/* nJv=kk1|o
**SiteFileFetch.java Q
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*/ 5-fASN.Lx
package NetFox; j`@`M*)GB
import java.io.*; Zi]E!Tgn
import java.net.*; \5<Z [#{
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public class SiteFileFetch extends Thread { =IX-n$d`>
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SiteInfoBean siteInfoBean = null; //文件信息Bean l*wGKg"x3
long[] nStartPos; //开始位置 &D-z|ZjgHi
long[] nEndPos; //结束位置 L;?h)8
FileSplitterFetch[] fileSplitterFetch; //子线程对象 VR"le&'z"
long nFileLength; //文件长度 ~AaEa,LQ
boolean bFirst = true; //是否第一次取文件 }JQy&V%
boolean bStop = false; //停止标志 dJrUcZBr
File tmpFile; //文件下载的临时信息 m0.g}N-w
DataOutputStream output; //输出到文件的输出流 s"$K2k;J
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 54WX#/<Yik
public SiteFileFetch(SiteInfoBean bean) throws IOException Au)~"N~p?
{ $Q'LDmot
siteInfoBean = bean; |XQ_4{
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 3
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tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ppLLX1S
if(tmpFile.exists ()) B9
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bFirst = false; \pI {b9
read_nPos(); b$nev[`{6
} &F7_0iAP(
else >;j&]]-&
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nStartPos = new long[bean.getNSplitter()]; S"^'ksL\
nEndPos = new long[bean.getNSplitter()]; "D4% A!i
} 6M_ W(
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public void run() >hG*=4oh
{ <0~1
//获得文件长度 up8d3
//分割文件 2g_mQT
//实例FileSplitterFetch #J5_z#-Q;
//启动FileSplitterFetch线程 \=|=(kt)
//等待子线程返回 WLVkrTvX
try{ \C>vj+!cJ
if(bFirst) hc0 $mit
{ ]b1>bv%
nFileLength = getFileSize(); <ycR/X
if(nFileLength == -1) G*%U0OTi
{ 7cB{Iq0+
System.err.println("File Length is not known!"); SfY9PNck\
} G[_Z|Xi1
else if(nFileLength == -2)
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{ #
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System.err.println("File is not access!"); K]yWpW
} C+`V?rp=s
else =;I+:K
{ Z1$U[Tsd
for(int i=0;i<nStartPos.length;i++) 8gt*`]I
{ 7\nXJ381
nStartPos = (long)(i*(nFileLength/nStartPos.length)); ZpBP#Y*
} ij3W8i9'
for(int i=0;i<nEndPos.length-1;i++) W
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{ P&:[pPG
nEndPos = nStartPos[i+1]; TOa6sB!H
} p__N6a
nEndPos[nEndPos.length-1] = nFileLength; p_JWklg^
} XUUP#<,s
} AkO);4A;Jd
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//启动子线程 -lv(@7o~
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; ~>0H
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for(int i=0;i<nStartPos.length;i++) V=1zk-XC
{ w"QZ7EyJ
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), tgl 4pAc
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), q j9q
nStartPos,nEndPos,i); 0fUsERr1*
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); uT<<G)v)
fileSplitterFetch.start(); w?N>3`Jnf
} C#)T$wl[E
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), <1*\ ~CX
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); kG}F/GN?
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 2@ZRz%(Oa&
nEndPos = " + nFileLength); gnxD'1_
// fileSplitterFetch[nPos.length-1].start(); ?(Plb&kR
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//等待子线程结束 anfnqa8
//int count = 0; [>3dhj[;
//是否结束while循环 ,Sy&?t}`
boolean breakWhile = false; mU]^PC2[
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while(!bStop) V+l7W
{ mV4gw'.;7
write_nPos(); YH^@8
Utility.sleep(500); Y(?SE< 4R
breakWhile = true; \l
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for(int i=0;i<nStartPos.length;i++) /nX_Q?mo
{ r{SDJa
if(!fileSplitterFetch.bDownOver) nvNF~)mu
{ 8]1,E E<
breakWhile = false; )"6"g9A
break; EdSUBoWF}
} 5tLb
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} MLmaA3
if(breakWhile) DVKb`KJ"
break; u$(ei2f
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//count++; "*W# z
//if(count>4) T3 4Z#PFwe
// siteStop(); 5IFzbL#q#f
} @v&