for (URLServiceSubscription<?> sub : subscriptions) { if (sub.getTarget().equalsIgnoreCase("KeyboardVisible")) { for (int i = 0; i < sub.getListeners().size(); i++) { @SuppressWarnings("unchecked") ResponseListener<Object> listener = (ResponseListener<Object>) sub.getListeners() .get(i); Util.postSuccess(listener, keyboard); } } } } else if (body.contains("TextEdited")) { System.out.println("TextEdited"); String newValue = ""; try { newValue = handler.getJSONObject().getString("value"); } catch (JSONException ex) { ex.printStackTrace(); } Util.postSuccess(textChangedListener, newValue); } else if (body.contains("3DMode")) { try { String enabled = (String) handler.getJSONObject().get("value"); boolean bEnabled; if (enabled.equalsIgnoreCase("true")) bEnabled = true; else bEnabled = false; for (URLServiceSubscription<?> sub : subscriptions) { if (sub.getTarget().equalsIgnoreCase("3DMode")) { for (int i = 0; i < sub.getListeners().size(); i++) { @SuppressWarnings("unchecked") ResponseListener<Object> listener = (ResponseListener<Object>) sub.getListeners() .get(i); Util.postSuccess(listener, bEnabled); } } } } catch (JSONException e) { e.printStackTrace(); } } } } public void stop() { if (!running) return; if (welcomeSocket != null && !welcomeSocket.isClosed()) { try { welcomeSocket.close(); } catch (IOException ex) { ex.printStackTrace(); } } welcomeSocket = null; running = false; } public void setSubscriptions(List<URLServiceSubscription<?>> subscriptions) { this.subscriptions = subscriptions; } }