/* xKR\w!+Z'
**SiteFileFetch.java X [<%T}s#
*/ '-U&S
package NetFox; ]p8zT|bv
import java.io.*; zmU@ k
import java.net.*; SZ29B
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public class SiteFileFetch extends Thread { "(r%`.l=I
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SiteInfoBean siteInfoBean = null; //文件信息Bean 5?MaKNm }
long[] nStartPos; //开始位置 beaSvhPU
long[] nEndPos; //结束位置 =t^jlb
FileSplitterFetch[] fileSplitterFetch; //子线程对象 O1D|T"@
long nFileLength; //文件长度 rFUR9O.{E
boolean bFirst = true; //是否第一次取文件 G9^xv
boolean bStop = false; //停止标志 vgE
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File tmpFile; //文件下载的临时信息 )I#{\^
DataOutputStream output; //输出到文件的输出流 mC0_rN^Aj
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) #c!rx%8I
public SiteFileFetch(SiteInfoBean bean) throws IOException +Xp1=2Mq
{ 2x>7>;>
siteInfoBean = bean; a^={X<K|/
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); MyZVx|7E
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ~-<MoCm!
if(tmpFile.exists ()) 2X<%BFsE
{ %x.du9
bFirst = false; ]1FLG*sB
read_nPos(); 0 N"N$f
} 'W,*mfB
else j7U&a}(
{
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nStartPos = new long[bean.getNSplitter()]; M^*\$K%
nEndPos = new long[bean.getNSplitter()]; e|?eY)_
} 2eHVl.C5
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} /IN#1I!K
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public void run() W]oa7VAq
{ 76bMy4re
//获得文件长度 {,i-V57-h
//分割文件 l$1NI#&
//实例FileSplitterFetch ZNne 8
//启动FileSplitterFetch线程 /vq$/
//等待子线程返回 )Gavjj&uJ
try{ DuNindo8
if(bFirst)
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{ YA@MLZm
nFileLength = getFileSize(); c7~R0nP
if(nFileLength == -1) w
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System.err.println("File Length is not known!"); obE8iG@H
} }zks@7kf
else if(nFileLength == -2) @R}3f6@67
{ |_+#&x
System.err.println("File is not access!"); <#J5.I 1
} OLPY<ax
else $[}EV(#y
{ PW|=IPS
for(int i=0;i<nStartPos.length;i++) k_{?{:X;y
{ Fsm6gE`|n
nStartPos = (long)(i*(nFileLength/nStartPos.length)); pU9.#O
} 5RvE ),
for(int i=0;i<nEndPos.length-1;i++) Q5ff&CE
{ JOpH
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nEndPos = nStartPos[i+1]; (BFwE@1"
} ~;?<OOt|wG
nEndPos[nEndPos.length-1] = nFileLength; pmUf*u-
} YGC%j
} r<vy6
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//启动子线程 a_+?#m
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; `vMhrn
for(int i=0;i<nStartPos.length;i++) y+T[="W
{ 9@ YKx0
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 04jvrde8-O
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), yq49fEgc@U
nStartPos,nEndPos,i); 6F!B*lr
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 8 eK 8-R$
fileSplitterFetch.start(); $&&E[JY
} 2mnAL#
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), FLs$
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); Gc"hU:m
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", [nZIV
nEndPos = " + nFileLength); -&sY