/* <'B^z0I,
**SiteFileFetch.java A+l"
*/ }rQ*!2Y?
package NetFox; G`P+J
import java.io.*; ;8v5 qz
import java.net.*; ( 0h]<7
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public class SiteFileFetch extends Thread { |S8pq4eKJ_
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SiteInfoBean siteInfoBean = null; //文件信息Bean z? aDOh
long[] nStartPos; //开始位置 @gj5'
long[] nEndPos; //结束位置 NAU<?q<)
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Xo5L:(?K
long nFileLength; //文件长度 i,HAXPi
boolean bFirst = true; //是否第一次取文件 ,@;<u'1\G
boolean bStop = false; //停止标志 [y:LA~q
File tmpFile; //文件下载的临时信息 \'KzSkC8
DataOutputStream output; //输出到文件的输出流 QezK&iJg
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) zN:752d^+r
public SiteFileFetch(SiteInfoBean bean) throws IOException Cf N; `
{ <>Im$N ai
siteInfoBean = bean; ,rdM{ r
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); G~]BC#nB_
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 1%+^SR72
if(tmpFile.exists ()) D5p22WY
{ FN
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bFirst = false; gkdjH8(2
read_nPos(); o(zg_!P
} L }mhMxOTi
else x9e
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nStartPos = new long[bean.getNSplitter()]; d0^2<
nEndPos = new long[bean.getNSplitter()]; 'yNp J'
} P:vy
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} tFQFpbI
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public void run() Bz{
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{ /b|sv$BN
//获得文件长度 xpk|?/6
//分割文件 {;zPW!G
//实例FileSplitterFetch 4l*&3Ar
//启动FileSplitterFetch线程 v+G:,Tc"
//等待子线程返回 ;GAYcVB
try{ W#[!8d35$
if(bFirst) f/x "yUq
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nFileLength = getFileSize(); y
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if(nFileLength == -1) LcXMOT)s
{ 'w2;oO
System.err.println("File Length is not known!"); &}cie"\L
} DbN'b(+
else if(nFileLength == -2) (AYD@
{ 4=Ey\Px
System.err.println("File is not access!"); 1|VJN D
} NP8TF*5V
else /HRaX!|E#
{ 0FOf *Lz
for(int i=0;i<nStartPos.length;i++) ?MH4<7?"
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); 1%,Z&@^j
} l_c?q"X
for(int i=0;i<nEndPos.length-1;i++) lu_Gr=#O
{ CkU=0mcY
nEndPos = nStartPos[i+1]; : [y(<TLw
} m"R(_E5
nEndPos[nEndPos.length-1] = nFileLength; g8Z14'Ke
} 8##jd[o&p~
} ^U}0D^jDeE
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//启动子线程 (zBQ^97]
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; Z3dd9m#.]
for(int i=0;i<nStartPos.length;i++) B/OO$=>(
{ V1.F`3h~
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), )a\h5nQI)
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), +b+sQ<w?.
nStartPos,nEndPos,i); ~<aB-.d
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 7&4,',0VL
fileSplitterFetch.start(); L|LTsRIq
} :!$z1u8R
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), "> 3@<f>
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); +0Gep}&z.
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", Kcl$|T
nEndPos = " + nFileLength); #A;Z4jK
// fileSplitterFetch[nPos.length-1].start(); YkX=n{^
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//等待子线程结束 UD{/L"GG
//int count = 0; iC-ABOOu{l
//是否结束while循环 4:$>,D\
boolean breakWhile = false; B! V{.p
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while(!bStop) ak`)>
{ gf?^yP ;V
write_nPos(); : qRT9n$
Utility.sleep(500); ;L2bC3
breakWhile = true; LltguNM$
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for(int i=0;i<nStartPos.length;i++) moR2iyO_
{ Ib!rf:
if(!fileSplitterFetch.bDownOver) RWFf-VA?
{ G:`Jrh
breakWhile = false; VU9P\|c@<
break; Cw $^w
} \F~Cbj+'Nu
} G4' U;
if(breakWhile) Cg pT(E\E
break; m7vxzC*
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//count++; w9$8t9$|
//if(count>4) /T)n5X
// siteStop(); acQNpT
} ;
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