Backup old PDF-AS configuration, create new

1 files changed, 128 insertions, 0 deletions

diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/utils/Zipper.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/utils/Zipper.java
new file mode 100644
index 00000000..b3e07d60
--- /dev/null
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/utils/Zipper.java
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.gui.utils;
+
+// Imports
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.URI;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Zipper/unzipper to backup/extract configuration
+ */
+public class Zipper {
+	/**
+	 * SLF4J Logger instance
+	 **/
+	private static final Logger log = LoggerFactory.getLogger(Zipper.class);
+
+	/**
+	 * Compresses the source path to Zip File output stream 
+	 * @param sourcePath
+	 * @param os
+	 * @throws IOException 
+	 */
+	public static void zip(String sourcePath, OutputStream os) throws IOException {
+		zip(sourcePath, os, false);
+	}
+
+		/**
+	 * Compresses the source path to Zip File output stream 
+	 * @param sourcePath
+	 * @param os
+	 * @param doDelete whether to delete content after compression
+	 * @throws IOException 
+	 */
+	public static void zip(String sourcePath, OutputStream os, boolean doDelete) throws IOException {
+		ZipOutputStream zos = new ZipOutputStream(os);
+		File dir = new File(sourcePath);
+		zip(dir, dir.toURI(), zos, doDelete);
+		zos.close();
+	}
+
+	private static void zip(File f, URI root, ZipOutputStream zos, boolean doDelete) throws IOException {
+		if (f.isDirectory()) {
+			File[] subDirs = f.listFiles();
+			for (File subDir : subDirs) {
+				zip(subDir, root, zos, doDelete);
+				if (doDelete && !f.toURI().equals(root))
+					subDir.delete();
+			}
+		} else {
+			URI path = root.relativize(f.toURI());
+			ZipEntry entry = new ZipEntry(path.toString());
+			zos.putNextEntry(entry);
+			byte[] buffer = new byte[1024];
+			int len;
+			BufferedInputStream is = new BufferedInputStream(new FileInputStream(f));
+			while ((len = is.read(buffer)) >= 0)
+				zos.write(buffer, 0, len);
+			is.close();
+			zos.closeEntry();
+			if (doDelete)
+				f.delete();
+		}
+	}
+
+	/**
+	 * Extracts Zip File input stream to target path 
+	 * @param is
+	 * @param targetPath
+	 * @throws IOException
+	 */
+	public static void unzip(InputStream is, String targetPath) throws IOException {
+		ZipInputStream zis = new ZipInputStream(is);
+		ZipEntry entry;
+		// while there are entries I process them
+		while ((entry = zis.getNextEntry()) != null) {
+			log.debug("entry: " + entry.getName() + ", "  //$NON-NLS-1$//$NON-NLS-2$
+					+ entry.getSize());
+			// consume all the data from this entry
+
+			if (entry.isDirectory()) {
+				log.debug("Extracting directory: " + entry.getName()); //$NON-NLS-1$
+				
+				File nDir = new File(targetPath + File.separator + entry.getName());
+				if(!nDir.exists()) {
+					if(!nDir.mkdir()) {
+						throw new IOException("Failed to create dir: " + entry.getName()); //$NON-NLS-1$
+					}
+				}
+				continue;
+			}
+			byte[] buffer = new byte[1024];
+			int len;
+			BufferedOutputStream out = new BufferedOutputStream(
+					new FileOutputStream(targetPath + File.separator + entry.getName()));
+			while ((len = zis.read(buffer)) >= 0)
+				out.write(buffer, 0, len);
+			
+			out.close();
+		}
+	}
+}