/* 3S_H&>K
**SiteFileFetch.java OHAU@*[lM
*/ _Cz98VqRk
package NetFox; D`G; C
import java.io.*; N}nE9z5
import java.net.*; .zdaY,
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public class SiteFileFetch extends Thread { {_(R?V]w,
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SiteInfoBean siteInfoBean = null; //文件信息Bean z0\
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long[] nStartPos; //开始位置 9C?SEbC
long[] nEndPos; //结束位置 4=^Ha%l
FileSplitterFetch[] fileSplitterFetch; //子线程对象 'C7R*
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long nFileLength; //文件长度 Q;>Yk_(S
boolean bFirst = true; //是否第一次取文件 M]Vi]s
boolean bStop = false; //停止标志 Tw$tE:
File tmpFile; //文件下载的临时信息 V[%IU'{:
DataOutputStream output; //输出到文件的输出流 o`QH8
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 5#|&&$)
public SiteFileFetch(SiteInfoBean bean) throws IOException ddl]!
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{ Sx~mc_ekY
siteInfoBean = bean; 8q]"CFpa
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); g*FHZM*N9
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); T[e+iv<8j
if(tmpFile.exists ()) }@
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{ f-i5tnh
bFirst = false; rIB./,
read_nPos(); T; [T`
} 1jKj'7/K
else 4IOqSB|
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nStartPos = new long[bean.getNSplitter()]; cr0/.Zv)
nEndPos = new long[bean.getNSplitter()]; !Y|xu07
} -@w}}BR
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} N@Ap|`Ei
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public void run() s+ *LVfau
{ ,'YKL",
//获得文件长度 \cX9!lHl
//分割文件 Y@UW\d*'%I
//实例FileSplitterFetch OUN~7]OD%
//启动FileSplitterFetch线程 t vW0 W
//等待子线程返回 01
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try{ KDP&I J
if(bFirst) n]w%bKc-9
{ %2'4h(Oq^
nFileLength = getFileSize(); ^f(El(w
if(nFileLength == -1) M`=\ijUwN
{ c?c"|.-<p
System.err.println("File Length is not known!"); u@Ni *)p`
} {<Y!'WL{
else if(nFileLength == -2) b/T k$&
{ eln$,zK/b
System.err.println("File is not access!"); .}!.:
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} ?a,`{1m0\
else 0#Q]>V@rO4
{ h3\(660>$
for(int i=0;i<nStartPos.length;i++) meap ;p
{
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); A2PeI"y
} $_a/!)bP
for(int i=0;i<nEndPos.length-1;i++) \Yv44*I`
{ Bbb":c6w0
nEndPos = nStartPos[i+1]; 3$_- 0>
} 1csbuR?
nEndPos[nEndPos.length-1] = nFileLength; F5UHkv"K&O
} u1z!OofN>
} HyQ(9cn|
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//启动子线程 VqOTrB1w/
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; L&5zr_
for(int i=0;i<nStartPos.length;i++) h,fahbH-
{ `B3YP1
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 2of+KI:
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 54s90
nStartPos,nEndPos,i); &MrG ,/
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ^d9o \
fileSplitterFetch.start(); p .~5k
} zJ8 jJFL+Y
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ,>pv>)u{
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); -HFyNk]>
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", --`W1!jI@
nEndPos = " + nFileLength); JQ]MkP
// fileSplitterFetch[nPos.length-1].start(); 8rz,MsFR
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//等待子线程结束 s"wz !{G4
//int count = 0; Pn}oSCo
//是否结束while循环 kRiZ6mn
boolean breakWhile = false; gX5.u9%C\
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while(!bStop) eoiC.$~\
{ 8PRB_ny
write_nPos(); ab_EH}j1\q
Utility.sleep(500); c
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breakWhile = true; {\k:?w4
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for(int i=0;i<nStartPos.length;i++) Y;sN UX
{ 8{Wh4~|+
if(!fileSplitterFetch.bDownOver) ~</H>Jd
{ dM5N1$1,
breakWhile = false; )x&>Cf<,
break; pH?"@
} 4?7OP
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} "3a_C,\
if(breakWhile) *C^`+*}OE$
break; _8?r!D#P;s
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//count++; "Ze<dB#,Y
//if(count>4) Ni61o?]Nj
// siteStop(); !r_2b! dy
} fh}j)*K8
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