/* O`cu_
**SiteFileFetch.java ,J mbqOV?!
*/ ? 81X
package NetFox; ,pq{& A
import java.io.*; R*1kR|*_)
import java.net.*; *jzLFuWIG
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public class SiteFileFetch extends Thread { =He.fEy
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SiteInfoBean siteInfoBean = null; //文件信息Bean 'ul\Q`N3
long[] nStartPos; //开始位置 K8^kJSF\
long[] nEndPos; //结束位置 ly4Qg\l
FileSplitterFetch[] fileSplitterFetch; //子线程对象 0"xPX#Cvj
long nFileLength; //文件长度 rFJ[dz
boolean bFirst = true; //是否第一次取文件 %-;bu|
boolean bStop = false; //停止标志 yy2Ie
File tmpFile; //文件下载的临时信息 #
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DataOutputStream output; //输出到文件的输出流 AyE\fY5
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) Y9 r3XhVI
public SiteFileFetch(SiteInfoBean bean) throws IOException }bB`(B,m
{ h3u1K>R)
siteInfoBean = bean; ]_*S~'x
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); =lr) gj
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); K.>wQA&
if(tmpFile.exists ()) -ewQp9)G
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bFirst = false; kpfwqHT
read_nPos(); "oc$
} e[Xq
else KSs 1CF'i
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nStartPos = new long[bean.getNSplitter()]; 4cCF\&yU
nEndPos = new long[bean.getNSplitter()]; O>DNC-m)i{
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public void run() 0x)dnq\
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//获得文件长度 p{;i& HNdp
//分割文件
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//实例FileSplitterFetch >kY p%r6
//启动FileSplitterFetch线程 G`]w?Di4
//等待子线程返回 aSaAC7sFk
try{ u@ N~1@RT|
if(bFirst) k1N$+h
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nFileLength = getFileSize(); gb-{2p>}
if(nFileLength == -1) AO0!liQ
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System.err.println("File Length is not known!"); X,fu!
} A[/I#Im7
else if(nFileLength == -2) ):6-
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System.err.println("File is not access!"); Iz\1~
} Z>A{i?#m
else -$4kBYC l+
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for(int i=0;i<nStartPos.length;i++) H/cTJ9zz
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); Q .RO
} jMpa?Jp 1
for(int i=0;i<nEndPos.length-1;i++) SN]LeXesS
{ #1Z7R/
nEndPos = nStartPos[i+1]; *v #/Y9}
} \aSz2lxEHn
nEndPos[nEndPos.length-1] = nFileLength; ZCiY,;c
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} )+~E8yK
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//启动子线程 Z[IM<S9lz
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; e6P[c=m
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for(int i=0;i<nStartPos.length;i++) Rl@$xP
{ -zC]^Ho@
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), hLuJWjCV
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), yFeeG3n3
nStartPos,nEndPos,i); $p6N|p
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); Gt^d;7x]
fileSplitterFetch.start(); pt!'v$G/*
} 3IyZunFT
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Pz~q%J
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); kojG-M
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", r,'O).7
nEndPos = " + nFileLength); /7p>7q9g
// fileSplitterFetch[nPos.length-1].start(); *TnzkNN_,
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//等待子线程结束 F'BdQk3o
//int count = 0; CIQwl 6H9
//是否结束while循环 sJ6a7A8)
boolean breakWhile = false; {e9Y
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while(!bStop) vfbe$4mH
{ TA)LPBG
write_nPos(); k^*$^;z
Utility.sleep(500); 1X:&*a"5
breakWhile = true; h3 @s2 fK
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for(int i=0;i<nStartPos.length;i++) =~,l4g\
{ T|+$@o
if(!fileSplitterFetch.bDownOver) 5faj;I{%JY
{ ZLJNw0!=|t
breakWhile = false; qY}Cg0[@g
break; W78o*z[O
} wgZrrq/W|
} 3j&B(aLy
if(breakWhile) &7][@v
break; /co%:}ln
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//count++; "_)|8|gN
//if(count>4) `vEqj v
// siteStop(); b`]M|C [5
} *<dHqK`?C
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System.err.println("文件下载结束!"); 5B|,S1b
} 2FT-}w0;
catch(Exception e){e.printStackTrace ();} AfE%a-;:
} b7v dk
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//获得文件长度 ?pKN'`
public long getFileSize() Oxj(g;}
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int nFileLength = -1; F(0Z ]#+
try{ u_Zm1*'?B
URL url = new URL(siteInfoBean.getSSiteURL()); 85C#ja1&