/* `KA==;0
**SiteFileFetch.java m_/Ut
*/ ,FzkGB#
package NetFox; JT0j2_*Rr
import java.io.*; N)g _LL>^
import java.net.*; $J4\jIipL
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public class SiteFileFetch extends Thread { uE')<fVX(
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SiteInfoBean siteInfoBean = null; //文件信息Bean ^t4^gcoZ4Z
long[] nStartPos; //开始位置 f)T\
long[] nEndPos; //结束位置 >o1dc*
FileSplitterFetch[] fileSplitterFetch; //子线程对象 @`L;_S+
long nFileLength; //文件长度 :VlA2Ih&q
boolean bFirst = true; //是否第一次取文件 q"2APvsvp
boolean bStop = false; //停止标志 -z`FKej
File tmpFile; //文件下载的临时信息 jSE)&K4nI
DataOutputStream output; //输出到文件的输出流 . J O3#
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) EO)JMV?6
public SiteFileFetch(SiteInfoBean bean) throws IOException (1D1;J4g
{ t/Io.d
siteInfoBean = bean; MygAmV&
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); D8L5t<^1R
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); D2&d",%&f
if(tmpFile.exists ()) JyE-c}I
{ CjpGo}a/
bFirst = false; #G]IEO$M6
read_nPos(); GbQi3%
} #9|&;C5',!
else ;
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{ h^=;\ng1l
nStartPos = new long[bean.getNSplitter()]; Ak@!F6~
nEndPos = new long[bean.getNSplitter()]; zJw5+
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} C`;igg$t_
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public void run() O^~IY/[
{ L3Y,z3/
//获得文件长度 7o+L
//分割文件 3XQa%|N(
//实例FileSplitterFetch 4u}Cki,vOK
//启动FileSplitterFetch线程 =_-u;w1D
//等待子线程返回 akyMW7'3V<
try{ bp9RF
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if(bFirst) >p-UQc
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nFileLength = getFileSize(); o664b$5nsI
if(nFileLength == -1) T)I)r239h
{ gf8o~vKX$G
System.err.println("File Length is not known!"); 5m~9Vl-&
} $XQgat@&]
else if(nFileLength == -2) }2;P`s
{ b69nj
System.err.println("File is not access!"); N0w?c 5>
} O +o)z6(
else nvrh7l9nX
{ ^.LB(GZ,
for(int i=0;i<nStartPos.length;i++) j<(E%KN3
{ 0V<kpC,4
nStartPos = (long)(i*(nFileLength/nStartPos.length)); jOfG}:>e\
} 6ncwa<q5
for(int i=0;i<nEndPos.length-1;i++) P'8RaO&d
{ A^z{n/DiL
nEndPos = nStartPos[i+1]; iUcX\
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nEndPos[nEndPos.length-1] = nFileLength; iG54 +]
} KUU{X~w
} b+qd'
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//启动子线程 nIg 88*6b,
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; +w]#26`d
for(int i=0;i<nStartPos.length;i++) Cik1~5iF
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), L/ibnGhq]
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), [>v1JN
nStartPos,nEndPos,i); Cqnuf5e>L
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); yq;[1O_9C
fileSplitterFetch.start(); 1=J& ^O{W
} e7GYz7
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ?:$
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 4x)vy-y
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", PI*@.kqR-
nEndPos = " + nFileLength); 5/n L[4Z
// fileSplitterFetch[nPos.length-1].start(); 2ul8]=
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//等待子线程结束 -6DRX
//int count = 0; C1NU6iV^z
//是否结束while循环 U2YY
boolean breakWhile = false; tsg`c;{
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while(!bStop) 4\-11!'08
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