Java tutorial
/* * Copyright (C) 2011-2012 GUIGUI Simon, fyhertz@gmail.com * * This file is part of Spydroid (http://code.google.com/p/spydroid-ipcamera/) * * Spydroid is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This source code is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this source code; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ package com.baqr.baqrcam.http; import static com.baqr.baqrcam.http.TinyHttpServer.TAG; import java.io.IOException; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.lang.reflect.Field; import java.util.Locale; import org.apache.http.HttpException; import org.apache.http.HttpRequest; import org.apache.http.HttpResponse; import org.apache.http.HttpStatus; import org.apache.http.MethodNotSupportedException; import org.apache.http.entity.ContentProducer; import org.apache.http.entity.EntityTemplate; import org.apache.http.protocol.HttpContext; import org.apache.http.protocol.HttpRequestHandler; import android.util.Log; /** * * The purpose of this module is to make internationalization of the interface that * your app is going to serve easier by using the standard workflow used in Android. * * You just have to add strings in string.xml (or some other file containing string resources) * and you will then be able to access those on the client side. * */ public class ModInternationalization implements HttpRequestHandler { /** Client side file name. */ public static final String PATTERN = "/strings.json"; /** Prefix for strings. */ public static final String PREFIX = "web_"; private String mJSON = "{}"; public ModInternationalization(TinyHttpServer server) { super(); StringBuilder builder = new StringBuilder(); try { // Retrieves R.string Class<?> String = Class.forName(server.mContext.getPackageName() + ".R$string"); Field[] fields = String.getFields(); // Constructs a JSON with all members starting with PREFIX builder.append("{\""); for (int i = 0; i < fields.length; i++) { if (fields[i].getName().startsWith(PREFIX)) { builder.append(fields[i].getName()); builder.append("\":\""); builder.append((String) server.getString(fields[i].getInt(null))); builder.append("\",\""); } } if (builder.length() > 2) { builder.setLength(builder.length() - 2); } else { builder.setLength(builder.length() - 1); } builder.append("}"); mJSON = builder.toString(); } catch (Exception e) { Log.e(TAG, "Little problem with ModInternationalization !"); e.printStackTrace(); } } public void handle(final HttpRequest request, final HttpResponse response, final HttpContext context) throws HttpException, IOException { final String method = request.getRequestLine().getMethod().toUpperCase(Locale.ENGLISH); if (!method.equals("GET") && !method.equals("HEAD")) { throw new MethodNotSupportedException(method + " method not supported"); } final EntityTemplate body = new EntityTemplate(new ContentProducer() { public void writeTo(final OutputStream outstream) throws IOException { OutputStreamWriter writer = new OutputStreamWriter(outstream, "UTF-8"); writer.write(mJSON); writer.flush(); } }); response.setStatusCode(HttpStatus.SC_OK); body.setContentType("text/json; charset=UTF-8"); response.setEntity(body); } }