/* Jvysvi{8
**SiteFileFetch.java pNY+ E5
*/ !{@!:m3w
package NetFox; d|UK=B^x
import java.io.*; Za+26#g
import java.net.*; -"u9s[L{
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public class SiteFileFetch extends Thread { .Rq|F
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SiteInfoBean siteInfoBean = null; //文件信息Bean -]1F]d
long[] nStartPos; //开始位置 X{SD3j=G#
long[] nEndPos; //结束位置 /b *VFA/75
FileSplitterFetch[] fileSplitterFetch; //子线程对象 6qsT/
long nFileLength; //文件长度 JJL#Y
boolean bFirst = true; //是否第一次取文件 h= uv4&
boolean bStop = false; //停止标志 OidF{I*O
File tmpFile; //文件下载的临时信息 wyqXD.of
DataOutputStream output; //输出到文件的输出流 l1X&Nw1W
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) -V
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public SiteFileFetch(SiteInfoBean bean) throws IOException t/?x#X
{ %M+ID['K9/
siteInfoBean = bean; YG<7Zv
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 7r=BGoA2E
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); >_ji`/d{
if(tmpFile.exists ()) Y{]RhRR
{ GT|=Kx$;
bFirst = false; f_}FYeg
read_nPos(); 9p
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} S^}@X?v
else $<jI<vD+:
{ @+LZSd+I
nStartPos = new long[bean.getNSplitter()]; k@qn'Zi
nEndPos = new long[bean.getNSplitter()]; L&td4`2y
} ]|cL+|':y
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} Xj :?V;
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public void run() PxENLQ3a=
{ ^cO^3=
//获得文件长度 Q`#Y_N-h+
//分割文件 D]nVhOg|
//实例FileSplitterFetch !|P>%bi
//启动FileSplitterFetch线程 \wY? 6#;
//等待子线程返回 2+pLDIIT
try{ Xz`?b4i
if(bFirst) =y"
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{ g0-hN%=6
nFileLength = getFileSize(); _1w?nN'
if(nFileLength == -1) 2J;h}/!H
{ Q>y2C8rnJ/
System.err.println("File Length is not known!"); 9;3f`DK@2k
} [([?+Ouy
else if(nFileLength == -2) :(A5,$
{ S?.2V@Ic
System.err.println("File is not access!"); ZRYs7 4<
} uVJ;1H!
else $Bd{Y"P@6
{ ]kC/b^~+m
for(int i=0;i<nStartPos.length;i++) ^hOnLy2
{ j'lfH6_')e
nStartPos = (long)(i*(nFileLength/nStartPos.length)); PfTjC"`,
} D0(QZrVa
for(int i=0;i<nEndPos.length-1;i++) q|)8VmVV
{ &f1dCL%z7
nEndPos = nStartPos[i+1]; E7E>w#T5
} Jt6~L5[_s
nEndPos[nEndPos.length-1] = nFileLength; $0rSb0[
} /M>8ad
} 7<&CN0&
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//启动子线程 S[!-M\b
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; w]w>yD>$
for(int i=0;i<nStartPos.length;i++) Lc;4 Hg
{ mVGQyX
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), =VkbymIZ4y
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), OZdiM&Zss
nStartPos,nEndPos,i); gf6<`+/
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); D 6!`p6r+
fileSplitterFetch.start(); HpI[Af}l
} x6A*vP0nm)
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 7B
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); @$ E&H`da
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", <F!On5=W*
nEndPos = " + nFileLength); qG.HJD
// fileSplitterFetch[nPos.length-1].start(); <TmMUA)`}
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//等待子线程结束 {<7!=@j
//int count = 0; r
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//是否结束while循环 +o)o4l%3
boolean breakWhile = false; j["b*X`8G
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while(!bStop) !K;\{/8
{ +5(#~
write_nPos(); QjMH1S
Utility.sleep(500); !%n3_tZC
breakWhile = true; xMI4*4y(
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for(int i=0;i<nStartPos.length;i++) hR"j[
{ CSx V^
if(!fileSplitterFetch.bDownOver) F8S -H"
{ Gz;.?=&iF
breakWhile = false; d0YN:lJc
break; ~0 <?^
} `(A>7;]:
} bY:A7.p7#
if(breakWhile) omQaN#!,
break; r(./ 00a
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//count++; >h>X/a(=~
//if(count>4) !kZ9Ox9^
// siteStop(); 3# G;uWN-
} a[iuE`
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