@Override @SuppressWarnings("unchecked") public boolean isValid() { for (Enumeration<? extends ZipEntry> e = zip.entries(); e.hasMoreElements(); ) { ZipEntry testEntry = e.nextElement(); if (testEntry.getName().matches(".*\\.mcr$")) { return true; } } return false; }
public List<File> unpack(File archiveFile, File targetDir) throws ArchiveException { // 首先判断下对应的目标文件是否存在,如存在则执行删除 if (false == archiveFile.exists()) { throw new ArchiveException(String.format("[%s] not exist", archiveFile.getAbsolutePath())); } if (false == targetDir.exists() && false == NioUtils.create(targetDir, false, 3)) { throw new ArchiveException( String.format("[%s] not exist and create failed", targetDir.getAbsolutePath())); } List<File> result = new ArrayList<File>(); ZipFile zipFile = null; try { zipFile = new ZipFile(archiveFile); Enumeration entries = zipFile.entries(); while (entries.hasMoreElements()) { // entry ZipEntry entry = (ZipEntry) entries.nextElement(); String entryName = entry.getName(); // target File targetFile = new File(targetDir, entryName); NioUtils.create(targetFile.getParentFile(), false, 3); // 尝试创建父路径 InputStream input = null; OutputStream output = null; try { output = new FileOutputStream(targetFile); input = zipFile.getInputStream(entry); NioUtils.copy(input, output); } finally { IOUtils.closeQuietly(input); IOUtils.closeQuietly(output); } result.add(targetFile); } } catch (Exception e) { throw new ArchiveException(e); } finally { if (zipFile != null) { try { zipFile.close(); } catch (IOException ex) { } } } return result; }
/** * Get the input stream for a chunk file. * * @param name * @return * @throws IOException * @throws DataException */ @Override @SuppressWarnings("unchecked") protected InputStream getInputStream(String name, String worldname) throws IOException, DataException { // Detect subfolder for the world's files if (folder != null) { if (!folder.equals("")) { name = folder + "/" + name; } } else { Pattern pattern = Pattern.compile(".*\\.mcr$"); // World pattern Pattern worldPattern = Pattern.compile(worldname + "\\$"); for (Enumeration<? extends ZipEntry> e = zip.entries(); e.hasMoreElements(); ) { ZipEntry testEntry = (ZipEntry) e.nextElement(); // Check for world if (worldPattern.matcher(worldname).matches()) { // Check for file if (pattern.matcher(testEntry.getName()).matches()) { folder = testEntry.getName().substring(0, testEntry.getName().lastIndexOf("/")); name = folder + "/" + name; break; } } } // Check if world is found if (folder == null) { throw new MissingWorldException("Target world is not present in ZIP.", worldname); } } ZipEntry entry = getEntry(name); if (entry == null) { throw new MissingChunkException(); } try { return zip.getInputStream(entry); } catch (ZipException e) { throw new IOException("Failed to read " + name + " in ZIP"); } }