/* cG~-OHU
**SiteFileFetch.java B&RgUIrFoY
*/ '{xPdN
package NetFox; l:H}Y3_I
import java.io.*; 9`p|>d!.
import java.net.*; ]M5w!O!
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public class SiteFileFetch extends Thread { PK<+tIm\
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{ |[n>k
SiteInfoBean siteInfoBean = null; //文件信息Bean wA;Cj
long[] nStartPos; //开始位置 dCkk5&2n
long[] nEndPos; //结束位置 !*@sX7H
FileSplitterFetch[] fileSplitterFetch; //子线程对象 wio}<Y6Xz
long nFileLength; //文件长度 *eonXJYD
boolean bFirst = true; //是否第一次取文件 Au-h#YV
boolean bStop = false; //停止标志 kL1StF#p
File tmpFile; //文件下载的临时信息 J"Z=`I)KON
DataOutputStream output; //输出到文件的输出流 #N'W+M /
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) j6_tFJT
public SiteFileFetch(SiteInfoBean bean) throws IOException -@EAL:kY
{ r1)@ 7Nt
siteInfoBean = bean; #[C=LGi
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); s35`{PR
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); mWPA]g(
if(tmpFile.exists ()) yhpeP
{
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bFirst = false; z[`OYwsW
read_nPos(); d1rIU6
} 3</gK$f2
else ]F4.m
{ QwSYjR:K
nStartPos = new long[bean.getNSplitter()]; ;mAlF>6]\
nEndPos = new long[bean.getNSplitter()]; %P2l@}?a
} :|tWKA
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} DZ7<-SFU
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public void run() $ rU"Krf67
{ %H AforH
//获得文件长度 y9xvGr[l
//分割文件 PV\aQO.mo
//实例FileSplitterFetch -E(0}\
//启动FileSplitterFetch线程 cfP9b8JG
//等待子线程返回 miTySY6^
try{ Sbp].3^j
if(bFirst) f~0CpB*X
{ qLYz-P'ik
nFileLength = getFileSize(); ^.HvuG},O
if(nFileLength == -1) QK`5KB(k'
{ &{uj3s&C
System.err.println("File Length is not known!"); T{:~v+I=
} _* m<Z;Et
else if(nFileLength == -2) 00-cT9C3
{ NtfzAz/
System.err.println("File is not access!"); ~EL3I
} . \t8s0A
else y2{uEbA
{ @?vC4+'
for(int i=0;i<nStartPos.length;i++) 3HEm-pok
{ [(rT,31cW
nStartPos = (long)(i*(nFileLength/nStartPos.length)); @/,:".
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} <c77GimD?
for(int i=0;i<nEndPos.length-1;i++) M(/ATOJ(
{ >2t.7UhDI
nEndPos = nStartPos[i+1];
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} mfqnRPZ
nEndPos[nEndPos.length-1] = nFileLength; !*1$j7`tP
} bt{b%r
} VtN1 [}
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//启动子线程 2z9s$tp
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; J6I:UML
for(int i=0;i<nStartPos.length;i++) T!7B0_
{ 8g0VTY4$jP
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), X`6"^
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), IE|? &O
nStartPos,nEndPos,i); dfP4SJqq
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); XkPE%m_5D
fileSplitterFetch.start(); jQrj3*V
} vh#81}@N7*
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), B[,AR"#b
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 8<)ZpB,7
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", $<QrV,T
nEndPos = " + nFileLength); Rb!y(&>v
// fileSplitterFetch[nPos.length-1].start(); SK*z4p
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//等待子线程结束 ,v%'2[}
//int count = 0; c'.XC}
//是否结束while循环 >qz#&