/* AfP'EP0m
**SiteFileFetch.java o{EC&-
*/ iMFgmM|
package NetFox; E%v?t1>/
import java.io.*; E}_[QEY;Y
import java.net.*; 6,LubZFD
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public class SiteFileFetch extends Thread { X*Dj[TD]
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SiteInfoBean siteInfoBean = null; //文件信息Bean !$Tw^$n
long[] nStartPos; //开始位置 n;p:=\uN
long[] nEndPos; //结束位置 T<@ cd|`
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Fxqp-}:
long nFileLength; //文件长度 n?ctLbg
boolean bFirst = true; //是否第一次取文件 |'+eMl
boolean bStop = false; //停止标志 E55t*^`
File tmpFile; //文件下载的临时信息 !\#_Jw%y
DataOutputStream output; //输出到文件的输出流 PN<C=gAe
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 80 Y\|)
public SiteFileFetch(SiteInfoBean bean) throws IOException <~X >[PK<
{ gEhN3(
siteInfoBean = bean; @]c(V%x
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); hj$e|arB
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); U{$1[,f
if(tmpFile.exists ()) EVUq--)~
{ 3ZZV<SS
bFirst = false; i Q6epg1wB
read_nPos(); lz0TK)kuC
} TO*BH^5R
else ^o@,3__7Q
{ d90Z,nex
nStartPos = new long[bean.getNSplitter()]; 5P+t^\
nEndPos = new long[bean.getNSplitter()]; :@xm-.D
} IU]^&e9u
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} /?6|&
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public void run() deeU@x`f<
{ nL}5cPI
//获得文件长度 <0.$'M~E
//分割文件 C*te^3k>B
//实例FileSplitterFetch `L5~mb;7*
//启动FileSplitterFetch线程 h~,JdDV8l*
//等待子线程返回 qr50E[
try{ d~_`M0+
if(bFirst) ;t>Z+O%
{ $BDBN_p
nFileLength = getFileSize(); EIbXmkHl<
if(nFileLength == -1) Btd Xv4V
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System.err.println("File Length is not known!"); 4Kv[e]10(
} F;!2(sPS
else if(nFileLength == -2) Q U
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{ W*:,m8wk
System.err.println("File is not access!"); LFp]7Dq
} .LRxP#B
else ,kp\(X[J
{ 4^'3&vu
for(int i=0;i<nStartPos.length;i++) m&oi8 P-6
{ T\# *S0^
nStartPos = (long)(i*(nFileLength/nStartPos.length)); Ekm7 )d$
} 6V+ qnUk
for(int i=0;i<nEndPos.length-1;i++) nCvPB/-
{ ] 43bere
nEndPos = nStartPos[i+1]; (5Tvsw`
} V'2EPYB
nEndPos[nEndPos.length-1] = nFileLength; +1Ph<zq"
} Lx U={Y0
} X#UMIlU
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//启动子线程 j#6|V]l
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; p'?w2YN/
for(int i=0;i<nStartPos.length;i++) oXt,e
{ >Dg#9
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), =`C4qC_
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), DV]7.Bm
nStartPos,nEndPos,i); A?"h@-~2
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); UU}7U]9u
fileSplitterFetch.start(); .`Zf}[5[
} <;t)6:N\
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), r\9TMg`C
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ftavbNR`W
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", n1:v HBM@\
nEndPos = " + nFileLength); -,":5V26
// fileSplitterFetch[nPos.length-1].start(); ]y)Q!J )Q
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//等待子线程结束 dd7 =)XT+
//int count = 0; 2#/p|$;Ec'
//是否结束while循环 2$zU&p7sV
boolean breakWhile = false; YY4-bNj[p
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while(!bStop) >^"BEG9i:
{ {- 63/z
write_nPos(); M\+* P,i
Utility.sleep(500); 8xI`jE"1
breakWhile = true; W)SjQp6
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for(int i=0;i<nStartPos.length;i++) @#b0T:+v'
{ =ziy`#fm,
if(!fileSplitterFetch.bDownOver) *R`MMm
{ PG)_L.7rJ
breakWhile = false; a~^Srj!}x
break; =O{~Q3z@s
} X`\:_|
} 9g?xlue#?
if(breakWhile) %W|DJ\l8"
break; %bX0 mN
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//count++; $)e:8jS=
//if(count>4)
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// siteStop(); 0%)5.=6
} VZA3IbK}
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System.err.println("文件下载结束!"); `:-J+<`
} n*qN29sx
catch(Exception e){e.printStackTrace ();} j[S`^2
} >4![&