297 /**
298 * Returns file content as a list of strings
299 *
300 * @param file File to operate on
301 * @return List of strings
302 * @throws IOException
303 */
304 public static List<String> fileAsList(File file) throws IOException {
305 assertTrue(file.exists() && file.isFile(),
306 file.getAbsolutePath() + " does not exist or not a file");
307 List<String> output = new ArrayList<>();
308 try (BufferedReader reader = new BufferedReader(new FileReader(file.getAbsolutePath()))) {
309 while (reader.ready()) {
310 output.add(reader.readLine().replace(NEW_LINE, ""));
311 }
312 }
313 return output;
314 }
315
316 /**
317 * @return Unsafe instance.
318 */
319 public static synchronized Unsafe getUnsafe() {
320 if (unsafe == null) {
321 try {
322 Field f = Unsafe.class.getDeclaredField("theUnsafe");
323 f.setAccessible(true);
324 unsafe = (Unsafe) f.get(null);
325 } catch (NoSuchFieldException | IllegalAccessException e) {
326 throw new RuntimeException("Unable to get Unsafe instance.", e);
327 }
328 }
329 return unsafe;
330 }
331 private static final char[] hexArray = new char[]{'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
332
333 /**
334 * Returns hex view of byte array
335 *
336 * @param bytes byte array to process
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297 /**
298 * Returns file content as a list of strings
299 *
300 * @param file File to operate on
301 * @return List of strings
302 * @throws IOException
303 */
304 public static List<String> fileAsList(File file) throws IOException {
305 assertTrue(file.exists() && file.isFile(),
306 file.getAbsolutePath() + " does not exist or not a file");
307 List<String> output = new ArrayList<>();
308 try (BufferedReader reader = new BufferedReader(new FileReader(file.getAbsolutePath()))) {
309 while (reader.ready()) {
310 output.add(reader.readLine().replace(NEW_LINE, ""));
311 }
312 }
313 return output;
314 }
315
316 /**
317 * Return the contents of the named file as a single String,
318 * or null if not found.
319 * @param filename name of the file to read
320 * @return String contents of file, or null if file not found.
321 */
322 public static String fileAsString(String filename) {
323 StringBuilder result = new StringBuilder();
324 try {
325 File file = new File(filename);
326 if (file.exists()) {
327 BufferedReader reader = new BufferedReader(new FileReader(file));
328 while (true) {
329 String line = reader.readLine();
330 if (line == null) {
331 break;
332 }
333 result.append(line).append("\n");
334 }
335 } else {
336 // Does not exist:
337 return null;
338 }
339 } catch (Exception e) {
340 e.printStackTrace();
341 }
342 return result.toString();
343 }
344
345 /**
346 * @return Unsafe instance.
347 */
348 public static synchronized Unsafe getUnsafe() {
349 if (unsafe == null) {
350 try {
351 Field f = Unsafe.class.getDeclaredField("theUnsafe");
352 f.setAccessible(true);
353 unsafe = (Unsafe) f.get(null);
354 } catch (NoSuchFieldException | IllegalAccessException e) {
355 throw new RuntimeException("Unable to get Unsafe instance.", e);
356 }
357 }
358 return unsafe;
359 }
360 private static final char[] hexArray = new char[]{'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
361
362 /**
363 * Returns hex view of byte array
364 *
365 * @param bytes byte array to process
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