/* Om\vMd@!
**SiteFileFetch.java *vxk@`K~
*/ Hg izW
package NetFox; zu{P#~21
import java.io.*; ,!y$qVg'\f
import java.net.*; G 4X|Bka
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public class SiteFileFetch extends Thread { & l&:`nsJ
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SiteInfoBean siteInfoBean = null; //文件信息Bean BM
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long[] nStartPos; //开始位置 JIOR4' 9
long[] nEndPos; //结束位置 06Sceq
FileSplitterFetch[] fileSplitterFetch; //子线程对象 .j0$J\:i
long nFileLength; //文件长度 aP+X}r
boolean bFirst = true; //是否第一次取文件 [EXs
boolean bStop = false; //停止标志 [D4SW#
File tmpFile; //文件下载的临时信息 "$^ ~!1~
DataOutputStream output; //输出到文件的输出流 %_W)~Pv{+
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) kfY}S
public SiteFileFetch(SiteInfoBean bean) throws IOException 3$>1FoSk
{ )_S(UVI5
siteInfoBean = bean; Hk.TM2{w
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); ;))+>%SGCt
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); c9u`!'g`i
if(tmpFile.exists ()) K!Y71_#
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bFirst = false; Vaw+.sG`AP
read_nPos(); XJ|
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else 6}Ci>_i4#
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nStartPos = new long[bean.getNSplitter()]; K;H&n1
nEndPos = new long[bean.getNSplitter()]; YfKdR"i+.
} nT$SfGFj8
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public void run() kv{za4,&
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//获得文件长度 vw/J8'
//分割文件 ^A&1^B
//实例FileSplitterFetch q{LF>Wi
//启动FileSplitterFetch线程 G}raA%
//等待子线程返回 Z0", !6nS
try{ R.1.)P[
if(bFirst) +lcbi
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nFileLength = getFileSize(); :J&oX
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if(nFileLength == -1) qt"m
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System.err.println("File Length is not known!"); \V~eVf;~
} Moza".fiN
else if(nFileLength == -2) j>" @,B g*
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System.err.println("File is not access!"); .?sx&2R2
} !M1"b;
else 3,qr-g|;jM
{ ;$wVu|&
for(int i=0;i<nStartPos.length;i++) !?h;wR
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); ul >3B4
} ?1
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for(int i=0;i<nEndPos.length-1;i++) K
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nEndPos = nStartPos[i+1]; )F]]m#`
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nEndPos[nEndPos.length-1] = nFileLength; >}i E(
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//启动子线程 M!^az[[
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 5Yq@;e
for(int i=0;i<nStartPos.length;i++) cR<fJ[*
{ BW*rIn<?G
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), tg4pyW<
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), W[e$>yK
nStartPos,nEndPos,i); Eo]xNn/g
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); v PG},m~-
fileSplitterFetch.start(); hhc,uJ">!
} R-d:j^:f
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 7ZWgf"1j
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); y766;
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// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", lq;Pch
nEndPos = " + nFileLength); .}~_a76
// fileSplitterFetch[nPos.length-1].start(); v`Oc,
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//等待子线程结束 z<XtS[ki
//int count = 0; ,w4V?>l
//是否结束while循环 h
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boolean breakWhile = false; -gX1-,dE
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while(!bStop) w%jII{@,
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write_nPos(); ]jp6k<KF
Utility.sleep(500); M!D3 }JRm
breakWhile = true; Y&Z.2