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+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+package helper;
+
+// __________ Imports __________
+
+// exceptions
+import java.io.File;
+import java.net.MalformedURLException;
+import java.util.ArrayList;
+import java.util.Iterator;
+
+
+/**
+ * It collects some static helper functions to handle URLs.
+ * Sometimes it's necessary to convert URL from/to system paths.
+ * Or from string to strutural notations (e.g. com.sun.star.util.URL).
+ * And sometimes java had another notation then the office it has.
+ *
+ */
+public class URLHelper
+{
+
+
+ /**
+ * Because the office need URLs for loading/saving documents
+ * we must convert used system paths.
+ * And java use another notation for file URLs ... correct it.
+ *
+ * @param aSystemPath
+ * represent the file in system notation
+ *
+ * @return [String]
+ * a file url which represent the given system path
+ */
+ public static String getFileURLFromSystemPath( File aSystemPath )
+ {
+ String sFileURL = null;
+ try
+ {
+ sFileURL = aSystemPath.toURI().toURL().toString();
+ }
+ catch( MalformedURLException exWrong )
+ {
+ }
+
+ // problem of java: file URL's are coded with 1 slash instead of 2 or 3 ones!
+ // => correct this problem first, otherwise office can't use these URL's
+ if(
+ (sFileURL != null ) &&
+ sFileURL.startsWith("file:/") &&
+ !sFileURL.startsWith("file://")
+ )
+ {
+ StringBuffer sWorkBuffer = new StringBuffer(sFileURL);
+ sWorkBuffer.insert(6,"//");
+ sFileURL = sWorkBuffer.toString();
+ }
+
+ return sFileURL;
+ }
+
+
+
+ /**
+ * The same as getFileURLFromSystemPath() before but uses string parameter instead
+ * of a File type. It exists to suppress converting of necessary parameters in the
+ * outside code. But of course getFileURLFromSystemPath(File) will be a little bit faster
+ * then this method ...
+ *
+ * @param sSystemPath
+ * represent the file in system notation
+ *
+ * @return [String]
+ * a file url which represent the given system path
+ */
+ public static String getFileURLFromSystemPath( String sSystemPath )
+ {
+ return getFileURLFromSystemPath(new File(sSystemPath));
+ }
+
+
+
+ /**
+ * Return a name list of all available files of a directory.
+ * We filter pure sub directories names. All other files
+ * are returned as full qualified URL strings. So they can be
+ * used for further purposes. One parameter define the start directory,
+ * another one describe the url protocol, which the return URL names should have.
+ *
+ * @param sStartDir
+ * the start directory, which should include all test files
+ *
+ * @return [Vector]
+ * a filtered list of java File objects of all available files of the start dir
+ * and all accessible sub directories.
+ */
+ public static ArrayList<File> getSystemFilesFromDir(String sStartDir)
+ {
+ File aRoot = new File(sStartDir);
+
+ if (! aRoot.exists())
+ return null;
+
+ if (! aRoot.isDirectory())
+ return null;
+
+ File[] lAllFiles = aRoot.listFiles();
+ if (lAllFiles == null )
+ return null;
+
+ ArrayList<File> lFilteredFiles = new ArrayList<File>(lAllFiles.length);
+
+ for (int i=0; i<lAllFiles.length; ++i)
+ {
+ if (lAllFiles[i].isFile())
+ lFilteredFiles.add(lAllFiles[i]);
+ else
+ if (lAllFiles[i].isDirectory())
+ {
+ // recursion!
+ ArrayList<File> lSubFiles = URLHelper.getSystemFilesFromDir(lAllFiles[i].getPath());
+ if (lSubFiles != null)
+ {
+ Iterator<File> aSnapshot = lSubFiles.iterator();
+ while (aSnapshot.hasNext()) {
+ lFilteredFiles.add(aSnapshot.next());
+ }
+ }
+ }
+ }
+
+ return lFilteredFiles;
+ }
+}