/* 'J0s%m|j
**SiteFileFetch.java n(xlad
*/ _ rVX_
package NetFox; < LAD
import java.io.*; LVl0:!>~
import java.net.*; w}q@VVB%
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public class SiteFileFetch extends Thread { Zw\V}uXI?
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SiteInfoBean siteInfoBean = null; //文件信息Bean IX?%H!i
long[] nStartPos; //开始位置 <+,0G`
long[] nEndPos; //结束位置 VCRv(Ek
FileSplitterFetch[] fileSplitterFetch; //子线程对象 B^Mtj5Oc
long nFileLength; //文件长度 :!!`!*!JH
boolean bFirst = true; //是否第一次取文件 !TZ/PqcE
boolean bStop = false; //停止标志 )stWr r&
File tmpFile; //文件下载的临时信息 B2WX#/lgd
DataOutputStream output; //输出到文件的输出流 4EbiCSo
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) :I(gz~u6
public SiteFileFetch(SiteInfoBean bean) throws IOException )nxIxr0d-
{ n<&R"89
siteInfoBean = bean; &+^ Y>Ke
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); <qY>d,+E'
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ^uElQI
if(tmpFile.exists ()) lG#&1
{ lA
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bFirst = false; &'\+Z
read_nPos(); gt (nZ
} gF5EtdN?|
else V46[whL%r
{ !sQ8,l0h
nStartPos = new long[bean.getNSplitter()]; EZRZ)h
nEndPos = new long[bean.getNSplitter()]; K -1~K
} \ySc uT
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} K#< Wt5
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public void run() k T>}(G||
{ :E`l(sI7J}
//获得文件长度 F|{?GV%hF
//分割文件 5B/\vLHg4
//实例FileSplitterFetch "0)G|pZI
//启动FileSplitterFetch线程 P;p g+L.I
//等待子线程返回 7N=VVD~!b
try{ # |[@Due
if(bFirst) $0 zL
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nFileLength = getFileSize(); FWTl:LqFO
if(nFileLength == -1) mLA$F4/K
{ j=>Gfo
System.err.println("File Length is not known!"); P32'`!/:
} Y
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else if(nFileLength == -2) wVtBeZa
{ $Ws2g*i
System.err.println("File is not access!"); #eyx
} ITUl-L4xE
else (5;xs
{ ) <~7<.0
for(int i=0;i<nStartPos.length;i++) W78-'c
{ {z_pL^S'52
nStartPos = (long)(i*(nFileLength/nStartPos.length)); .6#2i <oPW
} M4\Io]}-M
for(int i=0;i<nEndPos.length-1;i++) Zotv] P2k
{ wuQkeWxJ
nEndPos = nStartPos[i+1]; YWFHiB7x
} f+AIxSw
nEndPos[nEndPos.length-1] = nFileLength; ox#4|<qM
} z#
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} 1bs95Fh9Q
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//启动子线程 -;z\BW5y
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; dUSuhT
for(int i=0;i<nStartPos.length;i++) T/5UlW|\
{ U6PUt'Kk@
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), '|R|7nQAj
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), S3cQC`^
nStartPos,nEndPos,i); ~zRd||qv
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); I =pd jD
fileSplitterFetch.start(); -H]O&u3'c
} N6'Y
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// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), uGWk(qn
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); =&GV\ju
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", W#\4"'=I
nEndPos = " + nFileLength); UU`qI}Ys8F
// fileSplitterFetch[nPos.length-1].start(); ]F!h~>
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//等待子线程结束 v}@6"\
//int count = 0; GssoT<Y)Z
//是否结束while循环 Mla,"~4D5
boolean breakWhile = false; cG6+'=]3<
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while(!bStop) SfT ]C~#$N
{ 0IuU4h5Fr
write_nPos(); OYy8u{@U:
Utility.sleep(500); 9,+LNZ'k
breakWhile = true; +.St"f/1
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for(int i=0;i<nStartPos.length;i++) \g/E4U.+
{ :;QLoZh^
if(!fileSplitterFetch.bDownOver) S)?B
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{ '#?hm-Ga
breakWhile = false; '/?&Go