/* mYxyWB
**SiteFileFetch.java jN31hDg<z
*/ G{Yz8]m
package NetFox; vb
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import java.io.*; 6e,xDr
import java.net.*; .IarkeCtb
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public class SiteFileFetch extends Thread { oF]cTAqhC.
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SiteInfoBean siteInfoBean = null; //文件信息Bean #KxbM-1=
long[] nStartPos; //开始位置 e~l#4{w
long[] nEndPos; //结束位置 ;U9J++\d<A
FileSplitterFetch[] fileSplitterFetch; //子线程对象 5xCT~y/a
long nFileLength; //文件长度 8:=n*
boolean bFirst = true; //是否第一次取文件 +Hvc_Av''
boolean bStop = false; //停止标志 sRSz}]
File tmpFile; //文件下载的临时信息 \u,}vppz
DataOutputStream output; //输出到文件的输出流 =Prb'8 W
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 1MlUG5
public SiteFileFetch(SiteInfoBean bean) throws IOException ?BA]7M(,4
{ 6W[}$#w
siteInfoBean = bean; IW=cym7
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); {n#k,b&9B
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); E>b2+;Jv
if(tmpFile.exists ()) 9,uhfb^]
{ Vj<:GRNQ,d
bFirst = false; e^p
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read_nPos(); N|N3x7=gs
} MP Z3D9
else v
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nStartPos = new long[bean.getNSplitter()]; {]_uMg#!
nEndPos = new long[bean.getNSplitter()]; [^CV>RuO
} [.se|]t7X
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} PyVC}dUAX
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public void run() 4iAZ+l5&
{ 'c2W}$q
//获得文件长度 =4V&*go*\
//分割文件 pl@O
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//实例FileSplitterFetch NBl+_/2'w
//启动FileSplitterFetch线程 OsBo+fwT
//等待子线程返回 <,o>Wx*1C
try{ W} WI; cI
if(bFirst) Lbe\@S
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nFileLength = getFileSize(); We0.3aG
if(nFileLength == -1) r/pH_@
{ Grs]d-xI
System.err.println("File Length is not known!"); mxor1P#|
} x{D yTtX<
else if(nFileLength == -2) QaUm1i#
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System.err.println("File is not access!"); bvfk
} ^,m< 9
else P96pm6H_;
{ _zlqtO
for(int i=0;i<nStartPos.length;i++) zvABU+{jD
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); HhO".GA
} oFOnjK"|F
for(int i=0;i<nEndPos.length-1;i++) %ZHP2j
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nEndPos = nStartPos[i+1]; n>@oBG)!
} >WY#4
nEndPos[nEndPos.length-1] = nFileLength; DN4$Jva
} ga?*DI8w
} (&/2\0QV
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//启动子线程 {U&.D
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fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; vJAZ%aW
for(int i=0;i<nStartPos.length;i++) !9 fz(9
{
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Ol4+_n8xj
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), >S$Z
nStartPos,nEndPos,i); ss;R8:5
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 8~5cJPi6
fileSplitterFetch.start(); a0r"N[&
} l7&$}x-
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), hiNEJ_f
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); SG6sw]x
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", j*~T1i
nEndPos = " + nFileLength); L^Jk=8
// fileSplitterFetch[nPos.length-1].start(); =zwOq(Bh W
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//等待子线程结束 (O0Urm
//int count = 0; R|i/lEq
//是否结束while循环 qI^
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boolean breakWhile = false; n3J53| %v
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while(!bStop) B"%{i-v>**
{ AT5aDEb^^
write_nPos(); c- .t>r&
Utility.sleep(500); $-[CG7VgX%
breakWhile = true; 1S@vGq}
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for(int i=0;i<nStartPos.length;i++) A*W)bZs.
{ 6e7{Iy
if(!fileSplitterFetch.bDownOver) )7_"wD`
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{ Z@hD(MS(C
breakWhile = false; YM5fyv?
break; y"Nsh>h
} a#c6[!
} ^ns@O+Fk
if(breakWhile) ZE%YXG
break; =]k {"?j
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