io.airlift.slice.Slice.indexOf()方法的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
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本文整理了Java中io.airlift.slice.Slice.indexOf()方法的一些代码示例，展示了Slice.indexOf()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Slice.indexOf()方法的具体详情如下：
包路径：io.airlift.slice.Slice
类名称：Slice
方法名：indexOf

Slice.indexOf介绍

[英]Returns the index of the first occurrence of the pattern with this slice. If the pattern is not found -1 is returned. If patten is empty, zero is returned.
[中]返回此切片模式第一次出现的索引。如果找不到模式，则返回-1。如果patten为空，则返回零。

代码示例

代码示例来源：origin: prestodb/presto

@Description("returns index of first occurrence of a substring (or 0 if not found)")
@ScalarFunction("strpos")
@LiteralParameters({"x", "y"})
@SqlType(StandardTypes.BIGINT)
public static long stringPosition(@SqlType("varchar(x)") Slice string, @SqlType("varchar(y)") Slice substring)
{
  if (substring.length() == 0) {
    return 1;
  }
  int index = string.indexOf(substring);
  if (index < 0) {
    return 0;
  }
  return countCodePoints(string, 0, index) + 1;
}

代码示例来源：origin: io.airlift/slice

public static void assertIndexOf(Slice data, Slice pattern, int offset, int expected)
{
  assertEquals(data.indexOf(pattern, offset), expected);
  assertEquals(data.indexOfBruteForce(pattern, offset), expected);
}

代码示例来源：origin: prestodb/presto

private static List<Long> getSyncPositionsBruteForce(RcFileReader recordReader, File file)
{
  Slice slice = Slices.allocate((int) file.length());
  try (InputStream in = new FileInputStream(file)) {
    slice.setBytes(0, in, slice.length());
  }
  catch (IOException e) {
    throw new UncheckedIOException(e);
  }
  List<Long> syncPositionsBruteForce = new ArrayList<>();
  Slice sync = Slices.allocate(SIZE_OF_INT + SIZE_OF_LONG + SIZE_OF_LONG);
  sync.setInt(0, -1);
  sync.setBytes(SIZE_OF_INT, recordReader.getSync());
  long syncPosition = 0;
  while (syncPosition >= 0) {
    syncPosition = slice.indexOf(sync, (int) syncPosition);
    if (syncPosition > 0) {
      syncPositionsBruteForce.add(syncPosition);
      syncPosition++;
    }
  }
  return syncPositionsBruteForce;
}

代码示例来源：origin: airlift/slice

public static void assertIndexOf(Slice data, Slice pattern, int offset, int expected)
{
  assertEquals(data.indexOf(pattern, offset), expected);
  assertEquals(data.indexOfBruteForce(pattern, offset), expected);
}

代码示例来源：origin: prestodb/presto

int entryEnd = string.indexOf(entryDelimiter, entryStart);
if (entryEnd >= 0) {
  keyValuePair = string.slice(entryStart, entryEnd - entryStart);
int keyEnd = keyValuePair.indexOf(keyValueDelimiter);
if (keyEnd >= 0) {
  int valueStart = keyEnd + keyValueDelimiter.length();
  Slice value = keyValuePair.slice(valueStart, keyValuePair.length() - valueStart);
  if (value.indexOf(keyValueDelimiter) >= 0) {
    throw new PrestoException(INVALID_FUNCTION_ARGUMENT, "Key-value delimiter must appear exactly once in each entry. Bad input: '" + keyValuePair.toStringUtf8() + "'");

代码示例来源：origin: airlift/slice

public static void assertIndexOf(Slice data, Slice pattern)
{
  int index;
  List<Integer> bruteForce = new ArrayList<>();
  index = 0;
  while (index >= 0 && index < data.length()) {
    index = data.indexOfBruteForce(pattern, index);
    if (index >= 0) {
      bruteForce.add(index);
      index++;
    }
  }
  List<Integer> indexOf = new ArrayList<>();
  index = 0;
  while (index >= 0 && index < data.length()) {
    index = data.indexOf(pattern, index);
    if (index >= 0) {
      indexOf.add(index);
      index++;
    }
  }
  assertEquals(bruteForce, indexOf);
}

代码示例来源：origin: prestodb/presto

int entryEnd = string.indexOf(entryDelimiter, entryStart);
if (entryEnd >= 0) {
  keyValuePair = string.slice(entryStart, entryEnd - entryStart);
int keyEnd = keyValuePair.indexOf(keyValueDelimiter);
if (keyEnd < 0) {
  throw new PrestoException(INVALID_FUNCTION_ARGUMENT, "Key-value delimiter must appear exactly once in each entry. Bad input: " + keyValuePair.toStringUtf8());
Slice key = keyValuePair.slice(0, keyEnd);
Slice value = keyValuePair.slice(valueStart, keyValuePair.length() - valueStart);
if (value.indexOf(keyValueDelimiter) >= 0) {
  throw new PrestoException(INVALID_FUNCTION_ARGUMENT, "Key-value delimiter must appear exactly once in each entry. Bad input: " + keyValuePair.toStringUtf8());

代码示例来源：origin: io.airlift/slice

public static void assertIndexOf(Slice data, Slice pattern)
{
  int index;
  List<Integer> bruteForce = new ArrayList<>();
  index = 0;
  while (index >= 0 && index < data.length()) {
    index = data.indexOfBruteForce(pattern, index);
    if (index >= 0) {
      bruteForce.add(index);
      index++;
    }
  }
  List<Integer> indexOf = new ArrayList<>();
  index = 0;
  while (index >= 0 && index < data.length()) {
    index = data.indexOf(pattern, index);
    if (index >= 0) {
      indexOf.add(index);
      index++;
    }
  }
  assertEquals(bruteForce, indexOf);
}

代码示例来源：origin: prestodb/presto

int matchIndex = string.indexOf(delimiter, previousIndex);

代码示例来源：origin: prestodb/presto

int splitIndex = string.indexOf(delimiter, index);

代码示例来源：origin: prestodb/presto

int indexBuffer = 0;
while (index < str.length()) {
  int matchIndex = str.indexOf(search, index);

代码示例来源：origin: airlift/slice

/**
 * Returns the index of the first occurrence of the pattern with this slice.
 * If the pattern is not found -1 is returned. If patten is empty, zero is
 * returned.
 */
public int indexOf(Slice slice)
{
  return indexOf(slice, 0);
}

代码示例来源：origin: io.airlift/slice

/**
 * Returns the index of the first occurrence of the pattern with this slice.
 * If the pattern is not found -1 is returned. If patten is empty, zero is
 * returned.
 */
public int indexOf(Slice slice)
{
  return indexOf(slice, 0);
}

代码示例来源：origin: qubole/presto-udfs

private static long stringPosition(Slice string, Slice substring)
{
  if (substring.length() == 0) {
    return 1L;
  }
  else {
    int index = string.indexOf(substring);
    return index < 0 ? 0L : (long) (SliceUtf8.countCodePoints(string, 0, index) + 1);
  }
}

代码示例来源：origin: uk.co.nichesolutions.presto/presto-main

@Description("returns index of first occurrence of a substring (or 0 if not found)")
@ScalarFunction("strpos")
@SqlType(StandardTypes.BIGINT)
public static long stringPosition(@SqlType(StandardTypes.VARCHAR) Slice string, @SqlType(StandardTypes.VARCHAR) Slice substring)
{
  if (substring.length() == 0) {
    return 1;
  }
  int index = string.indexOf(substring);
  if (index < 0) {
    return 0;
  }
  return countCodePoints(string, 0, index) + 1;
}

代码示例来源：origin: prestosql/presto

@Description("returns index of first occurrence of a substring (or 0 if not found)")
@ScalarFunction("strpos")
@LiteralParameters({"x", "y"})
@SqlType(StandardTypes.BIGINT)
public static long stringPosition(@SqlType("varchar(x)") Slice string, @SqlType("varchar(y)") Slice substring)
{
  if (substring.length() == 0) {
    return 1;
  }
  int index = string.indexOf(substring);
  if (index < 0) {
    return 0;
  }
  return countCodePoints(string, 0, index) + 1;
}

代码示例来源：origin: io.prestosql/presto-rcfile

private static List<Long> getSyncPositionsBruteForce(RcFileReader recordReader, File file)
{
  Slice slice = Slices.allocate((int) file.length());
  try (InputStream in = new FileInputStream(file)) {
    slice.setBytes(0, in, slice.length());
  }
  catch (IOException e) {
    throw new UncheckedIOException(e);
  }
  List<Long> syncPositionsBruteForce = new ArrayList<>();
  Slice sync = Slices.allocate(SIZE_OF_INT + SIZE_OF_LONG + SIZE_OF_LONG);
  sync.setInt(0, -1);
  sync.setBytes(SIZE_OF_INT, recordReader.getSync());
  long syncPosition = 0;
  while (syncPosition >= 0) {
    syncPosition = slice.indexOf(sync, (int) syncPosition);
    if (syncPosition > 0) {
      syncPositionsBruteForce.add(syncPosition);
      syncPosition++;
    }
  }
  return syncPositionsBruteForce;
}

代码示例来源：origin: prestosql/presto

private static List<Long> getSyncPositionsBruteForce(RcFileReader recordReader, File file)
{
  Slice slice = Slices.allocate((int) file.length());
  try (InputStream in = new FileInputStream(file)) {
    slice.setBytes(0, in, slice.length());
  }
  catch (IOException e) {
    throw new UncheckedIOException(e);
  }
  List<Long> syncPositionsBruteForce = new ArrayList<>();
  Slice sync = Slices.allocate(SIZE_OF_INT + SIZE_OF_LONG + SIZE_OF_LONG);
  sync.setInt(0, -1);
  sync.setBytes(SIZE_OF_INT, recordReader.getSync());
  long syncPosition = 0;
  while (syncPosition >= 0) {
    syncPosition = slice.indexOf(sync, (int) syncPosition);
    if (syncPosition > 0) {
      syncPositionsBruteForce.add(syncPosition);
      syncPosition++;
    }
  }
  return syncPositionsBruteForce;
}

代码示例来源：origin: io.prestosql/presto-main

@Description("returns index of first occurrence of a substring (or 0 if not found)")
@ScalarFunction("strpos")
@LiteralParameters({"x", "y"})
@SqlType(StandardTypes.BIGINT)
public static long stringPosition(@SqlType("varchar(x)") Slice string, @SqlType("varchar(y)") Slice substring)
{
  if (substring.length() == 0) {
    return 1;
  }
  int index = string.indexOf(substring);
  if (index < 0) {
    return 0;
  }
  return countCodePoints(string, 0, index) + 1;
}

代码示例来源：origin: com.facebook.presto/presto-rcfile

private static List<Long> getSyncPositionsBruteForce(RcFileReader recordReader, File file)
{
  Slice slice = Slices.allocate((int) file.length());
  try (InputStream in = new FileInputStream(file)) {
    slice.setBytes(0, in, slice.length());
  }
  catch (IOException e) {
    throw new UncheckedIOException(e);
  }
  List<Long> syncPositionsBruteForce = new ArrayList<>();
  Slice sync = Slices.allocate(SIZE_OF_INT + SIZE_OF_LONG + SIZE_OF_LONG);
  sync.setInt(0, -1);
  sync.setBytes(SIZE_OF_INT, recordReader.getSync());
  long syncPosition = 0;
  while (syncPosition >= 0) {
    syncPosition = slice.indexOf(sync, (int) syncPosition);
    if (syncPosition > 0) {
      syncPositionsBruteForce.add(syncPosition);
      syncPosition++;
    }
  }
  return syncPositionsBruteForce;
}

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