Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2010 Google Inc.
 *
 * 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.
 */

import android.util.Log;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.zip.ZipEntry;

import java.util.zip.ZipInputStream;
import java.lang.reflect.Method;

public class Main {
    public static boolean unzip(InputStream inputStream, String dest, boolean replaceIfExists) {

        final int BUFFER_SIZE = 4096;

        BufferedOutputStream bufferedOutputStream = null;

        boolean succeed = true;

        try {
            ZipInputStream zipInputStream = new ZipInputStream(new BufferedInputStream(inputStream));
            ZipEntry zipEntry;

            while ((zipEntry = zipInputStream.getNextEntry()) != null) {

                String zipEntryName = zipEntry.getName();

                //             if(!zipEntry.isDirectory()) {
                //                 File fil = new File(dest + zipEntryName);
                //                 fil.getParent()
                //             }

                // file exists ? delete ?
                File file2 = new File(dest + zipEntryName);

                if (file2.exists()) {
                    if (replaceIfExists) {

                        try {
                            boolean b = deleteDir(file2);
                            if (!b) {
                                Log.e("Haggle", "Unzip failed to delete " + dest + zipEntryName);
                            } else {
                                Log.d("Haggle", "Unzip deleted " + dest + zipEntryName);
                            }
                        } catch (Exception e) {
                            Log.e("Haggle", "Unzip failed to delete " + dest + zipEntryName, e);
                        }
                    }
                }

                // extract
                File file = new File(dest + zipEntryName);

                if (file.exists()) {

                } else {
                    if (zipEntry.isDirectory()) {
                        file.mkdirs();
                        chmod(file, 0755);

                    } else {

                        // create parent file folder if not exists yet
                        if (!file.getParentFile().exists()) {
                            file.getParentFile().mkdirs();
                            chmod(file.getParentFile(), 0755);
                        }

                        byte buffer[] = new byte[BUFFER_SIZE];
                        bufferedOutputStream = new BufferedOutputStream(new FileOutputStream(file), BUFFER_SIZE);
                        int count;

                        while ((count = zipInputStream.read(buffer, 0, BUFFER_SIZE)) != -1) {
                            bufferedOutputStream.write(buffer, 0, count);
                        }

                        bufferedOutputStream.flush();
                        bufferedOutputStream.close();
                    }
                }

                // enable standalone python
                if (file.getName().endsWith(".so") || file.getName().endsWith(".xml")
                        || file.getName().endsWith(".py") || file.getName().endsWith(".pyc")
                        || file.getName().endsWith(".pyo")) {
                    chmod(file, 0755);
                }

                Log.d("Haggle", "Unzip extracted " + dest + zipEntryName);
            }

            zipInputStream.close();

        } catch (FileNotFoundException e) {
            Log.e("Haggle", "Unzip error, file not found", e);
            succeed = false;
        } catch (Exception e) {
            Log.e("Haggle", "Unzip error: ", e);
            succeed = false;
        }

        return succeed;
    }

    public static boolean deleteDir(File dir) {
        try {
            if (dir.isDirectory()) {
                String[] children = dir.list();
                for (int i = 0; i < children.length; i++) {
                    boolean success = deleteDir(new File(dir, children[i]));
                    if (!success) {
                        return false;
                    }
                }
            }

            // The directory is now empty so delete it
            return dir.delete();

        } catch (Exception e) {
            Log.e("Haggle", "Failed to delete " + dir + " : " + e);
            return false;
        }
    }

    public static int chmod(File path, int mode) throws Exception {
        Class<?> fileUtils = Class.forName("android.os.FileUtils");
        Method setPermissions = fileUtils.getMethod("setPermissions", String.class, int.class, int.class,
                int.class);
        return (Integer) setPermissions.invoke(null, path.getAbsolutePath(), mode, -1, -1);
    }
}