From af99308ac8192fd47be8f6ec030f973a0bf23072 Mon Sep 17 00:00:00 2001 From: ulrich <undisclosed> Date: Tue, 03 Apr 2018 08:35:13 +0000 Subject: [PATCH] Packen von Ordnern hergestellt --- src/java/de/uhilger/filecms/api/FileMgr.java | 93 ++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 93 insertions(+), 0 deletions(-) diff --git a/src/java/de/uhilger/filecms/api/FileMgr.java b/src/java/de/uhilger/filecms/api/FileMgr.java index 2b8b985..32c3a54 100644 --- a/src/java/de/uhilger/filecms/api/FileMgr.java +++ b/src/java/de/uhilger/filecms/api/FileMgr.java @@ -23,6 +23,7 @@ import de.uhilger.filecms.pub.FileNameComparator; import de.uhilger.wbx.Bild; import java.io.File; +import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.FileReader; @@ -38,8 +39,11 @@ import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; +import java.util.zip.Adler32; +import java.util.zip.CheckedOutputStream; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; +import java.util.zip.ZipOutputStream; import net.coobird.thumbnailator.Thumbnails; import org.apache.commons.io.FileUtils; @@ -447,6 +451,9 @@ return "Pfad micht erlaubt."; } } + + /* --------- ZIP entpacken ---------------- */ + public String extractZipfile(String relPath, String filename) { String result = null; if (!relPath.startsWith(".")) { @@ -511,6 +518,92 @@ } } + /* ------------- Ornder als ZIP packen --------------- */ + + public String packFolder(String relPath) { + if (!relPath.startsWith(".")) { + try { + File targetDir = getTargetDir(relPath); + File parentDir = targetDir.getParentFile(); + StringBuffer fname = new StringBuffer(); + fname.append(targetDir.getName()); + fname.append(".zip"); + File archiveFile = new File(parentDir, fname.toString()); + FileRef folderToPack = new FileRef(targetDir.getAbsolutePath()); + FileRef archive = new FileRef(archiveFile.getAbsolutePath()); + pack(folderToPack, archive); + return "ok"; + } catch(Exception ex) { + String result = ex.getLocalizedMessage(); + logger.log(Level.SEVERE, result, ex); + return result; + } + } else { + return "Falsche relative Pfadangabe"; + } + } + + /** + * pack the contents of a given folder into a new ZIP compressed archive + * @param folder the folder to pack + * @param archive the archive to create from the given files + * @throws Exception + */ + private boolean pack(FileRef folder, FileRef archive) throws Exception { + File file = new File(archive.getAbsolutePath()); + FileOutputStream fos = new FileOutputStream(file); + CheckedOutputStream checksum = new CheckedOutputStream(fos, new Adler32()); + ZipOutputStream zos = new ZipOutputStream(checksum); + pack(zos, folder.getAbsolutePath(), ""); + zos.flush(); + zos.finish(); + zos.close(); + fos.flush(); + fos.close(); + return true; + } + + /** + * go through the given file structure recursively + * @param zipFile the ZIP file to write to + * @param srcDir the directory to pack during this cycle + * @param subDir the subdirectory to append to names of file entries inside the archive + * @throws IOException + */ + private void pack(ZipOutputStream zipFile, String srcDir, String subDir) throws IOException { + File[] files = new File(srcDir).listFiles(); + for(int i = 0; i < files.length; i++) { + if(files[i].isDirectory()) { + pack(zipFile, files[i].getAbsolutePath(), subDir + File.separator + files[i].getName()); + } + else { + packFile(zipFile, subDir, files[i]); + } + } + } + + /** + * pack a given file + * @param zipFile the ZIP archive to pack to + * @param dir the directory name to append to name of file entry inside archive + * @param file the file to pack + * @throws IOException + */ + private void packFile(ZipOutputStream zipFile, String dir, File file) throws IOException + { + FileInputStream fileinputstream = new FileInputStream(file); + byte buf[] = new byte[fileinputstream.available()]; + fileinputstream.read(buf); + String dirWithSlashes = dir.replace('\\', '/'); + //System.out.println("zipping " + dirWithSlashes + "/" + file.getName()); + ZipEntry ze = new ZipEntry(dirWithSlashes + "/" + file.getName()); + ze.setMethod(ZipEntry.DEFLATED); + zipFile.putNextEntry(ze); + zipFile.write(buf, 0, buf.length); + zipFile.closeEntry(); + fileinputstream.close(); + } + /* ---- Hilfsfunktionen ---- */ -- Gitblit v1.9.3