Class LinkedDataReader

java.lang.Object

cool.scx.io.data_reader.LinkedDataReader

All Implemented Interfaces:

DataReader

Direct Known Subclasses:

PowerfulLinkedDataReader

public class LinkedDataReader
extends Object
implements DataReader

LinkedDataReader

Version:

0.0.1

Author:

scx567888

Field Summary

Fields

Modifier and Type	Field	Description
final DataSupplier	dataSupplier
DataNode	head
DataNode	tail

Constructor Summary

Constructors

Constructor	Description
LinkedDataReader()
LinkedDataReader(DataSupplier dataSupplier)

Method Summary

Modifier and Type	Method	Description
void	appendData(DataNode data)
boolean	ensureAvailable()
void	ensureAvailableOrThrow()
long	indexOf(byte[] pattern, long maxLength)	查找 指定字节数组 第一次出现的 index (指针不会移动)
long	indexOf(byte b, long maxLength)	查找 指定字节 第一次出现的 index (指针不会移动)
long	indexOf(DataIndexer indexer, long max)
byte	peek()	向 dataConsumer 写入指定长度字节 (指针不会移动) 当没有更多的数据时会抛出异常
byte[]	peek(int maxLength)	读取指定长度字节 (指针不会移动) 当没有更多的数据时会抛出异常
void	peek(DataConsumer dataConsumer, long maxLength)	向 outputStream 写入指定长度字节 (指针不会移动) 当没有更多的数据时会抛出异常
boolean	pullData()
byte	read()	读取单个字节 (指针会移动) 当没有更多的数据时会抛出异常
byte[]	read(int maxLength)	读取字节 (指针会移动) 当没有更多的数据时会抛出异常
void	read(DataConsumer dataConsumer, long maxLength)	向 dataConsumer 写入指定长度字节 (指针会移动) 当没有更多的数据时会抛出异常
void	skip(long length)	向后移动指定字节
void	walk(DataConsumer consumer, long maxLength, boolean movePointer)

Methods inherited from class java.lang.Object

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

Methods inherited from interface cool.scx.io.data_reader.DataReader

indexOf, indexOf, peekUntil, peekUntil, peekUntil, peekUntil, readUntil, readUntil, readUntil, readUntil

Field Details

dataSupplier

public final DataSupplier dataSupplier

head

public DataNode head

tail

public DataNode tail

Constructor Details

LinkedDataReader

public LinkedDataReader(DataSupplier dataSupplier)

LinkedDataReader

public LinkedDataReader()

Method Details

appendData

public void appendData(DataNode data)

pullData

public boolean pullData()

ensureAvailable

public boolean ensureAvailable()

ensureAvailableOrThrow

public void ensureAvailableOrThrow()
                            throws NoMoreDataException

Throws:

NoMoreDataException

walk

public void walk(DataConsumer consumer,
 long maxLength,
 boolean movePointer)

indexOf

public long indexOf(DataIndexer indexer,
 long max)
             throws NoMatchFoundException

Throws:

NoMatchFoundException

read

public byte read()
          throws NoMoreDataException

Description copied from interface: DataReader

读取单个字节 (指针会移动) 当没有更多的数据时会抛出异常

Specified by:

read in interface DataReader

Returns:

byte

Throws:

NoMoreDataException - 没有更多数据时抛出

read

public byte[] read(int maxLength)
            throws NoMoreDataException

Description copied from interface: DataReader

读取字节 (指针会移动) 当没有更多的数据时会抛出异常

Specified by:

read in interface DataReader

Parameters:

maxLength - 最大长度

Returns:

bytes

Throws:

NoMoreDataException - 没有更多数据时抛出

read

public void read(DataConsumer dataConsumer,
 long maxLength)
          throws NoMoreDataException

Description copied from interface: DataReader

向 dataConsumer 写入指定长度字节 (指针会移动) 当没有更多的数据时会抛出异常

Specified by:

read in interface DataReader

Parameters:

maxLength - 最大长度

Throws:

NoMoreDataException - 没有更多数据时抛出

peek

public byte peek()
          throws NoMoreDataException

Description copied from interface: DataReader

向 dataConsumer 写入指定长度字节 (指针不会移动) 当没有更多的数据时会抛出异常

Specified by:

peek in interface DataReader

Returns:

byte

Throws:

NoMoreDataException - 没有更多数据时抛出

peek

public byte[] peek(int maxLength)
            throws NoMoreDataException

Description copied from interface: DataReader

读取指定长度字节 (指针不会移动) 当没有更多的数据时会抛出异常

Specified by:

peek in interface DataReader

Parameters:

maxLength - 最大长度

Returns:

byte

Throws:

NoMoreDataException - 没有更多数据时抛出

peek

public void peek(DataConsumer dataConsumer,
 long maxLength)
          throws NoMoreDataException

Description copied from interface: DataReader

向 outputStream 写入指定长度字节 (指针不会移动) 当没有更多的数据时会抛出异常

Specified by:

peek in interface DataReader

Parameters:

maxLength - 最大长度

Throws:

NoMoreDataException - 没有更多数据时抛出

indexOf

public long indexOf(byte b,
 long maxLength)
             throws NoMatchFoundException,
NoMoreDataException

Description copied from interface: DataReader

查找 指定字节 第一次出现的 index (指针不会移动)

Specified by:

indexOf in interface DataReader

Parameters:

b - 指定字节

maxLength - 最大长度

Returns:

index 或者 -1 (未找到)

Throws:

NoMatchFoundException - 没有匹配时抛出

NoMoreDataException

indexOf

public long indexOf(byte[] pattern,
 long maxLength)
             throws NoMatchFoundException,
NoMoreDataException

Description copied from interface: DataReader

查找 指定字节数组 第一次出现的 index (指针不会移动)

Specified by:

indexOf in interface DataReader

Parameters:

pattern - 指定字节数组

maxLength - 最大长度

Returns:

index 或者 -1 (未找到)

Throws:

NoMatchFoundException - 没有匹配时抛出

NoMoreDataException

skip

public void skip(long length)
          throws NoMoreDataException

Description copied from interface: DataReader

向后移动指定字节

Specified by:

skip in interface DataReader

Parameters:

length - 移动长度

Throws:

NoMoreDataException