/* (L8H.|.
**SiteFileFetch.java (w?@qs!
*/ ^~|P[}
package NetFox; _;$VH4(BI
import java.io.*; 'Wl))lB
import java.net.*; a3ve%b
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public class SiteFileFetch extends Thread { aB-*l
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SiteInfoBean siteInfoBean = null; //文件信息Bean /K<Xr[z~y
long[] nStartPos; //开始位置 ^10*s,(uS?
long[] nEndPos; //结束位置 }8GCOY
FileSplitterFetch[] fileSplitterFetch; //子线程对象 j"HB[N
long nFileLength; //文件长度 =El.uBz{
boolean bFirst = true; //是否第一次取文件 E}mnGe
boolean bStop = false; //停止标志 15#v|/wI'
File tmpFile; //文件下载的临时信息 ;^lVIS%&{
DataOutputStream output; //输出到文件的输出流 `4}zB#3
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) %Y:'5\^lC
public SiteFileFetch(SiteInfoBean bean) throws IOException >Be PE(k
{ yC4JYF]JN
siteInfoBean = bean; 3>yb$ZU"-
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); )-#%
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); Yn[y9;I{
if(tmpFile.exists ()) 8263
{ {_|~G|Z
bFirst = false; /"tVOv#
read_nPos(); soA>&b!?
} K&<bn22
else lyfLkBF
{ S%-L!V ,
nStartPos = new long[bean.getNSplitter()]; -4Zf0r1u
nEndPos = new long[bean.getNSplitter()]; lMB^/-Y
} {HNGohZt
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} ;$&&tEh)
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public void run() Vd4x!Vk
{ [G+M94[A
//获得文件长度 -lRXH7|X
//分割文件 \=v7'Hp
//实例FileSplitterFetch ZGSb&!Ke
//启动FileSplitterFetch线程 R0_%M
//等待子线程返回 X3%7VFy9
try{ f8L
if(bFirst) [{ K$sd
{ F=Z|Ji#
nFileLength = getFileSize(); s{x2RDAt
if(nFileLength == -1) qxG@Zd
{ B-|:l7
System.err.println("File Length is not known!"); 0Q_AF`"
} ueDG1)
else if(nFileLength == -2) k]lM%
{ Yb]eWLv
System.err.println("File is not access!"); FGG Fi(
} PbJn8o
else bqFGDmu6'
{ 66fvS}x
for(int i=0;i<nStartPos.length;i++) s[nXr
{ Dsw(ti`@
nStartPos = (long)(i*(nFileLength/nStartPos.length)); ])'22sY
} vi["G7
for(int i=0;i<nEndPos.length-1;i++) .AH#D}m
{ HZ5*PXg~
nEndPos = nStartPos[i+1]; q El:2 <
} X2(TuR*t
nEndPos[nEndPos.length-1] = nFileLength; A&~G
} i*#Gq6qZq
} Eh#W*Bg
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//启动子线程 (WCpaC
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 1&ZG6#16q
for(int i=0;i<nStartPos.length;i++) qS*qHT(u19
{ 9(QY~F
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), \'&:6\-fw
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), HtgVD~[]
nStartPos,nEndPos,i); 8TD:~ee
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ;iy]mPd
fileSplitterFetch.start(); 73A1+2
} /P<RYA~
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), %L=roqz
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); _' Xt
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", R4 ;^R
nEndPos = " + nFileLength); u^s{r`/
// fileSplitterFetch[nPos.length-1].start(); =&U JFu
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//等待子线程结束 p
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//int count = 0; ba1zu|@w
//是否结束while循环 ah>;wW!6/
boolean breakWhile = false; KVvIo1$N
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while(!bStop) eY"y[
{ *Tl"~)'t~
write_nPos(); -d[9mS
Utility.sleep(500); RvZi %)
breakWhile = true; K%[Rv#>;q|
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for(int i=0;i<nStartPos.length;i++) Y
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{ B%6>2S=E
if(!fileSplitterFetch.bDownOver) 1?]Gl+}
{ w{?nX6a@p
breakWhile = false; Yn+/yz5k_
break; X<Rh-1$8F
} 4};iL)
} Y\(Q
if(breakWhile) q{n~v>wU
break; |fYNkD8z1
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//count++; cR 4xy26s
//if(count>4) R;.zS^LL
// siteStop(); w{#K.dx
} kpsus \T
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System.err.println("文件下载结束!");
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} C8}ujC
catch(Exception e){e.printStackTrace ();} dB ?+-aE
} IxAKIa[HY
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//获得文件长度 BEPeK
public long getFileSize() ;Z-xum{
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int nFileLength = -1; lsCD%P
try{ wA|m/SZx
URL url = new URL(siteInfoBean.getSSiteURL()); *>n<7T0
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); ~P
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httpConnection.setRequestProperty("User-Agent","NetFox"); K||9m+
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