Class LinkedDataReader

java.lang.Object

cool.scx.io.data_reader.LinkedDataReader

All Implemented Interfaces:

DataReader

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	markNode
int	markNodePosition
DataNode	tail

Constructor Summary

Constructors

Constructor	Description
LinkedDataReader()
LinkedDataReader(DataSupplier dataSupplier)

Method Summary

Modifier and Type	Method	Description
void	appendData(DataNode data)
long	ensureAvailable(long maxPullCount)
long	ensureAvailableOrThrow(long maxPullCount)
long	findIndex(DataIndexer indexer, long maxLength, long maxPullCount)
long	indexOf(DataIndexer indexer, long maxLength, long maxPullCount)	查找索引
int	inputStreamRead()	InputStream 写法的 read
int	inputStreamRead(byte[] b, int off, int len)	InputStream 写法的 read
byte[]	inputStreamReadNBytes(long len)	InputStream 写法的 read
long	inputStreamTransferTo(OutputStream out, long maxLength)	InputStream 写法的 TransferTo
void	mark()	标记
byte	peek()	查看单个字节 (指针会移动) 当没有更多的数据时会抛出异常
void	peek(DataConsumer dataConsumer, long maxLength, long maxPullCount)	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
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
void	read(DataConsumer dataConsumer, long maxLength, long maxPullCount)	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	reset()	重置
void	walk(DataConsumer consumer, long maxLength, boolean movePointer, long maxPullCount)

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, indexOf, indexOf, indexOf, indexOf, inputStreamTransferTo, peek, peek, peek, peekUntil, peekUntil, peekUntil, peekUntil, read, read, read, readUntil, readUntil, readUntil, readUntil, skip, skip

Field Details

dataSupplier

public final DataSupplier dataSupplier

head

public DataNode head

tail

public DataNode tail

markNode

public DataNode markNode

markNodePosition

public int markNodePosition

Constructor Details

LinkedDataReader

public LinkedDataReader(DataSupplier dataSupplier)

LinkedDataReader

public LinkedDataReader()

Method Details

appendData

public void appendData(DataNode data)

pullData

public boolean pullData()
                 throws DataSupplierException

Throws:

DataSupplierException

ensureAvailable

public long ensureAvailable(long maxPullCount)
                     throws DataSupplierException

Throws:

DataSupplierException

ensureAvailableOrThrow

public long ensureAvailableOrThrow(long maxPullCount)
                            throws NoMoreDataException,
DataSupplierException

Throws:

NoMoreDataException

DataSupplierException

walk

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

Throws:

DataSupplierException

findIndex

public long findIndex(DataIndexer indexer,
 long maxLength,
 long maxPullCount)
               throws NoMatchFoundException,
DataSupplierException

Throws:

NoMatchFoundException

DataSupplierException

read

public byte read()
          throws NoMoreDataException,
DataSupplierException

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

DataSupplierException

read

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

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:

dataConsumer - 消费者

maxLength - 最大长度

maxPullCount - 最大长度

Throws:

NoMoreDataException - 没有更多数据时抛出

DataSupplierException

peek

public byte peek()
          throws NoMoreDataException,
DataSupplierException

Description copied from interface: DataReader

查看单个字节 (指针会移动) 当没有更多的数据时会抛出异常

Specified by:

peek in interface DataReader

Returns:

byte

Throws:

NoMoreDataException - 没有更多数据时抛出

DataSupplierException

peek

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

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

Parameters:

dataConsumer - 消费者

maxLength - 最大长度

maxPullCount - 最大长度

Throws:

NoMoreDataException - 没有更多数据时抛出

DataSupplierException

indexOf

public long indexOf(DataIndexer indexer,
 long maxLength,
 long maxPullCount)
             throws NoMatchFoundException,
NoMoreDataException,
DataSupplierException

Description copied from interface: DataReader

查找索引

Specified by:

indexOf in interface DataReader

Throws:

NoMatchFoundException

NoMoreDataException

DataSupplierException

mark

public void mark()

Description copied from interface: DataReader

标记

Specified by:

mark in interface DataReader

reset

public void reset()

Description copied from interface: DataReader

重置

Specified by:

reset in interface DataReader

inputStreamRead

public int inputStreamRead()
                    throws IOException

Description copied from interface: DataReader

InputStream 写法的 read

Specified by:

inputStreamRead in interface DataReader

Throws:

IOException

inputStreamRead

public int inputStreamRead(byte[] b,
 int off,
 int len)
                    throws IOException

Description copied from interface: DataReader

InputStream 写法的 read

Specified by:

inputStreamRead in interface DataReader

Throws:

IOException

inputStreamTransferTo

public long inputStreamTransferTo(OutputStream out,
 long maxLength)
                           throws IOException

Description copied from interface: DataReader

InputStream 写法的 TransferTo

Specified by:

inputStreamTransferTo in interface DataReader

Throws:

IOException

inputStreamReadNBytes

public byte[] inputStreamReadNBytes(long len)
                             throws IOException

Description copied from interface: DataReader

InputStream 写法的 read

Specified by:

inputStreamReadNBytes in interface DataReader

Throws:

IOException