/* Vy,DN~ag
**SiteFileFetch.java d{7+w/Zi
*/ 6f*CvW
package NetFox; H+Sz=tg5
import java.io.*; 7x4PaX(
import java.net.*; qeZ? 7#Gf
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*w&Y$8c(
public class SiteFileFetch extends Thread { Eg3q!J&Z
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SiteInfoBean siteInfoBean = null; //文件信息Bean ;VO:ph4Aj
long[] nStartPos; //开始位置 pD#rnp>WWt
long[] nEndPos; //结束位置 1^(ad;BCy
FileSplitterFetch[] fileSplitterFetch; //子线程对象 5, 6"&vU,
long nFileLength; //文件长度 }d}Ke_Q0
boolean bFirst = true; //是否第一次取文件 BKjS ,2C
boolean bStop = false; //停止标志 xx%j.zDI]
File tmpFile; //文件下载的临时信息 ` v@m-j6
DataOutputStream output; //输出到文件的输出流 &@Be2!%'9K
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) wov\kV
public SiteFileFetch(SiteInfoBean bean) throws IOException (rm?jDm
{ [}0haTYc4
siteInfoBean = bean; !NvI:C_4|
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath()));
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tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); orMwAV
if(tmpFile.exists ()) D!-g&HBTC
{
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bFirst = false; [;),\\u,d
read_nPos(); jQ^|3#L\
} S8j{V5R'
else
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{ uH- l%17
nStartPos = new long[bean.getNSplitter()]; IE/^\ M
nEndPos = new long[bean.getNSplitter()]; UIN<2F_
} *@=/qkaJaI
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} *Y7u'v
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public void run() Eq9x2
{ 3/e.38m|
//获得文件长度 V/
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//分割文件 9FYUo
//实例FileSplitterFetch F]]]y5t
//启动FileSplitterFetch线程 n QZwC
//等待子线程返回 }1i`6`y1
try{ 4,gK[ dc
if(bFirst) e9 5Lo+:f
{ j<jN05p
nFileLength = getFileSize(); d#rf5<i
if(nFileLength == -1) s;Z\Io
{ dx{bB%?Y\=
System.err.println("File Length is not known!"); u^bidd6JRn
} (G4at2YLd
else if(nFileLength == -2) # 0Q]dO
{ {19PL8B~}
System.err.println("File is not access!"); 1&evG-#<:
} sRL`dEl4l
else >xYpNtEs
{ m6&~HfwN
for(int i=0;i<nStartPos.length;i++) 2E/"hQw
{ l2rd9-T
nStartPos = (long)(i*(nFileLength/nStartPos.length)); #;qdY[v
} z] PSpUd
for(int i=0;i<nEndPos.length-1;i++) Yi+wC}
{ (\hx` Yh=>
nEndPos = nStartPos[i+1]; #crQ1p) \
} 5Y'qaIFR
nEndPos[nEndPos.length-1] = nFileLength; ~f1%8z
} lVR~Bh
} T?soJ]A
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//启动子线程 z.9U}F
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; %x{kc3PnO
for(int i=0;i<nStartPos.length;i++) m=A(NKZ
{ )c83/= <v
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), .4M.y:F
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), i,E{f
nStartPos,nEndPos,i); NI}yVV
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); [.'|_l
fileSplitterFetch.start(); \fyRsa)
} nE&