/WebAccess/src/com/ideal/webaccess/Unzipper.java
Java | 93 lines | 66 code | 9 blank | 18 comment | 9 complexity | 8a0a29de47e908fc863707e9f7273bab MD5 | raw file
1/* 2 * Copyright (C) 2010 The IDEAL Group 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.ideal.webaccess; 18 19import android.os.Environment; 20 21import java.io.File; 22import java.io.FileOutputStream; 23import java.io.IOException; 24import java.io.InputStream; 25import java.util.zip.ZipEntry; 26import java.util.zip.ZipInputStream; 27 28/** 29 * Utility class for unzipping the JavaScript files. 30 */ 31public class Unzipper { 32 public static boolean unzip(InputStream stream) { 33 String rootDirectory = Environment.getExternalStorageDirectory() + "/"; 34 FileOutputStream out; 35 byte buf[] = new byte[16384]; 36 try { 37 ZipInputStream zis = new ZipInputStream(stream); 38 ZipEntry entry = zis.getNextEntry(); 39 while (entry != null) { 40 if (entry.isDirectory()) { 41 File newDir = new File(rootDirectory + entry.getName()); 42 newDir.mkdir(); 43 } else { 44 String name = entry.getName(); 45 File outputFile = new File(rootDirectory + name); 46 String outputPath = outputFile.getCanonicalPath(); 47 name = outputPath.substring(outputPath.lastIndexOf("/") + 1); 48 outputPath = outputPath.substring(0, outputPath.lastIndexOf("/")); 49 File outputDir = new File(outputPath); 50 outputDir.mkdirs(); 51 outputFile = new File(outputPath, name); 52 outputFile.createNewFile(); 53 out = new FileOutputStream(outputFile); 54 55 int numread = 0; 56 do { 57 numread = zis.read(buf); 58 if (numread <= 0) { 59 break; 60 } else { 61 out.write(buf, 0, numread); 62 } 63 } while (true); 64 out.close(); 65 } 66 entry = zis.getNextEntry(); 67 } 68 return true; 69 } catch (IOException e) { 70 e.printStackTrace(); 71 return false; 72 } 73 74 } 75 76 public static boolean doDataCheckAndUnzip(InputStream dataSourceStream) { 77 final String basePath = Environment.getExternalStorageDirectory() + "/ideal-webaccess/js/"; 78 79 final String[] dataFiles = { 80 "clc-domUtils.js", "ideal-dom.js", "ideal-globals.js", "ideal-interface.js", 81 "ideal-keyhandler.js", "ideal-lens.js", "ideal-loader.js", 82 "ideal-loader_webreader.js", "ideal-nav.js", "ideal-styler.js", "ideal-tts.js", 83 "ideal-webaccess.user.js", "sitescripts/googlesearch/mgws.js" 84 }; 85 86 for (int i = 0; i < dataFiles.length; i++) { 87 if (!(new File(basePath + dataFiles[i])).exists()) { 88 return unzip(dataSourceStream); 89 } 90 } 91 return true; 92 } 93}