/* u&pLF%'EQ
**SiteFileFetch.java BB>7%~3f
*/ #yU4X\oO
package NetFox; +Pa!pj/< z
import java.io.*; ?]paAP;4
import java.net.*; )Dqv&^
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public class SiteFileFetch extends Thread { F}.Af=<Q
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SiteInfoBean siteInfoBean = null; //文件信息Bean gvsS:4N"Nq
long[] nStartPos; //开始位置 ZE}m\|$
long[] nEndPos; //结束位置 nNQ\rO
FileSplitterFetch[] fileSplitterFetch; //子线程对象 J!yc9Q
long nFileLength; //文件长度 < u^41
boolean bFirst = true; //是否第一次取文件 ! '2'db
boolean bStop = false; //停止标志 u#
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File tmpFile; //文件下载的临时信息 &s]
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DataOutputStream output; //输出到文件的输出流 egP3q5~
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) NWoZDsu
public SiteFileFetch(SiteInfoBean bean) throws IOException T,H]svN5p
{ %81tVhg
siteInfoBean = bean; `_<AZ{&&
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); qTffh{q V
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); -R&h?ec
if(tmpFile.exists ()) b_wb!_
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bFirst = false; w)!(@}vd
read_nPos(); BE3~f6 `
} HkrNh>^=
else c/g(=F__[
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nStartPos = new long[bean.getNSplitter()]; B]]M?pS
nEndPos = new long[bean.getNSplitter()]; 6j`
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} MJ92S(
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} ~t#'X8.)
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public void run() -lAA,}&+!
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//获得文件长度 ?m~x%[Vn
//分割文件 mTs[3opg
//实例FileSplitterFetch ^[id8
//启动FileSplitterFetch线程 4|XE
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//等待子线程返回 hs/nM"V
try{ 3>S.wyMR4
if(bFirst) -Mv`|odY/
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nFileLength = getFileSize(); B}?/oZW4
if(nFileLength == -1) &/7GhZRt
{ F htf4
System.err.println("File Length is not known!"); *b7v)d#
} "CZ`hx1|^
else if(nFileLength == -2) `qfVgT=2
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System.err.println("File is not access!"); Q
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} lGcHfW)Y
else $*2uI?87}:
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for(int i=0;i<nStartPos.length;i++) _xmM~q[c7p
{ !XtbZ-
nStartPos = (long)(i*(nFileLength/nStartPos.length)); ~gX@2!D5k
} jMw;`yh
for(int i=0;i<nEndPos.length-1;i++) 3$y]#L
{ 6QxLHQA
nEndPos = nStartPos[i+1]; moc_}(
} NtA}I)'SWU
nEndPos[nEndPos.length-1] = nFileLength; <'gCI Ia2
} sL!6-[N
} xE0+3@_>>
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//启动子线程 /}M@MbGM M
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; >i=O =w
for(int i=0;i<nStartPos.length;i++) %K%8
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{ [[bMYD1eO
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(),
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), @AyC0}
nStartPos,nEndPos,i); 1"!<e$&$X
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); F<^,j7@
fileSplitterFetch.start(); ^Yn6kF
} x^C,xP[#Y;
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ^ qE4:|e
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 31bKgU{
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", "@Te!.~A.
nEndPos = " + nFileLength); 6aj)Fe'2
// fileSplitterFetch[nPos.length-1].start(); NIYAcLa@n8
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//等待子线程结束
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//int count = 0; \l]jX:
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//是否结束while循环 2 3>lE}^G
boolean breakWhile = false; Z4t9q`}h
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while(!bStop) bJe^x;J9
{ 9@:&