/* %E R"Udh
**SiteFileFetch.java 5*O*p `Ba
*/ uc<JF=
package NetFox; kxanzsSr9
import java.io.*; Y>/T+ub
import java.net.*; HUA{
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public class SiteFileFetch extends Thread { !*?|*\B^I
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SiteInfoBean siteInfoBean = null; //文件信息Bean wit
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long[] nStartPos; //开始位置 o7r7HmA@
long[] nEndPos; //结束位置 Hk1 [0)
FileSplitterFetch[] fileSplitterFetch; //子线程对象 O"M2*qiH
long nFileLength; //文件长度 >\7Mf@c
boolean bFirst = true; //是否第一次取文件 V&h{a8xa$
boolean bStop = false; //停止标志 E/3i_R
File tmpFile; //文件下载的临时信息 _qxBjB4t"a
DataOutputStream output; //输出到文件的输出流 S8j!?$`
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) |JL?"cc
public SiteFileFetch(SiteInfoBean bean) throws IOException ^ Fnag]qQ
{ Ka_g3
siteInfoBean = bean; ^Q\Hy\
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 57K\sT4[
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); BXb=NE
if(tmpFile.exists ()) :R{pV7<O
{ kR+7JUq]
bFirst = false; 68?>#o865
read_nPos(); +SB>>
} :R-_EY$k6
else %/4_|.8u
{ ]vflx^<?
nStartPos = new long[bean.getNSplitter()]; xZ]QT3U+
nEndPos = new long[bean.getNSplitter()]; +n%d,Pz
} @DNwzdP
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} uq2C|=M-x\
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public void run() j8G$ , ~v
{ x*sDp3f[*
//获得文件长度 %Z3B9
//分割文件 M2$Hb_S{
//实例FileSplitterFetch =fy\W=c
//启动FileSplitterFetch线程 v:P=t2q
//等待子线程返回 l>?f+70
try{ 'T|EwrS j
if(bFirst) ;X
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nFileLength = getFileSize(); :}R,a=N
if(nFileLength == -1) f5Hv![x
{ Q;s{M{u
System.err.println("File Length is not known!"); 1bFGoLAEFl
} lWn}afI
else if(nFileLength == -2) e"%uOuIYX
{ XtQwLH+F
System.err.println("File is not access!"); N^M6*,F,J
} EOZ 6F-':
else ?t<g|H/|6
{ \:g\?[
for(int i=0;i<nStartPos.length;i++) {b'
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); ZWni5uF-c
} |2=@8_am
for(int i=0;i<nEndPos.length-1;i++) 5UJ ?1"J
{ V!(7=ku!`
nEndPos = nStartPos[i+1]; )4h|7^6ji
} $@vB<(sk
nEndPos[nEndPos.length-1] = nFileLength; 5NC77}^.
} { P,hH~!
} ACy}w?D<
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//启动子线程 3d]~e
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; spTz}p^\O
for(int i=0;i<nStartPos.length;i++) 1V9A nzwX
{ `zrg?
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Hj(K*z
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), lo1bj *Y2
nStartPos,nEndPos,i); LEOri=?RF
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); Uf|uFGb
fileSplitterFetch.start(); eEfGH
} m+(g.mvK>
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), IdMwpru(
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ~-[!>1!%
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", }K@m4`T
nEndPos = " + nFileLength); "dG N0i
// fileSplitterFetch[nPos.length-1].start(); 4:S]n19nq
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//等待子线程结束 Rnoz[1y?0
//int count = 0; by0K:*C
//是否结束while循环 D/Ok
boolean breakWhile = false; /t`,7y3T
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while(!bStop) X.S<",a{qz
{ |OAM;@jH
write_nPos(); qjh k#\y
Utility.sleep(500); -.y1]4
breakWhile = true; [|YvVA
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for(int i=0;i<nStartPos.length;i++) Y#Q!mbp
{ [OTn>/W'
if(!fileSplitterFetch.bDownOver) zwU[!i)
{ W7'<Jom|?
breakWhile = false; ']>9/r#
break; ?}v/)hjp=?
} pDYJLh-C
} NN2mOJ:-
if(breakWhile) Ihf)gfHj
break; B
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//count++; =cZ24I
//if(count>4) Axns
// siteStop(); S<NK!89
} J'sa{/
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System.err.println("文件下载结束!"); yU&