Java tutorial
/* * Copyright 2014 LavaJUG. * * 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 org.lavajug.streamcaster.server.web.controllers; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.util.LinkedList; import java.util.logging.Level; import java.util.logging.Logger; import org.json.simple.parser.ParseException; import org.lavajug.streamcaster.annotations.GET; import org.lavajug.streamcaster.annotations.POST; import org.lavajug.streamcaster.output.OutputException; import org.lavajug.streamcaster.server.Configuration; import org.lavajug.streamcaster.server.SystemUtils; import org.lavajug.streamcaster.server.web.Controller; import org.lavajug.streamcaster.server.web.SimpleMimeReader; import org.slf4j.LoggerFactory; /** * * @author Sylvain Desgrais <sylvain.desgrais@gmail.com> */ public class LiveStreamController extends Controller { private static final org.slf4j.Logger log = LoggerFactory.getLogger(LiveStreamController.class); /** * */ @GET("/") public void root() { redirect("/index"); } /** * */ @GET("/index") public void index() { LinkedList<String> devices = new LinkedList<>(); Path devicesPath = Paths.get("/dev"); try { for (Path device : Files.newDirectoryStream(devicesPath)) { if (device.getFileName().toString().startsWith("video")) { devices.addFirst(device.toAbsolutePath().toString()); } } } catch (IOException ex) { } context.addParameter("isWindows", SystemUtils.IS_OS_WINDOWS); context.addParameter("devices", devices); context.addParameter("section", "LIVE"); context.addParameter("current", Configuration.getCurrentProfile()); render(); } /** * */ @POST("/start") public void start() { try { String device = request.postParam("device"); Configuration.getOutputManager().start(device); } catch (OutputException ex) { log.error(ex.getLocalizedMessage()); } redirect("/index"); } /** * */ @GET("/stop") public void stop() { Configuration.getOutputManager().stop(); redirect("/index"); } /** * */ @GET("/config/download") public void download() { response.header("Content-Type", "application/json"); String json = Configuration.serialize(); response.content(json).end(); } /** * */ @POST("/config/upload") public void upload() { SimpleMimeReader reader = new SimpleMimeReader(new ByteArrayInputStream(request.bodyAsBytes())); ByteArrayOutputStream baos = new ByteArrayOutputStream(); while (reader.nextPart()) { try { Configuration.load(reader.getPartDataAsString()); } catch (ParseException ex) { Logger.getLogger(LiveStreamController.class.getName()).log(Level.SEVERE, null, ex); } } redirect("/index"); } }