/* p}3` "L=
**SiteFileFetch.java V@g v
*/ [YP{%1*RM
package NetFox; [GPCd@
import java.io.*; y XKddD
import java.net.*; CY*o"@-o5)
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public class SiteFileFetch extends Thread { #i.,+Q
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SiteInfoBean siteInfoBean = null; //文件信息Bean #}Yrxf
long[] nStartPos; //开始位置 -#v1/L/=
long[] nEndPos; //结束位置 {G0=A~
FileSplitterFetch[] fileSplitterFetch; //子线程对象 c<, LE@V
long nFileLength; //文件长度 %&_^I*
boolean bFirst = true; //是否第一次取文件 !zvjgDlZv
boolean bStop = false; //停止标志 PtYG%/s
File tmpFile; //文件下载的临时信息 .uVd'
DataOutputStream output; //输出到文件的输出流 6I: 6+n
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) O/|))H?C
public SiteFileFetch(SiteInfoBean bean) throws IOException U(0FL6sPC
{ 7O'.KoMw
siteInfoBean = bean; Q-<Qm ?
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); Ml$<x"Q
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 5D.Sg;\
if(tmpFile.exists ()) j g//I<D
{ e
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bFirst = false; 7*j!ZUzp
read_nPos(); :_y!p
} N2k<W?wQ
else .dMdb7
{ V*ao@;sD
nStartPos = new long[bean.getNSplitter()]; 76"4Q!
nEndPos = new long[bean.getNSplitter()]; r<vy6
} VP>*J`'H
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} (:qc[,m
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public void run() 5wmd[YL
{ #GLW3}
//获得文件长度 5?F5xiW
//分割文件 t[J=8rhER
//实例FileSplitterFetch oz>2P.7
//启动FileSplitterFetch线程 M,S'4Szuk
//等待子线程返回 $%q=tn'EX
try{ nX 9]dz
if(bFirst) S\h5
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{ v+"4YIN
nFileLength = getFileSize(); w6Nnx5Ay
if(nFileLength == -1) CxeW5qc
{ `:Gzjngc
System.err.println("File Length is not known!"); JC%&d1
} 4MS#`E7LrC
else if(nFileLength == -2) 5LB{b]w7m
{ Jn^b}bk t
System.err.println("File is not access!"); Hc=QSP
} C6[W/,eS
else t+}wTis
{ Bp_R"DS7A
for(int i=0;i<nStartPos.length;i++) 7]xDMu'^&f
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); ^l|b>z"0ao
} A
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for(int i=0;i<nEndPos.length-1;i++) 8'zZVX D<
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nEndPos = nStartPos[i+1]; sa4w.9O1GS
} *9"x0bth
nEndPos[nEndPos.length-1] = nFileLength; s6@mXO:H^
} HB8s[]A:D
} l@Vv%w9H
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//启动子线程 A$3Rbn}"
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; IO)#O<
for(int i=0;i<nStartPos.length;i++) m9oOH5@K~
{ H:]cBk^[,
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), @2/|rq
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), OIL8'xY.w
nStartPos,nEndPos,i); NDP"
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Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); [p9v#\G; [
fileSplitterFetch.start(); W\k8f+Ke
} ?:J_+?{E
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), VwE4:/7YN
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); HKXC=^}x'
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", +q}t%K5
nEndPos = " + nFileLength); 8^>c_%e}
// fileSplitterFetch[nPos.length-1].start(); l P3|h*
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//等待子线程结束 bu|.Jw"
//int count = 0; zo(#tQ-'m
//是否结束while循环 6sSwSS
boolean breakWhile = false; <'~m1l#2
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