/* <,r|*pkhp~
**SiteFileFetch.java -_bnGY%,
*/ s\k4<d5
package NetFox; H6Mqy}4W
import java.io.*; E,S[3 +
import java.net.*; 6V"|
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public class SiteFileFetch extends Thread { hmRnr=2N
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SiteInfoBean siteInfoBean = null; //文件信息Bean v-k~Q$7~
long[] nStartPos; //开始位置 PgeC\#;9
long[] nEndPos; //结束位置 -K 7jigac
FileSplitterFetch[] fileSplitterFetch; //子线程对象 llCBqWn
long nFileLength; //文件长度 b'!t\m
boolean bFirst = true; //是否第一次取文件 OlW|qj
boolean bStop = false; //停止标志 ''{REFjK7
File tmpFile; //文件下载的临时信息 vr,8i7*0
DataOutputStream output; //输出到文件的输出流 [z2XK4\e1T
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) g>m)|o'
public SiteFileFetch(SiteInfoBean bean) throws IOException _6b?3[Xz
{ \{Qd
siteInfoBean = bean; Kw`{B3"
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 0W92Z@_GY
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ,cgFdOM.
if(tmpFile.exists ()) e;+6U"Jx*
{ n9
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bFirst = false; x)Y?kVw21"
read_nPos(); Wchu-]
} toq/G,N Q
else @H{QHi
{ NUlp4i~Q
nStartPos = new long[bean.getNSplitter()]; [Eeanl&x>
nEndPos = new long[bean.getNSplitter()]; ewo]-BQS
} i++a^f
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} n(i Uc1Y
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public void run() }?KvT$s
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//获得文件长度 ~AVn$];{
//分割文件 MI:
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//实例FileSplitterFetch -/x=`S*
//启动FileSplitterFetch线程 .!fhy[%o:D
//等待子线程返回 03ol6y )C
try{ -B`Nkc
if(bFirst) scf.>K2
{ (E{>L).~
nFileLength = getFileSize(); q*L>MV
if(nFileLength == -1) (Dy6I;S
{ >@b]t,rrK
System.err.println("File Length is not known!"); 9H~2
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} jGg,)~)Y
else if(nFileLength == -2) wzXIEWJ
{ ?QDHEC62
System.err.println("File is not access!"); y*F !k{P
} wbIgZ]o!/;
else L}~"R/iWCT
{ [>2iz
for(int i=0;i<nStartPos.length;i++) s6q6)RD"
{ I_1(jaY
nStartPos = (long)(i*(nFileLength/nStartPos.length)); I7@|{L1|FB
} jR1o<]?
for(int i=0;i<nEndPos.length-1;i++) J0ysZ]
{ lOp7rW]$
nEndPos = nStartPos[i+1]; Oe)d|6=
} &kR*J<)V
nEndPos[nEndPos.length-1] = nFileLength; 8t1XZ
} S55h}5Y
} \;!}z3W w
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//启动子线程 i;flK*HOZ9
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; -w dbH`2Z"
for(int i=0;i<nStartPos.length;i++) e^LjB/<Th
{ WE{fu{x
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), XIGz_g;#'w
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), H*m3i;"4p\
nStartPos,nEndPos,i); B\73Vf
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); kB)u@`</mV
fileSplitterFetch.start(); R@X65o
} V< Ib#rd'
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), *:5S*E&}V
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); K2XRKoG
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", :17Pc\:DS
nEndPos = " + nFileLength); ~WjK'N4n5
// fileSplitterFetch[nPos.length-1].start(); X[ 6#J
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//等待子线程结束 0P5s'2w
//int count = 0; )>=!</@
//是否结束while循环 oimM)Yo
boolean breakWhile = false; F@tfbDO?
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while(!bStop) &E]<dmR
{ ;u8a%h!
write_nPos(); S-f
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Utility.sleep(500); Ybk ydc
breakWhile = true; *8bj3A]vf
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for(int i=0;i<nStartPos.length;i++) [.(,vn?6
{ 33=lR-N#
if(!fileSplitterFetch.bDownOver) EV'i/*v}\
{ w;{=
breakWhile = false; S4_C8
break; gkM Q=;Nn
} $} @gR]
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} "5!T-Z+F
if(breakWhile) \{a!Z&df
break; 6!`GUU
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//count++; 45,): U5
//if(count>4) sTxgU !_
// siteStop(); qs%UJ0tR
} Yyr
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System.err.println("文件下载结束!"); ,Y4>$:#n/
} UhKd o
catch(Exception e){e.printStackTrace ();} d =p=eUd2
} Nz77"
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//获得文件长度 Kqz+:E8D
public long getFileSize() @<jm+f"MP
{ j"A<