/* $T0|zPK5
**SiteFileFetch.java 1P\_3.V{
*/ Z;mDMvIu (
package NetFox; ZvO:!u0+"
import java.io.*; uQ.VW/>
import java.net.*; BPd]L=,/
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public class SiteFileFetch extends Thread { <cz~q=%v2&
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SiteInfoBean siteInfoBean = null; //文件信息Bean O_PC/=m1@
long[] nStartPos; //开始位置 $mOK|=tI_
long[] nEndPos; //结束位置 [@/[#p
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Va/p
long nFileLength; //文件长度 ~+$l9~`{
boolean bFirst = true; //是否第一次取文件 k\}qCDs
boolean bStop = false; //停止标志 .9g\WH#qD|
File tmpFile; //文件下载的临时信息 c~|/,FZU'
DataOutputStream output; //输出到文件的输出流 7_/.a9$G
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) /bylA`IMW
public SiteFileFetch(SiteInfoBean bean) throws IOException `"CF/X^
{ uS|Zkuk[!
siteInfoBean = bean; u;:N 4d=f'
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); uyG4zV\h*
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); e"|9%AW@<
if(tmpFile.exists ()) :7!/FBd
{ #PA"l`"
bFirst = false; 6CU8BDN
read_nPos(); 1.H"$D>TC
} ^HL#)fK2I
else XfsCu>
{ X>|.BvY|
nStartPos = new long[bean.getNSplitter()]; N]yk<55
nEndPos = new long[bean.getNSplitter()]; knBT(x'+
} 6<t\KMd
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public void run() *G~c6BZ
{ d*>M<6b-
//获得文件长度 z4J-qK~2
//分割文件 a3lo;Cfp
//实例FileSplitterFetch :({lXGc}4?
//启动FileSplitterFetch线程 p-;]O~^
//等待子线程返回 65J'uN
try{ x{ZVq 4
if(bFirst) u X0wg
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nFileLength = getFileSize(); ohM'Fx"q
if(nFileLength == -1) c@q>5fR/c
{ l2`8]Qr
System.err.println("File Length is not known!"); U.6hLFcE
} 9 [I ro
else if(nFileLength == -2) #t(?8!F
{ H_8@J
System.err.println("File is not access!"); "a"[B'
} ld@f:Zali
else 7\/O"Ot
{ *,-YWx4
for(int i=0;i<nStartPos.length;i++) Q#g
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{ 0`ib_&yI
nStartPos = (long)(i*(nFileLength/nStartPos.length)); wc,y+C#V
} In;z\"NN4
for(int i=0;i<nEndPos.length-1;i++) uN\9cQ
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nEndPos = nStartPos[i+1]; &&<^wtznO
} t=e0z^2i+
nEndPos[nEndPos.length-1] = nFileLength; 2iG(v._x
} D@JHi'F
} -owfuS?i=
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//启动子线程 ev guw*u
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; yauP j&^R
for(int i=0;i<nStartPos.length;i++) &'](T9kg=
{ Nm081ic2<
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), gaCGU<L
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ckP3[@Su {
nStartPos,nEndPos,i); .$OInh
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 1)PR]s:-m@
fileSplitterFetch.start(); ntkinbbD
} bA^a@ lv a
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(),
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 7kwG_0QO
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", Ti/iD2g
nEndPos = " + nFileLength); p4AXQuOP
// fileSplitterFetch[nPos.length-1].start(); e-K 8K+7
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//等待子线程结束 {Jy%h8n*
//int count = 0; \rN_CBM
//是否结束while循环 bT*4Qd4W
boolean breakWhile = false; nRE}F5k
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while(!bStop) N^ET
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{ '_&(Iwu
write_nPos(); dDuA%V0
Utility.sleep(500); `x#~-
breakWhile = true; uHIWbF<0oo
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for(int i=0;i<nStartPos.length;i++) R`?^%1^N
{ Uy1xNb/d
if(!fileSplitterFetch.bDownOver) [O)Zof
{ bYgYP|@
breakWhile = false; <EUSl|6
break; 7fEV/j
} U`Ag|R
} UKBMGzu2:
if(breakWhile) Sp )}
break; "$'~=' [
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//count++; yk)j;i4@
//if(count>4) 4Qo1f5>N
// siteStop(); Xda<TX@-
} iHn]yv3
#
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System.err.println("文件下载结束!"); -:>#w`H
} 7EO&:b