/* .I%B$eH
**SiteFileFetch.java {*nE8+..A
*/ X7?j90tH
package NetFox; TV}=$\D
import java.io.*; ^=qV)j
import java.net.*; Omph(
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public class SiteFileFetch extends Thread { c*R18,5-
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SiteInfoBean siteInfoBean = null; //文件信息Bean ;HiaX<O!
long[] nStartPos; //开始位置 -?Cu-'
long[] nEndPos; //结束位置 P@Vs\wAT
FileSplitterFetch[] fileSplitterFetch; //子线程对象 C#RueDa.
long nFileLength; //文件长度 Pd~z%VoO
boolean bFirst = true; //是否第一次取文件 IG~Zxn1o
boolean bStop = false; //停止标志 ]PbwG
File tmpFile; //文件下载的临时信息 \U'*B}Sz
DataOutputStream output; //输出到文件的输出流 u(JuU/U
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 6` 3kNk;
public SiteFileFetch(SiteInfoBean bean) throws IOException _:JV-lM
{ wd1>L) T
siteInfoBean = bean; SRrp=>w?
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); ^[v>B@p*{
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); lo36b zbT
if(tmpFile.exists ()) !"'@c
{ #q8/=,3EG
bFirst = false; ,QLy}=N
read_nPos(); tR_DN
} o_ r{cnu
else ^$<:~qq!
{ 5xa!L@)`wF
nStartPos = new long[bean.getNSplitter()]; S4OOm[8
nEndPos = new long[bean.getNSplitter()]; J$-1odL0Z
} jI$7vmO
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public void run() Ah
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{ f?"909&
//获得文件长度 fLV@~T|
//分割文件 ][~rk?YY
//实例FileSplitterFetch |^#Z!Hp_Y
//启动FileSplitterFetch线程 uNpa2{S'
//等待子线程返回 d!"gb,ec
try{ mOb@w/f
if(bFirst) s+v$sF
{ }RQ'aeVl(
nFileLength = getFileSize(); ?:W=ddg
if(nFileLength == -1) d%oHcn
{ (>dL
System.err.println("File Length is not known!"); q'jInwY|x
} 2gnz=
else if(nFileLength == -2) Vb?_RE_H
{ 0p'g+ 2
System.err.println("File is not access!"); .GFKy
} ,|w,
else :BblH0'
{ M$3/jl*#}
for(int i=0;i<nStartPos.length;i++) fg
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); /1r{z1pv\
} zZV9`cqZ{
for(int i=0;i<nEndPos.length-1;i++) ]K<7A!+@@p
{ H)K.2Q
nEndPos = nStartPos[i+1]; oB+@05m8
} 3GZrVhU?m
nEndPos[nEndPos.length-1] = nFileLength; 8vUq8[[
} "p&4Sn3T2?
} Dj
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//启动子线程 z{qn|#}
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; Bc}e ??F
for(int i=0;i<nStartPos.length;i++) Sbj{)
{ FOqD
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Qe=eer~jI
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), :kucDQE({?
nStartPos,nEndPos,i); Qq\hD@Z|
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); U"K%ip:Wd
fileSplitterFetch.start(); +b{tk=Q:
} &9xcP.3
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), [8[`V)b
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ),0Ea~LB4
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", p0HcuB)Y
nEndPos = " + nFileLength); #twl
// fileSplitterFetch[nPos.length-1].start(); |tO.@+[uqP
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//等待子线程结束 D+*_iM6[-
//int count = 0; K Z0%J5
//是否结束while循环 r7v1q
boolean breakWhile = false; Ft8ii|-
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while(!bStop) a<Ps6'
{ B|rf[EI>
write_nPos(); F/D/1w^ iR
Utility.sleep(500); 9>d~g!u=
breakWhile = true; xGX U7w:X
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for(int i=0;i<nStartPos.length;i++) aMyf|l.
{ ~-NlTx
if(!fileSplitterFetch.bDownOver) d C6t+
{ o[nr)
breakWhile = false; qox@_
break; |exjrsmM*
} bd`}2vr
} "R-Pe\W
if(breakWhile) 2}.EFQp+
break; ~Yl%{1
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//count++; /^Zgv-n
//if(count>4) 0+_:^z
// siteStop(); yzz(<s:o/
} )H<F([Jri
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System.err.println("文件下载结束!"); m[&