From 301e44ecbb70dc4ee5f384f46355cf182dc89562 Mon Sep 17 00:00:00 2001 From: ulrich <undisclosed> Date: Tue, 01 Aug 2017 12:34:15 +0000 Subject: [PATCH] Redundanz entfernt --- src/java/de/uhilger/filecms/api/FileMgr.java | 75 +++++++++++++++++++++++++++++++++++-- 1 files changed, 71 insertions(+), 4 deletions(-) diff --git a/src/java/de/uhilger/filecms/api/FileMgr.java b/src/java/de/uhilger/filecms/api/FileMgr.java index c2e2f8e..f45497f 100644 --- a/src/java/de/uhilger/filecms/api/FileMgr.java +++ b/src/java/de/uhilger/filecms/api/FileMgr.java @@ -18,30 +18,33 @@ package de.uhilger.filecms.api; +import de.uhilger.filecms.data.Bild; import de.uhilger.filecms.data.FileRef; -import de.uhilger.filecms.web.Initialiser; -import de.uhilger.wbx.Bild; import java.awt.Container; import java.awt.Image; import java.awt.MediaTracker; import java.awt.Toolkit; import java.io.File; import java.io.FileNotFoundException; +import java.io.FileOutputStream; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; +import java.io.InputStream; import java.io.Reader; import java.security.Principal; import java.util.ArrayList; +import java.util.Enumeration; import java.util.Iterator; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; +import java.util.zip.ZipEntry; +import java.util.zip.ZipFile; import org.apache.commons.io.FileUtils; /** - * - * @author ulrich + * Methoden zur Verwaltung von Dateien */ public class FileMgr extends Api { private static final Logger logger = Logger.getLogger(FileMgr.class.getName()); @@ -359,6 +362,70 @@ return "ok"; } + + public String extractZipfile(String relPath, String filename) { + String result; + try { + File targetDir = getTargetDir(relPath); + File archive = new File(targetDir, filename); + if(extract(archive)) { + result = "ok"; + } else { + result = "error while extracting"; + } + } catch(Exception ex) { + result = ex.getLocalizedMessage(); + logger.log(Level.SEVERE, ex.getLocalizedMessage(), ex); + } + return result; + } + + /** + * extract a given ZIP archive to the folder respective archive resides in + * @param archive the archive to extract + * @throws Exception + */ + private boolean extract(File archive) throws Exception { + ZipFile zipfile = new ZipFile(archive); + Enumeration en = zipfile.entries(); + while(en.hasMoreElements()) { + ZipEntry zipentry = (ZipEntry) en.nextElement(); + unzip(zipfile, zipentry, archive.getParent()); + } + zipfile.close(); + return true; + } + + /** + * unzip a given entry of a given zip file to a given location + * @param zipfile the zip file to read an entry from + * @param zipentry the zip entry to read + * @param destPath the path to the destination location for the extracted content + * @throws IOException + */ + private void unzip(ZipFile zipfile, ZipEntry zipentry, String destPath) throws IOException { + byte buf[] = new byte[1024]; + InputStream is = zipfile.getInputStream(zipentry); + String outFileName = destPath + File.separator + zipentry.getName(); + File file = new File(outFileName); + if(!zipentry.isDirectory()) { + file.getParentFile().mkdirs(); + if(!file.exists()) + file.createNewFile(); + FileOutputStream fos = new FileOutputStream(file); + int i = is.read(buf, 0, 1024); + while(i > -1) { + fos.write(buf, 0, i); + i = is.read(buf, 0, 1024); + } + fos.close(); + is.close(); + } else { + file.mkdirs(); + } + } + + /* ---- Hilfsfunktionen ---- */ -- Gitblit v1.9.3