/* t.y-b`v
**SiteFileFetch.java HxSq&j*F
*/ ~jC+6v
package NetFox; ];xDXQd
import java.io.*; qYoB;gp
import java.net.*; ^G|*=~_
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public class SiteFileFetch extends Thread { ;3x*pjLG:Q
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SiteInfoBean siteInfoBean = null; //文件信息Bean y+3+iT@i
long[] nStartPos; //开始位置 E75/EQ5p]p
long[] nEndPos; //结束位置 v5>A1\
FileSplitterFetch[] fileSplitterFetch; //子线程对象 [ ?%q,>F
long nFileLength; //文件长度 >)F "lR:o
boolean bFirst = true; //是否第一次取文件 zD)/Q FILy
boolean bStop = false; //停止标志 ]Hp>~Zvbb
File tmpFile; //文件下载的临时信息 XeX\u3<D
DataOutputStream output; //输出到文件的输出流 n{u\t+f
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) B (Ps/
public SiteFileFetch(SiteInfoBean bean) throws IOException H2H`7 +I,
{ *Nm$b+
siteInfoBean = bean; Mg#yl\v
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); I4W@t4bZ
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); !O,Sq/=.
if(tmpFile.exists ()) _%q~K (::
{ Jsl2RdI
bFirst = false; c
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read_nPos(); sUF9_W5z
} ]{oZn5F
else \yl|*h3
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nStartPos = new long[bean.getNSplitter()]; !_vxbfZO
nEndPos = new long[bean.getNSplitter()]; SE'!j]6jI
} +D@5zq:5
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} QF)\\D[
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public void run() /a'1W/^2
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//获得文件长度 M?!@L:b[
//分割文件 ^|H={pd'c0
//实例FileSplitterFetch y~fKLIoz"
//启动FileSplitterFetch线程 w9{C"K?u=
//等待子线程返回 As< B8e]
try{ +x(#e'6p
if(bFirst) R*:>h8
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nFileLength = getFileSize(); RN[I%^$"
if(nFileLength == -1) SRwD`FF
{ #8|LPfA
System.err.println("File Length is not known!"); T5
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else if(nFileLength == -2) #obRr#8
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System.err.println("File is not access!"); 1>"-!ADm
} MfP)Pk5
else PD)"od
{ G@.MP|
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for(int i=0;i<nStartPos.length;i++) x2rAB5r6
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); 0V4B Q:v
} n:,mo} ?X
for(int i=0;i<nEndPos.length-1;i++) e"ehH#i
{ =5q<_as
nEndPos = nStartPos[i+1]; d=/0A\O
} lj (y
nEndPos[nEndPos.length-1] = nFileLength; Ut;`6t
} ")T\_ME
} LWyr
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//启动子线程 X` zWw_i
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; gv''A"
for(int i=0;i<nStartPos.length;i++) unLhI0XW
{ TIWR[r1!
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), (k?HT'3)
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), G3~`]qf
nStartPos,nEndPos,i); [ QiG0D_'=
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); H"#ITL
fileSplitterFetch.start(); f#\YX
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} &EfQ%r}C
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), l~6K}g?
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); %GHGd'KO&
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", KwuucY
nEndPos = " + nFileLength); Upe}9xf
// fileSplitterFetch[nPos.length-1].start(); ]mTBD<3\
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//等待子线程结束 c+ oi8G
//int count = 0; TmsIyDcD~
//是否结束while循环 /|IPBU 5
boolean breakWhile = false; vrkY7L3\
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while(!bStop) x4oWZEd
{ =]Vz=<
write_nPos(); |A%9c.DG.
Utility.sleep(500);
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breakWhile = true; j]Jgz<
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for(int i=0;i<nStartPos.length;i++) .T|
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{ 0zaK&]oY0
if(!fileSplitterFetch.bDownOver) #c^V%
{ `*C=R
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breakWhile = false; +$h
break; [_,as
} *doNPp)m
} [9 W@<p
if(breakWhile) Smr{+m a
break; |A8@r&
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//count++; IS2cU'
//if(count>4) hH %>
// siteStop(); &{}Mds
} jJy:/!i
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System.err.println("文件下载结束!"); )cqD"> vs
} CU'JvVe3
catch(Exception e){e.printStackTrace ();} l~c[} wv
} CMa6':~
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//获得文件长度
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public long getFileSize() lQn"
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{ |9CikLX)7
int nFileLength = -1; I//=C6
try{ g.lTNQm$u
URL url = new URL(siteInfoBean.getSSiteURL()); WYP ;s7_
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); %6UF%dbYH`
httpConnection.setRequestProperty("User-Agent","NetFox"); h>-P /
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int responseCode=httpConnection.getResponseCode(); XLNbV?
if(responseCode>=400) {]0e=#hw
{ $><