/* 4(NI-|q0
**SiteFileFetch.java %o-*~GQ@B
*/ 7^1ikmYY
package NetFox; ]?2AFkF
import java.io.*; -Ac^#/[0
import java.net.*; H={,zZ11{
rqIt}(J
@0G}Q
public class SiteFileFetch extends Thread { < mxUgU
=vWnqF:
DE[y&]/C{
SiteInfoBean siteInfoBean = null; //文件信息Bean EpiagCS
long[] nStartPos; //开始位置 V}( "8L
long[] nEndPos; //结束位置 {VFpfo
FileSplitterFetch[] fileSplitterFetch; //子线程对象 aaBBI S
long nFileLength; //文件长度 ny}?+&K
boolean bFirst = true; //是否第一次取文件 6-o Qs?
boolean bStop = false; //停止标志 Y9Pb
File tmpFile; //文件下载的临时信息 D^pAf/ek@i
DataOutputStream output; //输出到文件的输出流 g$+3IVq&
=y<Fz*aA
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类)
@`T6\ 1
public SiteFileFetch(SiteInfoBean bean) throws IOException
,{%[/#~6
{ ,Vogo5~X
siteInfoBean = bean; rkD(KG9E
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 4B|f}7%\
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); + 7Z%N9
if(tmpFile.exists ()) uaS?y1:c
{ f"[C3o2P
bFirst = false; dCinbAQ
read_nPos(); __a9}m4i7x
} aW"BN 5eM>
else GK)hK-
{ 5EU3BVu&u
nStartPos = new long[bean.getNSplitter()]; <|{=O9
nEndPos = new long[bean.getNSplitter()]; Mqna0"IYx*
} {P*RA'H3G
3o1j l2n
|{$Vk%cUE
8r~4iVwg
} H6L`239u
wy7f7zIa
?&[`=ZVn
public void run() rTx]%{
{ P:Bg()
//获得文件长度 /u?^s "C/
//分割文件 5-MI7I@l
//实例FileSplitterFetch c+q4sNnE
//启动FileSplitterFetch线程 Q ml<JF
//等待子线程返回 j_k!9"bt
try{ VlKWWQj
if(bFirst) O)&V}hU*
{ Z/%>/
nFileLength = getFileSize(); Hi
)n]OE
if(nFileLength == -1) rK"x92P0
{ wz'D4B
System.err.println("File Length is not known!"); rUlXx5f
} ?8`b
else if(nFileLength == -2) d5h:py5
{ 5Ba eHzI
System.err.println("File is not access!"); SlmgFk!r!
} Z5v\[i@H!
else SoCa_9*X
{ ;XANITV
for(int i=0;i<nStartPos.length;i++) Nl0*"}`I_
{ DRal{?CH
nStartPos = (long)(i*(nFileLength/nStartPos.length)); gVb;sk^
} P#iBwmwN+.
for(int i=0;i<nEndPos.length-1;i++) yAaMYF@
{ U1I2+;"#A
nEndPos = nStartPos[i+1]; mzDbw-#
} @<h@d_8^k
nEndPos[nEndPos.length-1] = nFileLength; H>2)R7h
} \\6/"
} PKmr5FB
Y\s@'UoVN
<&B)i\j8=b
//启动子线程 G/b
$cO}
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; Uh{|@D
for(int i=0;i<nStartPos.length;i++) @?TOg{:
{ {ymD.vf=9+
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), K;Fy&p^d
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), rxt)l
nStartPos,nEndPos,i); ?nE<Aig
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); G{)2f&<
fileSplitterFetch.start(); l1nrJm8
} :W^
k3/t
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 9[T}cN=|
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); Ww:,O48%
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", Ean
#>h
nEndPos = " + nFileLength); ht)J#Di
// fileSplitterFetch[nPos.length-1].start(); ',~,hJ0
n{aD4&
NsPt1_Y8
//等待子线程结束 Zh,(/-XN;
//int count = 0; ]%pr1Ey
//是否结束while循环 8a)lrIg
boolean breakWhile = false; mSr(PIH{\
PCtf&U