/* uX[O,l^}
**SiteFileFetch.java c8#T:HM|`
*/ GFdZ`i
package NetFox; ZR/R'prW
import java.io.*; 5mI?pfm
import java.net.*; 6Cl+KcJH
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public class SiteFileFetch extends Thread { rD0k%-{{
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SiteInfoBean siteInfoBean = null; //文件信息Bean _Fy4DVCg
long[] nStartPos; //开始位置 #04{(G|~+E
long[] nEndPos; //结束位置 5R,la\!bQ
FileSplitterFetch[] fileSplitterFetch; //子线程对象 h`?y2?O
long nFileLength; //文件长度 E7rX1YdR
boolean bFirst = true; //是否第一次取文件 o-SRSu
boolean bStop = false; //停止标志 C!!mOAhJ
File tmpFile; //文件下载的临时信息 T(Y}V[0+
DataOutputStream output; //输出到文件的输出流 [urH a
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) #mgA/q?A
public SiteFileFetch(SiteInfoBean bean) throws IOException KU+( YF$1
{ d@-wi%,^
siteInfoBean = bean; YO)')&
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); Sdgb#?MR|
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); %S{o5txo
if(tmpFile.exists ()) :~t<L%tYF
{ qPsyqn?Y|
bFirst = false; d4d\0[
read_nPos(); xe(MHNrj
} oz%h)#;
else ;e&!
{ wX-RQ[2X
nStartPos = new long[bean.getNSplitter()]; {V[Ha~b%*
nEndPos = new long[bean.getNSplitter()]; ;US83%*
} 5\VxXiy0
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} c`-YIz)W
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public void run() >RM
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{ [/?c@N,
//获得文件长度 w3<Z?lj:
//分割文件 EtGH\?d~]
//实例FileSplitterFetch ?Rlgv5P!
//启动FileSplitterFetch线程 2[.5o z`
//等待子线程返回 R @"`~#$$
try{ )j\r,9<K+5
if(bFirst) 9#u }^t
{ {U(Bfe^a,
nFileLength = getFileSize(); PM@XtL7J
if(nFileLength == -1) j\!
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{ f](I.lm:
System.err.println("File Length is not known!"); Z%Vr+)!4
} ?hKm&B;d
else if(nFileLength == -2) 6%>/og\%
{ {n\6BTs
System.err.println("File is not access!"); !2(.$}E
} ;JYoW{2
else m6-76ma,hi
{ ]+AAT=B<!
for(int i=0;i<nStartPos.length;i++) 9KXym }
{ QS\Uq(Ja\
nStartPos = (long)(i*(nFileLength/nStartPos.length)); H]BAW *}
} 60'6/3
for(int i=0;i<nEndPos.length-1;i++) L5/mO6;k
{ s){Q&E~X
nEndPos = nStartPos[i+1]; 7O:"~L
} 5KK{%6#f\
nEndPos[nEndPos.length-1] = nFileLength; "rVU4F)
} @Eo4U]-
} kr#I{gF
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//启动子线程 .M8=^,h^K
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; B0v|{C
for(int i=0;i<nStartPos.length;i++) C]/&vh7ta
{ FK6K6wU52m
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Z^<Sj5}6
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), D
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nStartPos,nEndPos,i); #aa1<-&H
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); rxs8De
fileSplitterFetch.start(); B9}E
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} 0EyAMu
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 691G15
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ]s_@n!
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", X\kjAMuW/*
nEndPos = " + nFileLength); NK~PcdGl
// fileSplitterFetch[nPos.length-1].start(); wajZqC2yg
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//等待子线程结束 +SyUWoM
//int count = 0; b]w[*<f?
//是否结束while循环 )Xp Vu
boolean breakWhile = false; /V#7=,,
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while(!bStop) ~zMDY F"&
{ *(icR
write_nPos(); Z&A0hI4d
Utility.sleep(500); >zFD$
breakWhile = true; B_cgWJ*4
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for(int i=0;i<nStartPos.length;i++) kB
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{ 5\&]J7(
if(!fileSplitterFetch.bDownOver) Uh}+"h5
{ nW11wtiO.
breakWhile = false; T RDxT
break; 3 tF:
} !x8kB
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} L$SMfx
if(breakWhile) x df?nt
break; GoazH?%
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//count++; t?HF-zQ
//if(count>4) }YRO'Q{
// siteStop(); hox< vr4
} K>$qun?5
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System.err.println("文件下载结束!"); IhfZLE.,
} HJ",Sle
catch(Exception e){e.printStackTrace ();} =6fB*bNk]
} ~{$L9;x
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//获得文件长度 %7 /,m
public long getFileSize() ]=|P<F
{ [8TS"ph>
int nFileLength = -1; <