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Android Resource Proguard Core Lib
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package com.tencent.mm.util;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Collection;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.zip.CRC32;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;
public class FileOperation {
private static final int BUFFER = 8192;
public static boolean fileExists(String filePath) {
if (filePath == null) {
return false;
}
File file = new File(filePath);
if (file.exists()) return true;
return false;
}
public static boolean deleteFile(String filePath) {
if (filePath == null) {
return true;
}
File file = new File(filePath);
if (file.exists()) {
return file.delete();
}
return true;
}
public static long getlist(File f) {
if (f == null || (!f.exists())) {
return 0;
}
if (!f.isDirectory()) {
return 1;
}
long size;
File flist[] = f.listFiles();
size = flist.length;
for (int i = 0; i < flist.length; i++) {
if (flist[i].isDirectory()) {
size = size + getlist(flist[i]);
size--;
}
}
return size;
}
public static long getFileSizes(File f) {
long size = 0;
if (f.exists() && f.isFile()) {
FileInputStream fis = null;
try {
fis = new FileInputStream(f);
size = fis.available();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (fis != null) {
fis.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
return size;
}
public static boolean deleteDir(File file) {
if (file == null || (!file.exists())) {
return false;
}
if (file.isFile()) {
file.delete();
} else if (file.isDirectory()) {
File files[] = file.listFiles();
for (int i = 0; i < files.length; i++) {
deleteDir(files[i]);
}
}
file.delete();
return true;
}
public static void copyFileUsingStream(File source, File dest) throws IOException {
FileInputStream is = null;
FileOutputStream os = null;
File parent = dest.getParentFile();
if (parent != null && (!parent.exists())) {
parent.mkdirs();
}
try {
is = new FileInputStream(source);
os = new FileOutputStream(dest, false);
byte[] buffer = new byte[BUFFER];
int length;
while ((length = is.read(buffer)) > 0) {
os.write(buffer, 0, length);
}
} finally {
if (is != null) {
is.close();
}
if (os != null) {
os.close();
}
}
}
public static boolean checkDirectory(String dir) {
File dirObj = new File(dir);
deleteDir(dirObj);
if (!dirObj.exists()) {
dirObj.mkdirs();
}
return true;
}
public static File checkFile(String dir) {
deleteFile(dir);
File file = new File(dir);
try {
file.createNewFile();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return file;
}
@SuppressWarnings("rawtypes")
public static HashMap unZipAPk(String fileName, String filePath) throws IOException {
checkDirectory(filePath);
ZipFile zipFile = new ZipFile(fileName);
Enumeration emu = zipFile.entries();
HashMap compress = new HashMap<>();
try {
while (emu.hasMoreElements()) {
ZipEntry entry = (ZipEntry) emu.nextElement();
if (entry.isDirectory()) {
new File(filePath, entry.getName()).mkdirs();
continue;
}
BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(entry));
File file = new File(filePath + File.separator + entry.getName());
File parent = file.getParentFile();
if (parent != null && (!parent.exists())) {
parent.mkdirs();
}
//要用linux的斜杠
String compatibaleresult = entry.getName();
if (compatibaleresult.contains("\\")) {
compatibaleresult = compatibaleresult.replace("\\", "/");
}
compress.put(compatibaleresult, entry.getMethod());
FileOutputStream fos = new FileOutputStream(file);
BufferedOutputStream bos = new BufferedOutputStream(fos, BUFFER);
byte[] buf = new byte[BUFFER];
int len;
while ((len = bis.read(buf, 0, BUFFER)) != -1) {
fos.write(buf, 0, len);
}
bos.flush();
bos.close();
bis.close();
}
} finally {
zipFile.close();
}
return compress;
}
/**
* zip list of file
*
* @param resFileList file(dir) list
* @param baseFolder file(dir) base folder, we should calc relative path of resFile with base
* @param zipFile output zip file
* @param compressData compress data
* @throws IOException io exception
*/
public static void zipFiles(
Collection resFileList, File baseFolder, File zipFile, HashMap compressData)
throws IOException {
ZipOutputStream zipOut = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(zipFile), BUFFER));
for (File resFile : resFileList) {
if (resFile.exists()) {
if (resFile.getAbsolutePath().contains(baseFolder.getAbsolutePath())) {
String relativePath = baseFolder.toURI().relativize(resFile.getParentFile().toURI()).getPath();
// remove slash at end of relativePath
if (relativePath.length() > 1) {
relativePath = relativePath.substring(0, relativePath.length() - 1);
} else {
relativePath = "";
}
zipFile(resFile, zipOut, relativePath, compressData);
} else {
zipFile(resFile, zipOut, "", compressData);
}
}
}
zipOut.close();
}
private static void zipFile(
File resFile, ZipOutputStream zipout, String rootpath, HashMap compressData) throws IOException {
rootpath = rootpath + (rootpath.trim().length() == 0 ? "" : File.separator) + resFile.getName();
if (resFile.isDirectory()) {
File[] fileList = resFile.listFiles();
for (File file : fileList) {
zipFile(file, zipout, rootpath, compressData);
}
} else {
final byte[] fileContents = readContents(resFile);
//这里需要强转成linux格式，果然坑！！
if (rootpath.contains("\\")) {
rootpath = rootpath.replace("\\", "/");
}
if (!compressData.containsKey(rootpath)) {
System.err.printf(String.format("do not have the compress data path =%s in resource.asrc\n", rootpath));
//throw new IOException(String.format("do not have the compress data path=%s", rootpath));
return;
}
int compressMethod = compressData.get(rootpath);
ZipEntry entry = new ZipEntry(rootpath);
if (compressMethod == ZipEntry.DEFLATED) {
entry.setMethod(ZipEntry.DEFLATED);
} else {
entry.setMethod(ZipEntry.STORED);
entry.setSize(fileContents.length);
final CRC32 checksumCalculator = new CRC32();
checksumCalculator.update(fileContents);
entry.setCrc(checksumCalculator.getValue());
}
zipout.putNextEntry(entry);
zipout.write(fileContents);
zipout.flush();
zipout.closeEntry();
}
}
private static byte[] readContents(final File file) throws IOException {
final ByteArrayOutputStream output = new ByteArrayOutputStream();
final int bufferSize = 4096;
try {
final FileInputStream in = new FileInputStream(file);
final BufferedInputStream bIn = new BufferedInputStream(in);
int length;
byte[] buffer = new byte[bufferSize];
byte[] bufferCopy;
while ((length = bIn.read(buffer, 0, bufferSize)) != -1) {
bufferCopy = new byte[length];
System.arraycopy(buffer, 0, bufferCopy, 0, length);
output.write(bufferCopy);
}
bIn.close();
} finally {
output.close();
}
return output.toByteArray();
}
}