/* -$d?e%}#
**SiteFileFetch.java ^h[6{F~J
*/ &`^(dO9
package NetFox; =^9h
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import java.io.*; -^@FZR^Y
import java.net.*; V%,,GmiU]
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public class SiteFileFetch extends Thread { RNT9M:w
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SiteInfoBean siteInfoBean = null; //文件信息Bean _}l(i1o,/
long[] nStartPos; //开始位置 |+cz\+
long[] nEndPos; //结束位置 5aQ)qUgAW
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Ua1&eCZi
long nFileLength; //文件长度 'P.y?
boolean bFirst = true; //是否第一次取文件 Etz#+R&*
boolean bStop = false; //停止标志 V6g*"e/8
File tmpFile; //文件下载的临时信息 T^A(v(^D
DataOutputStream output; //输出到文件的输出流 y,D9O/VP
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类)
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public SiteFileFetch(SiteInfoBean bean) throws IOException =E-x0sr?
{ '@n"'vks(\
siteInfoBean = bean; /`PYk]mJh
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); {wSi?;[Gq
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); x ytrd.
if(tmpFile.exists ()) A4j,]hOD
{
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bFirst = false; 1iT_mtXK$
read_nPos(); j+jC
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} j*%#~UFw
else R`j"iC2
{ E>fY,*0
nStartPos = new long[bean.getNSplitter()]; IFLphm5
nEndPos = new long[bean.getNSplitter()]; ql?w6qFs]
} [L%Ltmx
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} WIWo4[(
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public void run() 5_^d3LOT0x
{ i\xs!QU
//获得文件长度 8eT#-9q@
//分割文件 B:zx 9
//实例FileSplitterFetch dDcQSshL
//启动FileSplitterFetch线程 &8VH m?h
//等待子线程返回 !)M}(I}
try{ Y.m1d ?H 1
if(bFirst) `_J&*Kk5
{ Q& [!+s:2J
nFileLength = getFileSize(); H I9/
if(nFileLength == -1)
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{ c)EYXo
System.err.println("File Length is not known!"); E~y8X9HZ)
} U][E`[m#
else if(nFileLength == -2) PMQTcQ^
{ g`y9UYeh
System.err.println("File is not access!"); <@J$hs9s
} V9[_aP;
else 8@3=SO
{ >?+Rtg|${
for(int i=0;i<nStartPos.length;i++) i4YskhT
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); }s2CND
} :(q4y-o6
for(int i=0;i<nEndPos.length-1;i++) W6?=9].gc
{ J.iz%8
nEndPos = nStartPos[i+1]; N XB8u6
} Uw4iWcC
nEndPos[nEndPos.length-1] = nFileLength; BA
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} =eA|gt
} yzEyOz@Q
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//启动子线程 SFg4}*"C /
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; imOIO[<;
for(int i=0;i<nStartPos.length;i++) L,zx\cj?z
{ or-k~1D
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), a" s2N%{
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 091m$~r*
nStartPos,nEndPos,i); 60{G
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Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); oyVT
fileSplitterFetch.start(); jTwSyW
} bB@=J~l4
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), P$'PB*5d|
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); TTG=7x:3
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", CC^D4]ug
nEndPos = " + nFileLength); _J C*4
// fileSplitterFetch[nPos.length-1].start();
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//等待子线程结束 sm##owI
//int count = 0; Rd8mn'A
//是否结束while循环 %LnLB
boolean breakWhile = false; hw"2'{"II
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while(!bStop) ,u@:(G
{ Lginps[la
write_nPos(); .*NPoW4Kv
Utility.sleep(500); tDETRjTA
breakWhile = true; &pK0>2
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for(int i=0;i<nStartPos.length;i++) @+;.W>^h
{ .i\FK@2
if(!fileSplitterFetch.bDownOver) ;)ay uS sQ
{ )pI( <
breakWhile = false; G=qlE?j`j
break; /
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} '&Ur(axs
} 5CnNp?.t^
if(breakWhile) d/GSG%zB
break; tnpEfi-
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//count++; gZHgL7@
//if(count>4) $\/i t
// siteStop(); AXcmN
} pI f6RwH}%
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System.err.println("文件下载结束!"); [vI ;A!
} / 8O=3
catch(Exception e){e.printStackTrace ();} )h ,v(Rxa
} OGEe8Z9Jt
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//获得文件长度 O<fy^[r:`
public long getFileSize() ~F@p}u8TV
{ bD)"Jy
int nFileLength = -1; )fo0YpE^|
try{ HH6n3c!:mm
URL url = new URL(siteInfoBean.getSSiteURL()); cZ%tJ(&\7X
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); R|@~<