Java 类com.intellij.util.text.LineReader 实例源码

public File getPreprocessedTextFile(File originalTextFile, IWriterFactory writerFactory) throws IOException {
  final File preprocessedTextFile = FileUtil.createTempFile(TEMP_FILE_PREFIX, null);
  final BufferedInputStream inputStream = new BufferedInputStream(new FileInputStream(originalTextFile));
  Collection lines;
  try {
    lines = new LineReader(inputStream).readLines();
  }
  finally {
    inputStream.close();
  }

  FileOutputStream output = new FileOutputStream(preprocessedTextFile);

  try {
    for (Iterator each = lines.iterator(); each.hasNext();) {
      output.write((byte[]) each.next());
      if (each.hasNext()){
        output.write('\n');
      }
    }
  } finally {
    output.close();
  }

  return preprocessedTextFile;
}

@NotNull
public static String shiftIndentInside(@NotNull String initial, final int i, boolean shiftEmptyLines) throws IOException {
  StringBuilder result = new StringBuilder(initial.length());
  LineReader reader = new LineReader(new ByteArrayInputStream(initial.getBytes()));
  boolean first = true;
  for (byte[] line : reader.readLines()) {
    try {
      if (!first) result.append('\n');
      if (line.length > 0 || shiftEmptyLines) {
        StringUtil.repeatSymbol(result, ' ', i);
      }
      result.append(new String(line));
    }
    finally {
      first = false;
    }
  }

  return result.toString();
}

public File getPreprocessedTextFile(File originalTextFile, IWriterFactory writerFactory) throws IOException {
  final File preprocessedTextFile = FileUtil.createTempFile(TEMP_FILE_PREFIX, null);
  final BufferedInputStream inputStream = new BufferedInputStream(new FileInputStream(originalTextFile));
  Collection lines;
  try {
    lines = new LineReader(inputStream).readLines();
  }
  finally {
    inputStream.close();
  }

  FileOutputStream output = new FileOutputStream(preprocessedTextFile);

  try {
    for (Iterator each = lines.iterator(); each.hasNext();) {
      output.write((byte[]) each.next());
      if (each.hasNext()){
        output.write('\n');
      }
    }
  } finally {
    output.close();
  }

  return preprocessedTextFile;
}

@NotNull
public static String shiftIndentInside(@NotNull String initial, final int i, boolean shiftEmptyLines) throws IOException {
  StringBuilder result = new StringBuilder(initial.length());
  LineReader reader = new LineReader(new ByteArrayInputStream(initial.getBytes()));
  boolean first = true;
  for (byte[] line : reader.readLines()) {
    try {
      if (!first) result.append('\n');
      if (line.length > 0 || shiftEmptyLines) {
        StringUtil.repeatSymbol(result, ' ', i);
      }
      result.append(new String(line));
    }
    finally {
      first = false;
    }
  }

  return result.toString();
}

@NotNull
public static String shiftIndentInside(@NotNull String initial, final int i, boolean shiftEmptyLines) {
  StringBuilder result = new StringBuilder(initial.length());
  List<byte[]> lines;
  try {
    LineReader reader = new LineReader(new ByteArrayInputStream(initial.getBytes(CharsetToolkit.UTF8_CHARSET)));
    lines = reader.readLines();
  }
  catch (IOException e) {
    throw new RuntimeException(e);
  }

  boolean first = true;
  for (byte[] line : lines) {
    try {
      if (!first) result.append('\n');
      if (line.length > 0 || shiftEmptyLines) {
        StringUtil.repeatSymbol(result, ' ', i);
      }
      result.append(new String(line));
    }
    finally {
      first = false;
    }
  }

  return result.toString();
}