Package org.aoju.bus.core.io.streams

Class QueueReader

java.lang.Object

java.io.Reader

org.aoju.bus.core.io.streams.QueueReader

All Implemented Interfaces:

Closeable, AutoCloseable, Readable

public class QueueReader
extends Reader

队列InputStream

Since:

Java 17+

Author:

Kimi Liu

Field Summary

Fields inherited from class java.io.Reader

lock

Constructor Summary

Constructors

Constructor	Description
QueueReader(Reader is)

Method Summary

Modifier and Type	Method	Description
void	close()
int	getCol()
int	getRow()
boolean	isEnd()	是否结束
int	peek()	访问头部字节, 不删除
int	peek(int index)	访问头部开始第几个字节, 不删除
int	peekNext()	访问上次peekNext访问的下个位置的字节, 未访问过则访问索引0, poll, peek后归零, 不删除
int	poll()	读取头部字节, 并删除
int	read(char[] cbuf, int off, int len)
String	readItem(char... ends)	读取一项数据
String	readLine()	读取一行
long	skip(long n)	跳过和丢弃输入流中的数据
boolean	startWith(String start)	是否以 start 开始

Methods inherited from class java.io.Reader

mark, markSupported, nullReader, read, read, read, ready, reset, transferTo

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

QueueReader

public QueueReader(Reader is)

Method Details

readItem

public String readItem(char... ends)
                throws IOException

读取一项数据

Parameters:

ends - 结束符, 默认' ', '\r', '\n'

Returns:

数据

Throws:

IOException - 异常

readLine

public String readLine()
                throws IOException

读取一行

Returns:

一行数据

Throws:

IOException - 异常

poll

public int poll()
         throws IOException

读取头部字节, 并删除

Returns:

头部字符

Throws:

IOException - 异常

peek

public int peek(int index)
         throws IOException

访问头部开始第几个字节, 不删除

Parameters:

index - 索引

Returns:

头部的第N个字符

Throws:

IOException - 异常

peekNext

public int peekNext()
             throws IOException

访问上次peekNext访问的下个位置的字节, 未访问过则访问索引0, poll, peek后归零, 不删除

Returns:

下一个位置的字符

Throws:

IOException - 异常

peek

public int peek()
         throws IOException

访问头部字节, 不删除

Returns:

头部字符

Throws:

IOException - 异常

skip

public long skip(long n)
          throws IOException

跳过和丢弃输入流中的数据

Overrides:

skip in class Reader

Throws:

IOException

isEnd

public boolean isEnd()

是否结束

Returns:

true, 如果流已经结束

read

public int read(char[] cbuf,
 int off,
 int len)
         throws IOException

Specified by:

read in class Reader

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in class Reader

Throws:

IOException

startWith

public boolean startWith(String start)
                  throws IOException

是否以 start 开始

Parameters:

start - 开始位置

Returns:

true, 如果的确以指定字符串开始

Throws:

IOException - 异常

getCol

public int getCol()

getRow

public int getRow()