/* `9b D%M
**SiteFileFetch.java D/@:wY
*/ bLaD1rnGi
package NetFox; l3l[jDa, 2
import java.io.*; NZdQz
import java.net.*; LT2mwJl
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public class SiteFileFetch extends Thread { _y5b>+
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SiteInfoBean siteInfoBean = null; //文件信息Bean @36^4E>h
long[] nStartPos; //开始位置 M7!&gFv8
long[] nEndPos; //结束位置 (w"zI!
FileSplitterFetch[] fileSplitterFetch; //子线程对象 d3^LalAp
long nFileLength; //文件长度 Ha4?I$'$
boolean bFirst = true; //是否第一次取文件 Hdj0! bUx
boolean bStop = false; //停止标志 Hsx`P
File tmpFile; //文件下载的临时信息 Z*s/%4On
DataOutputStream output; //输出到文件的输出流 _3hCu/BV
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) :~U1JAs$
public SiteFileFetch(SiteInfoBean bean) throws IOException !=k\Rr@qx
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siteInfoBean = bean; _;X# &S(q-
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); UmInAH4
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); R1J"QU
if(tmpFile.exists ()) *A
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{ nSgg'I(
bFirst = false; Y:*mAv;&
read_nPos(); r `28fC
} a]
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else /c__{?go
{ Y5PIR9 -
nStartPos = new long[bean.getNSplitter()]; zS|%+er~zO
nEndPos = new long[bean.getNSplitter()]; ]<W1edr
} %o+bO}/9
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} Q.M3rRh
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public void run() |K/#2y~
{ P|_?{1eO2
//获得文件长度 ;?h#',(p
//分割文件 cnCUvD]'
//实例FileSplitterFetch -"!V&M
//启动FileSplitterFetch线程 J>X aQfzwU
//等待子线程返回 U5izOFc
try{ 5
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if(bFirst) fIWQ+E
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nFileLength = getFileSize(); *.voN[$~
if(nFileLength == -1) gh i!4
{ OkA-=M)RI:
System.err.println("File Length is not known!"); *% uv7G@%N
} MeP U`M--
else if(nFileLength == -2) OdwSNG
{ +<bq@.x
System.err.println("File is not access!"); McH*J j
} >,hJ5-9
else XD%?'uUQ_
{ g<}EL[9[J
for(int i=0;i<nStartPos.length;i++) P{QRmEE
{ nb0<.ICF%R
nStartPos = (long)(i*(nFileLength/nStartPos.length)); v+G}n\F
} a[ Txd=b
for(int i=0;i<nEndPos.length-1;i++) dA\>z[n=
{ }[ux4cd8Y
nEndPos = nStartPos[i+1]; ot(|t4^
} LUS7-~:F
nEndPos[nEndPos.length-1] = nFileLength; rw_&t>Ri;
} '>'h7F=tY
} PX2Ejrwj
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//启动子线程 t6-c{ZX>A
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; q2gc.]K\
for(int i=0;i<nStartPos.length;i++) !!Mp;h'}-
{ #8nF8J<4
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), pMa 3R3a
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), glk
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nStartPos,nEndPos,i); Zb);08X
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); S)JZb_
fileSplitterFetch.start(); jcx/ZR
} >`,v?<>+
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), [.dNX
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ,,BNUj/:
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", lh?mN3-*
nEndPos = " + nFileLength); 0FTiTrTn
// fileSplitterFetch[nPos.length-1].start(); y~ ^>my7G
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//等待子线程结束 >2$Ehw:K^
//int count = 0; [HQ17
//是否结束while循环 9n8;eE08
boolean breakWhile = false; P]dDTh~e~
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while(!bStop) ~}4H=[Zu
{ S$muV9z2=
write_nPos(); mpr["C"l
Utility.sleep(500); :GL|:
breakWhile = true;
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for(int i=0;i<nStartPos.length;i++) Ux zwgVT
{ ]e?*7T]
if(!fileSplitterFetch.bDownOver) r OB\u|Pg
{ nV']^3b
breakWhile = false; IFpmf0;^
break; 9h*$P:S;1v
} z:<(b
} ?]h+En5z8
if(breakWhile) E8NIH!dI
break; G*J(4~Yw}
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//count++; 3t%uUkXl
//if(count>4) S@_@hFV jd
// siteStop(); #+ n
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} Y>%A*|U%
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System.err.println("文件下载结束!"); I X\&