/* SAw. 6<Wy-
**SiteFileFetch.java TYh_uox6
*/ Snf1vH
package NetFox; sa>}wz<o
import java.io.*; ZA/:\6gm
import java.net.*; ZU-vZD>
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public class SiteFileFetch extends Thread { Hb{G
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SiteInfoBean siteInfoBean = null; //文件信息Bean X`FFI6pb
long[] nStartPos; //开始位置 /MQI5Djg
long[] nEndPos; //结束位置 LZG~1tf
FileSplitterFetch[] fileSplitterFetch; //子线程对象 $j!VJGVG
long nFileLength; //文件长度 _3?7iH
boolean bFirst = true; //是否第一次取文件 V:8ph`1
boolean bStop = false; //停止标志 yzQ^KqLH
File tmpFile; //文件下载的临时信息 A#B6]j)
DataOutputStream output; //输出到文件的输出流 34\:1z+s M
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) {Deg1V!x>
public SiteFileFetch(SiteInfoBean bean) throws IOException kdHP
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siteInfoBean = bean; XQ]5W(EP
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); g<r'f"^
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); F(Iq8DV
if(tmpFile.exists ()) r % ]^(
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bFirst = false; JQ.w6aE
read_nPos(); <rs"$JJV
} <n:j@a\up0
else Pq:GvM`
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nStartPos = new long[bean.getNSplitter()]; r6*~WM|Sq7
nEndPos = new long[bean.getNSplitter()]; e)2s2y@zi
} %SJ9Jr,
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} !(EJ. |LH
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public void run() J~[A8o
{ L3g}Z1<!$
//获得文件长度 s!d"(K9E
//分割文件 O1_dA%m
//实例FileSplitterFetch ua]>0\D
//启动FileSplitterFetch线程 6mi:%)"
//等待子线程返回 ?u9JRXj%
try{ K;wd2/jmJ
if(bFirst) ZzuEw
{ bQ"w%!
nFileLength = getFileSize(); MQv2C@K9F
if(nFileLength == -1) Ux Yb[Nbc
{ KF[P
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System.err.println("File Length is not known!"); MH>CCT
} >dW~o_u'QN
else if(nFileLength == -2) [z1[4
{ T53|*~u
System.err.println("File is not access!"); .D`""up|{
} G3&l|@5
else q!
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for(int i=0;i<nStartPos.length;i++) [o=v"s't)
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); 9)a:8/Y
} :u7y k@
for(int i=0;i<nEndPos.length-1;i++) uZ-yu|1
{ t9zF
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nEndPos = nStartPos[i+1];
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} 9cu0$P`}5
nEndPos[nEndPos.length-1] = nFileLength; 4ISZyO=
}
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} gt1W_C\
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//启动子线程 OI9V'W$
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; dX0"h5v1
for(int i=0;i<nStartPos.length;i++) X=<-rFW
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), os]P6TFFX?
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), o1"MW>B,4
nStartPos,nEndPos,i); 72gQ<Si
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 2U-F}Z
fileSplitterFetch.start(); Qifjv0&;u
} G6N$^HkW?
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Dwq }O
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); e)[>E\u _
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", j z aC
nEndPos = " + nFileLength); }?pY~f
// fileSplitterFetch[nPos.length-1].start(); sz' IGy%
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//等待子线程结束 c8cV{}7Kb
//int count = 0; ]Hp o[IF
//是否结束while循环 fXPD^}?Ux4
boolean breakWhile = false; e7<//~W7W
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while(!bStop) BTwLx-p9t
{ \#.@*?fk
write_nPos(); 9}{i8
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