/* 5J2tR6u-(
**SiteFileFetch.java ojbms>a
*/ ,/Al'
package NetFox; s<'WTgy1i
import java.io.*; #McX
import java.net.*; t2hI^J0y
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public class SiteFileFetch extends Thread { 7OdJ&Gzd
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SiteInfoBean siteInfoBean = null; //文件信息Bean Z_(P^/
long[] nStartPos; //开始位置 PM8*/4Cu.5
long[] nEndPos; //结束位置 U}c05GiQw
FileSplitterFetch[] fileSplitterFetch; //子线程对象 $0,lE+7*
long nFileLength; //文件长度 ~vV+)KI
boolean bFirst = true; //是否第一次取文件 /7&WFCc)(
boolean bStop = false; //停止标志 {1L{
File tmpFile; //文件下载的临时信息 u,`cmyZ
DataOutputStream output; //输出到文件的输出流 >p>B-m
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) \xjI=P'-25
public SiteFileFetch(SiteInfoBean bean) throws IOException %ou@Y`
{ 9/dI 6 P7
siteInfoBean = bean; ;dquld+q
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); }~!KjFbs
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); k. ?@qCs[
if(tmpFile.exists ()) qt=nN-AC(
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bFirst = false; 0I7 r{T
read_nPos(); cL^r^kL("
} I`uOsZBO/
else _5H0<%\
{ 4=C7V,a
nStartPos = new long[bean.getNSplitter()]; !~-@p?kW/
nEndPos = new long[bean.getNSplitter()]; 4%>2>5
} DgGG*OXY
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} .*{0[
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public void run() {33B%5n"
{ UO}Yr8Z;
//获得文件长度 Q+zy\T
//分割文件 VskdC?yIp
//实例FileSplitterFetch yv2wQ_({
//启动FileSplitterFetch线程 Lem:zXj
//等待子线程返回 ?vg|;Q
try{ _\u?]YTv
if(bFirst) d#u*NwY}
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nFileLength = getFileSize(); Z>_F:1x
if(nFileLength == -1) M&5De{LS}
{ {8w,{p`
System.err.println("File Length is not known!"); qU+qY2S:
} vxl!`$Pi
else if(nFileLength == -2) C~c|};&%
{ O =\`q6l
System.err.println("File is not access!"); VL/KC-6
} {"hyr/SK d
else PGJkQsp0
{ 9IJc9Sv(
for(int i=0;i<nStartPos.length;i++) s/0~!0
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); 8=WX`*-uH
} (dQsR sA
for(int i=0;i<nEndPos.length-1;i++) ]<:qMLg
{ _g%h:G&^
nEndPos = nStartPos[i+1]; hZUnNQ
} 6a4-VX5
nEndPos[nEndPos.length-1] = nFileLength; @0fiui_
} _)-y&
} 3?uah'D5
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//启动子线程 OHK]=DH:M
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; R y"N_Fb
for(int i=0;i<nStartPos.length;i++) 905Lk>rB
{ >m4HCs>
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), l]F)]>AE
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), YTV|]xpR
nStartPos,nEndPos,i); %%^by
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); llRQxk
fileSplitterFetch.start(); \!s0H_RJY
} hg+0!DVx
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), OJXK]dZ
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ySNXjH
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// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", cp L '
nEndPos = " + nFileLength); ]Aa.=
// fileSplitterFetch[nPos.length-1].start(); 'I5~<"E
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//等待子线程结束 {]3Rk
//int count = 0; ~s-"u
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//是否结束while循环 IpKpj"eoLy
boolean breakWhile = false; JXk<t5@D
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while(!bStop) 7R=A]@
{ ?f4jqF~Fh
write_nPos(); G\/7V L
Utility.sleep(500); MRa
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breakWhile = true; *Fm#Qek
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for(int i=0;i<nStartPos.length;i++) 7cly{U"
{ _aK4[*jnqh
if(!fileSplitterFetch.bDownOver) V J]S"
{ SEsLJ?Dv0
breakWhile = false; _>(qQ-Px
break; |5#iPw_wMY
} #uCE0}N@
} R d>PE=u
if(breakWhile) V^qkHm e
break; a:}&v^v
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//count++; sX|bp)Nw
//if(count>4) 8mv}-;
// siteStop(); *."a>?D~
} TY*uK
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System.err.println("文件下载结束!"); be+tAp`
} D5jZ;z}
catch(Exception e){e.printStackTrace ();} o 12wp
} aT20FEZ;
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//获得文件长度 %fB!XCW
public long getFileSize() 9P\R?~3
{ K4j2xSGeo
int nFileLength = -1; q.Vcb!*$
try{ ]}s'`44J9e
URL url = new URL(siteInfoBean.getSSiteURL()); -/gAb<=
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); 6*%E4#4
httpConnection.setRequestProperty("User-Agent","NetFox"); vz}_^8O
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int responseCode=httpConnection.getResponseCode(); _p,1m[&M
if(responseCode>=400) Oj0,Urs7
{ m1,yf*U
processErrorCode(responseCode); T;Zv^:]0
return -2; //-2 represent access is error )&wJ