/* \w`Il"}V
**SiteFileFetch.java
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*/ cvc.-7IO
package NetFox; 'MC)%N,
import java.io.*; j[=f;&1
import java.net.*; q 2=^l
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public class SiteFileFetch extends Thread { UkeW2l`:
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SiteInfoBean siteInfoBean = null; //文件信息Bean c.d*DM}W
long[] nStartPos; //开始位置 \WZ00Y,*
long[] nEndPos; //结束位置 Be}Cj(C
FileSplitterFetch[] fileSplitterFetch; //子线程对象 HK
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long nFileLength; //文件长度 >r{,$)H0
boolean bFirst = true; //是否第一次取文件 1_<'S34
boolean bStop = false; //停止标志 zzPgLE55
File tmpFile; //文件下载的临时信息 ..n-&(c32
DataOutputStream output; //输出到文件的输出流 N-vr_4{g
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) EV~_-YC
public SiteFileFetch(SiteInfoBean bean) throws IOException WlG/7$
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siteInfoBean = bean; n1!u
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//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); Yz{UP)TC
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); R=PjLH&)
if(tmpFile.exists ()) i%-c/ lop
{ Q@l3XNH|c
bFirst = false; ^>]p4Q3 6
read_nPos(); bD49$N?>
} u6|7P<HUfb
else "esV#%:#J
{ iUSs) []H>
nStartPos = new long[bean.getNSplitter()]; *UEo&B2+
nEndPos = new long[bean.getNSplitter()]; hX[hR
} :a`l_RMU
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} oBIKtS*L
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public void run() UG1^G07s
{ u*PN1E
//获得文件长度 =1LrU$\
//分割文件 F#W'>WBU
//实例FileSplitterFetch ]k >S0
//启动FileSplitterFetch线程 6B|IbQ^
//等待子线程返回 wn|Sdp
try{ , gz:2UY#
if(bFirst) =Ermh7,
{ x+^iEj`gk
nFileLength = getFileSize(); /S P^fB*y
if(nFileLength == -1) B;_M52-B
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System.err.println("File Length is not known!"); G$`/86A )
} 4.R
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else if(nFileLength == -2) &~uzu{
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System.err.println("File is not access!"); -w^E~J0*L
} wYNh0QlBH
else ].`i`.T
{ N"FQMxqm
for(int i=0;i<nStartPos.length;i++) &K|CH?
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); opdi5e)jK
} V"\t
for(int i=0;i<nEndPos.length-1;i++) .y[=0K:
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nEndPos = nStartPos[i+1]; Z\`uI+`
} K]Ed-Tz8QZ
nEndPos[nEndPos.length-1] = nFileLength; =j}]-!
} kg9ZSkJr
} qfG`H#cA<
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//启动子线程 keCM}V`?"
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; :8\z 0
for(int i=0;i<nStartPos.length;i++) 6fQQKM@a|
{ vvdC.4O
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 7e>n{rl
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), r!j_KiUy
nStartPos,nEndPos,i); ~eE2!/%9
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); z l@
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fileSplitterFetch.start(); y\V!OY@
} =][[TH
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), f~8Xue,l"
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 1j3mTP
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", v(]\o;/O
nEndPos = " + nFileLength); '}]w=2Lf
// fileSplitterFetch[nPos.length-1].start(); mI?AI7DqK
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//等待子线程结束 yj"+!g
//int count = 0; 8@Y]dzgjj
//是否结束while循环 `3\5&B