/* ){PL6|5x
**SiteFileFetch.java lAxbF
*/ 0
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package NetFox; r
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import java.io.*; gRk%ObJGqm
import java.net.*; |-W7n'n
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public class SiteFileFetch extends Thread { \Qh{uk[
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SiteInfoBean siteInfoBean = null; //文件信息Bean B} %B4&Ij
long[] nStartPos; //开始位置 =Mb1)^m
long[] nEndPos; //结束位置 iG\]
FileSplitterFetch[] fileSplitterFetch; //子线程对象 dA`.
long nFileLength; //文件长度 ]pZxbs&Vb
boolean bFirst = true; //是否第一次取文件 ^=H. .pr
boolean bStop = false; //停止标志 SxHj3,`#C
File tmpFile; //文件下载的临时信息 {c'2{`px 5
DataOutputStream output; //输出到文件的输出流 CMm:Vea
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) NDJIaX:]
public SiteFileFetch(SiteInfoBean bean) throws IOException cK;,=\
{ pohA??t2:
siteInfoBean = bean; BrdHTk= Vy
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); Ye '=F
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); f__r" N
if(tmpFile.exists ()) dPdodjSu,!
{ #bqc}h9
bFirst = false; I.f)rMl+h
read_nPos(); +J^-B}v
} z$VA]tI(
else yEnurq%J
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nStartPos = new long[bean.getNSplitter()]; X*'tJN$
nEndPos = new long[bean.getNSplitter()]; E|(T(4;
} Oie0cz:>:
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public void run() ]wH,534
{ K0|8h!WF+
//获得文件长度 ?R
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//分割文件 =*VKp{5=
//实例FileSplitterFetch p[Pa(a,B7
//启动FileSplitterFetch线程 N3D{t\hg
//等待子线程返回 )jM'
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try{ X=i^[?C
if(bFirst) e/pZLj]M
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nFileLength = getFileSize(); PdUlwT?8C
if(nFileLength == -1) (v11;k dJB
{ OJ (ho&((
System.err.println("File Length is not known!"); r#ISIgJXG
} p;[">["
else if(nFileLength == -2) xWw Qm'I2}
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System.err.println("File is not access!"); G:W4<w
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else %h)6o99{wF
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for(int i=0;i<nStartPos.length;i++) BT|5"b}
{ Q>jx`68'KI
nStartPos = (long)(i*(nFileLength/nStartPos.length)); ~uF%*
} K.y2 $b/
for(int i=0;i<nEndPos.length-1;i++) C+,JLK
{ pvCf4pf~
nEndPos = nStartPos[i+1]; T6gugDQ~.
} PGaB U3
nEndPos[nEndPos.length-1] = nFileLength; zYCrfr
} :[;]6;
} F/MzrK\':m
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//启动子线程 v8
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fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; > 3<P^-9L
for(int i=0;i<nStartPos.length;i++) ,/d
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{ CdxEY
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), W'3&\}
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), [I4:R_\
nStartPos,nEndPos,i); [(Z sQK
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 5H (CP
fileSplitterFetch.start(); dKs^Dq
} C$9+p@G6
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ,QDS_u$xi&
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); Q_ zGs6
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", *h+@a
nEndPos = " + nFileLength); Pm2T!0
// fileSplitterFetch[nPos.length-1].start(); j"FX ?|4
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//等待子线程结束 X67.%>#3
//int count = 0; :lF[k`S T
//是否结束while循环 /i$-ws-
boolean breakWhile = false; _cz&f