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| | | /**
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| | | * Common file utilities.
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| | | * |
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| | | *
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| | | * @author James Moger
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| | | * |
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| | | *
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| | | */
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| | | public class FileUtils {
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| | | /** 1024 (number of bytes in one kilobyte) */
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| | | public static final int KB = 1024;
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| | | /**
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| | | * Returns an int from a string representation of a file size.
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| | | * e.g. 50m = 50 megabytes
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| | | * |
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| | | *
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| | | * @param aString
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| | | * @param defaultValue
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| | | * @return an int value or the defaultValue if aString can not be parsed
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| | | public static int convertSizeToInt(String aString, int defaultValue) {
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| | | return (int) convertSizeToLong(aString, defaultValue);
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| | | }
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| | | |
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| | | /**
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| | | * Returns a long from a string representation of a file size.
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| | | * e.g. 50m = 50 megabytes
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| | | * |
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| | | *
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| | | * @param aString
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| | | * @param defaultValue
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| | | * @return a long value or the defaultValue if aString can not be parsed
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| | | */
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| | | public static long convertSizeToLong(String aString, long defaultValue) {
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| | | // trim string and remove all spaces |
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| | | // trim string and remove all spaces
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| | | aString = aString.toLowerCase().trim();
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| | | StringBuilder sb = new StringBuilder();
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| | | for (String a : aString.split(" ")) {
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| | | sb.append(a);
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| | | }
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| | | aString = sb.toString();
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| | | |
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| | | // identify value and unit
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| | | int idx = 0;
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| | | int len = aString.length();
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| | | }
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| | | return defaultValue;
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| | | }
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| | | |
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| | |
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| | | /**
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| | | * Returns the byte [] content of the specified file.
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| | | * |
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| | | *
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| | | * @param file
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| | | * @return the byte content of the file
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| | | */
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| | |
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| | | /**
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| | | * Returns the string content of the specified file.
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| | | * |
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| | | *
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| | | * @param file
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| | | * @param lineEnding
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| | | * @return the string content of the file
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| | |
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| | | /**
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| | | * Writes the string content to the file.
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| | | * |
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| | | *
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| | | * @param file
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| | | * @param content
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| | | */
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| | | /**
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| | | * Recursively traverses a folder and its subfolders to calculate the total
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| | | * size in bytes.
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| | | * |
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| | | *
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| | | * @param directory
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| | | * @return folder size in bytes
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| | | */
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| | | public static long folderSize(File directory) {
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| | | if (directory == null || !directory.exists()) {
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| | | return -1;
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| | | } |
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| | | }
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| | | if (directory.isDirectory()) {
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| | | long length = 0;
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| | | for (File file : directory.listFiles()) {
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| | | }
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| | |
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| | | /**
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| | | * Delete a file or recursively delete a folder.
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| | | *
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| | | * @param fileOrFolder
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| | | * @return true, if successful
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| | | */
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| | | public static boolean delete(File fileOrFolder) {
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| | | boolean success = false;
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| | | if (fileOrFolder.isDirectory()) {
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| | | File [] files = fileOrFolder.listFiles();
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| | | if (files != null) {
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| | | for (File file : files) {
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| | | if (file.isDirectory()) {
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| | | success |= delete(file);
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| | | } else {
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| | | success |= file.delete();
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| | | }
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| | | }
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| | | }
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| | | }
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| | | success |= fileOrFolder.delete();
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| | | return success;
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| | | }
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| | |
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| | | /**
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| | | * Copies a file or folder (recursively) to a destination folder.
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| | | * |
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| | | *
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| | | * @param destinationFolder
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| | | * @param filesOrFolders
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| | | * @return
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| | |
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| | | }
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| | | }
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| | | }
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| | | |
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| | |
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| | | /**
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| | | * Determine the relative path between two files. Takes into account
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| | | * canonical paths, if possible.
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| | | * |
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| | | *
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| | | * @param basePath
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| | | * @param path
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| | | * @return a relative path from basePath to path
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| | |
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| | | // no relative relationship
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| | | return null;
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| | | }
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| | | |
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| | |
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| | | /**
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| | | * Returns the exact path for a file. This path will be the canonical path
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| | | * unless an exception is thrown in which case it will be the absolute path.
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| | | * |
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| | | *
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| | | * @param path
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| | | * @return the exact file
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| | | */
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| | |
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| | |
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| | | public static File resolveParameter(String parameter, File aFolder, String path) {
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| | | if (aFolder == null) {
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| | | // strip any parameter reference |
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| | | // strip any parameter reference
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| | | path = path.replace(parameter, "").trim();
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| | | if (path.length() > 0 && path.charAt(0) == '/') {
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| | | // strip leading /
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