/* Q9Q|lO
**SiteFileFetch.java CP6LHkM9
*/ Qci4J
package NetFox; i F+vl]
import java.io.*; n/h,Lr)Z
import java.net.*; %?m$`9yU
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public class SiteFileFetch extends Thread { &\Amn?Iq
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SiteInfoBean siteInfoBean = null; //文件信息Bean ~j<+k4I~
long[] nStartPos; //开始位置 3"P }n
long[] nEndPos; //结束位置 5sb\r,kW
FileSplitterFetch[] fileSplitterFetch; //子线程对象 1CHeufQ
long nFileLength; //文件长度 Ry|!pV
boolean bFirst = true; //是否第一次取文件 8KRba4[
boolean bStop = false; //停止标志 f/V
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File tmpFile; //文件下载的临时信息 7P9=)$(EH
DataOutputStream output; //输出到文件的输出流 ldp%{"ZZ
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) LU9A#
public SiteFileFetch(SiteInfoBean bean) throws IOException "70WUx(\t
{ G8;w{-{m
siteInfoBean = bean; 46 PoM
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 0A( +ZMd
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ="g*\s?r
if(tmpFile.exists ())
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{ T8HF|%I
bFirst = false; |<GDUwC_;
read_nPos(); VP6ZiQ|
} yUp,NfS]o
else nH<eR)0
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nStartPos = new long[bean.getNSplitter()]; -UD\;D?$
nEndPos = new long[bean.getNSplitter()]; qv@$ZLR
} ;
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} l'3pQ;
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public void run() *q1% IJ
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//获得文件长度 /jRRf"B
//分割文件 qu-/"w<3$
//实例FileSplitterFetch $bsG]
//启动FileSplitterFetch线程 ]X^rU`":
//等待子线程返回 EcCFbqS4W
try{ IqD_GL)Ms
if(bFirst) M-giR:,
{ `3hSLR
nFileLength = getFileSize(); di>cMS 4 c
if(nFileLength == -1) V7Mh-]
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System.err.println("File Length is not known!"); J52
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} kJ Mf
else if(nFileLength == -2) Yk5}`d!:
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System.err.println("File is not access!"); Yx>"bv
} oD$J0{K6
else Q
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{ 7IjQi=#:
for(int i=0;i<nStartPos.length;i++) yd?x=|
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); q2et|QCru
} fOMvj%T@2
for(int i=0;i<nEndPos.length-1;i++) I:d[Q
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{ :=[XW?L%x
nEndPos = nStartPos[i+1]; n8DxB@DI
} KFFSv{m[
nEndPos[nEndPos.length-1] = nFileLength; ?IGVErnJJC
} g'|MA~4yB
}
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//启动子线程 ?A )hN8
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; &[;HYgp
for(int i=0;i<nStartPos.length;i++) 6A=8+R'`F
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), :G<E^<M\)^
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), !1G ."fo
nStartPos,nEndPos,i); S!sqbLrBn
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); W<