java.lang.Object

org.miaixz.bus.core.io.buffer.Buffer

All Implemented Interfaces:: Closeable, Flushable, AutoCloseable, Cloneable, ByteChannel, Channel, ReadableByteChannel, WritableByteChannel, BufferSink, Sink, BufferSource, Source

public class Buffer extends Object implements BufferSource, BufferSink, Cloneable, ByteChannel

内存中字节的集合.

Since:: Java 17+
Author:: Kimi Liu

Nested Class Summary

Nested Classes

Modifier and Type

Class

Description

static final class

Buffer.UnsafeCursor

不安全的游标
Field Summary

Fields

Modifier and Type

Field

Description

SectionBuffer

head

头部信息

static final int

REPLACEMENT_CHARACTER

long

size

信息大小
Constructor Summary

Constructors

Constructor

Description

Buffer()
Method Summary

Modifier and Type

Method

Description

Buffer

buffer()

Returns this sink's internal buffer.

final void

clear()

丢弃此缓冲区中的所有字节。在使用完缓冲区后调用此方法将把它的段返回到池中

Buffer

clone()

Returns a deep copy of this buffer.

void

close()

关闭此源并释放此源持有的资源.

final long

completeSegmentByteCount()

Returns the number of bytes in segments that are not writable.

final Buffer

copyTo(OutputStream out)

将其内容复制到 out.

final Buffer

copyTo(OutputStream out, long offset, long byteCount)

从这里复制byteCount字节，从offset开始，复制到 out.

final Buffer

copyTo(Buffer out, long offset, long byteCount)

从这里复制byteCount字节，从offset开始，复制到out.

BufferSink

emit()

Writes all buffered data to the underlying sink, if one exists.

Buffer

emitCompleteSegments()

Writes complete segments to the underlying sink, if one exists.

boolean

equals(Object o)

boolean

exhausted()

如果此源中没有更多字节，则返回 true。这将阻塞，直到有字节可读取或源确实已耗尽

void

flush()

Writes all buffered data to the underlying sink, if one exists.

Buffer

getBuffer()

该源的内部缓冲区

final byte

getByte(long pos)

返回pos处的字节.

int

hashCode()

ByteString

hmacSha1(ByteString key)

ByteString

hmacSha256(ByteString key)

final ByteString

hmacSha512(ByteString key)

long

indexOf(byte b)

Equivalent to indexOf(b, 0).

long

indexOf(byte b, long fromIndex)

Returns the index of b in this at or beyond fromIndex, or -1 if this buffer does not contain b in that range.

long

indexOf(byte b, long fromIndex, long toIndex)

如果在 fromIndex 到 toIndex 范围内找到 b，则返回其索引。如果未找到 b，或者 fromIndex == toIndex，则返回 -1。

long

indexOf(ByteString bytes)

相当于indexOf(bytes, 0)。

long

indexOf(ByteString bytes, long fromIndex)

返回缓冲区中 bytes 的第一个匹配项的索引，位于 fromIndex 处或之后。这会根据需要扩展缓冲区，直到找到 bytes。这会将无限数量的字节读入缓冲区。如果在找到请求的字节之前流已耗尽，则返回 -1。

long

indexOfElement(ByteString targetBytes)

相当于indexOfElement(targetBytes, 0)。

long

indexOfElement(ByteString targetBytes, long fromIndex)

返回此缓冲区中位于 fromIndex 或之后且包含 targetBytes 中任意字节的第一个索引。这会根据需要扩展缓冲区，直到找到目标字节。这会将无限数量的字节读入缓冲区。如果在找到请求的字节之前流已耗尽，则返回 -1。

InputStream

inputStream()

返回从该源读取的输入流

boolean

isOpen()

ByteString

md5()

OutputStream

outputStream()

Returns an output stream that writes to this sink.

BufferSource

peek()

返回一个新的 BufferedSource，可从此 BufferedSource读取数据但不使用它。一旦下次读取或关闭此源，返回的源将变为无效。

boolean

rangeEquals(long offset, ByteString bytes)

如果此源中 offset 处的字节等于 bytes，则返回 true。这会根据需要扩展缓冲区，直到某个字节不匹配、所有字节都匹配，或者在足够的字节确定匹配之前流已耗尽。

boolean

rangeEquals(long offset, ByteString bytes, int bytesOffset, int byteCount)

如果此源中 offset 处的 byteCount 个字节等于 bytesOffset 处的 bytes，则返回 true。这会根据需要扩展缓冲区，直到某个字节不匹配、所有字节都匹配，或者在足够的字节确定匹配之前流已耗尽。

int

read(byte[] sink)

从中移除最多 sink.length 个字节并将其复制到 sink。返回读取的字节数，如果此源已耗尽，则返回 -1。

int

read(byte[] sink, int offset, int byteCount)

从此处删除最多 byteCount 个字节并将其复制到 offset 处的 sink。返回读取的字节数，如果此源已耗尽，则返回 -1。

int

read(ByteBuffer sink)

long

read(Buffer sink, long byteCount)

从中删除至少1个字节，最多为byteCount字节，并将它们附加到sink。返回读取的字节数，如果该源已耗尽，则返回-1

long

readAll(Sink sink)

从中删除所有字节并将其附加到 sink。返回写入 sink 的总字节数，如果已用尽，则为 0。

Buffer.UnsafeCursor

readAndWriteUnsafe()

Buffer.UnsafeCursor

readAndWriteUnsafe(Buffer.UnsafeCursor unsafeCursor)

byte

readByte()

从该源中删除一个字节并返回它

byte[]

readByteArray()

从中删除所有字节并将它们作为字节数组返回。

byte[]

readByteArray(long byteCount)

从中删除 byteCount 个字节并将其作为字节数组返回。

ByteString

readByteString()

从中删除所有字节并将它们作为字节字符串返回

ByteString

readByteString(long byteCount)

从中删除 byteCount 个字节并将其作为字节字符串返回。

long

readDecimalLong()

以有符号十进制形式从此源读取一个长整型值（即以十进制为基数的字符串，前导字符可选为“-”）。此操作将不断迭代，直到找到非数字字符。

final Buffer

readFrom(InputStream in)

将in中的字节读入并转为bytes

final Buffer

readFrom(InputStream in, long byteCount)

Read byteCount bytes from in to this.

void

readFully(byte[] sink)

从中删除恰好 sink.length 个字节并将其复制到 sink。如果无法读取请求的字节数，则抛出 EOFException。

void

readFully(Buffer sink, long byteCount)

从中删除精确的 byteCount 个字节并将其附加到 sink。如果无法读取请求的字节数，则抛出 EOFException。

long

readHexadecimalUnsignedLong()

以十六进制形式（即以 16 进制表示的字符串）读取此源的长格式。此过程将不断迭代，直到找到非十六进制字符

int

readInt()

从此源中删除四个字节并返回一个大整数

int

readIntLe()

从该源中删除四个字节并返回一个小整数

long

readLong()

该源中删除八个字节并返回一个大长整型

long

readLongLe()

从此源中删除八个字节并返回一个小长整型

short

readShort()

从此源中删除两个字节并返回一个短整型

short

readShortLe()

从此源中删除两个字节并返回一个整型

String

readString(long byteCount, Charset charset)

从中删除 byteCount 个字节，将其解码为 charset，并返回字符串。

String

readString(Charset charset)

从中删除所有字节，将其解码为charset，并返回字符串。

Buffer.UnsafeCursor

readUnsafe()

Buffer.UnsafeCursor

readUnsafe(Buffer.UnsafeCursor unsafeCursor)

String

readUtf8()

从中删除所有字节，将其解码为 UTF-8，然后返回字符串。如果此源为空，则返回空字符串。

String

readUtf8(long byteCount)

从中删除 byteCount 个字节，将其解码为 UTF-8，并返回字符串。

int

readUtf8CodePoint()

删除并返回单个 UTF-8 代码点，根据需要读取 1 到 4 个字节。如果此源不是以正确编码的 UTF-8 代码点开头，则此方法将删除 1 个或多个非 UTF-8 字节并返回替换字符 (U+FFFD)。这包括编码问题（输入不是正确编码的 UTF-8）、字符超出范围（超出 Unicode 的 0x10ffff 限制）、UTF-16 代理的代码点 (U+d800..U+dfff) 和过长编码（例如，修改版 UTF-8 中的 NUL 字符为 0xc080）

String

readUtf8Line()

删除并返回直到下一个换行符（但不包括该换行符）的字符。换行符为 "\n" 或 "\r\n"；这些字符不包含在结果中。

String

readUtf8Line(long newline)

String

readUtf8LineStrict()

删除并返回直到下一个换行符（但不包括该换行符）的字符。换行符为 "\n" 或 "\r\n"；这些字符不包含在结果中

String

readUtf8LineStrict(long limit)

与 BufferSource.readUtf8LineStrict() 类似，不同之处在于它允许调用者指定允许的最长匹配。使用它来防止可能不包含 "\n" 或 "\r\n" 的流。

boolean

request(long byteCount)

如果缓冲区至少包含 byteCount 个字节，则返回 true，并根据需要对其进行扩展。如果在读取请求的字节之前源已耗尽，则返回 false。

void

require(long byteCount)

当缓冲区至少包含 byteCount 个字节时返回。如果在读取所需字节之前源已耗尽，则抛出 EOFException。

int

select(SegmentBuffer segmentBuffer)

在options 中查找第一个作为此缓冲区前缀的字符串，从此缓冲区中使用它，并返回其索引。如果 options 中没有字节字符串是此缓冲区的前缀，则返回 -1，并且不消耗任何字节。如果事先知道预期值集，则可以将其用作 BufferSource.readByteString() 甚至 BufferSource.readUtf8() 的替代。

int

selectPrefix(SegmentBuffer segmentBuffer, boolean selectTruncated)

返回此缓冲区前缀的选项中的值的索引。如果没有找到值，则返回-1 此方法执行两个同步迭代:迭代trie和迭代这个缓冲区。当它在trie中到达一个结果时，当它在trie中不匹配时，以及当缓冲区耗尽时，它将返回

ByteString

sha1()

ByteString

sha256()

ByteString

sha512()

final long

size()

void

skip(long byteCount)

从这个缓冲区的头部丢弃byteCount字节.

ByteString

snapshot()

Returns an immutable copy of this buffer as a byte string.

ByteString

snapshot(int byteCount)

Returns an immutable copy of the first byteCount bytes of this buffer as a byte string.

Timeout

timeout()

返回此源的超时时间.

String

toString()

Returns a human-readable string that describes the contents of this buffer.

SectionBuffer

writableSegment(int minimumCapacity)

Buffer

write(byte[] source)

Like OutputStream.write(byte[]), this writes a complete byte array to this sink.

Buffer

write(byte[] source, int offset, int byteCount)

Like OutputStream.write(byte[], int, int), this writes byteCount bytes of source, starting at offset.

int

write(ByteBuffer source)

void

write(Buffer source, long byteCount)

Removes byteCount bytes from source and appends them to this.

Buffer

write(ByteString byteString)

BufferSink

write(Source source, long byteCount)

Removes byteCount bytes from source and appends them to this sink.

long

writeAll(Source source)

Removes all bytes from source and appends them to this sink.

Buffer

writeByte(int b)

Writes a byte to this sink.

Buffer

writeDecimalLong(long v)

Writes a long to this sink in signed decimal form (i.e., as a string in base 10).

Buffer

writeHexadecimalUnsignedLong(long v)

Writes a long to this sink in hexadecimal form (i.e., as a string in base 16).

Buffer

writeInt(int i)

Writes a big-endian int to this sink using four bytes.

Buffer

writeIntLe(int i)

Writes a little-endian int to this sink using four bytes.

Buffer

writeLong(long v)

Writes a big-endian long to this sink using eight bytes.

Buffer

writeLongLe(long v)

Writes a little-endian long to this sink using eight bytes.

Buffer

writeShort(int s)

Writes a big-endian short to this sink using two bytes.

Buffer

writeShortLe(int s)

Writes a little-endian short to this sink using two bytes.

Buffer

writeString(String string, int beginIndex, int endIndex, Charset charset)

Encodes the characters at beginIndex up to endIndex from string in charset and writes it to this sink.

Buffer

writeString(String string, Charset charset)

Encodes string in charset and writes it to this sink.

final Buffer

writeTo(OutputStream out)

将其内容写入out.

final Buffer

writeTo(OutputStream out, long byteCount)

将byteCount字节写入out.

Buffer

writeUtf8(String string)

Encodes string in UTF-8 and writes it to this sink.

Buffer

writeUtf8(String string, int beginIndex, int endIndex)

Encodes the characters at beginIndex up to endIndex from string in UTF-8 and writes it to this sink.

Buffer

writeUtf8CodePoint(int codePoint)

Encodes codePoint in UTF-8 and writes it to this sink.

Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details
- REPLACEMENT_CHARACTER
  
  public static final int REPLACEMENT_CHARACTER
  See Also:
  
  Constant Field Values
- head
  
  public SectionBuffer head
  
  头部信息
- size
  
  public long size
  
  信息大小
Constructor Details
- Buffer
  
  public Buffer()
Method Details
- size
  
  public final long size()
- buffer
  
  public Buffer buffer()
  
  Description copied from interface: BufferSink
  
  Returns this sink's internal buffer.
  
  Specified by:
  
  buffer in interface BufferSink
- getBuffer
  
  public Buffer getBuffer()
  
  Description copied from interface: BufferSource
  
  该源的内部缓冲区
  
  Specified by:
  
  getBuffer in interface BufferSource
  
  Returns:
  
  Buffer
- outputStream
  
  public OutputStream outputStream()
  
  Description copied from interface: BufferSink
  
  Returns an output stream that writes to this sink.
  
  Specified by:
  
  outputStream in interface BufferSink
- emitCompleteSegments
  
  public Buffer emitCompleteSegments()
  
  Description copied from interface: BufferSink
  Writes complete segments to the underlying sink, if one exists. Like BufferSink.flush(), but weaker. Use this to limit the memory held in the buffer to a single segment. Typically application code will not need to call this: it is only necessary when application code writes directly to this sink's buffer.
  BufferedSink b0 = new Buffer(); BufferedSink b1 = Okio.buffer(b0); BufferedSink b2 = Okio.buffer(b1); b2.buffer().write(new byte[20_000]); assertEquals(20_000, b2.buffer().size()); assertEquals( 0, b1.buffer().size()); assertEquals( 0, b0.buffer().size()); b2.emitCompleteSegments(); assertEquals( 3_616, b2.buffer().size()); assertEquals( 0, b1.buffer().size()); assertEquals(16_384, b0.buffer().size()); // This example assumes 8192 byte segments.
  Specified by:
  
  emitCompleteSegments in interface BufferSink
- emit
  
  public BufferSink emit()
  
  Description copied from interface: BufferSink
  Writes all buffered data to the underlying sink, if one exists. Like BufferSink.flush(), but weaker. Call this before this buffered sink goes out of scope so that its data can reach its destination.
  BufferedSink b0 = new Buffer(); BufferedSink b1 = Okio.buffer(b0); BufferedSink b2 = Okio.buffer(b1); b2.writeUtf8("hello"); assertEquals(5, b2.buffer().size()); assertEquals(0, b1.buffer().size()); assertEquals(0, b0.buffer().size()); b2.emit(); assertEquals(0, b2.buffer().size()); assertEquals(5, b1.buffer().size()); assertEquals(0, b0.buffer().size()); b1.emit(); assertEquals(0, b2.buffer().size()); assertEquals(0, b1.buffer().size()); assertEquals(5, b0.buffer().size());
  Specified by:
  
  emit in interface BufferSink
- exhausted
  
  public boolean exhausted()
  
  Description copied from interface: BufferSource
  
  如果此源中没有更多字节，则返回 true。这将阻塞，直到有字节可读取或源确实已耗尽
  
  Specified by:
  
  exhausted in interface BufferSource
  
  Returns:
  
  the true/false
- require
  
  public void require(long byteCount) throws EOFException
  
  Description copied from interface: BufferSource
  
  当缓冲区至少包含 byteCount 个字节时返回。如果在读取所需字节之前源已耗尽，则抛出 EOFException。
  
  Specified by:
  
  require in interface BufferSource
  
  Parameters:
  
  byteCount - 字节数
  
  Throws:
  
  EOFException
- request
  
  public boolean request(long byteCount)
  
  Description copied from interface: BufferSource
  
  如果缓冲区至少包含 byteCount 个字节，则返回 true，并根据需要对其进行扩展。如果在读取请求的字节之前源已耗尽，则返回 false。
  
  Specified by:
  
  request in interface BufferSource
  
  Parameters:
  
  byteCount - 字节数
  
  Returns:
  
  the true/false
- peek
  
  public BufferSource peek()
  
  Description copied from interface: BufferSource
  返回一个新的 BufferedSource，可从此 BufferedSource读取数据但不使用它。一旦下次读取或关闭此源，返回的源将变为无效。
  Buffer buffer = new Buffer(); buffer.writeUtf8("abcdefghi"); buffer.readUtf8(3) // returns "abc", buffer contains "defghi" BufferedSource peek = buffer.peek(); peek.readUtf8(3); // returns "def", buffer contains "defghi" peek.readUtf8(3); // returns "ghi", buffer contains "defghi" buffer.readUtf8(3); // returns "def", buffer contains "ghi"
  Specified by:
  
  peek in interface BufferSource
  
  Returns:
  
  BufferSource
- inputStream
  
  public InputStream inputStream()
  
  Description copied from interface: BufferSource
  
  返回从该源读取的输入流
  
  Specified by:
  
  inputStream in interface BufferSource
  
  Returns:
  
  InputStream
- copyTo
  
  public final Buffer copyTo(OutputStream out) throws IOException
  
  将其内容复制到 out.
  
  Parameters:
  
  out - 输出流
  
  Returns:
  
  Buffer 内容
  
  Throws:
  
  IOException - 抛出异常
- copyTo
  
  public final Buffer copyTo(OutputStream out, long offset, long byteCount) throws IOException
  
  从这里复制byteCount字节，从offset开始，复制到 out.
  
  Parameters:
  
  out - 输出流
  
  offset - 偏移量
  
  byteCount - 偏移量
  
  Returns:
  
  Buffer 内容
  
  Throws:
  
  IOException - 抛出异常
- copyTo
  
  public final Buffer copyTo(Buffer out, long offset, long byteCount)
  
  从这里复制byteCount字节，从offset开始，复制到out.
  
  Parameters:
  
  out - 输出流
  
  offset - 偏移量
  
  byteCount - 偏移量
  
  Returns:
  
  Buffer 内容
- writeTo
  
  public final Buffer writeTo(OutputStream out) throws IOException
  
  将其内容写入out.
  
  Parameters:
  
  out - 输出流
  
  Returns:
  
  Buffer 内容
  
  Throws:
  
  IOException - 抛出异常
- writeTo
  
  public final Buffer writeTo(OutputStream out, long byteCount) throws IOException
  
  将byteCount字节写入out.
  
  Parameters:
  
  out - 输出流
  
  byteCount - 偏移量
  
  Returns:
  
  Buffer 内容
  
  Throws:
  
  IOException - 抛出异常
- readFrom
  
  public final Buffer readFrom(InputStream in) throws IOException
  
  将in中的字节读入并转为bytes
  
  Parameters:
  
  in - 输入流
  
  Returns:
  
  Buffer 内容
  
  Throws:
  
  IOException - 抛出异常
- readFrom
  
  public final Buffer readFrom(InputStream in, long byteCount) throws IOException
  
  Read byteCount bytes from in to this.
  
  Parameters:
  
  in - 输入流
  
  byteCount - 偏移量
  
  Returns:
  
  Buffer 内容
  
  Throws:
  
  IOException - 抛出异常
- completeSegmentByteCount
  
  public final long completeSegmentByteCount()
  
  Returns the number of bytes in segments that are not writable. This is the number of bytes that can be flushed immediately to an underlying sink without harming throughput.
- readByte
  
  public byte readByte()
  
  Description copied from interface: BufferSource
  
  从该源中删除一个字节并返回它
  
  Specified by:
  
  readByte in interface BufferSource
  
  Returns:
  
  the true/false
- getByte
  
  public final byte getByte(long pos)
  
  返回pos处的字节.
  
  Parameters:
  
  pos - long
  
  Returns:
  
  byte 内容
- readShort
  
  public short readShort()
  
  Description copied from interface: BufferSource
  从此源中删除两个字节并返回一个短整型
  Buffer buffer = new Buffer() .writeByte(0x7f) .writeByte(0xff) .writeByte(0x00) .writeByte(0x0f); assertEquals(4, buffer.size()); assertEquals(32767, buffer.readShort()); assertEquals(2, buffer.size()); assertEquals(15, buffer.readShort()); assertEquals(0, buffer.size());
  Specified by:
  
  readShort in interface BufferSource
  
  Returns:
  
  the short
- readInt
  
  public int readInt()
  
  Description copied from interface: BufferSource
  从此源中删除四个字节并返回一个大整数
  Buffer buffer = new Buffer() .writeByte(0x7f) .writeByte(0xff) .writeByte(0xff) .writeByte(0xff) .writeByte(0x00) .writeByte(0x00) .writeByte(0x00) .writeByte(0x0f); assertEquals(8, buffer.size()); assertEquals(2147483647, buffer.readInt()); assertEquals(4, buffer.size()); assertEquals(15, buffer.readInt()); assertEquals(0, buffer.size());
  Specified by:
  
  readInt in interface BufferSource
  
  Returns:
  
  the int
- readLong
  
  public long readLong()
  
  Description copied from interface: BufferSource
  该源中删除八个字节并返回一个大长整型
  Buffer buffer = new Buffer() .writeByte(0x7f) .writeByte(0xff) .writeByte(0xff) .writeByte(0xff) .writeByte(0xff) .writeByte(0xff) .writeByte(0xff) .writeByte(0xff) .writeByte(0x00) .writeByte(0x00) .writeByte(0x00) .writeByte(0x00) .writeByte(0x00) .writeByte(0x00) .writeByte(0x00) .writeByte(0x0f); assertEquals(16, buffer.size()); assertEquals(9223372036854775807L, buffer.readLong()); assertEquals(8, buffer.size()); assertEquals(15, buffer.readLong()); assertEquals(0, buffer.size());
  Specified by:
  
  readLong in interface BufferSource
  
  Returns:
  
  the long
- readShortLe
  
  public short readShortLe()
  
  Description copied from interface: BufferSource
  从此源中删除两个字节并返回一个整型
  Buffer buffer = new Buffer() .writeByte(0xff) .writeByte(0x7f) .writeByte(0x0f) .writeByte(0x00); assertEquals(4, buffer.size()); assertEquals(32767, buffer.readShortLe()); assertEquals(2, buffer.size()); assertEquals(15, buffer.readShortLe()); assertEquals(0, buffer.size());
  Specified by:
  
  readShortLe in interface BufferSource
  
  Returns:
  
  the short
- readIntLe
  
  public int readIntLe()
  
  Description copied from interface: BufferSource
  从该源中删除四个字节并返回一个小整数
  Buffer buffer = new Buffer() .writeByte(0xff) .writeByte(0xff) .writeByte(0xff) .writeByte(0x7f) .writeByte(0x0f) .writeByte(0x00) .writeByte(0x00) .writeByte(0x00); assertEquals(8, buffer.size()); assertEquals(2147483647, buffer.readIntLe()); assertEquals(4, buffer.size()); assertEquals(15, buffer.readIntLe()); assertEquals(0, buffer.size());
  Specified by:
  
  readIntLe in interface BufferSource
  
  Returns:
  
  the int
- readLongLe
  
  public long readLongLe()
  
  Description copied from interface: BufferSource
  从此源中删除八个字节并返回一个小长整型
  Buffer buffer = new Buffer() .writeByte(0xff) .writeByte(0xff) .writeByte(0xff) .writeByte(0xff) .writeByte(0xff) .writeByte(0xff) .writeByte(0xff) .writeByte(0x7f) .writeByte(0x0f) .writeByte(0x00) .writeByte(0x00) .writeByte(0x00) .writeByte(0x00) .writeByte(0x00) .writeByte(0x00) .writeByte(0x00); assertEquals(16, buffer.size()); assertEquals(9223372036854775807L, buffer.readLongLe()); assertEquals(8, buffer.size()); assertEquals(15, buffer.readLongLe()); assertEquals(0, buffer.size());
  Specified by:
  
  readLongLe in interface BufferSource
  
  Returns:
  
  the long
- readDecimalLong
  
  public long readDecimalLong()
  
  Description copied from interface: BufferSource
  以有符号十进制形式从此源读取一个长整型值（即以十进制为基数的字符串，前导字符可选为“-”）。此操作将不断迭代，直到找到非数字字符。
  Buffer buffer = new Buffer() .writeUtf8("8675309 -123 00001"); assertEquals(8675309L, buffer.readDecimalLong()); assertEquals(' ', buffer.readByte()); assertEquals(-123L, buffer.readDecimalLong()); assertEquals(' ', buffer.readByte()); assertEquals(1L, buffer.readDecimalLong());
  Specified by:
  
  readDecimalLong in interface BufferSource
  
  Returns:
  
  the long
- readHexadecimalUnsignedLong
  
  public long readHexadecimalUnsignedLong()
  
  Description copied from interface: BufferSource
  以十六进制形式（即以 16 进制表示的字符串）读取此源的长格式。此过程将不断迭代，直到找到非十六进制字符
  Buffer buffer = new Buffer() .writeUtf8("ffff CAFEBABE 10"); assertEquals(65535L, buffer.readHexadecimalUnsignedLong()); assertEquals(' ', buffer.readByte()); assertEquals(0xcafebabeL, buffer.readHexadecimalUnsignedLong()); assertEquals(' ', buffer.readByte()); assertEquals(0x10L, buffer.readHexadecimalUnsignedLong());
  Specified by:
  
  readHexadecimalUnsignedLong in interface BufferSource
  
  Returns:
  
  the long
- readByteString
  
  public ByteString readByteString()
  
  Description copied from interface: BufferSource
  
  从中删除所有字节并将它们作为字节字符串返回
  
  Specified by:
  
  readByteString in interface BufferSource
  
  Returns:
  
  the ByteString
- readByteString
  
  public ByteString readByteString(long byteCount) throws EOFException
  
  Description copied from interface: BufferSource
  
  从中删除 byteCount 个字节并将其作为字节字符串返回。
  
  Specified by:
  
  readByteString in interface BufferSource
  
  Returns:
  
  the ByteString
  
  Throws:
  
  EOFException
- select
  
  public int select(SegmentBuffer segmentBuffer)
  
  Description copied from interface: BufferSource
  在options 中查找第一个作为此缓冲区前缀的字符串，从此缓冲区中使用它，并返回其索引。如果 options 中没有字节字符串是此缓冲区的前缀，则返回 -1，并且不消耗任何字节。如果事先知道预期值集，则可以将其用作 BufferSource.readByteString() 甚至 BufferSource.readUtf8() 的替代。
  Options FIELDS = Options.of( ByteString.encodeUtf8("depth="), ByteString.encodeUtf8("height="), ByteString.encodeUtf8("width=")); Buffer buffer = new Buffer() .writeUtf8("width=640\n") .writeUtf8("height=480\n"); assertEquals(2, buffer.select(FIELDS)); assertEquals(640, buffer.readDecimalLong()); assertEquals('\n', buffer.readByte()); assertEquals(1, buffer.select(FIELDS)); assertEquals(480, buffer.readDecimalLong()); assertEquals('\n', buffer.readByte());
  Specified by:
  
  select in interface BufferSource
  
  Parameters:
  
  segmentBuffer - 索引值
  
  Returns:
  
  the int
- selectPrefix
  
  public int selectPrefix(SegmentBuffer segmentBuffer, boolean selectTruncated)
  
  返回此缓冲区前缀的选项中的值的索引。如果没有找到值，则返回-1 此方法执行两个同步迭代:迭代trie和迭代这个缓冲区。当它在trie中到达一个结果时，当它在trie中不匹配时，以及当缓冲区耗尽时，它将返回
  
  Parameters:
  
  selectTruncated - 如果可能的结果出现但被截断，则true返回-2 例如，如果缓冲区包含[ab]，并且选项是[abc, abd]，则返回-2 请注意，由于选项是按优先顺序列出的，而且第一个选项可能是另一个选项的前缀，这使得情况变得复杂。例如，如果缓冲区包含[ab]而选项是[abc, a]，则返回-2
- readFully
  
  public void readFully(Buffer sink, long byteCount) throws EOFException
  
  Description copied from interface: BufferSource
  
  从中删除精确的 byteCount 个字节并将其附加到 sink。如果无法读取请求的字节数，则抛出 EOFException。
  
  Specified by:
  
  readFully in interface BufferSource
  
  Parameters:
  
  sink - 字节集合
  
  byteCount - 字节数
  
  Throws:
  
  EOFException
- readAll
  
  public long readAll(Sink sink) throws IOException
  
  Description copied from interface: BufferSource
  
  从中删除所有字节并将其附加到 sink。返回写入 sink 的总字节数，如果已用尽，则为 0。
  
  Specified by:
  
  readAll in interface BufferSource
  
  Parameters:
  
  sink - 字节集合
  
  Returns:
  
  the long
  
  Throws:
  
  IOException - 异常
- readUtf8
  
  public String readUtf8()
  
  Description copied from interface: BufferSource
  从中删除所有字节，将其解码为 UTF-8，然后返回字符串。如果此源为空，则返回空字符串。
  Buffer buffer = new Buffer() .writeUtf8("Uh uh uh!") .writeByte(' ') .writeUtf8("You didn't say the magic word!"); assertEquals("Uh uh uh! You didn't say the magic word!", buffer.readUtf8()); assertEquals(0, buffer.size()); assertEquals("", buffer.readUtf8()); assertEquals(0, buffer.size());
  Specified by:
  
  readUtf8 in interface BufferSource
  
  Returns:
  
  the string
- readUtf8
  
  public String readUtf8(long byteCount) throws EOFException
  
  Description copied from interface: BufferSource
  从中删除 byteCount 个字节，将其解码为 UTF-8，并返回字符串。
  Buffer buffer = new Buffer() .writeUtf8("Uh uh uh!") .writeByte(' ') .writeUtf8("You didn't say the magic word!"); assertEquals(40, buffer.size()); assertEquals("Uh uh uh! You ", buffer.readUtf8(14)); assertEquals(26, buffer.size()); assertEquals("didn't say the", buffer.readUtf8(14)); assertEquals(12, buffer.size()); assertEquals(" magic word!", buffer.readUtf8(12)); assertEquals(0, buffer.size());
  Specified by:
  
  readUtf8 in interface BufferSource
  
  Parameters:
  
  byteCount - 字节数
  
  Returns:
  
  the string
  
  Throws:
  
  EOFException
- readString
  
  public String readString(Charset charset)
  
  Description copied from interface: BufferSource
  
  从中删除所有字节，将其解码为charset，并返回字符串。
  
  Specified by:
  
  readString in interface BufferSource
  
  Parameters:
  
  charset - 字符编码
  
  Returns:
  
  the string
- readString
  
  public String readString(long byteCount, Charset charset) throws EOFException
  
  Description copied from interface: BufferSource
  
  从中删除 byteCount 个字节，将其解码为 charset，并返回字符串。
  
  Specified by:
  
  readString in interface BufferSource
  
  Parameters:
  
  byteCount - 字节数
  
  charset - 字符编码
  
  Returns:
  
  the string
  
  Throws:
  
  EOFException
- readUtf8Line
  
  public String readUtf8Line() throws EOFException
  
  Description copied from interface: BufferSource
  删除并返回直到下一个换行符（但不包括该换行符）的字符。换行符为 "\n" 或 "\r\n"；这些字符不包含在结果中。
  Buffer buffer = new Buffer() .writeUtf8("I'm a hacker!\n") .writeUtf8("That's what I said: you're a nerd.\n") .writeUtf8("I prefer to be called a hacker!\n"); assertEquals(81, buffer.size()); assertEquals("I'm a hacker!", buffer.readUtf8Line()); assertEquals(67, buffer.size()); assertEquals("That's what I said: you're a nerd.", buffer.readUtf8Line()); assertEquals(32, buffer.size()); assertEquals("I prefer to be called a hacker!", buffer.readUtf8Line()); assertEquals(0, buffer.size()); assertEquals(null, buffer.readUtf8Line()); assertEquals(0, buffer.size());
  在流的末尾，此方法返回 null， 就像 BufferedReader 一样。如果源未以换行符结尾，则假定为隐式换行符。一旦源耗尽，将返回 Null。将此方法用于人工生成的数据，其中尾随换行符是可选的。
  Specified by:
  
  readUtf8Line in interface BufferSource
  
  Returns:
  
  the string
  
  Throws:
  
  EOFException
- readUtf8LineStrict
  
  public String readUtf8LineStrict() throws EOFException
  
  Description copied from interface: BufferSource
  
  删除并返回直到下一个换行符（但不包括该换行符）的字符。换行符为 "\n" 或 "\r\n"；这些字符不包含在结果中
  
  Specified by:
  
  readUtf8LineStrict in interface BufferSource
  
  Returns:
  
  the string
  
  Throws:
  
  EOFException
- readUtf8LineStrict
  
  public String readUtf8LineStrict(long limit) throws EOFException
  
  Description copied from interface: BufferSource
  与 BufferSource.readUtf8LineStrict() 类似，不同之处在于它允许调用者指定允许的最长匹配。使用它来防止可能不包含 "\n" 或 "\r\n" 的流。
  Buffer buffer = new Buffer(); buffer.writeUtf8("12345\r\n"); // This will throw! There must be \r\n or \n at the limit or before it. buffer.readUtf8LineStrict(4); // No bytes have been consumed so the caller can retry. assertEquals("12345", buffer.readUtf8LineStrict(5));
  Specified by:
  
  readUtf8LineStrict in interface BufferSource
  
  Parameters:
  
  limit - 限制
  
  Returns:
  
  the string
  
  Throws:
  
  EOFException
- readUtf8Line
  
  public String readUtf8Line(long newline) throws EOFException
  
  Throws:
  
  EOFException
- readUtf8CodePoint
  
  public int readUtf8CodePoint() throws EOFException
  
  Description copied from interface: BufferSource
  
  删除并返回单个 UTF-8 代码点，根据需要读取 1 到 4 个字节。如果此源不是以正确编码的 UTF-8 代码点开头，则此方法将删除 1 个或多个非 UTF-8 字节并返回替换字符 (U+FFFD)。这包括编码问题（输入不是正确编码的 UTF-8）、字符超出范围（超出 Unicode 的 0x10ffff 限制）、UTF-16 代理的代码点 (U+d800..U+dfff) 和过长编码（例如，修改版 UTF-8 中的 NUL 字符为 0xc080）
  
  Specified by:
  
  readUtf8CodePoint in interface BufferSource
  
  Returns:
  
  the int
  
  Throws:
  
  EOFException
- readByteArray
  
  public byte[] readByteArray()
  
  Description copied from interface: BufferSource
  
  从中删除所有字节并将它们作为字节数组返回。
  
  Specified by:
  
  readByteArray in interface BufferSource
  
  Returns:
  
  the byte
- readByteArray
  
  public byte[] readByteArray(long byteCount) throws EOFException
  
  Description copied from interface: BufferSource
  
  从中删除 byteCount 个字节并将其作为字节数组返回。
  
  Specified by:
  
  readByteArray in interface BufferSource
  
  Returns:
  
  the byte
  
  Throws:
  
  EOFException
- read
  
  public int read(byte[] sink)
  
  Description copied from interface: BufferSource
  
  从中移除最多 sink.length 个字节并将其复制到 sink。返回读取的字节数，如果此源已耗尽，则返回 -1。
  
  Specified by:
  
  read in interface BufferSource
  
  Parameters:
  
  sink - 字节集合
  
  Returns:
  
  the int
- readFully
  
  public void readFully(byte[] sink) throws EOFException
  
  Description copied from interface: BufferSource
  
  从中删除恰好 sink.length 个字节并将其复制到 sink。如果无法读取请求的字节数，则抛出 EOFException。
  
  Specified by:
  
  readFully in interface BufferSource
  
  Parameters:
  
  sink - 字节集合
  
  Throws:
  
  EOFException
- read
  
  public int read(byte[] sink, int offset, int byteCount)
  
  Description copied from interface: BufferSource
  
  从此处删除最多 byteCount 个字节并将其复制到 offset 处的 sink。返回读取的字节数，如果此源已耗尽，则返回 -1。
  
  Specified by:
  
  read in interface BufferSource
  
  Parameters:
  
  sink - 字节集合
  
  offset - 偏移位
  
  byteCount - 字节数
  
  Returns:
  
  the int
- read
  
  public int read(ByteBuffer sink) throws IOException
  
  Specified by:
  
  read in interface ReadableByteChannel
  
  Throws:
  
  IOException
- clear
  
  public final void clear()
  
  丢弃此缓冲区中的所有字节。在使用完缓冲区后调用此方法将把它的段返回到池中
- skip
  
  public void skip(long byteCount) throws EOFException
  
  从这个缓冲区的头部丢弃byteCount字节.
  
  Specified by:
  
  skip in interface BufferSource
  
  Parameters:
  
  byteCount - 字节数
  
  Throws:
  
  EOFException
- write
  
  public Buffer write(ByteString byteString)
  
  Specified by:
  
  write in interface BufferSink
- writeUtf8
  
  public Buffer writeUtf8(String string)
  
  Description copied from interface: BufferSink
  Encodes string in UTF-8 and writes it to this sink.
  Buffer buffer = new Buffer(); buffer.writeUtf8("Uh uh uh!"); buffer.writeByte(' '); buffer.writeUtf8("You didn't say the magic word!"); assertEquals("Uh uh uh! You didn't say the magic word!", buffer.readUtf8());
  Specified by:
  
  writeUtf8 in interface BufferSink
- writeUtf8
  
  public Buffer writeUtf8(String string, int beginIndex, int endIndex)
  
  Description copied from interface: BufferSink
  Encodes the characters at beginIndex up to endIndex from string in UTF-8 and writes it to this sink.
  Buffer buffer = new Buffer(); buffer.writeUtf8("I'm a hacker!\n", 6, 12); buffer.writeByte(' '); buffer.writeUtf8("That's what I said: you're a nerd.\n", 29, 33); buffer.writeByte(' '); buffer.writeUtf8("I prefer to be called a hacker!\n", 24, 31); assertEquals("hacker nerd hacker!", buffer.readUtf8());
  Specified by:
  
  writeUtf8 in interface BufferSink
- writeUtf8CodePoint
  
  public Buffer writeUtf8CodePoint(int codePoint)
  
  Description copied from interface: BufferSink
  
  Encodes codePoint in UTF-8 and writes it to this sink.
  
  Specified by:
  
  writeUtf8CodePoint in interface BufferSink
- writeString
  
  public Buffer writeString(String string, Charset charset)
  
  Description copied from interface: BufferSink
  
  Encodes string in charset and writes it to this sink.
  
  Specified by:
  
  writeString in interface BufferSink
- writeString
  
  public Buffer writeString(String string, int beginIndex, int endIndex, Charset charset)
  
  Description copied from interface: BufferSink
  
  Encodes the characters at beginIndex up to endIndex from string in charset and writes it to this sink.
  
  Specified by:
  
  writeString in interface BufferSink
- write
  
  public Buffer write(byte[] source)
  
  Description copied from interface: BufferSink
  
  Like OutputStream.write(byte[]), this writes a complete byte array to this sink.
  
  Specified by:
  
  write in interface BufferSink
- write
  
  public Buffer write(byte[] source, int offset, int byteCount)
  
  Description copied from interface: BufferSink
  
  Like OutputStream.write(byte[], int, int), this writes byteCount bytes of source, starting at offset.
  
  Specified by:
  
  write in interface BufferSink
- write
  
  public int write(ByteBuffer source) throws IOException
  
  Specified by:
  
  write in interface WritableByteChannel
  
  Throws:
  
  IOException
- writeAll
  
  public long writeAll(Source source) throws IOException
  
  Description copied from interface: BufferSink
  
  Removes all bytes from source and appends them to this sink. Returns the number of bytes read which will be 0 if source is exhausted.
  
  Specified by:
  
  writeAll in interface BufferSink
  
  Throws:
  
  IOException
- write
  
  public BufferSink write(Source source, long byteCount) throws IOException
  
  Description copied from interface: BufferSink
  
  Removes byteCount bytes from source and appends them to this sink.
  
  Specified by:
  
  write in interface BufferSink
  
  Throws:
  
  IOException
- writeByte
  
  public Buffer writeByte(int b)
  
  Description copied from interface: BufferSink
  
  Writes a byte to this sink.
  
  Specified by:
  
  writeByte in interface BufferSink
- writeShort
  
  public Buffer writeShort(int s)
  
  Description copied from interface: BufferSink
  Writes a big-endian short to this sink using two bytes.
  Buffer buffer = new Buffer(); buffer.writeShort(32767); buffer.writeShort(15); assertEquals(4, buffer.size()); assertEquals((byte) 0x7f, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x0f, buffer.readByte()); assertEquals(0, buffer.size());
  Specified by:
  
  writeShort in interface BufferSink
- writeShortLe
  
  public Buffer writeShortLe(int s)
  
  Description copied from interface: BufferSink
  Writes a little-endian short to this sink using two bytes.
  Buffer buffer = new Buffer(); buffer.writeShortLe(32767); buffer.writeShortLe(15); assertEquals(4, buffer.size()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0x7f, buffer.readByte()); assertEquals((byte) 0x0f, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals(0, buffer.size());
  Specified by:
  
  writeShortLe in interface BufferSink
- writeInt
  
  public Buffer writeInt(int i)
  
  Description copied from interface: BufferSink
  Writes a big-endian int to this sink using four bytes.
  Buffer buffer = new Buffer(); buffer.writeInt(2147483647); buffer.writeInt(15); assertEquals(8, buffer.size()); assertEquals((byte) 0x7f, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x0f, buffer.readByte()); assertEquals(0, buffer.size());
  Specified by:
  
  writeInt in interface BufferSink
- writeIntLe
  
  public Buffer writeIntLe(int i)
  
  Description copied from interface: BufferSink
  Writes a little-endian int to this sink using four bytes.
  Buffer buffer = new Buffer(); buffer.writeIntLe(2147483647); buffer.writeIntLe(15); assertEquals(8, buffer.size()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0x7f, buffer.readByte()); assertEquals((byte) 0x0f, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals(0, buffer.size());
  Specified by:
  
  writeIntLe in interface BufferSink
- writeLong
  
  public Buffer writeLong(long v)
  
  Description copied from interface: BufferSink
  Writes a big-endian long to this sink using eight bytes.
  Buffer buffer = new Buffer(); buffer.writeLong(9223372036854775807L); buffer.writeLong(15); assertEquals(16, buffer.size()); assertEquals((byte) 0x7f, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x0f, buffer.readByte()); assertEquals(0, buffer.size());
  Specified by:
  
  writeLong in interface BufferSink
- writeLongLe
  
  public Buffer writeLongLe(long v)
  
  Description copied from interface: BufferSink
  Writes a little-endian long to this sink using eight bytes.
  Buffer buffer = new Buffer(); buffer.writeLongLe(9223372036854775807L); buffer.writeLongLe(15); assertEquals(16, buffer.size()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0xff, buffer.readByte()); assertEquals((byte) 0x7f, buffer.readByte()); assertEquals((byte) 0x0f, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals((byte) 0x00, buffer.readByte()); assertEquals(0, buffer.size());
  Specified by:
  
  writeLongLe in interface BufferSink
- writeDecimalLong
  
  public Buffer writeDecimalLong(long v)
  
  Description copied from interface: BufferSink
  Writes a long to this sink in signed decimal form (i.e., as a string in base 10).
  Buffer buffer = new Buffer(); buffer.writeDecimalLong(8675309L); buffer.writeByte(' '); buffer.writeDecimalLong(-123L); buffer.writeByte(' '); buffer.writeDecimalLong(1L); assertEquals("8675309 -123 1", buffer.readUtf8());
  Specified by:
  
  writeDecimalLong in interface BufferSink
- writeHexadecimalUnsignedLong
  
  public Buffer writeHexadecimalUnsignedLong(long v)
  
  Description copied from interface: BufferSink
  Writes a long to this sink in hexadecimal form (i.e., as a string in base 16).
  Buffer buffer = new Buffer(); buffer.writeHexadecimalUnsignedLong(65535L); buffer.writeByte(' '); buffer.writeHexadecimalUnsignedLong(0xcafebabeL); buffer.writeByte(' '); buffer.writeHexadecimalUnsignedLong(0x10L); assertEquals("ffff cafebabe 10", buffer.readUtf8());
  Specified by:
  
  writeHexadecimalUnsignedLong in interface BufferSink
- writableSegment
  
  public SectionBuffer writableSegment(int minimumCapacity)
  
  Parameters:
  
  minimumCapacity - int
  
  Returns:
  
  segment SectionBuffer Returns a tail segment that we can write at least minimumCapacity bytes to, creating it if necessary.
- write
  
  public void write(Buffer source, long byteCount)
  
  Description copied from interface: Sink
  
  Removes byteCount bytes from source and appends them to this.
  
  Specified by:
  
  write in interface Sink
- read
  
  public long read(Buffer sink, long byteCount)
  
  Description copied from interface: Source
  
  从中删除至少1个字节，最多为byteCount字节，并将它们附加到sink。返回读取的字节数，如果该源已耗尽，则返回-1
  
  Specified by:
  
  read in interface Source
  
  Parameters:
  
  sink - 缓冲
  
  byteCount - 长度大小
  
  Returns:
  
  the long
- indexOf
  
  public long indexOf(byte b)
  
  Description copied from interface: BufferSource
  
  Equivalent to indexOf(b, 0).
  
  Specified by:
  
  indexOf in interface BufferSource
  
  Parameters:
  
  b -
  
  Returns:
  
  the long
- indexOf
  
  public long indexOf(byte b, long fromIndex)
  
  Returns the index of b in this at or beyond fromIndex, or -1 if this buffer does not contain b in that range.
  
  Specified by:
  
  indexOf in interface BufferSource
  
  Parameters:
  
  b -
  
  fromIndex -
  
  Returns:
  
  the long
- indexOf
  
  public long indexOf(byte b, long fromIndex, long toIndex)
  
  Description copied from interface: BufferSource
  
  如果在 fromIndex 到 toIndex 范围内找到 b，则返回其索引。如果未找到 b，或者 fromIndex == toIndex，则返回 -1。
  
  Specified by:
  
  indexOf in interface BufferSource
  
  Parameters:
  
  b - 字节
  
  fromIndex - 开始索引
  
  toIndex - 目标索引
  
  Returns:
  
  the long
- indexOf
  
  public long indexOf(ByteString bytes) throws IOException
  
  Description copied from interface: BufferSource
  
  相当于indexOf(bytes, 0)。
  
  Specified by:
  
  indexOf in interface BufferSource
  
  Parameters:
  
  bytes - 字节
  
  Returns:
  
  the long
  
  Throws:
  
  IOException - 异常
- indexOf
  
  public long indexOf(ByteString bytes, long fromIndex) throws IOException
  
  Description copied from interface: BufferSource
  返回缓冲区中 bytes 的第一个匹配项的索引，位于 fromIndex 处或之后。这会根据需要扩展缓冲区，直到找到 bytes。这会将无限数量的字节读入缓冲区。如果在找到请求的字节之前流已耗尽，则返回 -1。
  ByteString MOVE = ByteString.encodeUtf8("move"); Buffer buffer = new Buffer(); buffer.writeUtf8("Don't move! He can't see us if we don't move."); assertEquals(6, buffer.indexOf(MOVE)); assertEquals(40, buffer.indexOf(MOVE, 12));
  Specified by:
  
  indexOf in interface BufferSource
  
  Parameters:
  
  bytes - 字节
  
  fromIndex - 字节索引
  
  Returns:
  
  the long
  
  Throws:
  
  IOException - 异常
- indexOfElement
  
  public long indexOfElement(ByteString targetBytes)
  
  Description copied from interface: BufferSource
  
  相当于indexOfElement(targetBytes, 0)。
  
  Specified by:
  
  indexOfElement in interface BufferSource
  
  Parameters:
  
  targetBytes - 目标字节
  
  Returns:
  
  the long
- indexOfElement
  
  public long indexOfElement(ByteString targetBytes, long fromIndex)
  
  Description copied from interface: BufferSource
  返回此缓冲区中位于 fromIndex 或之后且包含 targetBytes 中任意字节的第一个索引。这会根据需要扩展缓冲区，直到找到目标字节。这会将无限数量的字节读入缓冲区。如果在找到请求的字节之前流已耗尽，则返回 -1。
  ByteString ANY_VOWEL = ByteString.encodeUtf8("AEOIUaeoiu"); Buffer buffer = new Buffer(); buffer.writeUtf8("Dr. Alan Grant"); assertEquals(4, buffer.indexOfElement(ANY_VOWEL)); // 'A' in 'Alan'. assertEquals(11, buffer.indexOfElement(ANY_VOWEL, 9)); // 'a' in 'Grant'.
  Specified by:
  
  indexOfElement in interface BufferSource
  
  Parameters:
  
  targetBytes - 目标字节
  
  fromIndex - 开始索引
  
  Returns:
  
  the long
- rangeEquals
  
  public boolean rangeEquals(long offset, ByteString bytes)
  
  Description copied from interface: BufferSource
  如果此源中 offset 处的字节等于 bytes，则返回 true。这会根据需要扩展缓冲区，直到某个字节不匹配、所有字节都匹配，或者在足够的字节确定匹配之前流已耗尽。
  ByteString simonSays = ByteString.encodeUtf8("Simon says:"); Buffer standOnOneLeg = new Buffer().writeUtf8("Simon says: Stand on one leg."); assertTrue(standOnOneLeg.rangeEquals(0, simonSays)); Buffer payMeMoney = new Buffer().writeUtf8("Pay me $1,000,000."); assertFalse(payMeMoney.rangeEquals(0, simonSays));
  Specified by:
  
  rangeEquals in interface BufferSource
  
  Parameters:
  
  offset - 偏移量
  
  bytes - 字节
  
  Returns:
- rangeEquals
  
  public boolean rangeEquals(long offset, ByteString bytes, int bytesOffset, int byteCount)
  
  Description copied from interface: BufferSource
  
  如果此源中 offset 处的 byteCount 个字节等于 bytesOffset 处的 bytes，则返回 true。这会根据需要扩展缓冲区，直到某个字节不匹配、所有字节都匹配，或者在足够的字节确定匹配之前流已耗尽。
  
  Specified by:
  
  rangeEquals in interface BufferSource
  
  Parameters:
  
  offset - 偏移量
  
  bytes - 字节
  
  bytesOffset - 字节偏移量
  
  byteCount - 字节数
  
  Returns:
  
  the true/false
- flush
  
  public void flush()
  
  Description copied from interface: BufferSink
  Writes all buffered data to the underlying sink, if one exists. Then that sink is recursively flushed which pushes data as far as possible towards its ultimate destination. Typically that destination is a network socket or file.
  BufferedSink b0 = new Buffer(); BufferedSink b1 = Okio.buffer(b0); BufferedSink b2 = Okio.buffer(b1); b2.writeUtf8("hello"); assertEquals(5, b2.buffer().size()); assertEquals(0, b1.buffer().size()); assertEquals(0, b0.buffer().size()); b2.flush(); assertEquals(0, b2.buffer().size()); assertEquals(0, b1.buffer().size()); assertEquals(5, b0.buffer().size());
  Specified by:
  
  flush in interface BufferSink
  
  Specified by:
  
  flush in interface Flushable
  
  Specified by:
  
  flush in interface Sink
- isOpen
  
  public boolean isOpen()
  
  Specified by:
  
  isOpen in interface Channel
- close
  
  public void close()
  
  Description copied from interface: Source
  
  关闭此源并释放此源持有的资源. 读取闭源是一个错误。多次关闭源是安全的.
  
  Specified by:
  
  close in interface AutoCloseable
  
  Specified by:
  
  close in interface Channel
  
  Specified by:
  
  close in interface Closeable
  
  Specified by:
  
  close in interface Sink
  
  Specified by:
  
  close in interface Source
- timeout
  
  public Timeout timeout()
  
  Description copied from interface: Source
  
  返回此源的超时时间.
  
  Specified by:
  
  timeout in interface Sink
  
  Specified by:
  
  timeout in interface Source
  
  Returns:
  
  超时时间
- md5
  
  public ByteString md5()
  
  Returns:
  
  the 128-bit MD5 hash of this buffer.
- sha1
  
  public ByteString sha1()
  
  Returns:
  
  the 160-bit SHA-1 hash of this buffer.
- sha256
  
  public ByteString sha256()
  
  Returns:
  
  the 256-bit SHA-256 hash of this buffer.
- sha512
  
  public ByteString sha512()
  
  Returns:
  
  the 512-bit SHA-512 hash of this buffer.
- hmacSha1
  
  public ByteString hmacSha1(ByteString key)
  
  Parameters:
  
  key - ByteString
  
  Returns:
  
  the 160-bit SHA-1 HMAC of this buffer.
- hmacSha256
  
  public ByteString hmacSha256(ByteString key)
  
  Parameters:
  
  key - ByteString
  
  Returns:
  
  the 256-bit SHA-256 HMAC of this buffer.
- hmacSha512
  
  public final ByteString hmacSha512(ByteString key)
  
  Parameters:
  
  key - ByteString
  
  Returns:
  
  the 512-bit SHA-512 HMAC of this buffer.
- equals
  
  public boolean equals(Object o)
  
  Overrides:
  
  equals in class Object
- hashCode
  
  public int hashCode()
  
  Overrides:
  
  hashCode in class Object
- toString
  
  public String toString()
  
  Returns a human-readable string that describes the contents of this buffer. Typically this is a string like [text=Hello] or [hex=0000ffff].
  
  Overrides:
  
  toString in class Object
- clone
  
  public Buffer clone()
  
  Returns a deep copy of this buffer.
  
  Overrides:
  
  clone in class Object
- snapshot
  
  public ByteString snapshot()
  
  Returns an immutable copy of this buffer as a byte string.
- snapshot
  
  public ByteString snapshot(int byteCount)
  
  Returns an immutable copy of the first byteCount bytes of this buffer as a byte string.
- readUnsafe
  
  public Buffer.UnsafeCursor readUnsafe()
- readUnsafe
  
  public Buffer.UnsafeCursor readUnsafe(Buffer.UnsafeCursor unsafeCursor)
- readAndWriteUnsafe
  
  public Buffer.UnsafeCursor readAndWriteUnsafe()
- readAndWriteUnsafe
  
  public Buffer.UnsafeCursor readAndWriteUnsafe(Buffer.UnsafeCursor unsafeCursor)

Class Buffer

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Details

REPLACEMENT_CHARACTER

head

size

Constructor Details

Buffer

Method Details

size

buffer

getBuffer

outputStream

emitCompleteSegments

emit

exhausted

require

request

peek

inputStream

copyTo

copyTo

copyTo

writeTo

writeTo

readFrom

readFrom

completeSegmentByteCount

readByte

getByte

readShort

readInt

readLong

readShortLe

readIntLe

readLongLe

readDecimalLong

readHexadecimalUnsignedLong

readByteString

readByteString

select

selectPrefix

readFully

readAll

readUtf8

readUtf8

readString

readString

readUtf8Line

readUtf8LineStrict

readUtf8LineStrict

readUtf8Line

readUtf8CodePoint

readByteArray

readByteArray

read

readFully

read

read

clear

skip

write

writeUtf8

writeUtf8

writeUtf8CodePoint

writeString

writeString

write

write

write

writeAll

write

writeByte

writeShort

writeShortLe

writeInt